├── prog
    ├── jpa
    │   └── eclipselink-jpa-faq.txt
    ├── tcl
    │   └── tcl-faq.txt
    ├── ejb
    │   ├── interceptor
    │   │   ├── src
    │   │   │   ├── conf
    │   │   │   │   ├── MANIFEST.MF
    │   │   │   │   └── ejb-jar.xml
    │   │   │   └── java
    │   │   │   │   └── myapp
    │   │   │   │       ├── NewClass.java
    │   │   │   │       ├── TimerBean.java
    │   │   │   │       └── InterceptorBean.java
    │   │   ├── .gitattributes
    │   │   ├── .gitignore
    │   │   ├── nbproject
    │   │   │   ├── genfiles.properties
    │   │   │   ├── project.xml
    │   │   │   └── project.properties
    │   │   └── build.xml
    │   ├── ejb-faq.txt
    │   └── ejb-rationale.txt
    ├── cvs
    │   ├── cvs-faq.txt
    │   └── cvsnt-faq.txt
    ├── db2
    │   ├── db2-faq.txt
    │   └── hadr
    │   │   └── hadr-faq.txt
    ├── autoconf
    │   └── autoconf-faq.txt
    ├── make
    │   └── make-faq.txt
    ├── perl
    │   ├── perl-faq.txt
    │   └── throttle.pl
    ├── stm32
    │   ├── simulation.ods
    │   └── ecdt
    │   │   └── ecdt-faq.txt
    ├── eclipse
    │   ├── .gitattributes
    │   ├── .gitignore
    │   └── eclipse-faq.txt
    ├── nexus
    │   ├── cygwin-mirror.png
    │   └── sonatype-nexus-faq.txt
    ├── glassfish
    │   ├── glassfish-bugs.txt
    │   └── glassfish-faq.txt
    ├── documentum
    │   ├── xcp-downsides-1.png
    │   ├── change-orientation.gif
    │   ├── documentum-config-bridge.jar
    │   ├── xcp-rename-project.txt
    │   ├── xcp-ui-events.txt
    │   ├── dqman-faq.txt
    │   ├── xcpdesigner.ini.txt
    │   ├── xcp-edit-form.txt
    │   ├── xcp-export-csv.txt
    │   ├── xcp-msg-preview.txt
    │   ├── xcp-result-list-arq.txt
    │   ├── dql-faq.txt
    │   ├── xcp-downsides.txt
    │   └── xcp-editable-grid.txt
    ├── mendix
    │   ├── atlas-faq.txt
    │   ├── extract-glyphicons
    │   │   ├── test.html
    │   │   ├── cygwin-packages.txt
    │   │   └── reportLabPen.py
    │   ├── xcp-mendix-cheatsheet.txt
    │   ├── gulp-faq.txt
    │   ├── mendix-generator-faq.txt
    │   └── mendix-error-handling-results.txt
    ├── openoffice
    │   ├── bootstrapconnector.pwd.1.zip
    │   ├── 1448819236_org-openoffice-extensions-4.1.4.pwd.1.zip
    │   └── openoffice-faq.txt
    ├── confluence
    │   ├── from-html.txt
    │   └── crawl-download.py
    ├── ant
    │   └── ant-faq.txt
    ├── maven
    │   ├── settings.xml
    │   └── maven-faq.txt
    ├── java
    │   ├── java-inherent-defects.txt
    │   ├── jpa
    │   │   ├── jpa-faq.txt
    │   │   ├── eclipselink-jpa-faq.txt
    │   │   └── eclipselink-jpa-bugs.txt
    │   ├── SneakyThrow.java
    │   ├── webapp
    │   │   └── webapp-faq.txt
    │   ├── PrintClassloaders.java
    │   ├── pretty-xml.txt
    │   ├── java8-faq.txt
    │   ├── MyParentLastClassloader.java
    │   └── jaxb
    │   │   └── StAXUnmarshalAny.txt
    ├── ffmpeg
    │   ├── scenes
    │   │   ├── findscenes
    │   │   └── cutscenes
    │   ├── cue_to_mp3.py
    │   └── ffmpeg-faq.txt
    ├── javascript
    │   ├── remove-query-param.txt
    │   └── js-faq.txt
    ├── pentaho
    │   └── pentaho-faq.txt
    ├── mysql
    │   ├── mysql-windows-faq.txt
    │   └── mysql-faq.txt
    ├── jdbc
    │   └── ojdbc.txt
    ├── vbscript
    │   └── vbscript-faq.txt
    ├── soapui
    │   └── soapui-faq.txt
    ├── imagemagick
    │   └── imagemagick-faq.txt
    ├── jetty
    │   └── jetty-faq.txt
    ├── firefox
    │   └── firefox-faq.txt
    ├── groovy
    │   └── groovy-faq.txt
    ├── turnserver
    │   └── turnserver-faq.txt
    ├── gcc
    │   └── gcc-faq.txt
    ├── extjs
    │   └── extjs-faq.txt
    ├── haproxy
    │   └── haproxy-faq.txt
    ├── android
    │   └── android-faq.txt
    ├── cisco-anyconnect
    │   └── anyconnect-faq.txt
    ├── openconnect
    │   └── mingw-build.txt
    ├── openssl
    │   └── openssl-faq.txt
    ├── netbeans
    │   └── netbeans-faq.txt
    ├── jenkins
    │   └── jenkins-faq.txt
    └── gdb
    │   └── gdb-faq.txt
├── unix
    ├── linux
    │   ├── postfix
    │   │   └── 01_sm.png
    │   ├── rhel
    │   │   ├── 7.x
    │   │   │   ├── glusterfs.txt
    │   │   │   ├── aaa.txt
    │   │   │   └── openafs-faq.txt
    │   │   ├── 6.x
    │   │   │   └── etc
    │   │   │   │   └── init.d
    │   │   │   │       └── powermail
    │   │   └── partextend
    │   ├── btrfs-faq.txt
    │   └── il
    │   │   ├── fs-default
    │   │       └── etc
    │   │       │   ├── mdadm.conf
    │   │       │   └── ssh
    │   │       │       └── sshd_config
    │   │   └── fs
    │   │       └── etc
    │   │           ├── mdadm.conf
    │   │           └── ssh
    │   │               └── sshd_config
    ├── udp-shell
    │   └── udp-shell.txt
    ├── armbian
    │   ├── owhttpd.txt
    │   └── heatrobot.sh
    ├── openwrt
    │   └── openwrt-virtualbox
    │   │   └── openwrt-virtualbox-setup.txt
    └── cygwin
    │   └── cygwin-faq.txt
├── README.md
├── windows
    └── anon-share
    │   ├── NullSessionShares.inf
    │   ├── NullSessionShares.reg
    │   └── NullSessionShares.bat
├── oracle
    └── sqldeveloper-faq.txt
└── linux
    └── archlinux
        └── fs
            └── $HOME
                └── p3wm-all


/prog/jpa/eclipselink-jpa-faq.txt:
--------------------------------------------------------------------------------
1 | 


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/prog/tcl/tcl-faq.txt:
--------------------------------------------------------------------------------
1 | Q:
2 | A:
3 | 


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/prog/ejb/interceptor/src/conf/MANIFEST.MF:
--------------------------------------------------------------------------------
1 | Manifest-Version: 1.0
2 | 
3 | 


--------------------------------------------------------------------------------
/prog/cvs/cvs-faq.txt:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/basinilya/wisdom/HEAD/prog/cvs/cvs-faq.txt


--------------------------------------------------------------------------------
/prog/db2/db2-faq.txt:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/basinilya/wisdom/HEAD/prog/db2/db2-faq.txt


--------------------------------------------------------------------------------
/prog/ejb/ejb-faq.txt:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/basinilya/wisdom/HEAD/prog/ejb/ejb-faq.txt


--------------------------------------------------------------------------------
/prog/autoconf/autoconf-faq.txt:
--------------------------------------------------------------------------------
1 | Q: new m4 macro not picked by autoconf
2 | A: aclocal --force
3 | 


--------------------------------------------------------------------------------
/prog/make/make-faq.txt:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/basinilya/wisdom/HEAD/prog/make/make-faq.txt


--------------------------------------------------------------------------------
/prog/perl/perl-faq.txt:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/basinilya/wisdom/HEAD/prog/perl/perl-faq.txt


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/prog/stm32/simulation.ods:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/basinilya/wisdom/HEAD/prog/stm32/simulation.ods


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/prog/eclipse/.gitattributes:
--------------------------------------------------------------------------------
1 | /.classpath text
2 | /.project text
3 | /.settings/** text
4 | *.launch text
5 | 


--------------------------------------------------------------------------------
/prog/ejb/ejb-rationale.txt:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/basinilya/wisdom/HEAD/prog/ejb/ejb-rationale.txt


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/prog/nexus/cygwin-mirror.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/basinilya/wisdom/HEAD/prog/nexus/cygwin-mirror.png


--------------------------------------------------------------------------------
/unix/linux/postfix/01_sm.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/basinilya/wisdom/HEAD/unix/linux/postfix/01_sm.png


--------------------------------------------------------------------------------
/prog/glassfish/glassfish-bugs.txt:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/basinilya/wisdom/HEAD/prog/glassfish/glassfish-bugs.txt


--------------------------------------------------------------------------------
/prog/documentum/xcp-downsides-1.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/basinilya/wisdom/HEAD/prog/documentum/xcp-downsides-1.png


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/prog/mendix/atlas-faq.txt:
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1 | Q: horizontal scrollbar in pop-up
2 | A: A form widget is not enclosed with a layout grid
3 | 


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/README.md:
--------------------------------------------------------------------------------
1 | # wisdom
2 | 
3 | This is a collection of answers in different areas of programming that I can't keep in my head.
4 | 


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/prog/documentum/change-orientation.gif:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/basinilya/wisdom/HEAD/prog/documentum/change-orientation.gif


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/windows/anon-share/NullSessionShares.inf:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/basinilya/wisdom/HEAD/windows/anon-share/NullSessionShares.inf


--------------------------------------------------------------------------------
/windows/anon-share/NullSessionShares.reg:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/basinilya/wisdom/HEAD/windows/anon-share/NullSessionShares.reg


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/prog/documentum/documentum-config-bridge.jar:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/basinilya/wisdom/HEAD/prog/documentum/documentum-config-bridge.jar


--------------------------------------------------------------------------------
/prog/openoffice/bootstrapconnector.pwd.1.zip:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/basinilya/wisdom/HEAD/prog/openoffice/bootstrapconnector.pwd.1.zip


--------------------------------------------------------------------------------
/prog/openoffice/1448819236_org-openoffice-extensions-4.1.4.pwd.1.zip:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/basinilya/wisdom/HEAD/prog/openoffice/1448819236_org-openoffice-extensions-4.1.4.pwd.1.zip


--------------------------------------------------------------------------------
/unix/udp-shell/udp-shell.txt:
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1 | Server:
2 | socat "EXEC:/bin/sh,stderr" "UDP-DATAGRAM:[::1]:24,bind=[::1]:23,reuseaddr"
3 | 
4 | Client:
5 | socat - "UDP-DATAGRAM:[::1]:23,bind=[::1]:24,reuseaddr"
6 | 


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/prog/confluence/from-html.txt:
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1 | - unwrap: html/body
2 | - no <script>
3 | - no <noscript>
4 | - css class names safely persisted
5 | - <div> ?
6 | - important to preserve list-style:none; for no bullets
7 | - important to preserve float:left; for horizontal lists
8 | 
9 | 


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/prog/ant/ant-faq.txt:
--------------------------------------------------------------------------------
 1 | Q: verbose errors
 2 | A: -verbose
 3 | 
 4 | Q: multiple Trying to override old definition of task
 5 | A: put the overriding into an "init" target and depend on it
 6 | 
 7 | Q: loops
 8 | A: ant-contrib required
 9 | 
10 | Q: to absolute path
11 | A: 


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/prog/maven/settings.xml:
--------------------------------------------------------------------------------
1 | <settings xmlns="http://maven.apache.org/SETTINGS/1.1.0"
2 | 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
3 | 	xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.1.0 http://maven.apache.org/xsd/settings-1.1.0.xsd">
4 | 
5 | </settings>
6 | 


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/windows/anon-share/NullSessionShares.bat:
--------------------------------------------------------------------------------
1 | rem Create the key with proper letter case
2 | regedit NullSessionShares.reg
3 | 
4 | rem Set the key value and refresh the policy
5 | secedit /configure /db %temp%\secedit.sdb /cfg NullSessionShares.inf /log %temp%\NullSessionShares.log
6 | 
7 | pause
8 | 


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/prog/nexus/sonatype-nexus-faq.txt:
--------------------------------------------------------------------------------
 1 | sonatype-nexus-faq
 2 | 
 3 | Q: default password
 4 | A: admin/admin123
 5 | 
 6 | Q: proxy settings
 7 | A: nexus/nexus-2.2-01/bin/jsw/conf/wrapper.conf
 8 | 
 9 | wrapper.java.additional.1=-DsocksProxyHost=proxy.acme.com
10 | wrapper.java.additional.2=-DsocksProxyPort=1080
11 | 


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/prog/ejb/interceptor/.gitattributes:
--------------------------------------------------------------------------------
 1 | # Auto detect text files and perform LF normalization
 2 | *        text=auto
 3 | 
 4 | #
 5 | # prettier diff
 6 | *.java   diff=java
 7 | #
 8 | # This file will be normalized by Netbeans
 9 | # If seen as modified, use `git add`
10 | genfiles.properties text
11 | build-impl.xml text
12 | project.xml text
13 | 


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/prog/ejb/interceptor/.gitignore:
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 1 | # temporary files, including nbproject/build-impl.xml~
 2 | *~
 3 | 
 4 | target/
 5 | 
 6 | .classpath
 7 | .project
 8 | .settings
 9 | .checkstyle
10 | .idea
11 | 
12 | nb-configuration.xml
13 | nbactions.xml
14 | 
15 | build-impl.xml
16 | **/nbproject/private/
17 | 
18 | build/
19 | dist/
20 | /DbMapperAdd/build


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/prog/java/java-inherent-defects.txt:
--------------------------------------------------------------------------------
 1 | - InputStream.available() behavior undefined in case of pipe EOF
 2 |   Linux: throws IOException
 3 |   Windows: returns 0
 4 | 
 5 | - "java.protocol.handler.pkgs" can only find handlers in the System Classloader
 6 |   Webapps and EJBs can't register URL handlers
 7 | 
 8 | - URLStreamHandler abstract methods not public
 9 |   To create a delegating URLStreamHandler one has to resort to reflection to call the methods of the delegate
10 | 
11 | 


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/prog/openoffice/openoffice-faq.txt:
--------------------------------------------------------------------------------
 1 | Q: page setup
 2 | A: Format > Page Style > Page
 3 | 
 4 | Q: show vertical ruler
 5 | A: view -> rulers -> vertical ruler
 6 | 
 7 | Q: crop image
 8 | A: image properties / 6th tab
 9 | 
10 | Q: jpipe.dll: Can't find dependent libraries
11 | A: set PATH=...\program\;%PATH%
12 | 
13 | Q: Insert text at a bookmark.
14 | A:
15 |   oBookMark = oDoc.getBookmarks().getByName("<yourBookmarkName>")
16 |   oBookMark.getAnchor.setString("What you want to insert")


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/prog/ffmpeg/scenes/findscenes:
--------------------------------------------------------------------------------
 1 | #!/bin/bash
 2 | 
 3 | shopt -s nullglob
 4 | 
 5 | set -e
 6 | 
 7 | rm -rf vhs*.txt vhs*.avi/
 8 | 
 9 | for f in ../vhs/vhs.??.*; do
10 | 
11 |   s=${f##*/}
12 |   txt=$s.txt
13 |   echo "$f"
14 |   mkdir -p "$s"
15 |   ffmpeg -hide_banner -i "$f" -filter_complex "select='gt(scene,0.25)',metadata=print:file=$txt" -vsync vfr "$s/img%03d.jpg"
16 |   #ffmpeg -hide_banner -i "$f" -filter_complex "select='gt(scene,0.3)',metadata=print:file=$txt" -f null -
17 |   #break
18 |   
19 | done
20 | 


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/prog/mendix/extract-glyphicons/test.html:
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 1 | <style>
 2 | @font-face {
 3 |   font-family: "Glyphicons Halflings";
 4 |   src: url("./glyphicons-halflings-regular.woff2") format("woff2"), url("./glyphicons-halflings-regular.woff") format("woff");
 5 | }
 6 | .glyphicon:before {
 7 |   font-family: "Glyphicons Halflings";
 8 | }
 9 | 
10 | .glyphicon-user:before {
11 |     content: '\e008';
12 | }
13 | </style>
14 | 
15 | <div class="glyphicon glyphicon-user" style="font-size: 240px;"></div>
16 | <image src="uniE008.png"/>
17 | 


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/prog/java/jpa/jpa-faq.txt:
--------------------------------------------------------------------------------
 1 | Q: JPQL where in list
 2 | A: just put a parameter of java.util.Collection to the parameter map and use in(?1)
 3 | 
 4 | Q: batch select related entities
 5 | A:
 6 |   Eclipselink: @BatchFetch
 7 |   Hibernate: @BatchSize
 8 | 
 9 | Q: invalidate cache
10 | A: 
11 |     em.getEntityManagerFactory().getCache().evictAll();
12 |     https://khartig.wordpress.com/2011/10/23/clearing-cache-in-jpa-2-0/
13 | 
14 | Q: select complex types
15 | A: 
16 |   - JOIN FETCH
17 |   - eager
18 |   - result mapping
19 | 


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/prog/ejb/interceptor/nbproject/genfiles.properties:
--------------------------------------------------------------------------------
1 | build.xml.data.CRC32=a685ba3e
2 | build.xml.script.CRC32=94e7cfe8
3 | build.xml.stylesheet.CRC32=5910fda3@1.56.1
4 | # This file is used by a NetBeans-based IDE to track changes in generated files such as build-impl.xml.
5 | # Do not edit this file. You may delete it but then the IDE will never regenerate such files for you.
6 | nbproject/build-impl.xml.data.CRC32=a685ba3e
7 | nbproject/build-impl.xml.script.CRC32=324bf13b
8 | nbproject/build-impl.xml.stylesheet.CRC32=6096d939@1.56.1
9 | 


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/prog/javascript/remove-query-param.txt:
--------------------------------------------------------------------------------
 1 | replaceString = function (str,pattern,newStr) {
 2 |     var regEx = new RegExp(pattern);
 3 |     return str.replace(regEx,newStr);
 4 | };
 5 | 
 6 | test = function(str) {
 7 |   return replaceString(str, '(?:(^[?]|&)(?=.*&)|^[?]|&)' + 'reload' + '(?:[=][^&]*)?(?:&|$)','$1')
 8 | };
 9 | 
10 | 
11 | test('?reload')
12 | test('?reload=')
13 | test('?a=b&reload')
14 | test('?a=b&reload=xxx')
15 | test('?reload&a=b')
16 | test('?reload=1&a=b')
17 | test('?a=b&reload&c=d')
18 | test('?a=b&reload=1&c=d')
19 | 


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/prog/documentum/xcp-rename-project.txt:
--------------------------------------------------------------------------------
 1 | ns_src='tst'
 2 | ns_dst='hds'
 3 | 
 4 | name_src='TestApp'
 5 | name_dst='HandlerDS'
 6 | 
 7 | grep -Zlrw "${ns_src:?}" "${name_src:?}" | xargs -0 sed -bi "s/\(^\|[^A-Za-z0-9]\)${ns_src:?}\([^A-Za-z0-9]\|$\)/\1${ns_dst:?}\2/g"
 8 | 
 9 | grep -Zlrw "${name_src:?}" "${name_src:?}" | xargs -0 sed -bi "s/\(^\|[^A-Za-z0-9]\)${name_src:?}\([^A-Za-z0-9]\|$\)/\1${name_dst:?}\2/g"
10 | 
11 | git diff --word-diff-regex="[A-Za-z0-9]+"
12 | 
13 | 
14 | grep -lrw "${ns_src:?}" "${name_src:?}"
15 | grep -lrw "${name_src:?}" "${name_src:?}"
16 | 
17 | 
18 | git mv "${name_src:?}" "${name_dst:?}"
19 | 


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/prog/java/jpa/eclipselink-jpa-faq.txt:
--------------------------------------------------------------------------------
 1 | Q: type mapping
 2 | A:
 3 | java.sql.Timestamp    DATETIME
 4 | java.sql.Date         DATE
 5 | java.util.Date        DATETIME
 6 | java.sql.Time         TIME
 7 | 
 8 | Q:
 9 |   NullPointerException
10 |   at org.eclipse.persistence.internal.jpa.metadata.MetadataProject.hasEntity
11 | A:
12 |   @Entity
13 |   public class SerialBus<D extends V24Device> implements Serializable {
14 |       private Map<String, D> endpointsByBusAddr = new HashMap<>(); // NPE
15 |       // replace with this:
16 |       // private Map<String, ? extends V24Device> endpointsByBusAddr = new HashMap<>();
17 | 
18 | 


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/prog/documentum/xcp-ui-events.txt:
--------------------------------------------------------------------------------
 1 | xCP UI Events
 2 | 
 3 | A published event is not deferred. Its subscribers are executed in the same call recursively. An event must not republish itself, otherwise a stack overflow may happen.
 4 | 
 5 | For deferring use "set value" and "change" of a hidden value display. The "set value" subscriber is executed synchronously itself, but it defers the setValue() call. The evaluation of the  "set value" expression is deferred too. The condition is not deferred.
 6 | 
 7 | The position of a "set value" subscriber may affect the expressions result.
 8 | 
 9 | 
10 | Q: get UI event property in javascript
11 | A: 


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/prog/pentaho/pentaho-faq.txt:
--------------------------------------------------------------------------------
 1 | install
 2 | - pentaho bi server
 3 | - schema workbench
 4 | 
 5 | copy missing jdbc driver jars to tomcat/lib
 6 | 
 7 | edit pentaho-solutions/system/publisher_config.xml
 8 |   <publisher-password>password</publisher-password>
 9 | 
10 | start server
11 | http://localhost:8080/pentaho/
12 | login:    joe
13 | password: password
14 | 
15 | File/Manage/Data Sources "+"
16 |   Source type: database
17 |     Connection "+"
18 |       Connection Name "testconn"
19 |       Test
20 |       OK
21 |     Cancel
22 | 
23 | schema workbench
24 |   open schema
25 |   publish
26 |     Pentaho or JNDI Data Souce "testconn"
27 | 
28 | 


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/prog/mysql/mysql-windows-faq.txt:
--------------------------------------------------------------------------------
 1 | Q: defaults
 2 | A: 
 3 |   mysql.exe\..\my.cnf
 4 |   C:\Windows\my.ini
 5 |   C:\Windows\my.cnf
 6 |   C:\my.ini
 7 |   C:\my.cnf
 8 | 
 9 | Q: cleanup list of products in mysql installer 
10 | A:
11 | - Find the product installation date/path in the GUI
12 | - Look for matching InstallDate/InstallLocation under:
13 |     HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\896CA1A59B282694F95FAEABBD5A1A42
14 |     or
15 |     HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products\896CA1A59B282694F95FAEABBD5A1A42
16 | - Delete the whole key
17 | 
18 | 5.7.25: A7F292BDBB349414D8C149786BA9355A


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/prog/mendix/xcp-mendix-cheatsheet.txt:
--------------------------------------------------------------------------------
 1 | ???/??? -> parent/child  
 2 |   BOTH 	     Both the parent Mendix object and the child object are owner.
 3 |   DEFAULT 	 The parent Mendix object is the owner.
 4 | 
 5 | Stateless Process -> Microflow
 6 | Activity -> Action
 7 | Fragment -> Snippet
 8 | Parameters -> "Constants"
 9 | Relation -> Association
10 | 
11 | IDfSysObject.saveAsNew() -> CommunityCommons.Clone
12 | 
13 | CHANGE type OBJECTS TO newtype dql -> 
14 |   Not easily implemented. The object ID must be changed when the type changes.
15 |   It's cleaner to create another instance of the object with the new type
16 |   and restore its attributes and associations
17 | 


--------------------------------------------------------------------------------
/prog/ejb/interceptor/src/java/myapp/NewClass.java:
--------------------------------------------------------------------------------
 1 | package myapp;
 2 | 
 3 | import java.util.logging.Logger;
 4 | import javax.annotation.PostConstruct;
 5 | import javax.ejb.EJB;
 6 | import javax.ejb.Singleton;
 7 | import javax.ejb.Startup;
 8 | import javax.ejb.Stateless;
 9 | 
10 | @Singleton
11 | @Startup
12 | public class NewClass {
13 | 
14 |     @EJB
15 |     private TimerBean bean;
16 |     
17 |     @PostConstruct
18 |     protected void init() {
19 |         LOGGER.severe("PostConstruct");
20 |         bean.someMethod();
21 |         bean.someMethod2();
22 |     }
23 | 
24 |     private static final Logger LOGGER = Logger.getLogger(NewClass.class.getName());
25 | }
26 | 


--------------------------------------------------------------------------------
/prog/eclipse/.gitignore:
--------------------------------------------------------------------------------
 1 | /.settings/
 2 | /derby.log
 3 | 
 4 | # Java class files
 5 | *.class
 6 | 
 7 | # generated files
 8 | /bin/
 9 | /classes/
10 | /test-classes/
11 | /gen/
12 | /junit-reports/
13 | 
14 | # Local configuration file (sdk path, etc)
15 | local.properties
16 | 
17 | 
18 | *.pydevproject
19 | #.project
20 | .metadata
21 | /bin/**
22 | tmp/**
23 | tmp/**/*
24 | *.tmp
25 | *.bak
26 | *.swp
27 | *~.nib
28 | local.properties
29 | #.classpath
30 | #.settings/
31 | .loadpath
32 | 
33 | # External tool builders
34 | .externalToolBuilders/
35 | 
36 | # Locally stored "Eclipse launch configurations"
37 | *.launch
38 | 
39 | # CDT-specific
40 | .cproject
41 | 
42 | # PDT-specific
43 | .buildpath
44 | 


--------------------------------------------------------------------------------
/prog/ejb/interceptor/src/java/myapp/TimerBean.java:
--------------------------------------------------------------------------------
 1 | 
 2 | package myapp;
 3 | 
 4 | import java.util.logging.Logger;
 5 | import javax.ejb.Schedule;
 6 | import javax.ejb.Startup;
 7 | import javax.ejb.Stateless;
 8 | 
 9 | @Stateless
10 | public class TimerBean {
11 |     
12 |     public void someMethod() {
13 |         LOGGER.severe("someMethod");
14 |     }
15 | 
16 |     public void someMethod2() {
17 |         LOGGER.severe("someMethod2");
18 |     }
19 |     
20 |     @Schedule(minute="*/1", hour="*")
21 |     public void automaticTimerMethod() {
22 |         LOGGER.severe("automaticTimerMethod");
23 |     }
24 | 
25 |     private static final Logger LOGGER = Logger.getLogger(TimerBean.class.getName());
26 | }
27 | 


--------------------------------------------------------------------------------
/prog/documentum/dqman-faq.txt:
--------------------------------------------------------------------------------
 1 | Q: escape curly bracket
 2 | A: {{
 3 | 
 4 | Q:
 5 |   API script
 6 |   API> set,c,last,parent_id
 7 |   
 8 |   0b01e2408001b4cc
 9 |   
10 |   ...
11 |   [DFC_OBJECT_BADATTRVALUE] invalid object id string - 0b01e2408001b4cc
12 | 
13 | A:
14 |   You must convert the text file to CRLF before pasting. Good output:
15 | 
16 |   API> set,c,last,parent_id
17 |   0b01e2408001b4cc
18 |   ...
19 |   OK
20 | 
21 | 
22 | Q: Unsupported Major
23 | A: Install dfc_7.3_win.zip
24 | 
25 | Q: extra classpath
26 | A: 
27 |   set "CLASSPATH=%CLASSPATH%;C:\path\to\extra.jar"
28 | 
29 | Q: log4j config
30 | A:
31 |   set "_JAVA_OPTIONS=-Dlog4j.configuration=file:///C:/keep/log4j-trace-most-file.properties "
32 | 
33 | 


--------------------------------------------------------------------------------
/prog/ejb/interceptor/nbproject/project.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <project xmlns="http://www.netbeans.org/ns/project/1">
 3 |     <type>org.netbeans.modules.j2ee.ejbjarproject</type>
 4 |     <configuration>
 5 |         <data xmlns="http://www.netbeans.org/ns/j2ee-ejbjarproject/3">
 6 |             <name>EJBModule1</name>
 7 |             <minimum-ant-version>1.6.5</minimum-ant-version>
 8 |             <source-roots>
 9 |                 <root id="src.dir" name="Source Packages"/>
10 |             </source-roots>
11 |             <test-roots>
12 |                 <root id="test.src.dir" name="Test Packages"/>
13 |             </test-roots>
14 |         </data>
15 |     </configuration>
16 | </project>
17 | 


--------------------------------------------------------------------------------
/prog/jdbc/ojdbc.txt:
--------------------------------------------------------------------------------
 1 | Q: cast TIMESTAMP to DATE
 2 | A: (ts+0), not TO_DATE(ts)
 3 | 
 4 | 
 5 | setTimestamp:
 6 | 
 7 | 1)
 8 | setTimestamp(int, TimeStamp) != setTimestamp(int, TimeStamp, (Calendar)null)
 9 | 
10 | 2)
11 | prepareStatement("select ? from dual")
12 | !=
13 | prepareStatement("select (?+0) from dual")
14 | 
15 | 
16 | prepareStatement("select dump(?) from dual");
17 | setTimestamp(1, ts);
18 | ->
19 | Typ=180 (internal TIMESTAMP)
20 | 
21 | prepareStatement("select dump(?+0) from dual");
22 | setTimestamp(1, ts);
23 | ->
24 | Typ=13 (DATE ?)
25 | 
26 | 3)
27 | date - date = java.math.BigDecimal
28 | timestamp - timestamp = oracle.sql.INTEVALDS
29 | 
30 | 
31 | jdbc:oracle:thin:user/pass@host:1521:SID
32 | 


--------------------------------------------------------------------------------
/prog/ffmpeg/scenes/cutscenes:
--------------------------------------------------------------------------------
 1 | #!/bin/bash
 2 | 
 3 | shopt -s nullglob
 4 | 
 5 | set -e
 6 | 
 7 | rm -rf segs/
 8 | mkdir -p segs
 9 | 
10 | foo() {
11 | s=${f%.txt}
12 | s2=${s%.avi}
13 | s=../vhs/$s
14 | s3=$(printf "%03d" $i)
15 | ffmpeg -hide_banner -i "$s" $ssarg $targ -c copy "segs/$s2-${s3}.mkv"
16 | }
17 | 
18 | IFS=" :="
19 | for f in vhs.??.avi.txt; do
20 |   i=0
21 |   ss=0.0
22 |   ssarg=
23 |   while true; do
24 |     if read -r x frame x pts x pts_time && read -r x scene_score; then
25 |       
26 |       targ="-t $(awk "BEGIN {print $pts_time-$ss}")"
27 |       foo
28 |       ss=$pts_time
29 |       ssarg="-ss $pts_time"
30 |     else
31 |       targ=
32 |       foo
33 |       break
34 |     fi
35 |     i=$((i+1))
36 |   done<"$f"
37 | done
38 | 
39 | 


--------------------------------------------------------------------------------
/prog/vbscript/vbscript-faq.txt:
--------------------------------------------------------------------------------
 1 | Q: Class is not licensed for use
 2 | A: 
 3 |   For scripts the Design-time licensing needed
 4 |     https://docs.microsoft.com/en-us/previous-versions/windows/internet-explorer/ie-developer/platform-apis/aa751973(v=vs.85)
 5 |   This license is included in Visual Studio 6 component "ActiveX"
 6 | 
 7 |   http://computer-programming-forum.com/61-wsh/899cc21a80ea5189.htm
 8 | 
 9 | 
10 | Q: ?
11 | A: 
12 |   VBScript has only limited capability of working with byte arrays. The VarType function does return 8209, which indicates:
13 |   vbArray 8192 Array
14 |   vbByte 17 Byte subtype,
15 |   but you cannot use VBScript's array syntax to access individual elements of the array.
16 | 
17 |   Conversion can be made with adodb.stream
18 | 


--------------------------------------------------------------------------------
/prog/soapui/soapui-faq.txt:
--------------------------------------------------------------------------------
 1 | Q: request body missing on Raw tab
 2 | A: File -> Preferences -> UI Settings -> Size of Raw Request Message to Show
 3 |   multiply by 10
 4 | 
 5 | Q: Encode Request parameter as JSON
 6 | A: 
 7 |   ${= groovy.json.StringEscapeUtils.escapeJavaScript( testStep.properties["DependenciesJsonString"].value ) }
 8 | 
 9 |   Do not use the following:
10 |   ${= groovy.json.StringEscapeUtils.escapeJavaScript( context.expand('${DependenciesJsonString}' )) }
11 |   because the template parser will expand it before passing to context.expand()
12 | 
13 |   Do not use the following:
14 |   ${= groovy.json.StringEscapeUtils.escapeJavaScript( context.expand('$' + '{DependenciesJsonString}' )) }
15 |   because the first encountered right curly brace } cuts the rest of the scriptlet
16 |   You can use "\u007D", but it makes the code unreadable
17 |  


--------------------------------------------------------------------------------
/prog/imagemagick/imagemagick-faq.txt:
--------------------------------------------------------------------------------
 1 | Q: convert an image into a blank placeholder image with some text
 2 | A: 
 3 | 
 4 | find . -name "*.jpg" -o -name "*.png" -o -name "*.gif" | while read src; do
 5 |   #src=437254_1_En_BookFrontmatter_Figb_HTML.jpg
 6 |   #dst=output.io.${src##*.}
 7 |   dst="../output/${src}"
 8 |   
 9 |   im-identify -format "%w %h" "${src}" | {
10 |     IFS=$IFS$'\r'
11 |     read x y dummy
12 |     if [ 100 -le "${x:?}" -a 100 -le "${y:?}" ]; then
13 |   mkdir -p "${dst%/*}"
14 |   im-convert -strip -shave 15x15 -fill "#FF7F7F" -draw "color 0,0 reset" \
15 |             -gravity south \
16 |             -stroke '#000C' -strokewidth 2 -annotate 0 "${x}x${y}" \
17 |             -stroke  none   -fill white    -annotate 0 "${x}x${y}" \
18 |   -bordercolor black -border 5x5 -bordercolor white  -border 5x5 -bordercolor black -border 5x5 "${src}" "${dst}"
19 |     fi
20 |   }
21 | done
22 | 


--------------------------------------------------------------------------------
/unix/linux/rhel/7.x/glusterfs.txt:
--------------------------------------------------------------------------------
 1 | # !!! glusterfs too slow for WAN !!!
 2 | 
 3 | iptables -I INPUT -s 10.8.1.33 -j ACCEPT
 4 | service iptables save
 5 | 
 6 | yum install centos-release-gluster
 7 | yum install glusterfs-server
 8 | yum install glusterfs-fuse
 9 | systemctl start glusterd.service
10 | systemctl status glusterd.service
11 | systemctl enable glusterd.service
12 | 
13 | gluster peer probe glusterfs1
14 | gluster peer status
15 | # State: Peer in Cluster (Connected)
16 | 
17 | gluster volume create gv0 glusterfs2:/exports/okvmh1bak/brick1/gv0
18 | gluster volume tier gv0 attach glusterfs1:/media/lv_fm/brick1/gv0
19 | gluster volume start gv0
20 | gluster volume status
21 | 
22 | mount -t glusterfs glusterfs2:/gv0 /mnt
23 | umount /mnt
24 | 
25 | 
26 | >>/etc/fstab echo 'glusterfs1:/gv0   /var/cache/fm   glusterfs   defaults,_netdev,noauto,x-systemd.automount 0 0'
27 | mount /var/cache/fm
28 | 


--------------------------------------------------------------------------------
/prog/documentum/xcpdesigner.ini.txt:
--------------------------------------------------------------------------------
 1 | -startup
 2 | plugins/org.eclipse.equinox.launcher_1.3.0.v20140415-2008.jar
 3 | --launcher.library
 4 | plugins/org.eclipse.equinox.launcher.win32.win32.x86_64_1.1.200.v20150204-1316
 5 | -data
 6 | @noDefault
 7 | -vmargs
 8 | -Xms1024m
 9 | -Xmx2048m
10 | -Dorg.eclipse.equinox.http.jetty.http.port=2910
11 | -Dorg.eclipse.update.reconcile=false
12 | -Dequinox.ds.print=true
13 | -Dfile.encoding=UTF8
14 | -Dsun.java2d.d3d=false
15 | -Dxcp.application.url.host=
16 | -Dxcp.application.url.port=8000
17 | -Dxcp.application.url.parameters=reload
18 | -Dxcp.theme.compiler.location=C:/Sencha/Cmd/6.1.3.42
19 | -Dbuilder.maven.repo=./maven/designer
20 | -Dwebby.jvmArguments=-XX:PermSize=192m -XX:MaxPermSize=192m -Xms512m -Xmx832m -Xrunjdwp:transport=dt_socket,address=0.0.0.0:8787,server=y,suspend=n -Dlog4j.configuration=file:///C:/log4j-trace-most-con-and-file.properties
21 | 


--------------------------------------------------------------------------------
/prog/java/SneakyThrow.java:
--------------------------------------------------------------------------------
 1 | import java.io.IOException;
 2 | 
 3 | public class SneakyThrow
 4 | {
 5 | 
 6 |     public static void main( String[] args )
 7 |     {
 8 |         sneakyThrow( new IOException("nope") );
 9 |     }
10 | 
11 |     /**
12 |      * Throw even checked exceptions without being required
13 |      * to declare them or catch them. Suggested idiom:
14 |      * throw sneakyThrow( some exception );
15 |      */
16 |     public static RuntimeException sneakyThrow(Throwable t) {
17 |         // http://www.mail-archive.com/javaposse@googlegroups.com/msg05984.html
18 |         if (t == null)
19 |             throw new NullPointerException();
20 |         throw SneakyThrow.<RuntimeException>sneakyThrow0(t);
21 |     }
22 | 
23 |     @SuppressWarnings("unchecked")
24 |     private static <T extends Throwable> RuntimeException sneakyThrow0(Throwable t) throws T {
25 |         throw (T) t;
26 |     }
27 | }
28 | 


--------------------------------------------------------------------------------
/prog/ejb/interceptor/src/conf/ejb-jar.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <ejb-jar xmlns="http://xmlns.jcp.org/xml/ns/javaee"
 3 |         version="3.2"
 4 |         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 5 |         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/ejb-jar_3_2.xsd">
 6 | 
 7 |        <interceptors>
 8 |            <interceptor>
 9 |              <interceptor-class>myapp.InterceptorBean</interceptor-class>
10 |            </interceptor>
11 |        </interceptors>
12 | 
13 |     <assembly-descriptor>
14 |         <interceptor-binding>
15 |             <ejb-name>TimerBean</ejb-name>
16 |             <interceptor-class>myapp.InterceptorBean</interceptor-class>
17 |             <!--
18 |             <method>
19 |                 <method-name>someMethod</method-name>
20 |             </method>
21 |             -->
22 |         </interceptor-binding>
23 |     </assembly-descriptor>
24 | 
25 | </ejb-jar>
26 | 


--------------------------------------------------------------------------------
/prog/mendix/gulp-faq.txt:
--------------------------------------------------------------------------------
 1 | Installation:
 2 | Windows 7: node-v12.20.1-x64.msi
 3 | Windows 10: node-v14.15.4-x64.msi
 4 | 
 5 | https://github.com/mendix/ux-theming
 6 | download latest Gulp.zip from Releases (tags)
 7 | 
 8 | Extract Gulp.zip to project folder
 9 | 
10 | cd C:\project\folder
11 | npm install
12 | 
13 | Add to svn:ignore:
14 |   Gulpfile.js
15 |   node_modules
16 |   package.json
17 |   package-lock.json
18 | 
19 | 
20 | npm run dev
21 | 
22 | 
23 | Q: Error: ENAMETOOLONG: name too long, stat 'C:\Users\il\Documents\Mendix\ExpensesApp-main\theme\styles\sass\theme\styles\sass\theme...
24 | A: 
25 |   
26 |   Gulpfile.js:
27 |   
28 |    // What is the name of the style folder in this theme folder?
29 |   -var sourceStyleFolder = 'theme/styles';
30 |   +var sourceStyleFolder = 'theme/styles/web';
31 |    
32 |    // What is the name of the style folder in the deployment folder?
33 |   -var deploymentStyleFolder = 'styles';
34 |   +var deploymentStyleFolder = 'styles/web';
35 | 


--------------------------------------------------------------------------------
/prog/ejb/interceptor/src/java/myapp/InterceptorBean.java:
--------------------------------------------------------------------------------
 1 | 
 2 | package myapp;
 3 | 
 4 | import java.util.logging.Level;
 5 | import java.util.logging.Logger;
 6 | import javax.interceptor.AroundInvoke;
 7 | import javax.interceptor.AroundTimeout;
 8 | import javax.interceptor.Interceptor;
 9 | import javax.interceptor.InvocationContext;
10 | 
11 | @Interceptor
12 | public class InterceptorBean {
13 | 
14 |     @AroundInvoke
15 |     public Object invokeInterceptorMethod(InvocationContext ctx) throws Exception {
16 |         LOGGER.log(Level.SEVERE, "invokeInterceptorMethod {0}", ctx.getMethod());
17 |         return ctx.proceed();
18 |     }
19 |     
20 |     @AroundTimeout
21 |     public Object timeoutInterceptorMethod(InvocationContext ctx) throws Exception {
22 |         LOGGER.log(Level.SEVERE, "timeoutInterceptorMethod {0}", ctx.getMethod());
23 |         return ctx.proceed();
24 |     }
25 |     
26 |     private static final Logger LOGGER = Logger.getLogger(InterceptorBean.class.getName());
27 | }
28 | 


--------------------------------------------------------------------------------
/prog/java/webapp/webapp-faq.txt:
--------------------------------------------------------------------------------
 1 | Q: wrap request
 2 | A:
 3 |   https://github.com/basinilya/_dump/blob/ssl-offload-filter/src/com/common/offload/OffloadFilter.java
 4 | 
 5 | Q: serve static file from your own servlet
 6 | A: 
 7 |     getServletContext().getNamedDispatcher("default").forward(request, response);
 8 | 
 9 |     http://stackoverflow.com/a/837020/447503
10 | 
11 | 
12 | 
13 | Q: java servlet forwarded request original
14 | A:
15 |     http://stackoverflow.com/a/11387378/447503
16 |     // RequestDispatcher.FORWARD_SERVLET_PATH = "javax.servlet.forward.request_uri";
17 |     request.getAttribute("javax.servlet.forward.request_uri")
18 | 
19 | 
20 | Q: mvn jety example
21 | A: 
22 | <plugin>
23 | <groupId>org.eclipse.jetty</groupId>
24 | <artifactId>jetty-maven-plugin</artifactId>
25 | <version>9.2.11.v20150529</version>
26 | <configuration>
27 | 	<scanIntervalSeconds>10</scanIntervalSeconds>
28 | 	<webApp>
29 | 	     <contextPath>/abc</contextPath>
30 | 	</webApp>
31 | </configuration>
32 |   </plugin>


--------------------------------------------------------------------------------
/prog/perl/throttle.pl:
--------------------------------------------------------------------------------
 1 | #!/usr/bin/perl
 2 | use strict;
 3 | use bignum;
 4 | use Getopt::Long;
 5 | 
 6 | my $ratelim = 1/0; # "use bignum" makes division-by-zero result Inf
 7 | 
 8 | sub getopts {
 9 |     GetOptions ("rate-limit=s" => \$ratelim)
10 |         or die("Error in command line arguments\n");
11 | }
12 | 
13 | my $bufsz = 8;
14 | my @SAVE_ARGV = @ARGV;
15 | getopts;
16 | @ARGV = @SAVE_ARGV;
17 | 
18 | {
19 | binmode STDIN;
20 | binmode STDOUT;
21 | local $| = 1; # auto flush
22 | local $/ = \$bufsz;
23 | 
24 | my $totalb = 0;
25 | my $tm_start = time();
26 | my $tm_now;
27 | my $elapsed;
28 | my $bps;
29 | 
30 | # read() blocks, but sysread() returns as soon as some bytes available
31 | while (sysread(STDIN,$_,$bufsz)) {
32 | $totalb += length();
33 | print();
34 | while(1) {
35 | $tm_now = time();
36 | $elapsed = $tm_now - $tm_start;
37 | $bps = $totalb / $elapsed; # "use bignum" makes division-by-zero result Inf
38 | #print $bps . "\n";
39 | last if ($bps <= $ratelim);
40 | sleep(1);
41 | }
42 | }
43 | }
44 | 


--------------------------------------------------------------------------------
/prog/documentum/xcp-edit-form.txt:
--------------------------------------------------------------------------------
 1 | Always create a fragment from an Edit template
 2 | You'll get an undeletable "id" and "model" inputs.
 3 | 
 4 | In the .fragment xml this will add an extra templateScope="INSTANCE" attribute to the root element.
 5 | 
 6 | 
 7 | This fragment CAN be used to create new, but you need to pass (undefined) to the "id" input by using the expression:
 8 | {''}[-1]
 9 | Just passing an empty string won't work.
10 | 
11 | 
12 | Also, a model output can be added to the same fragment, you need to add an output named "model".
13 | 
14 | Its default value must be the artifact, not Inputs.model
15 | 
16 | Close and reopen
17 | 
18 | Now you can expand the output model.
19 | 
20 | Set each property to the value of an input widget
21 | 
22 | 
23 | Do not use the artifact "id" property to distinguish new and edit.
24 | When working with a new instance the "id" property of the model is populated anyway.
25 | 
26 | If the table is not empty, then the first found object id is used. If it's empty a dummy value is used.
27 | 
28 | To distinguish new and edit use Inputs.id or Inputs.model.id or both
29 | 
30 | 


--------------------------------------------------------------------------------
/prog/jetty/jetty-faq.txt:
--------------------------------------------------------------------------------
 1 | Q: stop/undeploy webapp without killing process
 2 | A: connect with JConsole, Mbeans, org.eclipse...servlethandler/0/.../stop()
 3 | 
 4 | Q: mvn jetty:run with debug
 5 | A: mvnDebug jetty:run
 6 | 
 7 | Q: mvn jetty:run +JMX 
 8 | A: 
 9 |   Download jetty distribution of the same version as jetty plugin
10 |   extract jetty-jmx.xml and put into src/etc/
11 | 
12 |   			<plugin>
13 |   				<groupId>org.eclipse.jetty</groupId>
14 |   				<artifactId>jetty-maven-plugin</artifactId>
15 |   				<version>9.4.32.v20200930</version>
16 |   				  <configuration>
17 |   					<scanintervalseconds>10</scanintervalseconds>
18 |   					<jettyXml>src/etc/jetty-jmx.xml</jettyXml>
19 |   				  </configuration>
20 |   			</plugin>
21 | 
22 | Q: Jetty CLI
23 | A:
24 |   https://jetty.org/download.html
25 |   https://repo1.maven.org/maven2/org/eclipse/jetty/jetty-home/12.1.3/jetty-home-12.1.3.zip
26 |   
27 |   mkdir C:\progs\jetty-base-12.1.3\
28 |   pushd C:\progs\jetty-base-12.1.3\
29 |   java -jar C:\progs\jetty-home-12.1.3\start.jar --add-modules=server,http
30 |   java -jar C:\progs\jetty-home-12.1.3\start.jar
31 | 
32 | 


--------------------------------------------------------------------------------
/prog/firefox/firefox-faq.txt:
--------------------------------------------------------------------------------
 1 | Q: "firefox" "about:config" "f12" "network" don't clear 
 2 | A:
 3 |     devtools.netmonitor.persistlog
 4 |     devtools.webconsole.persistlog
 5 | 
 6 | Q: custom URL handler
 7 | A: 
 8 | Windows:
 9 | 
10 |     REGEDIT4
11 |     [HKEY_CURRENT_USER\Software\Classes\unkproto]
12 |     @="URL:Zoom Launcher"
13 |     "URL Protocol"=""
14 |     "UseOriginalUrlEncoding"=dword:00000001
15 |     [HKEY_CURRENT_USER\Software\Classes\unkproto\DefaultIcon]
16 |     @="\"C:\\Users\\basin\\AppData\\Roaming\\Zoom\\bin\\Zoom.exe\",1"
17 |     [HKEY_CURRENT_USER\Software\Classes\unkproto\shell]
18 |     [HKEY_CURRENT_USER\Software\Classes\unkproto\shell\open]
19 |     [HKEY_CURRENT_USER\Software\Classes\unkproto\shell\open\command]
20 |     @="\"C:\\Users\\basin\\AppData\\Roaming\\Zoom\\bin\\Zoom.exe\" \"--url=%1\""
21 | 
22 | 
23 | Linux: see linux-faq.txt
24 | 
25 | Firefox only
26 | 
27 | FF 52- 
28 | https://support.zoom.us/hc/en-us/requests/583798?flash_digest=6b403a5e4a19952ee0906f1f5a10160194fb1a80
29 | mimeTypes.rdf
30 |  
31 | FF 60+
32 | ~/.mozilla/firefox/et26jtky.default/handlers.json
33 | "zoommtg":{"action":2,"handlers":[{"name":"zoom","path":"/usr/bin/zoom"}]},
34 | 


--------------------------------------------------------------------------------
/unix/linux/btrfs-faq.txt:
--------------------------------------------------------------------------------
 1 | Q: restore an incremental backup from a backups server
 2 | A:
 3 | - There's already "/snapdir/last-good" readonly snapshot on the backups server (name may differ).
 4 |   If there's no, there's nothing to restore
 5 | 
 6 | - There's already "/snapdir/current-bad" readonly snapshot on the victim server created by daily backup program
 7 |   If there's no, the only option is to "btrfs send" the whole subvolume from the backups server
 8 | 
 9 | - On the backups server launch:
10 |     btrfs send -p "/snapdir/current-bad" "/snapdir/last-good" | ssh root@victim "receiver command..."
11 | 
12 | - On the victim server the receiver command will be: btrfs receive "/snapdir"
13 |   The readonly snapshot "/snapdir/last-good" is created
14 | 
15 | - Take a read-write snapshot of "/snapdir/last-good"
16 |   btrfs subvol snapshot "/snapdir/last-good" "/snapdir/last-good-rw"
17 | 
18 | - Boot into "/snapdir/last-good-rw"
19 | 
20 | 
21 | Q: Boot into subvol
22 | A: 
23 | - option 1: btrfs subvolume set-default
24 |     After remount or reboot the previous default will be available at: ???
25 | - option 2: 
26 |   grub.cfg: rootflags=subvol=...
27 |   /etc/fstab subvol=...
28 | 
29 | 


--------------------------------------------------------------------------------
/prog/groovy/groovy-faq.txt:
--------------------------------------------------------------------------------
 1 | Q: call a Groovy method from java code, e.g. java.net.URL.getText()
 2 | A: 
 3 |   MetaClass mc = InvokerHelper.getMetaClass(obj.getClass());
 4 |   MetaMethod method = mc.getMetaMethod(name, paramTypes);
 5 |   method.invoke(obj, params);
 6 | 
 7 | Q: Add implicit import to a script
 8 | A:
 9 |   final CompilerConfiguration cc = new CompilerConfiguration();
10 |   final ImportCustomizer importCustomizer = new ImportCustomizer();
11 |   importCustomizer.addImport("Mail2", Mail.class.getName());
12 |   // import static com.mrhaki.blog.Type.*
13 |   importCustomizer.addStaticStars("com.mrhaki.blog.Type");
14 |   // import com.mrhaki.blog.Post as Article
15 |   importCustomizer.addImport("Article", "com.mrhaki.blog.Post");
16 |   cc.addCompilationCustomizers(importCustomizer);
17 |   // can now use cc to instantiate GroovyShell or GroovyClassLoader
18 |   
19 | Q: ConfigSlurper with custom CompilerConfiguration
20 | A: 
21 |   String scriptText;
22 |   CompilerConfiguration cc;
23 |   ConfigSlurper configSlurper;
24 |   final GroovyClassLoader gl =
25 |       new GroovyClassLoader(Thread.currentThread().getContextClassLoader(), cc);
26 |   Script script = (Script) gl.parseClass(scriptText).newInstance();
27 |   configSlurper.parse(script, locationUrl);
28 | 


--------------------------------------------------------------------------------
/prog/turnserver/turnserver-faq.txt:
--------------------------------------------------------------------------------
 1 | The package can be named coturn (epel) or turnserver
 2 | 
 3 | You may also want to install coturn-utils (turnserver-utils)
 4 | and coturn-client-libs (turnserver-client-libs)
 5 | The header files are probably not packaged.
 6 | 
 7 | Warning: the client part is poorly coded. Better use libnice based software.
 8 | 
 9 | 
10 | 
11 | Depending on the packager the server will log to syslog or to a file.
12 | 
13 | turnutils_stunclient 172.31.1.100
14 | 
15 | 
16 | -c explicit/config/file
17 | --no-auth
18 | --stun-only
19 | --cert
20 | --pkey
21 | --verbose
22 | --Verbose
23 | no-stdout-log
24 | syslog
25 | 
26 | /usr/share/turnserver/etc/turnserver.conf
27 | /etc/turnserver/turnserver.conf
28 | /usr/lib/systemd/system/turnserver.service
29 | 
30 | 
31 | Q: 
32 | A:
33 |   [il@reallin ~]$ ~/builds/coturn/bin/turnserver -c ~/builds/turnserver-debug.conf 
34 |   [il@reallin ~]$ cat ~/builds/turnserver-debug.conf 
35 |   verbose
36 |   #no-stdout-log
37 |   #syslog
38 |   stun-only
39 |   pidfile /dev/null
40 |   log-file -
41 | 
42 | 
43 | Q: ERROR: main: Cannot configure any meaningful IP listener address
44 | A:
45 | /etc/systemd/system/coturn.service.d/custom.conf
46 | [Service]
47 | RestrictAddressFamilies=
48 | #RestrictAddressFamilies=AF_INET AF_INET6 AF_UNIX
49 | 


--------------------------------------------------------------------------------
/prog/gcc/gcc-faq.txt:
--------------------------------------------------------------------------------
 1 | ********************************************************************************
 2 | ********************************************************************************
 3 | ********************************************************************************
 4 | Q: preserve preprocessor directives as comments with `gcc -E` or -save-temps
 5 | A: -Wp,-dD
 6 | ********************************************************************************
 7 | Q: Unrecognized compiler protocol for variable argument lists
 8 | A: don't use -I/usr/include , remove it from Makefile
 9 | ********************************************************************************
10 | Q: get value (expand) c macro
11 | A:
12 | # usage: fn_expand_c_macro MACRO includes...
13 | # Example:
14 | # fn_expand_c_macro SIGUSR1 signal.h
15 | fn_expand_c_macro() {
16 |   set dummy `
17 |   (
18 |     macro="$1"
19 |     shift
20 |     for i in "$@"; do
21 |       echo "#include <$i>"
22 |     done
23 |     echo "$macro" togreptogreptogrep
24 |   ) | gcc -E - | grep togreptogreptogrep`
25 |   echo "$2"
26 | }
27 | ********************************************************************************
28 | Q: list gcc include directories
29 | A: LANG=C gcc -v -E - < /dev/null 2>&1 | sed -n -e '/> search starts here/!b;:m1;n;/End of search list/b;p;b m1;'
30 | 
31 | 


--------------------------------------------------------------------------------
/prog/java/PrintClassloaders.java:
--------------------------------------------------------------------------------
 1 | // printclasspath
 2 | 
 3 | package org.foo;
 4 | 
 5 | import java.io.PrintWriter;
 6 | import java.net.URLClassLoader;
 7 | import java.util.Arrays;
 8 | 
 9 | public class PrintClassloaders {
10 |     
11 |     private static void log(final PrintWriter pw, final Object _o) {
12 |         final String o = "" + _o;
13 |         pw.println(o);
14 |     }
15 |     
16 |     public static void printClassloader(final PrintWriter pw, final Class clazz) throws Exception {
17 |         log(pw, "classloader hierarchy for " + clazz);
18 |         log(pw, "location: " + clazz.getProtectionDomain().getCodeSource().getLocation());
19 |         printClassloader0(pw, clazz.getClassLoader());
20 |         log(pw, "");
21 |         log(pw, "");
22 |     }
23 |     
24 |     private static void printClassloader0(final PrintWriter pw, final ClassLoader cl)
25 |             throws Exception {
26 |         log(pw, cl);
27 |         if (cl instanceof URLClassLoader) {
28 |             final URLClassLoader ucl = (URLClassLoader) cl;
29 |             log(pw, Arrays.asList(ucl.getURLs()));
30 |         } else {
31 |             //
32 |         }
33 |         final ClassLoader parent = cl.getParent();
34 |         if (parent != null && parent != cl) {
35 |             printClassloader0(pw, parent);
36 |         }
37 |     }
38 | }
39 | 


--------------------------------------------------------------------------------
/prog/extjs/extjs-faq.txt:
--------------------------------------------------------------------------------
 1 | Q: class name instead of type alias in container config:
 2 |     Ext.create('Ext.Panel', {
 3 |         items: [
 4 |             {
 5 |                 // xtype: 'form'
 6 |                 ???: 'Ext.form.Panel'
 7 | 
 8 | A:
 9 | 
10 | 
11 | 
12 | Q: selector for component of type
13 | A: just the type name, no equal sign or "xtype="
14 |   Ex: grid.getDockedItems('pagingtoolbar')[0].setHidden(true)
15 | 
16 | 
17 | Q: add a property to existing class
18 | A:
19 |     Ext.define(null,{
20 |       override: "xcp_folderlist_0",
21 |       config : {
22 |         // this will generate getter/setter in .prototype
23 |         xcpId: null
24 |       },
25 |       constructor: function() {
26 |         this.callParent(arguments);
27 |         console.log(this.$className + " is instantiated");
28 |       },
29 |       applyXcpId: function(x) {
30 |         // this optional function allows check/modify value being set
31 |         console.log("setting xcpId" + x);
32 |         return x;
33 |       }
34 |     }, function() {
35 |       var clazz = this;
36 |       console.log(clazz.$className + " is overriden");
37 |       // do not pass getter/setter directly to allow override them.
38 |       Object.defineProperty(clazz.prototype, "xcpId", {configurable: true, get: function() { return this.getXcpId(); }, set: function(x) { this.setXcpId(x); } });
39 |     });
40 | 


--------------------------------------------------------------------------------
/unix/linux/rhel/7.x/aaa.txt:
--------------------------------------------------------------------------------
 1 | mkdir -p /etc/systemd/system/network-online.target.wants
 2 | ln -sf /usr/lib/systemd/system/sshd.service /etc/systemd/system/network-online.target.wants/
 3 | chkconfig --level 12345 network on
 4 | ln -sf /usr/lib/systemd/system/NetworkManager.service /etc/systemd/system/network-online.target.wants/
 5 | systemctl daemon-reload
 6 | 
 7 | 
 8 | 
 9 | mkdir -p /etc/systemd/system/rescue.target.wants
10 | ln -sf /usr/lib/systemd/system/sshd.service /etc/systemd/system/rescue.target.wants/
11 | systemctl daemon-reload
12 | 
13 | systemctl isolate rescue.target
14 | 
15 | 
16 | rescue.target
17 | 
18 | set-default
19 | 
20 | 
21 | 
22 | 
23 | 
24 | Q: generate image for current running kernel
25 | A: dracut -f
26 | 
27 | Q: generate image for another kernel
28 | A: dracut -f /boot/initramfs-3.10.0-327.18.2.el7.x86_64.img 3.10.0-327.18.2.el7.x86_64
29 | 
30 | 
31 | Q: generate rescue image for current running kernel
32 | A:
33 | rm -f /boot/vmlinuz-0-rescue-* /boot/initramfs-0-rescue-*.img
34 | /etc/kernel/postinst.d/51-dracut-rescue-postinst.sh $(uname -r) /boot/vmlinuz-$(uname -r)
35 | (On 6.x rescue from DVD is the only option)
36 | 
37 | 
38 | Q: install xorg and desktop environment
39 | A: 
40 |   yum install -y mesa-libGLES mesa-libEGL mesa-libGL
41 |   #yum erase nvidia-x11-drv-340xx
42 |   yum -y groups install "GNOME Desktop"
43 |   yum -y install gnome-shell-extension-top-icons
44 | 
45 | 
46 |   systemctl set-default graphical.target 


--------------------------------------------------------------------------------
/oracle/sqldeveloper-faq.txt:
--------------------------------------------------------------------------------
 1 | Q: import csv
 2 | A:
 3 |   don't try to import CSV with Oracle SQL Developer 20.x or below:
 4 |   it treats line breaks in values as record separators despite
 5 |   the quoting.
 6 | 
 7 | Q: where is configuration?
 8 | A: c:\Users\basin\AppData\Roaming\SQL Developer\
 9 | 
10 | Q: File open dialog freeze
11 | A: Check OpenedFilesHistory* in ide.properties
12 | 
13 | Q: default max result rows
14 | A: 
15 |   Tools -> Preferences -> Database -> Advanced -> Sql Array Fetch Size (Max. 500)
16 |   %APPDATA%\SQL Developer\system3.2.20.09.87\o.sqldeveloper.11.2.0.9.87\product-preferences.xml
17 | 
18 | 
19 | Q: debug stored procedure: ORA-24247: network access denied by access control list (ACL)
20 | A: 
21 | Oracle is disallowed to make a TCP connection to client's host
22 | workaround: use DBMS_DEBUG instead of DBMS_DEBUG_JDWP in debugger settings (supported by SQL Developer 20+)
23 | fix: 
24 | 
25 |     BEGIN
26 |      DBMS_NETWORK_ACL_ADMIN.APPEND_HOST_ACE
27 |      (
28 |      host => 'subdomain.acme.com',
29 |      lower_port => 10000,
30 |      upper_port => 65535,
31 |      ace => xs$ace_type(privilege_list => xs$name_list('jdwp'),
32 |      principal_name => 'myusername',
33 |      principal_type => xs_acl.ptype_db)
34 |      );
35 |     END;
36 |     /
37 |   select * FROM dba_network_acls;
38 |   
39 |   see also
40 |   DBMS_NETWORK_ACL_ADMIN.CHECK_PRIVILEGE_ACLID
41 |   DBMS_NETWORK_ACL_UTILITY.CONTAINS_HOST
42 | 


--------------------------------------------------------------------------------
/prog/java/jpa/eclipselink-jpa-bugs.txt:
--------------------------------------------------------------------------------
 1 | 2.6.3:
 2 | =========================================
 3 | quoted identifiers setting broken
 4 | =========================================
 5 | @JoinColumns(..., foreignKey = @ForeignKey(ConstraintMode.NO_CONSTRAINT))
 6 | applied to whole table. No constraints created at all
 7 | 
 8 | =========================================
 9 | @BatchFetch(size=20)
10 | java.lang.NullPointerException: Name is null
11 | 	at java.lang.Enum.valueOf(Enum.java:236)
12 | 	at org.eclipse.persistence.annotations.BatchFetchType.valueOf(BatchFetchType.java:1)
13 | 
14 | Workaround:
15 | @BatchFetch(size=20, value=BatchFetchType.XXX)
16 | 
17 | https://www.eclipse.org/forums/index.php/t/1091566/
18 | 
19 | =========================================
20 | "size" ignored in @BatchFetch with BatchFetchType.IN
21 | 
22 | From "size" javadoc:
23 | 
24 |     This is only used for IN type batch reading and defines the number of keys used in each IN clause.
25 | 
26 | Form used: @BatchFetch(size=3, value=BatchFetchType.IN)
27 | 
28 | Expected:
29 | 
30 |     SELECT IDSG, NAME, NUMBER FROM gnss_handsets WHERE (IDSG IN (?,?,?))
31 |       bind => [+ 49 00000 0 00 01, + 49 00000 0 00 02, + 49 00000 0 00 03]
32 |     SELECT IDSG, NAME, NUMBER FROM gnss_handsets WHERE (IDSG IN (?,?,?))
33 |       bind => [+ 49 00000 0 00 04, + 49 00000 0 00 05, + 49 00000 0 00 05]
34 |     ...
35 | 
36 | Actual:
37 | 
38 |     [190209 10:57:04.101] FINE: "SELECT IDSG, NAME, NUMBER FROM gnss_handsets WHERE (IDSG IN (?,?,?,?,?,?,?,?,?,?,?...
39 |       bind => [+ 49 00000 0 00 01, + 49 00000 0 00 02, + 49 00000 0 00 03, + 49 00000 0 00 04, + 49 00000 0 00 05,...
40 | =========================================
41 | 


--------------------------------------------------------------------------------
/prog/haproxy/haproxy-faq.txt:
--------------------------------------------------------------------------------
 1 | Q: No variables in 1.5
 2 | A: use capture (Note that you cannot capture a header you just added)
 3 | 
 4 | Q: ProxyPassReverse
 5 | A:
 6 | relative
 7 |     backend xxx
 8 |         # ProxyPassReverse
 9 |         http-response replace-value Location (https?://domain.com(:[0-9]+)?)?(/.*) \3
10 | 
11 | absolute:
12 |     1.5:
13 |         frontend xxx
14 |             capture request header Host len 32 # first capture statement has capture.req.hdr id 0
15 |         
16 |         backend xxx
17 |             # ProxyPassReverse
18 |             http-response replace-value Location (https?://domain.com(:[0-9]+)?)?(/.*) __proto__%[capture.req.hdr(0)]\3
19 |             rspirep ^Location:\ __proto__(.*) Location:\ https://\1 if { ssl_fc }
20 |             rspirep ^Location:\ __proto__(.*) Location:\ http://\1 unless { ssl_fc }
21 | 
22 | Q: advanced nosecure cookies
23 | A:
24 | 
25 |   frontend http-in
26 |       bind *:7998
27 |       mode http
28 |   
29 |       # Add '__Host-' prefix to XASSESSIONID and such in Cookie
30 |       http-request set-header Cookie %[req.hdr(Cookie),'regsub("(^|;\s*)(XASSESSIONID|SessionTimeZoneOffset|DeviceType|Profile)=","\1__Host-\2=","g")']
31 |   
32 |       default_backend servers
33 |   
34 |   backend servers
35 |       mode http
36 |   
37 |       server srv1 127.0.0.1:48080
38 |   
39 |       # Remove '__Host-' prefix from Set-Cookie: __Host-XASSESSIONID and such
40 |       http-response replace-header Set-Cookie '^__Host-((XASSESSIONID|SessionTimeZoneOffset|DeviceType|Profile)=.*)' '\1'
41 |   
42 |       # Remove 'Secure' flag from all Set-Cookie headers
43 |       http-response replace-header Set-Cookie '(.*);\s*Secure(;.*|$)' '\1\2'
44 | 


--------------------------------------------------------------------------------
/unix/armbian/owhttpd.txt:
--------------------------------------------------------------------------------
 1 | yum install mod_proxy_html
 2 | 
 3 | 
 4 | /etc/httpd/conf/web-80-443.conf
 5 | 
 6 |     <Location /owhttpd>
 7 |         ProxyPass http://smarthome:2121
 8 |         ProxyPassReverse /
 9 |     
10 |         ProxyHTMLEnable On
11 |         # ProxyHTMLEnable above replaces SetOutputFilter below
12 |         #SetOutputFilter proxy-html
13 |     
14 |         ProxyHTMLURLMap / /owhttpd/
15 |         # for the settings form action:
16 |         ProxyHTMLURLMap http://smarthome:2121 /owhttpd
17 |     </Location>
18 | 
19 | 
20 | The following file is usually missing in CentOS:
21 | /etc/httpd/conf.d/proxy-html.conf
22 | 
23 |     # Here's the declaration for W3C HTML 4.01 and XHTML 1.0
24 |     
25 |     ProxyHTMLLinks  a       href
26 |     ProxyHTMLLinks  area        href
27 |     ProxyHTMLLinks  link        href
28 |     ProxyHTMLLinks  img     src longdesc usemap
29 |     ProxyHTMLLinks  object      classid codebase data usemap
30 |     ProxyHTMLLinks  q       cite
31 |     ProxyHTMLLinks  blockquote  cite
32 |     ProxyHTMLLinks  ins     cite
33 |     ProxyHTMLLinks  del     cite
34 |     ProxyHTMLLinks  form        action
35 |     ProxyHTMLLinks  input       src usemap
36 |     ProxyHTMLLinks  head        profile
37 |     ProxyHTMLLinks  base        href
38 |     ProxyHTMLLinks  script      src for
39 |     
40 |     # To support scripting events (with ProxyHTMLExtended On),
41 |     # you'll need to declare them too.
42 |     
43 |     ProxyHTMLEvents onclick ondblclick onmousedown onmouseup \
44 |             onmouseover onmousemove onmouseout onkeypress \
45 |             onkeydown onkeyup onfocus onblur onload \
46 |             onunload onsubmit onreset onselect onchange
47 | 


--------------------------------------------------------------------------------
/prog/android/android-faq.txt:
--------------------------------------------------------------------------------
 1 | Q: `adb.exe devices` does not show any device, "Android Composite ADB Interface" is missing, "ADB Interface" is missing, the device is recognized as an MTP device, not a composite device 
 2 | A: go to Android setting, developer and disable "always prompt when connected" for ADB, replug.
 3 | 
 4 | Q: Generic USB driver cannot be installed for a Huawei Android device
 5 | A: Generic USB drivers don't work with Huawei. The suitable driver is distributed as part of HiSuite. Launch HiSuite, open Menu > Settings > General and click Install USB driver
 6 |   Alternatively, if HiSuite is not installed, open HiSuite_11.0.0.550_OVE.exe in 7zip and unpack the folder containing DriverSetup.exe and launch this executable
 7 | 
 8 | 
 9 | Q: test on desktop java
10 | A: roboletric
11 | 
12 | Q: resources
13 | A:
14 |     https://stackoverflow.com/questions/12203072/where-are-the-layouts-and-styles-defined-for-preferenceactivity
15 |     
16 |     https://android.googlesource.com/platform/frameworks/base/+/refs/heads/master/core/res/res/values/styles.xml
17 |         <style name="Preference.CheckBoxPreference">
18 |             <item name="widgetLayout">@layout/preference_widget_checkbox</item>
19 |         </style>
20 |     
21 |     https://android.googlesource.com/platform/frameworks/base/+/refs/heads/master/core/res/res/layout/preference_widget_checkbox.xml
22 |         <CheckBox xmlns:android="http://schemas.android.com/apk/res/android"
23 |             android:id="@+android:id/checkbox" 
24 |             android:layout_width="wrap_content"
25 |             android:layout_height="wrap_content"
26 |             android:focusable="false"
27 |             android:clickable="false"
28 |             android:background="@null" />
29 | 


--------------------------------------------------------------------------------
/prog/mendix/extract-glyphicons/cygwin-packages.txt:
--------------------------------------------------------------------------------
 1 | python36-lxml.lst.gz
 2 | 
 3 | python37-imaging.lst.gz
 4 | libtiff6.lst.gz
 5 | libxcb1.lst.gz
 6 | libwebpdemux2.lst.gz
 7 | libwebpmux3.lst.gz
 8 | libjbig2.lst.gz
 9 | libdeflate0.lst.gz
10 | libXdmcp6.lst.gz
11 | libXau6.lst.gz
12 | python37-olefile.lst.gz
13 | libwebp7.lst.gz
14 | liblcms2_2.lst.gz
15 | libjpeg8.lst.gz
16 | libimagequant0.lst.gz
17 | python37-lxml.lst.gz
18 | python37-html5lib.lst.gz
19 | python37-devel.lst.gz
20 | python37-pip.lst.gz
21 | python37-webencodings.lst.gz
22 | python37-six.lst.gz
23 | python37-setuptools.lst.gz
24 | python37-chardet.lst.gz
25 | python37-brotli.lst.gz
26 | python37-reportlab.lst.gz
27 | libfreetype6.lst.gz
28 | libpng16.lst.gz
29 | python37.lst.gz
30 | zlib-devel.lst.gz
31 | python38-brotli.lst.gz
32 | python38-lxml.lst.gz
33 | python38-html5lib.lst.gz
34 | python3-devel.lst.gz
35 | python38-webencodings.lst.gz
36 | python38-six.lst.gz
37 | python38-devel.lst.gz
38 | python38-chardet.lst.gz
39 | python36-devel.lst.gz
40 | libcrypt-devel.lst.gz
41 | python38-setuptools.lst.gz
42 | automake.lst.gz
43 | automake1.16.lst.gz
44 | automake1.10.lst.gz
45 | automake1.11.lst.gz
46 | automake1.12.lst.gz
47 | automake1.13.lst.gz
48 | automake1.14.lst.gz
49 | automake1.15.lst.gz
50 | automake1.9.lst.gz
51 | autoconf.lst.gz
52 | gcc-core.lst.gz
53 | make.lst.gz
54 | texinfo.lst.gz
55 | bison.lst.gz
56 | autoconf2.5.lst.gz
57 | autoconf2.1.lst.gz
58 | w32api-runtime.lst.gz
59 | libguile2.2_1.lst.gz
60 | libtool.lst.gz
61 | perl-Test-Harness.lst.gz
62 | perl-Unicode-Normalize.lst.gz
63 | m4.lst.gz
64 | windows-default-manifest.lst.gz
65 | w32api-headers.lst.gz
66 | libquadmath0.lst.gz
67 | libmpc3.lst.gz
68 | libisl22.lst.gz
69 | libgomp1.lst.gz
70 | libatomic1.lst.gz
71 | cygwin-devel.lst.gz
72 | libgc1.lst.gz
73 | libltdl7.lst.gz
74 | flex.lst.gz
75 | 


--------------------------------------------------------------------------------
/prog/java/pretty-xml.txt:
--------------------------------------------------------------------------------
 1 |     // from com.sun.org.apache.xml.internal.serializer.OutputPropertiesFactory
 2 |     private static final String S_KEY_INDENT_AMOUNT = "{http://xml.apache.org/xalan}indent-amount";
 3 | 
 4 |         {
 5 |             DOMImplementationLS domImplementationLS =
 6 |                     (DOMImplementationLS) existingDoc.getImplementation().getFeature("LS","3.0");
 7 |             if (domImplementationLS != null) {
 8 |                 LSOutput lsOutput = domImplementationLS.createLSOutput();
 9 |                 FileOutputStream fos = new FileOutputStream(outputFile);
10 |                 try {
11 |                     lsOutput.setByteStream(fos);
12 |                     LSSerializer lsSerializer = domImplementationLS.createLSSerializer();
13 |                     lsSerializer.write(existingDoc, lsOutput);
14 |                 } finally {
15 |                     try { fos.close(); } catch (Exception e) {}
16 |                 }
17 |             } else {
18 |                 // fallback
19 |                 Transformer transformer = TransformerFactory.newInstance().newTransformer();
20 | 
21 |             trySetProp(transformer, OutputKeys.INDENT, "yes");
22 |             trySetProp(transformer, S_KEY_INDENT_AMOUNT, "4");
23 | 
24 |                 StreamResult output = new StreamResult(outputFile);
25 |                 DOMSource input = new DOMSource(existingDoc);
26 |                 transformer.transform(input, output);
27 |             }
28 |         }
29 | 
30 |     private static void trySetProp(
31 |             final Transformer xmlTransformer,
32 |             final String name,
33 |             final String value) {
34 |         try {
35 |             xmlTransformer.setOutputProperty(name, value);
36 |         } catch (final IllegalArgumentException e) {
37 |             ignoreThrowable(e);
38 |         }
39 |     }
40 | 


--------------------------------------------------------------------------------
/prog/documentum/xcp-export-csv.txt:
--------------------------------------------------------------------------------
 1 | Вот, что я выучил сегодня по CSV Export
 2 | - оно экспортирует колонки грида, а не выводы датасорса
 3 | - оно может экспортировать больше строк, чем помещается в гриде
 4 | 
 5 | для этого надо заполнить "Number of Records", иначе он экспортнет текущую страницу грида
 6 | я так понимаю, что туда можно просто константу 2 миллиарда строк
 7 | - оно учитывает форматирование колонок грида. 
 8 | так что, если в колонке выбран html, то он экспортнёт html
 9 | - можно заполнить ввод "Selected Columns", и тогда он экспортнёт только выбранные колонки
10 | - Колонки, спрятанные в данный момент, не экспортируются
11 | 
12 | Это явно баг. Прятать их можно через ниспадающее меню в заголовке грида в браузере, либо программно черезз hide when
13 | 
14 | Вместо прятания можно выставить ширину колонки 10px, тогда она почти не видна.
15 | Если сделать меньше, то строки таблицы сползают
16 | При этом важно снять все флажки "Can be used to ..." sort/hidden/resized/repositioned
17 | - Первая строка CSV содержит тайтлы колонок
18 | - Несмотря на то, что в массиве  "Selected Columns" мы задаём ид. колонок, оно может экспортнуть другую колонку, если у неё такой же вывод дадасорса
19 | Это ещё один баг.
20 | Если две колонки имеют общий вывод датасорса, то ту, что надо экспортировать, надо расположить левее
21 | - Можно выбрать вызов data action в свойствах кнопки.
22 | 
23 | Тогда он не показывает диалог подтверждения
24 | 
25 | Если надо генерировать имя файла по нажатию на ту же кнопку, то нельзя это делать через промежуточный виджет, потому что ввод "File Name" не успевает обновиться.
26 | Надо публиковать кастомное событие с параметром, а ввод "File Name" брать из этого параметра.
27 | 
28 | Можно подписать экспорт на внешнее событие, но тогда он будет показывать диалог подтверждения  "Are you sure you want to download this file?", и это никак не отключить.


--------------------------------------------------------------------------------
/unix/openwrt/openwrt-virtualbox/openwrt-virtualbox-setup.txt:
--------------------------------------------------------------------------------
 1 | https://downloads.openwrt.org/releases/
 2 | 
 3 | version / targets / x86/64/
 4 | generic-squashfs-combined
 5 | 
 6 | https://downloads.openwrt.org/releases/22.03.0/targets/x86/64/
 7 | 
 8 | # unpack
 9 | >openwrt.img <openwrt-*-x86-64-generic-squashfs-combined.img.gz gzip -dc
10 | 
11 | # convert
12 | VBoxManage convertfromraw openwrt.img openwrt.vdi
13 | 
14 | Create new VM
15 | RAM 128Mb
16 | 
17 | controller: IDE
18 | 
19 | Important
20 | 
21 | eth0 LAN (ssh disabled by default)
22 | internal network
23 | 
24 | eth1 WAN
25 | NAT, forward 2022 -> 22, 2080 -> 80
26 | 
27 | 
28 | # allow access from WAN
29 | cat <<'EOF' >>/etc/config/firewall
30 | 
31 | config rule
32 |         option name 'Custom-Allow-SSH'
33 |         option src 'wan'
34 |         option proto 'tcp'
35 |         option dest_port '22'
36 |         option target 'ACCEPT'
37 | 
38 | config rule
39 |         option name 'Custom-Allow-Luci'
40 |         list proto 'tcp'
41 |         option src 'wan'
42 |         option dest_port '80'
43 |         option target 'ACCEPT'
44 | EOF
45 | 
46 | # restart firewall
47 | /etc/init.d/firewall restart
48 | 
49 | 
50 | # make sure no real DNS servers overlap with lan subnet
51 | uci set network.lan.ipaddr=192.168.2.1
52 | /etc/init.d/network restart
53 | uci commit
54 | 
55 | http://127.0.0.1:2080/
56 | 
57 | 
58 | 
59 | 
60 | Create VBox NatNetwork 192.168.3.0/24 , no DHCP,
61 | forward 2023 -> 192.168.3.5 22, 2081 -> 192.168.3.5 80
62 | 
63 | 
64 | Take VM snapshot, clone
65 | generate all new MACs, full clone
66 | eth0 "NatNetwork"
67 | eth1 internal network, cable disconnected
68 | 
69 | # give the client br-lan another subnet
70 | uci set network.lan.ipaddr=192.168.3.5
71 | uci set system.@system[0].hostname='ClientHost'
72 | 
73 | /etc/init.d/network restart
74 | 
75 | uci commit
76 | 
77 | http://127.0.0.1:2081/
78 | 
79 | =========================================
80 | 


--------------------------------------------------------------------------------
/prog/java/java8-faq.txt:
--------------------------------------------------------------------------------
 1 | Q: extract a page (range) from a stream
 2 | A: skip(), then limit()
 3 | 
 4 | Q: void functional interface with no argument
 5 | A: Runnable
 6 | 
 7 | Q:
 8 | A:
 9 |     public interface MethodGetter {
10 |         String getMethod();
11 |     }
12 |     
13 |     // non-static getter method refernce is a Function that accepts 'this'
14 |     public static <T extends MethodGetter> String getMethodName(T mock, final Function<T, ?> getter) {
15 |         getter.apply( mock );
16 |         return mock.getMethod();
17 |     }
18 | 
19 |     class X extends FooBean implements MethodGetter {
20 |         String name;
21 |         @Override
22 |         public Object getX()
23 |         {
24 |             name = "TODO: find out method name";
25 |             return null;
26 |         }
27 |         @Override
28 |         public String getMethod()
29 |         {
30 |             return name;
31 |         }
32 |     }
33 | 
34 |     X mock = new X();
35 |     String s = getMethodName(mock, FooBean::getX);
36 | 
37 | 
38 | java 8
39 | Lambdas, method::references
40 | default methods
41 | java.util.function
42 | java.util.stream
43 | 
44 | 
45 | Lamdas example:
46 | 
47 | Arrays.asList("a", "b").stream().forEach((String s) -> { System.out.println(s);});
48 | Arrays.asList("a", "b").stream().forEach(s -> { System.out.println(s);});
49 | Arrays.asList("a", "b").stream().forEach(s -> System.out.println(s));
50 | 
51 | 
52 | the following is not needed, use Stream.toArray
53 |     public static <T> Collector<T, //
54 |         ?, // NOSONAR
55 |         T[]> toArrayCollector3(final Supplier<T[]> supplier) {
56 |         return Collector
57 |             .of(
58 |                 ArrayList::new, // supplier,
59 |                 List::add, // accumulator,
60 |                 (left, right) -> {
61 |                     left.addAll(right);
62 |                     return left;
63 |                 }, // combiner,
64 |                 a -> a.toArray(supplier.get()) // finisher
65 |             );
66 |     }
67 | 


--------------------------------------------------------------------------------
/prog/cisco-anyconnect/anyconnect-faq.txt:
--------------------------------------------------------------------------------
 1 | Q:
 2 |   nested VPN big packet loss
 3 |   connection was reset 
 4 | A:
 5 |   Windows 7-10: 
 6 |     netsh interface ipv4 set subinterface "Ethernet 2" mtu=1300 store=persistent
 7 |   Mac (needed every time):
 8 |     ifconfig utun4 mtu 1300
 9 | 
10 | Q: Your device doesn't meet the requirements
11 | A:
12 |   - Check that installed version is the same as the working version
13 |   - check the log files
14 |     %LOCALAPPDATA%\Cisco\Cisco HostScan\log\libcsd.log
15 |     %LOCALAPPDATA%\Cisco\Cisco HostScan\log\cscan.log
16 | 
17 | Q:
18 |   Posture Assessment Failed: Hostscan CSD prelogin verification failed.
19 |   
20 |   %LOCALAPPDATA%\Cisco\Cisco HostScan\log\libcsd.log
21 |   unable to bind to ipc port.
22 | 
23 | A:
24 |   https://quickview.cloudapps.cisco.com/quickview/bug/CSCvy56297
25 |   > Port 60808 being used by some other application that AnyConnect/CScan
26 |   
27 |   $ socat TCP-LISTEN:60808 STDIO
28 |   2021/07/23 11:45:27 socat[1449] E bind(5, {AF=2 0.0.0.0:60830}, 16): Permission denied
29 |   
30 |   :\WINDOWS\system32>netsh int ipv4 show excludedportrange protocol=tcp
31 |   
32 |   Протокол tcp Диапазоны исключения портов
33 |   
34 |   Начальный порт    Конечный порт
35 |   ----------    --------
36 |        50000       50059     *
37 |        60766       60865
38 |        60866       60965
39 |        60966       61065
40 |        61066       61165
41 |        
42 |   C:\WINDOWS\system32>dism /online /get-features | find /i "Microsoft-Hyper-V"
43 |   Имя функции : Microsoft-Hyper-V-All
44 |   Имя функции : Microsoft-Hyper-V
45 |   Имя функции : Microsoft-Hyper-V-Tools-All
46 |   Имя функции : Microsoft-Hyper-V-Management-PowerShell
47 |   Имя функции : Microsoft-Hyper-V-Hypervisor
48 |   Имя функции : Microsoft-Hyper-V-Services
49 |   Имя функции : Microsoft-Hyper-V-Management-Clients
50 |   
51 |   !!! solution !!!
52 |   net stop winnat & netsh int ipv4 add excludedportrange protocol=tcp startport=60808 numberofports=1 & net start winnat
53 |   !!! solution !!!
54 |   
55 |   https://stackoverflow.com/a/65254516/447503
56 | 


--------------------------------------------------------------------------------
/prog/openconnect/mingw-build.txt:
--------------------------------------------------------------------------------
 1 | https://martchus.no-ip.biz/repo/arch/ownstuff/os/x86_64/
 2 | gcc
 3 | #df -m /tmp | { read -r x; read -r x x x avail x; test 12000 -le "$avail"; } && yaourt --m-arg "--skippgpcheck" -S --noconfirm --asdeps --needed mingw-w64-gcc
 4 | df -m /tmp | { read -r x; read -r x x x avail x; test 12000 -le "$avail"; } && pikaur --mflags="--skippgpcheck" -S --noconfirm --asdeps --needed mingw-w64-gcc
 5 | 
 6 | #yaourt --m-arg "--skippgpcheck" -S --noconfirm --asdeps --needed mingw-w64-gnutls
 7 | #yaourt --m-arg "--skippgpcheck" -S --noconfirm --asdeps --needed mingw-w64-libxml2
 8 | #yaourt --m-arg "--skippgpcheck" -S --noconfirm --asdeps --needed mingw-w64-lz4
 9 | 
10 | pikaur --mflags="--skippgpcheck" -S --noconfirm --asdeps --needed mingw-w64-gnutls
11 | pikaur --mflags="--skippgpcheck" -S --noconfirm --asdeps --needed mingw-w64-libxml2
12 | pikaur --mflags="--skippgpcheck" -S --noconfirm --asdeps --needed mingw-w64-lz4
13 | 
14 | #/usr/i686-w64-mingw32/lib/libssp.a is owned by mingw-w64-gcc 11.2.0-1
15 | 
16 | cd ~/builds
17 | git clone --depth=1 git://git.infradead.org/users/dwmw2/openconnect.git
18 | cd ~/builds/openconnect
19 | autoreconf -i
20 | 
21 | ./configure --host=x86_64-w64-mingw32
22 | #./configure --host=i686-w64-mingw32
23 | 
24 | make
25 | make DESTDIR=$HOME/builds/openconnect-inst install
26 | 
27 | 
28 | #wget ftp://ftp.infradead.org/pub/openconnect/openconnect-7.08.tar.gz
29 | #tar -xf openconnect-7.08.tar.gz
30 | #cd openconnect-7.08
31 | 
32 | 
33 | packaging:
34 | copy the binary from $DESTDIR/usr/local/sbin
35 | copy libopenconnect-*.dll binary from $DESTDIR/usr/local/bin
36 | 
37 | copy needed dlls from /usr/i686-w64-mingw32/bin
38 | libatomic-*.dll;libffi-*.dll;libgcc_s_seh-*.dll;libgmp-*.dll;libgmpxx-*.dll;libgnutls-*.dll;libhogweed-*.dll;libiconv-*.dll;libidn2-*.dll;liblz4.dll;liblzma-*.dll;libnettle-*.dll;libopenconnect-*.dll;libp11-kit-*.dll;libproxy-*.dll;libssp-*.dll;libstdc++-*.dll;libtasn1-*.dll;libunistring-*.dll;libwinpthread-*.dll;libxml2-*.dll;zlib1.dll
39 | 
40 | if gnutls doesn't work, download gnutls windows build from official site
41 | 
42 | 


--------------------------------------------------------------------------------
/prog/cvs/cvsnt-faq.txt:
--------------------------------------------------------------------------------
 1 | Q: cvs server: Couldn't open default trigger library: No such file or directory
 2 | A: The server component is not installed
 3 | 
 4 | Q: Tray icons flood by cvs lock server
 5 | A: cvs lock server can't start.
 6 |   For diagnostics C:\>
 7 |     cvslock -test
 8 | 
 9 |   Possibly, the "cvslock" service prevents another instance from starting.
10 |   C:\>
11 |     net stop cvslock
12 |     sc config cvslock start= disabled
13 |     rem start "CVSNT Lockserver debug window" /MIN cvslock -systray && cmdow "CVSNT Lockserver debug window" /HID
14 |     cmdow /RUN /HID cvslock -systray
15 | 
16 | Q: Ads in commit messages (CVSNT 2.5.05.3744 and later)
17 | A:
18 |     Windows Registry Editor Version 5.00
19 |     
20 |     [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\CVS\Pserver]
21 |     "HaveBoughtSuite"="yes"
22 | 
23 | 
24 | Q:  C:\>cvs server
25 |     Root C:\foo
26 |     : no such repositoryd]: C:\foo
27 |     error
28 | 
29 | A: 
30 | - Repo not registered:
31 | 
32 |     Windows Registry Editor Version 5.00
33 |     
34 |     [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\CVS\Pserver]
35 |     "Repository0"="C:\\foo"
36 |     "Repository0Name"="C:\\foo"
37 |     "Repository1"="C:\\bar"
38 |     "Repository1Name"="C:\\bar"
39 | 
40 |  or erase the repo directory and recreate it with `cvs init` without the '-n' flag
41 | 
42 | - CRLF fed to cvs server stdin. Change to LF
43 | 
44 | Q: local repo
45 | A:
46 |     rmdir /S /Q cvs_repository empty_dir work_dir
47 |     
48 |     mkdir cvs_repository
49 |     set CVSROOT=:local:%CD%\cvs_repository
50 |     cvs init -n
51 |     
52 |     mkdir empty_dir
53 |     cd empty_dir
54 |     cvs import -mroot myprojects vtag rtag
55 |     cd ..
56 |     
57 |     mkdir work_dir
58 |     cd work_dir
59 |     cvs co myprojects
60 |     cd myprojects
61 |     
62 |     type nul>a && type nul>b && type nul>c
63 |     cvs add a b c
64 |     
65 |     cvs commit -mabc
66 |     
67 |     echo %date% >d
68 |     echo %date% >a
69 |     del b
70 |     
71 |     cvs add d
72 |     cvs rm b
73 |     
74 |     cvs commit -macd
75 | 


--------------------------------------------------------------------------------
/prog/stm32/ecdt/ecdt-faq.txt:
--------------------------------------------------------------------------------
 1 | Q: ???
 2 | A: handle SIGTRAP nostop
 3 | 
 4 | Q: ???
 5 | A: 
 6 |   Startup tab, above "Enable Arm semihosting" or in the "Run/Restart commands" block
 7 |   monitor arm semihosting_cmdline argv0 argv1 argv2 argv3
 8 |   https://gnu-mcu-eclipse.github.io/blog/2018/01/23/openocd-v0-10-0-7-20180123-released/
 9 | 
10 | 
11 | Q: HAL_RTC_WaitForSynchro() fails after full poweroff.
12 |   RTC->CNTL not incrementng,
13 |   The bits RTC_CRL_RSF and RTC_CRL_SECF aren't set in RTC->CRL.
14 | 
15 | A: Make sure HAL_RTC_MspInit() (the overriden version from rtc.c) was called. It calls these macros:
16 |     HAL_PWR_EnableBkUpAccess();
17 |     __HAL_RCC_BKP_CLK_ENABLE();
18 |     __HAL_RCC_RTC_ENABLE();
19 | 
20 |   May happen when hrtc->State not initialized to 0 (HAL_RTC_STATE_RESET)
21 | 
22 | Q: enable/disable semihosting
23 | A:
24 | 
25 |   In stm32f1xx_it.c from CubeMX we have a dumb HardFault_Handler that overrides the one in system/src/cortexm/exception-handlers.c
26 |   With it, the program cannot recover from call_host fault when no debugger is attached.
27 | 
28 |   stm32f1xx_it.c needs to be renamed to *.bak.
29 |   However, it has the proper implementation of SysTick_Handler. This needs to be copied to main.c
30 | 
31 |   Project properties -> C/C++ General -> Settings -> Tool Settings -> Optimization
32 |     Uncheck "Assume freestanding environment"
33 | 
34 |   Project properties -> C/C++ General -> Paths and Symbols -> Symbols
35 |   
36 |   After pressing "Add" try checking "Add to all languages" and "Add to all configurations" checkboxes.
37 |   
38 |   Assembly
39 |   GNU C
40 |   GNU C++
41 |   
42 |     Configuration: Debug
43 |       OS_USE_SEMIHOSTING
44 |       OS_USE_TRACE_SEMIHOSTING_DEBUG
45 |   
46 |   
47 |     Configuration: Release
48 |       OS_USE_SEMIHOSTING
49 | 
50 | 
51 |   main.c:
52 |   
53 |     #include <stdio.h>
54 |     #include <stdlib.h>
55 |     #include "diag/trace.h"
56 |   
57 |     ...
58 |   
59 |     // Send a greeting to the trace device (skipped on Release).
60 |     trace_puts("Hello Arm World!");
61 |   
62 |     // Send a message to the standard output.
63 |     puts("Standard output message.");
64 | 


--------------------------------------------------------------------------------
/prog/documentum/xcp-msg-preview.txt:
--------------------------------------------------------------------------------
 1 | msg preview requires CTS
 2 | 
 3 | CTS is a client, not a server, so to enable it on a given repository a system administrator
 4 | needs to launch the Configurator on the CTS host (accessible through the Windows Start menu)
 5 | and add the repo.
 6 | 
 7 | Also, the Content Server needs an accessible IP address. That is, it's hard to enable CTS on a developer's host.
 8 | 
 9 | Although jpg preview is available, pdf is preferrable, because the xCP Advanced Viewer allows to select text within pdf.
10 | 
11 | The Advanced Viewer will request the CTS profile 'transform_mime' to create a pdf.
12 | 
13 | Administration / Content Transformation Services / Profiles
14 | Choose "show public and system"
15 | 
16 | SELECT p.r_object_id, p.object_name, p.title, f.r_folder_path FROM dm_media_profile p , dm_folder f
17 |   WHERE any p.i_folder_id = f.r_object_id
18 |   and f.r_folder_path is not nullstring
19 |   and p.object_name = 'transform_mime'
20 |   enable (ROW_BASED);
21 | 
22 | object_name: transform_mime
23 | title: Profile for DOC7 Transformation
24 | Folder Path: /System/Media Server/System Profiles
25 | 
26 | Content:
27 |   <Profile name="transform_mime" label="Profile for DOC7 Transformation" description="Profile for DOC7 Transformation" taskImpl="com.documentum.cts.impl.services.task.doc7.Doc7TaskProcessor" related_objects_only="false" notify_result="false" operation="transform" xmlns:dctm="http://www.documentum.com" dctm:obj_status="~DCTM_STATUS" dctm:obj_id="~DCTM_OBJ_ID" dctm:version_label="~VERSION_LABEL">
28 |       <Formats>
29 |           <Format source="msg" target="crtext"/>
30 |           <Format source="msg" target="rtf"/>
31 |   		<!-- <Format source="msg" target="jpeg"/> -->
32 |   		<Format source="msg" target="pdf"/>
33 |           <Format source="eml" target="crtext"/>		
34 |   		<Format source="eml" target="pdf"/>
35 |   		<Format source="eml" target="rtf"/>
36 |       </Formats>
37 |       <Filters>
38 |           <Filter name="CTSProduct" value="ADTS"/> 
39 |           <Filter name="Visibility" value="System"/>
40 |       </Filters>
41 |       <Transcodings>
42 |           <Transcode name="transform_mime" label="Profile for mime Transformation">
43 |           </Transcode>
44 |       </Transcodings>
45 |       <CommandFilePath mptype="DOC7">
46 |           /System/Media Server/Command Line Files/mime_clf.xml
47 |       </CommandFilePath>
48 |   </Profile>
49 | 


--------------------------------------------------------------------------------
/prog/mendix/extract-glyphicons/reportLabPen.py:
--------------------------------------------------------------------------------
 1 | from fontTools.misc.py23 import *
 2 | from fontTools.pens.basePen import BasePen
 3 | from reportlab.graphics.shapes import Path
 4 | 
 5 | 
 6 | __all__ = ["ReportLabPen"]
 7 | 
 8 | 
 9 | class ReportLabPen(BasePen):
10 | 
11 | 	"""A pen for drawing onto a reportlab.graphics.shapes.Path object."""
12 | 
13 | 	def __init__(self, glyphSet, path=None):
14 | 		BasePen.__init__(self, glyphSet)
15 | 		if path is None:
16 | 			path = Path()
17 | 		self.path = path
18 | 
19 | 	def _moveTo(self, p):
20 | 		(x,y) = p
21 | 		self.path.moveTo(x,y)
22 | 
23 | 	def _lineTo(self, p):
24 | 		(x,y) = p
25 | 		self.path.lineTo(x,y)
26 | 
27 | 	def _curveToOne(self, p1, p2, p3):
28 | 		(x1,y1) = p1
29 | 		(x2,y2) = p2
30 | 		(x3,y3) = p3
31 | 		self.path.curveTo(x1, y1, x2, y2, x3, y3)
32 | 
33 | 	def _closePath(self):
34 | 		self.path.closePath()
35 | 
36 | 
37 | if __name__=="__main__":
38 | 	import sys
39 | 	if len(sys.argv) < 3:
40 | 		print("Usage: reportLabPen.py <OTF/TTF font> <glyphname> [<image file to create>]")
41 | 		print("  If no image file name is created, by default <glyphname>.png is created.")
42 | 		print("  example: reportLabPen.py Arial.TTF R test.png")
43 | 		print("  (The file format will be PNG, regardless of the image file name supplied)")
44 | 		sys.exit(0)
45 | 
46 | 	from fontTools.ttLib import TTFont
47 | 	from reportlab.lib import colors
48 | 
49 | 	path = sys.argv[1]
50 | 	glyphName = sys.argv[2]
51 | 	if (len(sys.argv) > 3):
52 | 		imageFile = sys.argv[3]
53 | 	else:
54 | 		imageFile = "%s.png" % glyphName
55 | 
56 | 	font = TTFont(path)  # it would work just as well with fontTools.t1Lib.T1Font
57 | 	gs = font.getGlyphSet()
58 | 	pen = ReportLabPen(gs, Path(fillColor=colors.black, strokeWidth=0))
59 | 	#pen = ReportLabPen(gs, Path(fillColor=colors.red, strokeWidth=5))
60 | 	g = gs[glyphName]
61 | 	g.draw(pen)
62 | 
63 | 	w, h = g.width, 1000
64 | 	from reportlab.graphics import renderPM
65 | 	from reportlab.graphics.shapes import Group, Drawing, scale
66 | 
67 | 	# Everything is wrapped in a group to allow transformations.
68 | 	g = Group(pen.path)
69 | 	g.translate(10, 10)
70 | 	#g.scale(0.9, 0.9)
71 | 	#g.scale(0.3, 0.3)
72 | 	g.scale(0.8, 0.8)
73 | 
74 | 	d = Drawing(w, h)
75 | 	d.add(g)
76 | 
77 | 	from reportlab.lib.colors import white
78 | 	from reportlab.lib.colors import green
79 | 	renderPM.drawToFile(d, imageFile, fmt="TIFF", configPIL={'transparent':white})
80 | 


--------------------------------------------------------------------------------
/prog/documentum/xcp-result-list-arq.txt:
--------------------------------------------------------------------------------
 1 | Result List with ARQ guide
 2 | 
 3 | - have default sorting
 4 | - sort case insensitive
 5 | - have "Displaying Page 1 of n"
 6 | 
 7 | If the query returns col1, col2, etc.
 8 | the query string MUST begin with:
 9 | 
10 |   select
11 |   lower(col1) as l_col1,
12 |   lower(col2) as l_col2,
13 |   ...
14 |   col1, col2, ...
15 | 
16 | This is to have default sort by "col1", case insensitive.
17 | The query will have "order by 1" unless "Sort By" is non-empty or until a column header is clicked.
18 | 
19 | The query MUST end with
20 | 
21 |   order by ?
22 | 
23 | Otherwise the columns cannot be sortable.
24 | 
25 | The input parameters in ARQ are dollar-quoted, uppercase: $PARAM$
26 | 
27 | Multivalue (repeating) parameters MUST be used in a in() clause: in($PARAM$)
28 | 
29 | When you press "SyncQuery" the Multivalued checkbox is not preserved (bug).
30 | 
31 | When you press "Finish", the "Enable Sorting" checkbox is not preserved (bug).
32 | Workaround: edit and replace
33 | (<outputs.*label="[^"]{0,200}")>
34 | with
35 | $1 sortable="true">
36 | 
37 | and
38 | 
39 | (<elements.*label="[^"]{0,200}")>
40 | with
41 | $1 sortable="true">
42 | 
43 | 
44 | 
45 | After closing the "Validate DQL Query" window go to the "Output Columns" section and check the "Enable Sorting" checkboxes, at least, for the lowercase columns.
46 | 
47 | Attach the ARQ to the Result List.
48 | 
49 | Remove all non-lowercase columns
50 | 
51 | Click all the remaining columns and check the "Can be used to sort" checkbox.
52 | 
53 | Set the columns property "Display" the actual non-lowercase data column.
54 | 
55 | Clear the "Width" property of the last column
56 | 
57 | Create a copy of the ARQ and name it "Existing Name Count"
58 | 
59 | Wrap the DQL with:
60 | 
61 |   select count(*) from (
62 |   ...
63 |   ) t
64 | 
65 | Make sure all multivalue input properties are marked
66 | 
67 | Enable the Result List property "Display Record Count" and use the following expression:
68 | 
69 |   arrayMax( { <Count-ARQ>.count[0], 1 } )
70 | 
71 | This is to avoid "Displaying Page 1 of 0"
72 | 
73 | To enable a tooltip for a cell, change the "Data Type" to "HTML" and set the value to: 
74 | 
75 |   '<span title="' + htmlEncode(Outputs.supp_address) + '">'+ htmlEncode(Outputs.supp_address) + '</span>'
76 | 
77 | To draw a border around Result List put it into a Column Box cell and in the column properties 
78 | add CSS style: table_style
79 | 


--------------------------------------------------------------------------------
/unix/linux/rhel/7.x/openafs-faq.txt:
--------------------------------------------------------------------------------
 1 | Q: benefits
 2 | A: 
 3 |   vs NFS:
 4 |     - Dynamic fileserver address
 5 |     - Low fileserver phaseout downtime
 6 |     - One FS "/afs" (Linux autofs nullifies this benefit)
 7 | 
 8 |   vs GlusterFS (with one remote brick and a local tier):
 9 |     - WAN performance better
10 | 
11 | 
12 | Q: drawbacks
13 | A:
14 |   - "Caching" no better than NFS with cachefilesd
15 |   - Disconnected operation `fs discon on` not automatic
16 |   - Multi-homed peers unsupported
17 |   - Clients with NAT unsupported (compare exports(5) insecure)
18 |   - chown only for system:administrators (compare exports(5) no_root_squash)
19 | 
20 | 
21 | Q: bos: can't open cell database (/etc/openafs/server)
22 | A:
23 |   check:
24 |     /etc/openafs/server/CellServDB
25 |     /etc/openafs/server/ThisCell
26 |     /etc/openafs/server/krb.conf
27 |       (must not be empty)
28 | 
29 | Q:
30 |     cd /afs/.:mount/${cellname}:root.afs/
31 |     fs mkmount ${cellname} root.cell -cell ${cellname}
32 |     fs: You don't have the required access rights on 'localcell'
33 |     ls /afs/.:mount/${cellname:?}:root.afs/
34 |     ls: cannot open directory /afs/.:mount/localcell:root.afs/: Permission denied
35 | 
36 | A:
37 |     fileserver thinks your token is anonymous. Check krb.conf
38 | 
39 | Q:
40 |     echo 192.168.140.113 >/var/openafs/NetInfo
41 |     ln -sfT /var/openafs/NetInfo /etc/openafs/server/NetInfo
42 |     
43 |     /var/openafs/logs/VLLog
44 |         The following fileserver is being registered in the VLDB:
45 |               [192.168.140.113]
46 |            It will replace the following existing entry in the VLDB (same uuid):
47 |               entry 0: [192.168.140.113 10.8.1.33]
48 | 
49 | A:
50 |   TODO
51 | 
52 | 
53 | Q:
54 |   in client syslog/journal:
55 |     kernel: afs: Lost contact with file server 10.8.1.33 in cell localcell (code -1) (multi-homed address; other same-host interfaces maybe up)
56 | 
57 | A:
58 |   TODO?
59 |   workaround: NetInfo
60 | 
61 | Q: increase debug level
62 | A:
63 |   pkill -TSTP fileserver # twice enough
64 |   tail -F /var/openafs/logs/FileLog
65 |   
66 |   pkill -TSTP ptserver # twice enough
67 |   tail -F /var/openafs/logs/PtLog
68 | 
69 | 
70 | Q:
71 | A:
72 | 
73 | It sounds like you want to use IP ACL's as Harmut suggests.
74 | 
75 | # as an AFS admin, run the following:
76 | pts createuser 192.168.148.156
77 | pts creategroup homeusers
78 | pts adduser 192.168.148.156 homeusers
79 | fs setacl /afs/.localcell/home homeusers rlidwk
80 | 


--------------------------------------------------------------------------------
/prog/ffmpeg/cue_to_mp3.py:
--------------------------------------------------------------------------------
 1 | cue_file = test.cue'
 2 | 
 3 | d = open(cue_file).read().splitlines()
 4 | 
 5 | general = {}
 6 | 
 7 | tracks = []
 8 | 
 9 | current_file = None
10 | 
11 | for line in d:
12 |     if line.startswith('REM GENRE '):
13 |         general['genre'] = ' '.join(line.split(' ')[2:])
14 |     if line.startswith('REM DATE '):
15 |         general['date'] = ' '.join(line.split(' ')[2:])
16 |     if line.startswith('PERFORMER '):
17 |         general['artist'] = ' '.join(line.split(' ')[1:]).replace('"', '')
18 |     if line.startswith('TITLE '):
19 |         general['album'] = ' '.join(line.split(' ')[1:]).replace('"', '')
20 |     if line.startswith('FILE '):
21 |         current_file = ' '.join(line.split(' ')[1:-1]).replace('"', '')
22 |     
23 |     if line.startswith('  TRACK '):
24 |         track = general.copy()
25 |         track['track'] = int(line.strip().split(' ')[1], 10)
26 | 
27 |         tracks.append(track)
28 | 
29 |     if line.startswith('    TITLE '):
30 |         tracks[-1]['title'] = ' '.join(line.strip().split(' ')[1:]).replace('"', '')
31 |     if line.startswith('    PERFORMER '):
32 |         tracks[-1]['artist'] = ' '.join(line.strip().split(' ')[1:]).replace('"', '')
33 |     if line.startswith('    INDEX 01 '):
34 |         t = map(int, ' '.join(line.strip().split(' ')[2:]).replace('"', '').split(':'))
35 |         tracks[-1]['start'] = 60 * t[0] + t[1] + t[2] / 100.0
36 | 
37 | for i in range(len(tracks)):
38 |     if i != len(tracks) - 1:
39 |         tracks[i]['duration'] = tracks[i + 1]['start'] - tracks[i]['start']
40 | 
41 | for track in tracks:
42 |     metadata = {
43 |         'artist': track['artist'],
44 |         'title': track['title'],
45 |         'album': track['album'],
46 |         'track': str(track['track']) + '/' + str(len(tracks))
47 |     }
48 | 
49 |     if 'genre' in track:
50 |         metadata['genre'] = track['genre']
51 |     if 'date' in track:
52 |         metadata['date'] = track['date']
53 | 
54 |     cmd = '</dev/null ffmpeg'
55 |     cmd += ' -i "%s"' % current_file
56 |     cmd += ' -ss %.2d:%.2d:%.2d' % (track['start'] / 60 / 60, track['start'] / 60 % 60, int(track['start'] % 60))
57 | 
58 |     cmd += ' -b:a 320k'
59 | 
60 |     if 'duration' in track:
61 |         cmd += ' -t %.2d:%.2d:%.2d' % (track['duration'] / 60 / 60, track['duration'] / 60 % 60, int(track['duration'] % 60))
62 | 
63 |     cmd += ' ' + ' '.join('-metadata %s="%s"' % (k, v) for (k, v) in metadata.items())
64 |     cmd += ' "%.2d - %s - %s.mp3"' % (track['track'], track['artist'], track['title'])
65 | 
66 |     print cmd
67 | 


--------------------------------------------------------------------------------
/unix/linux/il/fs-default/etc/mdadm.conf:
--------------------------------------------------------------------------------
 1 | # mdadm configuration file
 2 | #
 3 | # mdadm will function properly without the use of a configuration file,
 4 | # but this file is useful for keeping track of arrays and member disks.
 5 | # In general, a mdadm.conf file is created, and updated, after arrays
 6 | # are created. This is the opposite behavior of /etc/raidtab which is
 7 | # created prior to array construction.
 8 | #
 9 | #
10 | # the config file takes two types of lines:
11 | #
12 | #	DEVICE lines specify a list of devices of where to look for
13 | #	  potential member disks
14 | #
15 | #	ARRAY lines specify information about how to identify arrays so
16 | #	  so that they can be activated
17 | #
18 | 
19 | 
20 | # You can have more than one device line and use wild cards. The first 
21 | # example includes SCSI the first partition of SCSI disks /dev/sdb,
22 | # /dev/sdc, /dev/sdd, /dev/sdj, /dev/sdk, and /dev/sdl. The second 
23 | # line looks for array slices on IDE disks.
24 | #
25 | #DEVICE /dev/sd[bcdjkl]1
26 | #DEVICE /dev/hda1 /dev/hdb1
27 | #
28 | # The designation "partitions" will scan all partitions found in
29 | # /proc/partitions
30 | DEVICE partitions
31 | 
32 | 
33 | # ARRAY lines specify an array to assemble and a method of identification.
34 | # Arrays can currently be identified by using a UUID, superblock minor number,
35 | # or a listing of devices.
36 | #
37 | #	super-minor is usually the minor number of the metadevice
38 | #	UUID is the Universally Unique Identifier for the array
39 | # Each can be obtained using
40 | #
41 | # 	mdadm -D <md>
42 | #
43 | # To capture the UUIDs for all your RAID arrays to this file, run these:
44 | #    to get a list of running arrays:
45 | #    # mdadm -D --scan >>/etc/mdadm.conf
46 | #    to get a list from superblocks:
47 | #    # mdadm -E --scan >>/etc/mdadm.conf
48 | #
49 | #ARRAY /dev/md0 UUID=3aaa0122:29827cfa:5331ad66:ca767371
50 | #ARRAY /dev/md1 super-minor=1
51 | #ARRAY /dev/md2 devices=/dev/hda1,/dev/hdb1
52 | #
53 | # ARRAY lines can also specify a "spare-group" for each array.  mdadm --monitor
54 | # will then move a spare between arrays in a spare-group if one array has a
55 | # failed drive but no spare
56 | #ARRAY /dev/md4 uuid=b23f3c6d:aec43a9f:fd65db85:369432df spare-group=group1
57 | #ARRAY /dev/md5 uuid=19464854:03f71b1b:e0df2edd:246cc977 spare-group=group1
58 | #
59 | 
60 | 
61 | # When used in --follow (aka --monitor) mode, mdadm needs a
62 | # mail address and/or a program.  To start mdadm's monitor mode, enable
63 | # mdadm.service in systemd.
64 | #
65 | # If the lines are not found, mdadm will exit quietly
66 | #MAILADDR root@mydomain.tld
67 | #PROGRAM /usr/sbin/handle-mdadm-events
68 | 


--------------------------------------------------------------------------------
/unix/linux/il/fs/etc/mdadm.conf:
--------------------------------------------------------------------------------
 1 | # mdadm configuration file
 2 | #
 3 | # mdadm will function properly without the use of a configuration file,
 4 | # but this file is useful for keeping track of arrays and member disks.
 5 | # In general, a mdadm.conf file is created, and updated, after arrays
 6 | # are created. This is the opposite behavior of /etc/raidtab which is
 7 | # created prior to array construction.
 8 | #
 9 | #
10 | # the config file takes two types of lines:
11 | #
12 | #	DEVICE lines specify a list of devices of where to look for
13 | #	  potential member disks
14 | #
15 | #	ARRAY lines specify information about how to identify arrays so
16 | #	  so that they can be activated
17 | #
18 | 
19 | 
20 | # You can have more than one device line and use wild cards. The first 
21 | # example includes SCSI the first partition of SCSI disks /dev/sdb,
22 | # /dev/sdc, /dev/sdd, /dev/sdj, /dev/sdk, and /dev/sdl. The second 
23 | # line looks for array slices on IDE disks.
24 | #
25 | #DEVICE /dev/sd[bcdjkl]1
26 | #DEVICE /dev/hda1 /dev/hdb1
27 | #
28 | # The designation "partitions" will scan all partitions found in
29 | # /proc/partitions
30 | DEVICE partitions
31 | 
32 | 
33 | # ARRAY lines specify an array to assemble and a method of identification.
34 | # Arrays can currently be identified by using a UUID, superblock minor number,
35 | # or a listing of devices.
36 | #
37 | #	super-minor is usually the minor number of the metadevice
38 | #	UUID is the Universally Unique Identifier for the array
39 | # Each can be obtained using
40 | #
41 | # 	mdadm -D <md>
42 | #
43 | # To capture the UUIDs for all your RAID arrays to this file, run these:
44 | #    to get a list of running arrays:
45 | #    # mdadm -D --scan >>/etc/mdadm.conf
46 | #    to get a list from superblocks:
47 | #    # mdadm -E --scan >>/etc/mdadm.conf
48 | #
49 | #ARRAY /dev/md0 UUID=3aaa0122:29827cfa:5331ad66:ca767371
50 | #ARRAY /dev/md1 super-minor=1
51 | #ARRAY /dev/md2 devices=/dev/hda1,/dev/hdb1
52 | #
53 | # ARRAY lines can also specify a "spare-group" for each array.  mdadm --monitor
54 | # will then move a spare between arrays in a spare-group if one array has a
55 | # failed drive but no spare
56 | #ARRAY /dev/md4 uuid=b23f3c6d:aec43a9f:fd65db85:369432df spare-group=group1
57 | #ARRAY /dev/md5 uuid=19464854:03f71b1b:e0df2edd:246cc977 spare-group=group1
58 | #
59 | 
60 | 
61 | # When used in --follow (aka --monitor) mode, mdadm needs a
62 | # mail address and/or a program.  To start mdadm's monitor mode, enable
63 | # mdadm.service in systemd.
64 | #
65 | # If the lines are not found, mdadm will exit quietly
66 | #MAILADDR root@mydomain.tld
67 | #PROGRAM /usr/sbin/handle-mdadm-events
68 | 
69 | # see /etc/postfix/copy.regexp
70 | MAILADDR root
71 | 


--------------------------------------------------------------------------------
/unix/linux/rhel/6.x/etc/init.d/powermail:
--------------------------------------------------------------------------------
  1 | #!/bin/bash
  2 | #
  3 | #
  4 | # stop before postfix:
  5 | # chkconfig: 2345 90 20
  6 | # description: Send mail when stop
  7 | 
  8 | start() {
  9 |   echo "Doing nothing"
 10 |   touch /var/lock/subsys/powermail
 11 | }
 12 | 
 13 | # print Queue ID of a message matching $msgid
 14 | match_queued() {
 15 |   mailq | (
 16 |     saveIFS=$IFS
 17 |     IFS=$IFS'!*' # Queue ID may be suffixed with one of these
 18 |     set -f # disable glob expansion in `set -- $line`
 19 |     read -r header
 20 |     qid=
 21 |     while read -r line; do
 22 |       #echo "line=$line"
 23 |       if [ -z "$line" ]; then
 24 |         # end of message
 25 |         # >&2 echo "qid=$qid"
 26 |         if postcat -q "$qid" 2>/dev/null | grep "${msgid:?}" >/dev/null; then
 27 |           printf '%s\n' "$qid"
 28 |           exit 0
 29 |         fi
 30 |         qid=
 31 |         continue
 32 |       elif [ -z "$qid" ]; then
 33 |         # processing first line
 34 |         set -- $line
 35 |         qid=$1
 36 |       fi
 37 |     done
 38 |     exit 1 # not found
 39 |   )
 40 |   return $?
 41 |   if false; then
 42 | cat <<'EOFSAMPLE'
 43 | -Queue ID- --Size-- ----Arrival Time---- -Sender/Recipient-------
 44 | B2BEF40804      455 Mon Dec 17 12:40:05  root@dioptase
 45 |         (connect to mail[192.168.149.10]:25: Connection timed out)
 46 |                                          admin@acme.com
 47 | 
 48 | E80384076B      455 Mon Dec 17 12:39:47  root@dioptase
 49 |         (connect to mail[192.168.149.10]:25: Connection timed out)
 50 |                                          admin@acme.com
 51 | 
 52 | -- 1 Kbytes in 2 Requests.
 53 | EOFSAMPLE
 54 |   fi
 55 | }
 56 | 
 57 | stop() {
 58 |   echo "sending mail to root"
 59 |   msgid=`date +%Y%m%d%H%M%S`.powermail@`hostname`
 60 |   (
 61 |     echo "To: root"
 62 |     echo "Subject: powermail"
 63 |     echo "Message-Id: <$msgid>"
 64 |     echo
 65 |     echo "Host is powering off"
 66 |     echo "runlevel: `runlevel`"
 67 |   ) | sendmail root
 68 |   echo "queued..."
 69 | 
 70 |   echo "checking..."
 71 |   if qid=`match_queued`; then
 72 |     echo "found qid=$qid"
 73 |     sleep .1
 74 |     for ((i=0;i<10;i++)); do
 75 |       postcat -q "$qid" >/dev/null 2>&1 || {
 76 |         echo "successfully sent"
 77 |         break
 78 |       }
 79 |       sleep 1
 80 |       echo "checking..."
 81 |     done
 82 |   else
 83 |     : # already removed from queue
 84 |     echo "successfully sent"
 85 |   fi
 86 |   # TODO: maybe it was a temporary message. Should call match_queued again
 87 | 
 88 |   rm -f /var/lock/subsys/powermail
 89 | }
 90 | 
 91 | # See how we were called.
 92 | case "$1" in
 93 |   start)
 94 |     start
 95 |     ;;
 96 |   stop)
 97 |     stop
 98 |     ;;
 99 |   restart)
100 |     start
101 |     ;;
102 | *)
103 |   >&2 echo $"Usage: $0 {start|stop|restart}"
104 |   exit 1
105 | esac
106 | 


--------------------------------------------------------------------------------
/prog/javascript/js-faq.txt:
--------------------------------------------------------------------------------
  1 | aaaobserver = new MutationObserver((mutations) => {
  2 |   mutations.forEach((mutation) => {
  3 |     console.log(mutation.type, mutation.target.id, mutation.attributeName);
  4 |     debugger;
  5 |     if (mutation.type === "childList" && mutation.target.id === "target") {
  6 |     }
  7 |   });
  8 | })
  9 | 
 10 | 
 11 | aaaobserver.observe(temp1, {
 12 |   attributes: true
 13 | })
 14 | 
 15 | 
 16 | Q: rethrowing errors
 17 | A: just "throw e;"
 18 | 
 19 | Q: breakpoint at navigating away from page, beforeunload or something
 20 | A:
 21 |   window.addEventListener("beforeunload", function() { debugger; }, false)
 22 | 
 23 | Q: spoof timezone
 24 | A: chrome dev tools other tools sensors
 25 | 
 26 | Q: add getter and setter
 27 | A: Object.defineProperty
 28 | 
 29 |   this._labelWidth = this.labelWidth;
 30 |   Object.defineProperty(this, "labelWidth", {configurable: true, get: function() { return this._labelWidth; }, set: function (x) {
 31 |     console.log("setting labelWidth2");
 32 |     this._labelWidth = x;
 33 |   } });
 34 | 
 35 |   Object.defineProperty(this,"labelWidth",{get:undefined, set:undefined})
 36 | 
 37 | 
 38 | Q: when to use setAttribute
 39 | A: 
 40 | You should always use the direct .attribute form
 41 | Use getAttribute/setAttribute when you wish to deal with the DOM as it is (e.g. literal text only)
 42 | https://quirksmode.org/dom/core/#attributes
 43 | 
 44 | Q: escape html
 45 | A:
 46 | 	function escapeHTML(s) {
 47 | 	    return s.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');
 48 | 	}
 49 | 
 50 | Q: iterate
 51 | A:
 52 |     for (var key in col) {
 53 |         col[key]
 54 |     }
 55 | 
 56 |     HTMLCollection:
 57 | 
 58 | Q: alert dump object
 59 | A: JSON.stringify(obj, null, 4)
 60 | 
 61 | Q:
 62 |     Why is
 63 |         typeof v === 'undefined'
 64 |     safer than
 65 |         v === undefined
 66 |     ?
 67 |     
 68 | A:
 69 |     using typeof covers cases when the variable does not exist at all
 70 | 
 71 | 
 72 | Q: comparison
 73 | A: 
 74 | 
 75 |     == 	equal to 	x == 8 	false 	Try it 	
 76 |     x == 5 	true 	Try it 	
 77 |     x == "5" 	true 	Try it 	
 78 |     
 79 |     === 	equal value and equal type 	x === 5 	true 	Try it 
 80 |     x === "5" 	false 	Try it 
 81 |     
 82 |     != 	not equal 	x != 8 	true 	Try it 
 83 |     
 84 |     !== 	not equal value or not equal type 	x !== 5 	false 	Try it 
 85 |     x !== "5" 	true 	Try it 
 86 |     x !== 8 	true 	Try it 
 87 |     
 88 |     > 	greater than 	x > 8 	false 	Try it 
 89 |     
 90 |     < 	less than 	x < 8 	true 	Try it 
 91 |     
 92 |     >= 	greater than or equal to 	x >= 8 	false 	Try it 
 93 |     
 94 |     <= 	less than or equal to 	x <= 8 	true 	Try it 
 95 | 
 96 | Q: remove search parameters from url
 97 | A:
 98 |   str.replace( /(?:(^[?]|&)(?=.*&)|^[?]|&)(nominify|webby|reload)(?:&|$)/g, "$1")
 99 |   TODO: this only handles params without equal sign =
100 | 


--------------------------------------------------------------------------------
/prog/db2/hadr/hadr-faq.txt:
--------------------------------------------------------------------------------
 1 | Q: Stop standby
 2 | A:
 3 | 	$ db2haicu -disable
 4 | 	You will need to run db2haicu again to enable the instance for HA. Disable HA for the instance 'db2inst1'? [1]
 5 | 	1. Yes
 6 | 	2. No
 7 | 	1
 8 | 
 9 | 	$ db2 deactivate db PROD_DB
10 | 
11 | 	$ db2stop
12 | 
13 | 
14 | 	To start:
15 | 	startrpnode <standby node> (as root)
16 | 	db2start
17 | 	db2 activate db PROD_DB
18 | 	(wait)
19 | 	db2haicu
20 | 
21 | Q: determine current primary node
22 | A: select * FROM TABLE(SYSPROC.ENV_GET_SYS_INFO()) T;
23 | 
24 | 
25 | 
26 | 
27 | 
28 | 
29 | 
30 | If haicu goes nuts:
31 | reboot all servers with runlevel 1
32 | start db2 and hadr manually
33 | for all servers ONE BY ONE reboot with runlevel 3 and wait for sane hadr status
34 | 
35 | 
36 | 
37 | Q:
38 | A: Warning: Cannot uninstall IBM Tivoli System Automation for Multiplatforms (SA MP) when the node is not in "Offline" state or "IW" mode. Please use "stoprpnode" or "stoprpdomain" to change the node state to "Offline".
39 | 
40 | 
41 | 
42 | Q: uninstall db2haicu
43 | A: db2haicu -delete
44 | 
45 | Q: ?
46 | A:
47 | 
48 | Added:
49 |     ps -f $$ $PPID | logger -p notice -t $0
50 | in /usr/sbin/rsct/sapolicies/db2/*_start.ksh
51 | 
52 | 
53 | May 22 12:38:40 oktest-prod-db-2 hatsd[1552]: hadms: Using SETTIMEOUT to set timeout to 16 succeeded.
54 | May 22 12:38:40 oktest-prod-db-2 /usr/sbin/rsct/sapolicies/db2/db2V105_start.ksh: UID        PID  PPID  C STIME TTY      STAT   TIME CMD
55 | May 22 12:38:40 oktest-prod-db-2 /usr/sbin/rsct/sapolicies/db2/db2V105_start.ksh: root      2232   947  1 12:38 ?        Sl     0:00 /usr/sbin/rsct/bin/IBM.GblResRMd
56 | May 22 12:38:40 oktest-prod-db-2 /usr/sbin/rsct/sapolicies/db2/db2V105_start.ksh: root      2358  2232  0 12:38 ?        Ss     0:00 /bin/ksh -p /usr/sbin/rsct/sapolicies/db2/db2V105_start.ksh db2inst1 0
57 | May 22 12:38:40 oktest-prod-db-2 db2V105_start.ksh[2358]: Entered /usr/sbin/rsct/sapolicies/db2/db2V105_start.ksh, db2inst1, 0
58 | 
59 | root       947     1  0 12:38 ?        Ss     0:00 /sbin/srcmstr
60 | 
61 | 
62 | 
63 | Q: HADR shuts down due to validation rejection
64 | A: possible solution: drop standby db before restoring
65 | 
66 | Q: http://www.ibm.com/support/knowledgecenter/SSEPGG_10.5.0/com.ibm.db2.luw.messages.sql.doc/doc/msql01776n.html
67 | 
68 | 
69 | Q: SQL1768N  Unable to start HADR. Reason code = "4".
70 | A: Invalid configuration parameter HADR_LOCAL_HOST.
71 | 
72 | Q: SQL1770N  Takeover HADR cannot complete. Reason code = "4".
73 | A: already primary
74 | 
75 | Q: SQL1770N  Takeover HADR cannot complete. Reason code = "10".
76 | A: ?
77 | 
78 | Q: SQL1769N  Stop HADR cannot complete. Reason code = "2".
79 | A: The user should deactivate the database and then reissue the command.
80 | 
81 | Q: SQL1767N  Start HADR cannot complete. Reason code = "2".
82 | A: START HADR AS PRIMARY cannot be issued on an HADR standby database.
83 | 
84 | Q: SQL1776N  The command cannot be issued on an HADR database. Reason code = "6".
85 | A: This database is an old primary database. It cannot be started because the standby has become the new primary through forced takeover.
86 | 


--------------------------------------------------------------------------------
/prog/ejb/interceptor/build.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <!-- You may freely edit this file. See commented blocks below for -->
 3 | <!-- some examples of how to customize the build. -->
 4 | <!-- (If you delete it and reopen the project it will be recreated.) -->
 5 | <!-- By default, only the Clean and Build commands use this build script. -->
 6 | <!-- Commands such as Run, Debug, and Test only use this build script if -->
 7 | <!-- the Compile on Save feature is turned off for the project. -->
 8 | <!-- You can turn off the Compile on Save (or Deploy on Save) setting -->
 9 | <!-- in the project's Project Properties dialog box.-->
10 | <project name="EJBModule1" default="default" basedir="." xmlns:ejbjarproject="http://www.netbeans.org/ns/j2ee-ejbjarproject/3">
11 |     <description>Builds, tests, and runs the project EJBModule1.</description>
12 |     <import file="nbproject/build-impl.xml"/>
13 |     <!--
14 | 
15 |     There exist several targets which are by default empty and which can be 
16 |     used for execution of your tasks. These targets are usually executed 
17 |     before and after some main targets. They are: 
18 | 
19 |       -pre-init:                 called before initialization of project properties
20 |       -post-init:                called after initialization of project properties
21 |       -pre-compile:              called before javac compilation
22 |       -post-compile:             called after javac compilation
23 |       -pre-compile-single:       called before javac compilation of single file
24 |       -post-compile-single:      called after javac compilation of single file
25 |       -pre-dist:                 called before archive building
26 |       -post-dist:                called after archive building
27 |       -post-clean:               called after cleaning build products
28 |       -pre-run-deploy:           called before deploying
29 |       -post-run-deploy:          called after deploying
30 | 
31 |     (Targets beginning with '-' are not intended to be called on their own.)
32 | 
33 |     Example of pluging an obfuscator after the compilation could look like 
34 | 
35 |         <target name="-post-compile">
36 |             <obfuscate>
37 |                 <fileset dir="${build.classes.dir}"/>
38 |             </obfuscate>
39 |         </target>
40 | 
41 |     For list of available properties check the imported 
42 |     nbproject/build-impl.xml file. 
43 | 
44 | 
45 |     Other way how to customize the build is by overriding existing main targets.
46 |     The target of interest are: 
47 | 
48 |       init-macrodef-javac:    defines macro for javac compilation
49 |       init-macrodef-debug:    defines macro for class debugging
50 |       do-dist:                archive building
51 |       run:                    execution of project 
52 |       javadoc-build:          javadoc generation 
53 | 
54 |     Example of overriding the target for project execution could look like 
55 | 
56 |         <target name="run" depends="<PROJNAME>-impl.jar">
57 |             <exec dir="bin" executable="launcher.exe">
58 |                 <arg file="${dist.jar}"/>
59 |             </exec>
60 |         </target>
61 | 
62 |     Notice that overridden target depends on jar target and not only on 
63 |     compile target as regular run target does. Again, for list of available 
64 |     properties which you can use check the target you are overriding in 
65 |     nbproject/build-impl.xml file. 
66 | 
67 |     -->
68 | </project>
69 | 


--------------------------------------------------------------------------------
/prog/java/MyParentLastClassloader.java:
--------------------------------------------------------------------------------
  1 | package org.foo;
  2 | 
  3 | import java.io.IOException;
  4 | import java.net.URL;
  5 | import java.net.URLClassLoader;
  6 | import java.util.Enumeration;
  7 | import java.util.NoSuchElementException;
  8 | 
  9 | public class MyParentLastClassloader extends URLClassLoader {
 10 | 
 11 |     private final String dbgName;
 12 | 
 13 |     public MyParentLastClassloader(URL[] urls, ClassLoader parent, String name) {
 14 |         super(urls, parent);
 15 |         this.dbgName = name;
 16 |     }
 17 | 
 18 |     @Override
 19 |     public String toString() {
 20 |         return getDbgName();
 21 |     }
 22 | 
 23 |     @Override
 24 |     protected Class<?> loadClass(String name, boolean resolve) throws ClassNotFoundException {
 25 | 
 26 |         synchronized (getClassLoadingLock(name)) {
 27 |             // First, check if the class has already been loaded
 28 |             Class<?> c = findLoadedClass(name);
 29 |             if (c == null) {
 30 |                 try {
 31 |                     c = findClass(name);
 32 |                 } catch (ClassNotFoundException e) {
 33 |                     // ignore
 34 |                 }
 35 | 
 36 |                 if (c == null) {
 37 |                     // If still not found
 38 |                     ClassLoader parent = getParent();
 39 |                     if (parent == null) {
 40 |                         parent = BOOTSTRAP_CL;
 41 |                     }
 42 |                     c = parent.loadClass(name);
 43 |                 }
 44 |             }
 45 |             if (resolve) {
 46 |                 resolveClass(c);
 47 |             }
 48 |             return c;
 49 |         }
 50 |     }
 51 | 
 52 |     @Override
 53 |     public URL getResource(final String name) {
 54 |         URL url;
 55 |         url = findResource(name);
 56 |         if (url == null) {
 57 |             ClassLoader parent = getParent();
 58 |             if (parent == null) {
 59 |                 parent = BOOTSTRAP_CL;
 60 |             }
 61 |             url = parent.getResource(name);
 62 |         }
 63 |         return url;
 64 |     }
 65 | 
 66 |     @Override
 67 |     public Enumeration<URL> getResources(final String name) throws IOException {
 68 |         ClassLoader parent = getParent();
 69 |         if (parent == null) {
 70 |             parent = BOOTSTRAP_CL;
 71 |         }
 72 | 
 73 |         final Enumeration<URL> tmp0 = findResources(name);
 74 |         final Enumeration<URL> tmp1 = parent.getResources(name);
 75 | 
 76 |         return new MyEnumeration(tmp0, tmp1);
 77 |     }
 78 | 
 79 |     private static final ClassLoader BOOTSTRAP_CL = new URLClassLoader(new URL[0], null);
 80 | 
 81 |     public String getDbgName() {
 82 |         return dbgName;
 83 |     }
 84 | 
 85 | }
 86 | 
 87 | class MyEnumeration implements Enumeration<URL> {
 88 | 
 89 |     @SafeVarargs
 90 |     MyEnumeration(Enumeration<URL>... enus) {
 91 |         this.enus = enus;
 92 |     }
 93 | 
 94 |     int index;
 95 | 
 96 |     Enumeration<URL>[] enus;
 97 | 
 98 |     @Override
 99 |     public boolean hasMoreElements() {
100 |         for (; index < enus.length; index++) {
101 |             if (enus[index] != null && enus[index].hasMoreElements()) {
102 |                 return true;
103 |             }
104 |         }
105 |         return false;
106 |     }
107 | 
108 |     @Override
109 |     public URL nextElement() {
110 |         hasMoreElements();
111 |         if (index >= enus.length) {
112 |             throw new NoSuchElementException();
113 |         }
114 |         return enus[index].nextElement();
115 |     }
116 | }
117 | 


--------------------------------------------------------------------------------
/unix/linux/rhel/partextend:
--------------------------------------------------------------------------------
  1 | #!/bin/bash
  2 | set -e
  3 | set -o pipefail
  4 | 
  5 | partdev=${1:?}
  6 | 
  7 | partdev=$(readlink -f -- "$partdev")
  8 | echo "Canonical partition: ${partdev}"
  9 | 
 10 | if false; then
 11 | 
 12 |   # TODO: lvm/
 13 |   sysdev=$(readlink -- "/sys/class/block/${partdev##*/}")
 14 |   sysdev=${sysdev%/*}
 15 |   sysdev=${sysdev##*/}
 16 | 
 17 |   dev=/dev/$sysdev
 18 | else
 19 |   # keep only the 1st line when a partition has its own children, e.g. is an mdraid member
 20 |   if dev=$(lsblk -ndo pkname -- "$partdev"); then
 21 |     dev=/dev/${dev}
 22 |   else
 23 |     dev=${partdev%?}
 24 |   fi
 25 | fi
 26 | 
 27 | echo "Parent device: $dev"
 28 | echo
 29 | 
 30 | LF='
 31 | '
 32 | 
 33 | LC_ALL=C
 34 | 
 35 | follower_start=`blockdev --getsize "$dev"` || {
 36 |   # image file?
 37 |   follower_start=$(stat -c%s test.img)
 38 |   follower_start=$((follower_start / 512))
 39 | }
 40 | 
 41 | exec 3<&0
 42 | 
 43 | sfdisk -d "$dev" | tac | {
 44 | 
 45 |     newdump=
 46 |     newsize=
 47 | 
 48 |     echo "### current table (in reverse order): ###"
 49 | 
 50 |     body=x
 51 | 
 52 |     while IFS= && read -r line; do
 53 |         printf '%s\n' "$line"
 54 |         if [ -z "$line" ]; then
 55 |           # end of partitions
 56 |           body=
 57 |         fi
 58 | 
 59 |         if [ "$body" ]; then
 60 |           IFS=':,'
 61 |           start=unknown
 62 |           size=unknown
 63 |           linedev=
 64 |           for nameval in $line; do
 65 |               if [ -z "$linedev" ]; then
 66 |                 IFS=' '
 67 |                 for linedev in $nameval; do : ; done
 68 |                 continue # for nameval in $line
 69 |               fi
 70 |               IFS=' ='
 71 |               varname=
 72 |               for nameorval in $nameval; do
 73 |                   if [ "$varname" ]; then
 74 |                       eval "$varname=\$nameorval"
 75 |                   else
 76 |                       case $nameorval in
 77 |                       'size'|'start')
 78 |                           varname=$nameorval
 79 |                           ;;
 80 |                       *)
 81 |                           break
 82 |                           ;;
 83 |                       esac
 84 |                   fi
 85 |               done
 86 |           done
 87 | 
 88 |           if [ x"$linedev" = x"$partdev" ]; then
 89 |             newsize=$((follower_start - start))
 90 |             if [ $newsize -eq $size ]; then
 91 |               newsize=
 92 |             else
 93 |               suf=${line#*size=}
 94 |               suf=${suf#*,}
 95 |               pref=${line%size=*}
 96 |               line="${pref}size=${newsize},${suf}"
 97 |             fi
 98 |           fi
 99 |           follower_start=$start
100 |         fi # body
101 | 
102 |         newdump=${line}${LF}${newdump}
103 |     done # read -r line
104 | 
105 |     echo
106 | 
107 |     if [ -z "$newsize" ]; then
108 |       echo "Nothing to do"
109 |       exit
110 |     fi
111 | 
112 |     exec 0<&3
113 | 
114 |     echo ""
115 |     echo ""
116 |     echo "### new table: ###"
117 | 
118 |     echo "cat <<'EOF' | sfdisk $SFDISK_FLAGS '$dev'"
119 |     printf '%s' "$newdump"
120 |     echo EOF
121 | 
122 |     while read -p "is this ok? [yes,no] " s; do
123 |         if [ "no" = "$s" ]; then
124 |             exit
125 |         fi
126 |         if [ "yes" = "$s" ]; then
127 |             printf '%s' "$newdump" | sfdisk $SFDISK_FLAGS "$dev" || {
128 |               >&2 echo "sfdisk failed. Set SFDISK_FLAGS env. var. and retry this script"
129 |               exit 1
130 |             }
131 |             break
132 |         fi
133 |     done
134 | }
135 | 


--------------------------------------------------------------------------------
/prog/mysql/mysql-faq.txt:
--------------------------------------------------------------------------------
 1 | mysql -u root -t -h localhost -P 3306 --password=password
 2 | mysql -u root -t -h localhost -P 3306 --password
 3 | 
 4 | create database cxpstats;
 5 | create user 'cxpstats'@'%' identified by 'cxpstats';
 6 | grant ALL PRIVILEGES ON cxpstats.* TO 'cxpstats'@'%' WITH GRANT OPTION;
 7 | grant super on *.* to 'cxpstats'@'%';
 8 | 
 9 | mysql -u cxpstats -t -h localhost -P 3306 --password=cxpstats cxpstats
10 | 
11 | 
12 | Q: The server time zone value ... is unrecognized or represents more than one time zone
13 | A:
14 | - serverTimezone=Europe/Moscow
15 | - Or use mysql-connector-java-5
16 | 
17 | 
18 | Q: LOCK TABLES ... Table doesn't exist
19 | A: 
20 | 
21 | Q: CentOS 7
22 | A:
23 |   yum install mariadb-server
24 |   systemctl enable mariadb.service
25 |   systemctl start mariadb.service
26 | 
27 | Q: passwordless root login for Unix user root
28 | A:
29 |   !!! Having passworless TCP login on 127.0.0.1 is unsafe, because any local user can connect to it
30 | 
31 |   !!! The account "root@127.0.0.1" is never really used.
32 |   !!! Even with --proto=TCP --host=127.0.0.1 you are logged as root@localhost
33 | 
34 |   !!! When using --proto=SOCKET, you are always logged as %@localhost
35 | 
36 |   !!! This means that for the same username you can't have a passwordless unix
37 |   !!! socket login and still be able to use a password when using:
38 |   !!! --proto=TCP --host=127.0.0.1
39 | 
40 |   !!! Even worse, with a dedicated unix socket user nothing prevented local
41 |   !!! clients from using TCP with this user.
42 |   !!! Only the recent versions support the "IDENTIFIED VIA unix_socket"
43 |   !!! restriction.
44 | 
45 |   !!! However, users with enabled unix_socket lose the ability to fallback to using a password
46 |   !!! That is, if you enable unix_socket for root@localhost, other Unix users
47 |   !!! won't be able to connect as root unless they use a non-loopback TCP address
48 |   !!! You can only login as a unix_socket user if your Unix user matches the mysql user
49 | 
50 |   To enable this plugin, do:
51 |     INSTALL PLUGIN unix_socket SONAME 'auth_socket';
52 |   or
53 |     /etc/my.cnf.d/50-socket.cnf
54 |       [mysqld]
55 |       plugin-load = auth_socket.so
56 |     and restart
57 | 
58 | 
59 |   To alter an existing user, do:
60 |     -- The ALTER USER syntax is poorly documented; this works:
61 |     GRANT ... TO 'socketuser'@'localhost' IDENTIFIED VIA unix_socket;
62 |   or 
63 |     -- untested
64 |     update mysql.user set plugin='unix_socket' where user='socketuser' and Host='localhost';
65 |     FLUSH PRIVILEGES;
66 | 
67 |   Despite the docs, @'localhost' is required.
68 | 
69 |   Setting permissions on the Unix socket won't improve security, because if
70 |   unix_socket is disabled you can always connect as user@localhost using TCP.
71 |   And if it's enabled you can only connect as self.
72 | 
73 |   In older versions where the unix_socket plugin is unsupported nothing beats a
74 |   cleartext password in /root/.my.cnf
75 |   Just make sure it's different from the 'root'@'hostname' password
76 | 
77 | Q: change password
78 | A: SET PASSWORD = PASSWORD('new_pass');
79 | 
80 | Q: change column type
81 | A: alter table T MODIFY column C timestamp;
82 | 
83 | Q: rename column
84 | A: 
85 |   5.6: alter table gnss_handset_points CHANGE COLUMN PHONE_IDSG PHONE_ID varchar(255);
86 |   8.0: alter table gnss_handset_points RENAME COLUMN PHONE_IDSG TO PHONE_ID;
87 | 
88 | Q: server version
89 | A: select version()
90 | 
91 | Q: slow WHERE IN SELECT / WHERE EXISTS
92 | A: Unlike other RDBMS, MySQL never uses index of a FROM table to lookup results of a WHERE IN SELECT / WHERE EXISTS subquery
93 |   Use join where possible.
94 | 


--------------------------------------------------------------------------------
/prog/mendix/mendix-generator-faq.txt:
--------------------------------------------------------------------------------
  1 | Q: npm ERR! gyp ERR! stack Error: spawn C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\MSBuild\15.0\Bin\MSBuild.exe ENOENT
  2 | A: 2019 might be not supported. But you can try:
  3 |          npm config set msbuild_path "C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\MSBuild\Current\Bin\MSBuild.exe"
  4 | 
  5 | Q:
  6 |   With 2019:
  7 |   MSBuild.exe` failed with exit code: 1
  8 | A:
  9 |   Install 2017 and switch
 10 |   See https://stackoverflow.com/questions/57795314/are-visual-studio-2017-build-tools-still-available-for-download
 11 |   See https://github.com/nodejs/node-gyp#on-windows
 12 | 
 13 |   https://download.visualstudio.microsoft.com/download/pr/3e542575-929e-4297-b6c6-bef34d0ee648/639c868e1219c651793aff537a1d3b77/vs_buildtools.exe
 14 |   md5sum 280760e13ec19fda455ab4f6ec13b285
 15 |   Visual Studio Build Tools 2017 15.9.43
 16 | 
 17 |   # if more than one version installed, do:
 18 |   npm config delete msbuild_path
 19 |   npm config set msvs_version 2017
 20 | 
 21 | Q: build an .mpk widget package
 22 | A: npm run build
 23 | 
 24 | ??? npm install -g windows-build-tools
 25 | ??? Microsoft Visual Studio 2019 BuildTools
 26 | 
 27 | 
 28 | node-v16.13.2-x64.msi
 29 | 
 30 | 
 31 | 
 32 | npm config set msvs_version 2017
 33 | 
 34 | npm config get msvs_version
 35 | #npm config delete msvs_version
 36 | 
 37 | # the following doesn't work:
 38 | #npm config set msvs_version 2019
 39 | #KeyError: '2019'
 40 | 
 41 | 
 42 | python-2.7.16.amd64.msi
 43 | 
 44 | mklink /H C:\Python27\python2.exe C:\Python27\python.exe
 45 | 
 46 | # 
 47 | npm install
 48 | npm start
 49 | 
 50 | 
 51 | 
 52 | 
 53 | 
 54 | 
 55 | 
 56 | VSCodeUserSetup-x64-1.63.2.exe
 57 | 
 58 | 
 59 | 
 60 | 
 61 | ## Install
 62 | > npm install -g yo @mendix/generator-widget
 63 | ...
 64 | Everything looks all right!
 65 | + yo@3.1.1
 66 | + @mendix/generator-widget@8.14.0
 67 | 
 68 | 
 69 | ## Create new widget in current folder
 70 | #> yo @mendix/widget [widget-folder-name]
 71 | # (generator 2x instructs:
 72 | #> yo mendix
 73 | # but this does not work in generator 8x)
 74 | 
 75 | > yo @mendix/widget enter-to-action
 76 | ...
 77 | ? What is the name of your widget? EnterToAction
 78 | ? Mendix project path C:\Users\il\Documents\Mendix\PluggableWidgetMicroLearning
 79 | ? Which type of widget are you developing? For web and hybrid mobile apps
 80 | ? Which template do you want to use for the widget? Empty widget (recommended for more experienced developers)
 81 | ? Add unit tests for the widget ? (recommended for Full Boilerplate) No
 82 | ? Add End-to-end tests for the widget ? (recommended for Full Boilerplate) No
 83 | 
 84 | 
 85 | ## Add
 86 | # Refresh in Mendix Studio Pro (F4)
 87 | # Right click a container, "Add widget", widget name: Enter To Action
 88 | 
 89 | ## Open in Visual Studio Code
 90 | > code .\enter-to-action\
 91 | 
 92 | 
 93 | 
 94 | 
 95 | project path goes to package.json
 96 | Description goes to src/EnterToAction.xml
 97 | 
 98 | Widget properties are defined in src/EnterToAction.xml
 99 | See https://docs.mendix.com/apidocs-mxsdk/apidocs/property-types-pluggable-widgets-8#1-introduction
100 | 
101 | 
102 | 
103 | 
104 | Widget properties are accessible via component's this.props dictionary
105 | 
106 | Main component class defined in src/EnterToAction.jsx
107 | Subcomponents defined in src/components/*.jsx
108 | 
109 | 
110 | ## Build widget .mpk
111 | > cd enter-to-action
112 | > npm run build
113 | 
114 | 
115 | # If only javascript has changed, but not the widget definition, then it's enough to hard refresh the browser page after npm run build without restarting the app.
116 | 
117 | 
118 | javascript APIs:
119 | https://docs.mendix.com/apidocs-mxsdk/apidocs/client-apis-for-pluggable-widgets-8


--------------------------------------------------------------------------------
/unix/linux/il/fs-default/etc/ssh/sshd_config:
--------------------------------------------------------------------------------
  1 | #	$OpenBSD: sshd_config,v 1.103 2018/04/09 20:41:22 tj Exp $
  2 | 
  3 | # This is the sshd server system-wide configuration file.  See
  4 | # sshd_config(5) for more information.
  5 | 
  6 | # This sshd was compiled with PATH=/usr/local/sbin:/usr/local/bin:/usr/bin
  7 | 
  8 | # The strategy used for options in the default sshd_config shipped with
  9 | # OpenSSH is to specify options with their default value where
 10 | # possible, but leave them commented.  Uncommented options override the
 11 | # default value.
 12 | 
 13 | #Port 22
 14 | #AddressFamily any
 15 | #ListenAddress 0.0.0.0
 16 | #ListenAddress ::
 17 | 
 18 | #HostKey /etc/ssh/ssh_host_rsa_key
 19 | #HostKey /etc/ssh/ssh_host_ecdsa_key
 20 | #HostKey /etc/ssh/ssh_host_ed25519_key
 21 | 
 22 | # Ciphers and keying
 23 | #RekeyLimit default none
 24 | 
 25 | # Logging
 26 | #SyslogFacility AUTH
 27 | #LogLevel INFO
 28 | 
 29 | # Authentication:
 30 | 
 31 | #LoginGraceTime 2m
 32 | #PermitRootLogin prohibit-password
 33 | #StrictModes yes
 34 | #MaxAuthTries 6
 35 | #MaxSessions 10
 36 | 
 37 | #PubkeyAuthentication yes
 38 | 
 39 | # The default is to check both .ssh/authorized_keys and .ssh/authorized_keys2
 40 | # but this is overridden so installations will only check .ssh/authorized_keys
 41 | AuthorizedKeysFile	.ssh/authorized_keys
 42 | 
 43 | #AuthorizedPrincipalsFile none
 44 | 
 45 | #AuthorizedKeysCommand none
 46 | #AuthorizedKeysCommandUser nobody
 47 | 
 48 | # For this to work you will also need host keys in /etc/ssh/ssh_known_hosts
 49 | #HostbasedAuthentication no
 50 | # Change to yes if you don't trust ~/.ssh/known_hosts for
 51 | # HostbasedAuthentication
 52 | #IgnoreUserKnownHosts no
 53 | # Don't read the user's ~/.rhosts and ~/.shosts files
 54 | #IgnoreRhosts yes
 55 | 
 56 | # To disable tunneled clear text passwords, change to no here!
 57 | #PasswordAuthentication yes
 58 | #PermitEmptyPasswords no
 59 | 
 60 | # Change to no to disable s/key passwords
 61 | KbdInteractiveAuthentication no
 62 | 
 63 | # Kerberos options
 64 | #KerberosAuthentication no
 65 | #KerberosOrLocalPasswd yes
 66 | #KerberosTicketCleanup yes
 67 | #KerberosGetAFSToken no
 68 | 
 69 | # GSSAPI options
 70 | #GSSAPIAuthentication no
 71 | #GSSAPICleanupCredentials yes
 72 | 
 73 | # Set this to 'yes' to enable PAM authentication, account processing,
 74 | # and session processing. If this is enabled, PAM authentication will
 75 | # be allowed through the KbdInteractiveAuthentication and
 76 | # PasswordAuthentication.  Depending on your PAM configuration,
 77 | # PAM authentication via KbdInteractiveAuthentication may bypass
 78 | # the setting of "PermitRootLogin without-password".
 79 | # If you just want the PAM account and session checks to run without
 80 | # PAM authentication, then enable this but set PasswordAuthentication
 81 | # and KbdInteractiveAuthentication to 'no'.
 82 | UsePAM yes
 83 | 
 84 | #AllowAgentForwarding yes
 85 | #AllowTcpForwarding yes
 86 | #GatewayPorts no
 87 | X11Forwarding yes
 88 | #X11DisplayOffset 10
 89 | #X11UseLocalhost yes
 90 | #PermitTTY yes
 91 | PrintMotd no # pam does that
 92 | #PrintLastLog yes
 93 | #TCPKeepAlive yes
 94 | #PermitUserEnvironment no
 95 | #Compression delayed
 96 | #ClientAliveInterval 0
 97 | #ClientAliveCountMax 3
 98 | #UseDNS no
 99 | #PidFile /run/sshd.pid
100 | #MaxStartups 10:30:100
101 | #PermitTunnel no
102 | #ChrootDirectory none
103 | #VersionAddendum none
104 | 
105 | # no default banner path
106 | #Banner none
107 | 
108 | # override default of no subsystems
109 | Subsystem	sftp	/usr/lib/ssh/sftp-server
110 | 
111 | # Example of overriding settings on a per-user basis
112 | #Match User anoncvs
113 | #	X11Forwarding no
114 | #	AllowTcpForwarding no
115 | #	PermitTTY no
116 | #	ForceCommand cvs server
117 | 


--------------------------------------------------------------------------------
/prog/openssl/openssl-faq.txt:
--------------------------------------------------------------------------------
  1 | # create a self-signed certificate
  2 | openssl req -newkey rsa:2048 -nodes -keyout cert.key.pem -x509 -days 365 -out cert.pem
  3 | 
  4 | # Export cert only to p12
  5 | openssl pkcs12 -in cert.pem -export -nokeys -out cert.pem.p12
  6 | 
  7 | 
  8 | # convert from openssh public key format to BEGIN RSA PUBLIC KEY
  9 | ssh-keygen -e -m PEM -f ~/.ssh/id_rsa.pub >~/.ssh/id_rsa.pub.pem
 10 | 
 11 | # convert from BEGIN RSA PUBLIC KEY to ssl BEGIN PUBLIC KEY
 12 | openssl rsa -in ~/.ssh/id_rsa.pub.pem -RSAPublicKey_in -pubout > ~/.ssh/ssl.pub.pem
 13 | 
 14 | 
 15 | Q: decrypt key
 16 | A: openssl rsa -in encrypted.key [-out <decrypted_private.key>]
 17 | 
 18 | Q: Certificate, Version=3
 19 | A: -inform DER
 20 | 
 21 | Q: Dump a certificate
 22 | A: 
 23 |   openssl x509 -in certificate.crt -text -noout
 24 |   openssl rsa -in postgresqlshb3fmrh.key -text -noout
 25 |   openssl pkcs8 -in postgresqlshb3fmrh.pk8 -inform DER -nocrypt | openssl rsa -text -noout
 26 | 
 27 | Q: Dump a certificate from a server
 28 | A:
 29 |   s_client -showcerts -verify 5 -connect host:443 < /dev/null
 30 |  
 31 | Q: Create a custom Certification Authority (CA) to trust on local host and issue web site certificates 
 32 | A:
 33 |   
 34 |   # prevent treating forward slash as start of an msys path
 35 |   export MSYS2_ARG_CONV_EXCL="*"
 36 | 
 37 |   mkdir ~/fakesite
 38 |   cd ~/fakesite
 39 | 
 40 |   # index.txt must pre-exist
 41 |   touch index.txt
 42 |   
 43 |   # create minimal config
 44 | cat <<'EOFCONF' >tmp.cnf
 45 | [ ca ]
 46 | default_ca      = CA_default            # The default ca section
 47 | [ CA_default ]
 48 | dir             = .           # Where everything is kept
 49 | database        = $dir/index.txt        # database index file.
 50 | serial          = $dir/serial           # The current serial number
 51 | [ policy_any ]
 52 | countryName		= optional
 53 | stateOrProvinceName	= optional
 54 | localityName		= optional
 55 | organizationName	= optional
 56 | organizationalUnitName	= optional
 57 | commonName		= supplied
 58 | emailAddress		= optional
 59 | EOFCONF
 60 | 
 61 |   # create self-signed certificate  
 62 |   openssl req -newkey rsa:3072 -sha256 -days 3651 -nodes -x509 -subj "/C=US/O=AAATrusted, Inc/CN=AAATrusted CA" -keyout root.key -out root.crt
 63 |   # dump as text
 64 |   openssl x509 -in root.crt -text -noout -text >root.crt.txt
 65 |   # export as p12 (with empty password)
 66 |   openssl pkcs12 -in root.crt -export -nokeys -passout "pass:" -out root.p12
 67 | 
 68 | 
 69 | Q: Issue a wildcard web site certificate as a custom CA
 70 | A:
 71 |   
 72 |   # prevent treating forward slash as start of an msys path
 73 |   export MSYS2_ARG_CONV_EXCL="*"
 74 | 
 75 |   cd ~/fakesite
 76 | 
 77 |   # 
 78 |   FILENM="acme.com"
 79 |   # wildcard CN
 80 |   NAME="*.$FILENM"
 81 | 
 82 |   # create certificate request  
 83 |   openssl req -newkey rsa:3072 -sha256 -nodes -subj "/C=US/O=AAATrusted, Inc/CN=$NAME" -keyout "$FILENM.key" -out "$FILENM.csr"
 84 | 
 85 | # Create a config file for the extensions (Chrome 58+)
 86 | >extensions.ext cat <<-EOF
 87 | authorityKeyIdentifier=keyid,issuer
 88 | basicConstraints=CA:FALSE
 89 | keyUsage = digitalSignature, nonRepudiation, keyEncipherment, dataEncipherment
 90 | subjectAltName = @alt_names
 91 | [alt_names]
 92 | DNS.1 = $NAME # Be sure to include the domain name here because Common Name is not so commonly honoured by itself
 93 | EOF
 94 | 
 95 |   # sign  
 96 |   yes | openssl ca -days 3650 -cert root.crt -keyfile root.key -in "$FILENM.csr" -out "$FILENM.crt" -outdir . -config ./tmp.cnf -md sha256 -policy policy_any -create_serial -extfile extensions.ext -notext
 97 |   # dump as text
 98 |   openssl x509 -in "$FILENM.crt" -text -noout -text >"$FILENM.crt.txt"
 99 | 
100 |   # create a bundle for STunnel
101 |   cat "$FILENM.crt" "$FILENM.key" root.crt >"$FILENM-bundle.pem"
102 | 


--------------------------------------------------------------------------------
/unix/linux/il/fs/etc/ssh/sshd_config:
--------------------------------------------------------------------------------
  1 | #	$OpenBSD: sshd_config,v 1.103 2018/04/09 20:41:22 tj Exp $
  2 | 
  3 | # This is the sshd server system-wide configuration file.  See
  4 | # sshd_config(5) for more information.
  5 | 
  6 | # This sshd was compiled with PATH=/usr/local/sbin:/usr/local/bin:/usr/bin
  7 | 
  8 | # The strategy used for options in the default sshd_config shipped with
  9 | # OpenSSH is to specify options with their default value where
 10 | # possible, but leave them commented.  Uncommented options override the
 11 | # default value.
 12 | 
 13 | #Port 22
 14 | #AddressFamily any
 15 | #ListenAddress 0.0.0.0
 16 | #ListenAddress ::
 17 | 
 18 | #HostKey /etc/ssh/ssh_host_rsa_key
 19 | #HostKey /etc/ssh/ssh_host_ecdsa_key
 20 | #HostKey /etc/ssh/ssh_host_ed25519_key
 21 | 
 22 | # Ciphers and keying
 23 | #RekeyLimit default none
 24 | 
 25 | # Logging
 26 | #SyslogFacility AUTH
 27 | #LogLevel INFO
 28 | 
 29 | # Authentication:
 30 | 
 31 | #LoginGraceTime 2m
 32 | #PermitRootLogin prohibit-password
 33 | #StrictModes yes
 34 | #MaxAuthTries 6
 35 | #MaxSessions 10
 36 | 
 37 | #PubkeyAuthentication yes
 38 | 
 39 | # The default is to check both .ssh/authorized_keys and .ssh/authorized_keys2
 40 | # but this is overridden so installations will only check .ssh/authorized_keys
 41 | AuthorizedKeysFile	.ssh/authorized_keys
 42 | 
 43 | #AuthorizedPrincipalsFile none
 44 | 
 45 | #AuthorizedKeysCommand none
 46 | #AuthorizedKeysCommandUser nobody
 47 | 
 48 | # For this to work you will also need host keys in /etc/ssh/ssh_known_hosts
 49 | #HostbasedAuthentication no
 50 | # Change to yes if you don't trust ~/.ssh/known_hosts for
 51 | # HostbasedAuthentication
 52 | #IgnoreUserKnownHosts no
 53 | # Don't read the user's ~/.rhosts and ~/.shosts files
 54 | #IgnoreRhosts yes
 55 | 
 56 | # To disable tunneled clear text passwords, change to no here!
 57 | #PasswordAuthentication yes
 58 | #PermitEmptyPasswords no
 59 | 
 60 | # Change to no to disable s/key passwords
 61 | KbdInteractiveAuthentication no
 62 | 
 63 | # Kerberos options
 64 | #KerberosAuthentication no
 65 | #KerberosOrLocalPasswd yes
 66 | #KerberosTicketCleanup yes
 67 | #KerberosGetAFSToken no
 68 | 
 69 | # GSSAPI options
 70 | #GSSAPIAuthentication no
 71 | #GSSAPICleanupCredentials yes
 72 | 
 73 | # Set this to 'yes' to enable PAM authentication, account processing,
 74 | # and session processing. If this is enabled, PAM authentication will
 75 | # be allowed through the KbdInteractiveAuthentication and
 76 | # PasswordAuthentication.  Depending on your PAM configuration,
 77 | # PAM authentication via KbdInteractiveAuthentication may bypass
 78 | # the setting of "PermitRootLogin without-password".
 79 | # If you just want the PAM account and session checks to run without
 80 | # PAM authentication, then enable this but set PasswordAuthentication
 81 | # and KbdInteractiveAuthentication to 'no'.
 82 | UsePAM yes
 83 | 
 84 | #AllowAgentForwarding yes
 85 | #AllowTcpForwarding yes
 86 | #GatewayPorts no
 87 | X11Forwarding yes
 88 | #X11DisplayOffset 10
 89 | #X11UseLocalhost yes
 90 | #PermitTTY yes
 91 | PrintMotd no # pam does that
 92 | #PrintLastLog yes
 93 | #TCPKeepAlive yes
 94 | #PermitUserEnvironment no
 95 | #Compression delayed
 96 | #ClientAliveInterval 0
 97 | #ClientAliveCountMax 3
 98 | #UseDNS no
 99 | #PidFile /run/sshd.pid
100 | #MaxStartups 10:30:100
101 | #PermitTunnel no
102 | #ChrootDirectory none
103 | #VersionAddendum none
104 | 
105 | # no default banner path
106 | #Banner none
107 | 
108 | # override default of no subsystems
109 | Subsystem	sftp	/usr/lib/ssh/sftp-server
110 | 
111 | # Example of overriding settings on a per-user basis
112 | #Match User anoncvs
113 | #	X11Forwarding no
114 | #	AllowTcpForwarding no
115 | #	PermitTTY no
116 | #	ForceCommand cvs server
117 | 
118 | # for Totalcmd sftp plugin with embedded putty 0.67
119 | PubkeyAcceptedAlgorithms +ssh-rsa
120 | 


--------------------------------------------------------------------------------
/prog/java/jaxb/StAXUnmarshalAny.txt:
--------------------------------------------------------------------------------
  1 | package com.common.config;
  2 | 
  3 | import java.io.StringReader;
  4 | 
  5 | import javax.xml.bind.JAXBContext;
  6 | import javax.xml.bind.JAXBElement;
  7 | import javax.xml.bind.UnmarshalException;
  8 | import javax.xml.bind.Unmarshaller;
  9 | import javax.xml.bind.annotation.XmlAccessType;
 10 | import javax.xml.bind.annotation.XmlAccessorType;
 11 | import javax.xml.bind.annotation.XmlRootElement;
 12 | import javax.xml.stream.XMLInputFactory;
 13 | import javax.xml.stream.XMLStreamReader;
 14 | 
 15 | import org.w3c.dom.Element;
 16 | 
 17 | //@XmlRootElement(name = "Root")
 18 | //@XmlAccessorType(XmlAccessType.FIELD)
 19 | public class SAXUnmarshalAny {
 20 | 
 21 |     //@XmlAnyElement(lax = true)
 22 |     //protected final List<Object> accounts = new ArrayList<Object>();
 23 | 
 24 |     public static void main(final String[] args) throws Exception {
 25 | 
 26 |         System.err.println(XML);
 27 |         System.err.println();
 28 |         final JAXBContext jaxbContext = JAXBContext.newInstance(Header.class, Product.class);
 29 |         final Unmarshaller unm = jaxbContext.createUnmarshaller();
 30 | 
 31 |         XMLStreamReader reader = XMLInputFactory.newInstance().createXMLStreamReader(new StringReader(XML));
 32 |         
 33 |         reader.nextTag(); // Advance to root element
 34 |         printElement(reader, unm);
 35 |     }
 36 | 
 37 |     static void printElement(XMLStreamReader reader, Unmarshaller unm) throws Exception {
 38 |         // read root element attributes
 39 |         for (int i = 0; i < reader.getAttributeCount(); i++) {
 40 |             System.err.println(reader.getAttributeLocalName(i) + " = " + reader.getAttributeValue(
 41 |                     i));
 42 |         }
 43 |         System.err.println();
 44 |         reader.next(); // Advance to first item or END_ELEMENT
 45 |         forEachDirectElement(reader, unm);
 46 |     }
 47 | 
 48 |     static void forEachDirectElement(XMLStreamReader reader, Unmarshaller unm) throws Exception {
 49 |         while (true) {
 50 |             // previous unmarshal() already did advance past END_ELEMENT
 51 |             int event = reader.getEventType();
 52 |             if (event == XMLStreamReader.START_ELEMENT) {
 53 |                 // read arbitrary DOM
 54 |                 JAXBElement<Object> jel = unm.unmarshal(reader, Object.class);
 55 |                 Element el = (Element) jel.getValue();
 56 |                 Object obj = el;
 57 | 
 58 |                 // try known tags
 59 |                 try {
 60 |                     obj = unm.unmarshal(el);
 61 |                 } catch (UnmarshalException e) {
 62 |                     // e.printStackTrace();
 63 |                 }
 64 |                 System.err.println(obj.getClass());
 65 |                 System.err.println(obj);
 66 |                 System.err.println();
 67 |             } else if (event == XMLStreamReader.END_ELEMENT) {
 68 |                 reader.next();
 69 |                 break;
 70 |             } else {
 71 |                 reader.next(); // skip whitespace or comment
 72 |             }
 73 |         }
 74 |     }
 75 | 
 76 |     static final String XML = "<Root a='b'>" + 
 77 |             "<Header><chld>xxx</chld><chld1>xxx</chld1></Header>" + 
 78 |             "<Product/>\r\n" + 
 79 |             "<Product/>\r\n" + 
 80 |             "<Product/>\r\n" + 
 81 |             "    <Unknown/>\r\n" + 
 82 |             "</Root>";
 83 | 
 84 |     @XmlRootElement(name = "Header")
 85 |     @XmlAccessorType(XmlAccessType.FIELD)
 86 |     public static class Header {
 87 |         protected String chld;
 88 | 
 89 |         @Override
 90 |         public String toString() {
 91 |             return "Header [chld=" + chld + "]";
 92 |         }
 93 |     }
 94 | 
 95 |     @XmlRootElement(name = "Product")
 96 |     public static class Product {
 97 | 
 98 |     }
 99 | 
100 | }
101 | 


--------------------------------------------------------------------------------
/prog/confluence/crawl-download.py:
--------------------------------------------------------------------------------
 1 | import os
 2 | import re
 3 | import sys
 4 | import requests
 5 | from urllib.parse import urljoin, urlparse
 6 | 
 7 | INVALID_FILENAME_CHARS = r'<>:"/\\|?*'
 8 | 
 9 | def sanitize_filename(name):
10 |     return re.sub(f'[{re.escape(INVALID_FILENAME_CHARS)}]', '_', name)
11 | 
12 | def extract_curl_details(curl_parts):
13 |     url, cookies, headers = None, {}, {}
14 |     for i, part in enumerate(curl_parts):
15 |         if part.startswith("http"):
16 |             url = part.strip("'")
17 |         elif part in ('-H', '--header') and i + 1 < len(curl_parts):
18 |             header = curl_parts[i + 1].strip("'")
19 |             if header.lower().startswith("cookie:"):
20 |                 cookies = dict(c.strip().split("=", 1) for c in header.split(": ", 1)[1].split("; "))
21 |             else:
22 |                 key, value = header.split(": ", 1)
23 |                 headers[key] = value
24 |     return url, cookies, headers
25 | 
26 | def get_child_pages(base_url, cookies, headers, parent_id):
27 |     api_url = urljoin(base_url, f"/rest/api/content/{parent_id}/child/page?expand=title")
28 |     response = requests.get(api_url, cookies=cookies, headers=headers)
29 |     if response.ok:
30 |         return [(p['id'], p['title']) for p in response.json().get('results', [])]
31 |     return []
32 | 
33 | def download_export(url, cookies, headers, output_path):
34 |     response = requests.get(url, cookies=cookies, headers=headers, stream=True)
35 |     if response.ok:
36 |         with open(output_path, 'wb') as f:
37 |             for chunk in response.iter_content(1024):
38 |                 f.write(chunk)
39 |         print(f"Downloaded: {output_path}")
40 |     else:
41 |         print(f"Failed to download: {url} (Status: {response.status_code}, Response: {response.text})")
42 |         sys.exit(1)
43 | 
44 | def crawl_and_download(base_url, page_id, page_title, cookies, headers, parent_dir="."):
45 |     safe_title = sanitize_filename(page_title)
46 |     page_dir = os.path.join(parent_dir, safe_title)
47 |     os.makedirs(page_dir, exist_ok=True)
48 |     parsed_url = urlparse(base_url)
49 |     site_root = f"{parsed_url.scheme}://{parsed_url.netloc}"
50 |     pdf_url = urljoin(site_root, f"/spaces/flyingpdf/pdfpageexport.action?pageId={page_id}")
51 |     doc_url = urljoin(site_root, f"/exportword?pageId={page_id}")
52 |     
53 |     download_export(pdf_url, cookies, headers, os.path.join(page_dir, f"{safe_title}.pdf"))
54 |     download_export(doc_url, cookies, headers, os.path.join(page_dir, f"{safe_title}.doc"))
55 |     
56 |     for child_id, child_title in get_child_pages(base_url, cookies, headers, page_id):
57 |         crawl_and_download(base_url, child_id, child_title, cookies, headers, page_dir)
58 | 
59 | def extract_page_id(html):
60 |     match = re.search(r'<meta name="ajs-page-id" content="(\d+)">', html)
61 |     return match.group(1) if match else None
62 | 
63 | def main():
64 |     if len(sys.argv) < 3:
65 |         print("Usage: python script.py curl <CURL_ARGUMENTS>")
66 |         sys.exit(1)
67 | 
68 |     curl_parts = sys.argv[2:]
69 |     base_url, cookies, headers = extract_curl_details(curl_parts)
70 |     if not base_url:
71 |         print("Failed to extract base URL from curl command.")
72 |         sys.exit(1)
73 | 
74 |     match = re.search(r'pageId=(\d+)', base_url)
75 |     page_id = match.group(1) if match else None
76 |     response = requests.get(base_url, cookies=cookies, headers=headers)
77 |     if not response.ok:
78 |         print(f"Failed to access page: {base_url} (Status: {response.status_code})")
79 |         sys.exit(1)
80 | 
81 |     if not page_id:
82 |         page_id = extract_page_id(response.text)
83 |         if not page_id:
84 |             print("Failed to extract page ID from URL or page source.")
85 |             sys.exit(1)
86 | 
87 |     page_title_match = re.search(r'<title>(.*?)</title>', response.text, re.IGNORECASE)
88 |     if not page_title_match:
89 |         print("Failed to extract page title.")
90 |         sys.exit(1)
91 | 
92 |     page_title = page_title_match.group(1).split(' - ')[0].strip()
93 |     crawl_and_download(base_url, page_id, page_title, cookies, headers)
94 | 
95 | if __name__ == "__main__":
96 |     main()
97 | 


--------------------------------------------------------------------------------
/prog/ejb/interceptor/nbproject/project.properties:
--------------------------------------------------------------------------------
 1 | annotation.processing.enabled=true
 2 | annotation.processing.enabled.in.editor=true
 3 | annotation.processing.processors.list=
 4 | annotation.processing.run.all.processors=true
 5 | annotation.processing.source.output=${build.generated.sources.dir}/ap-source-output
 6 | build.classes.dir=${build.dir}/classes
 7 | build.classes.excludes=**/*.java,**/*.form,**/.nbattrs
 8 | build.dir=build
 9 | build.ear.classes.dir=${build.dir}/classes
10 | build.generated.dir=${build.dir}/generated
11 | build.generated.sources.dir=${build.dir}/generated-sources
12 | build.test.classes.dir=${build.dir}/test/classes
13 | build.test.results.dir=${build.dir}/test/results
14 | debug.classpath=${javac.classpath}:${build.classes.dir}
15 | debug.test.classpath=\
16 |     ${run.test.classpath}
17 | dist.dir=dist
18 | dist.ear.jar=${dist.dir}/${jar.name}
19 | dist.jar=${dist.dir}/${jar.name}
20 | dist.javadoc.dir=${dist.dir}/javadoc
21 | endorsed.classpath=\
22 |     ${libs.javaee-endorsed-api-7.0.classpath}
23 | excludes=
24 | includes=**
25 | j2ee.compile.on.save=true
26 | j2ee.deploy.on.save=true
27 | j2ee.platform=1.7
28 | j2ee.platform.classpath=${j2ee.server.home}/modules/endorsed/javax.annotation-api.jar:${j2ee.server.home}/modules/endorsed/jaxb-api.jar:${j2ee.server.home}/modules/endorsed/webservices-api-osgi.jar:${j2ee.server.home}/modules/bean-validator.jar:${j2ee.server.home}/modules/cdi-api.jar:${j2ee.server.home}/modules/javax.batch-api.jar:${j2ee.server.home}/modules/javax.ejb-api.jar:${j2ee.server.home}/modules/javax.el.jar:${j2ee.server.home}/modules/javax.enterprise.concurrent-api.jar:${j2ee.server.home}/modules/javax.enterprise.concurrent.jar:${j2ee.server.home}/modules/javax.enterprise.deploy-api.jar:${j2ee.server.home}/modules/javax.faces.jar:${j2ee.server.home}/modules/javax.inject.jar:${j2ee.server.home}/modules/javax.interceptor-api.jar:${j2ee.server.home}/modules/javax.jms-api.jar:${j2ee.server.home}/modules/javax.json.jar:${j2ee.server.home}/modules/javax.mail.jar:${j2ee.server.home}/modules/javax.management.j2ee-api.jar:${j2ee.server.home}/modules/javax.persistence.jar:${j2ee.server.home}/modules/javax.resource-api.jar:${j2ee.server.home}/modules/javax.security.auth.message-api.jar:${j2ee.server.home}/modules/javax.security.jacc-api.jar:${j2ee.server.home}/modules/javax.servlet-api.jar:${j2ee.server.home}/modules/javax.servlet.jsp-api.jar:${j2ee.server.home}/modules/javax.servlet.jsp.jar:${j2ee.server.home}/modules/javax.servlet.jsp.jstl-api.jar:${j2ee.server.home}/modules/javax.servlet.jsp.jstl.jar:${j2ee.server.home}/modules/javax.transaction-api.jar:${j2ee.server.home}/modules/javax.websocket-api.jar:${j2ee.server.home}/modules/javax.ws.rs-api.jar:${j2ee.server.home}/modules/javax.xml.registry-api.jar:${j2ee.server.home}/modules/javax.xml.rpc-api.jar:${j2ee.server.home}/modules/jaxb-osgi.jar:${j2ee.server.home}/modules/webservices-osgi.jar:${j2ee.server.home}/modules/weld-osgi-bundle.jar:${j2ee.server.middleware}/mq/lib/jaxm-api.jar
29 | j2ee.platform.embeddableejb.classpath=${j2ee.server.home}/lib/embedded/glassfish-embedded-static-shell.jar
30 | j2ee.platform.wscompile.classpath=${j2ee.server.home}/modules/webservices-osgi.jar
31 | j2ee.platform.wsgen.classpath=${j2ee.server.home}/modules/webservices-osgi.jar:${j2ee.server.home}/modules/endorsed/webservices-api-osgi.jar:${j2ee.server.home}/modules/jaxb-osgi.jar:${j2ee.server.home}/modules/endorsed/jaxb-api.jar
32 | j2ee.platform.wsimport.classpath=${j2ee.server.home}/modules/webservices-osgi.jar:${j2ee.server.home}/modules/endorsed/webservices-api-osgi.jar:${j2ee.server.home}/modules/jaxb-osgi.jar:${j2ee.server.home}/modules/endorsed/jaxb-api.jar
33 | j2ee.platform.wsit.classpath=
34 | j2ee.server.type=gfv3ee6
35 | jar.compress=false
36 | jar.name=EJBModule1.jar
37 | javac.classpath=
38 | javac.debug=true
39 | javac.deprecation=false
40 | javac.processorpath=${javac.classpath}
41 | javac.source=1.7
42 | javac.target=1.7
43 | javac.test.classpath=\
44 |     ${javac.classpath}:\
45 |     ${build.classes.dir}
46 | javac.test.processorpath=${javac.test.classpath}
47 | javadoc.additionalparam=
48 | javadoc.author=false
49 | javadoc.encoding=${source.encoding}
50 | javadoc.noindex=false
51 | javadoc.nonavbar=false
52 | javadoc.notree=false
53 | javadoc.preview=true
54 | javadoc.private=false
55 | javadoc.splitindex=true
56 | javadoc.use=true
57 | javadoc.version=false
58 | javadoc.windowtitle=
59 | meta.inf=${source.root}/conf
60 | meta.inf.excludes=sun-cmp-mappings.xml
61 | platform.active=default_platform
62 | resource.dir=setup
63 | run.test.classpath=\
64 |     ${javac.test.classpath}:\
65 |     ${build.test.classes.dir}
66 | # Space-separated list of JVM arguments used when running a class with a main method or a unit test
67 | # (you may also define separate properties like run-sys-prop.name=value instead of -Dname=value):
68 | runmain.jvmargs=
69 | source.encoding=UTF-8
70 | source.root=src
71 | src.dir=${source.root}/java
72 | test.src.dir=test
73 | 


--------------------------------------------------------------------------------
/prog/netbeans/netbeans-faq.txt:
--------------------------------------------------------------------------------
  1 | Q: Generate Netbeans project files
  2 | A: https://gist.github.com/basinilya/9f027f69dd543268004e52a24c949e33
  3 | 
  4 | Q: inconsistent module state
  5 | A: restart server
  6 | 
  7 | Q: How to enable again the HTML error checking
  8 | A: 
  9 |   NetBeans/8.0.1/var/attributes.xml
 10 |     <fileobject name="|Users|pds|Documents|PDS|Projects|ProSpool|Warehouse|Server|web|wiz_pick_external.html">
 11 |         <attr name="disable_error_checking" boolvalue="true"/>
 12 |     </fileobject>
 13 | 
 14 |   NetBeans\8.2\config\Editors\text\html\Preferences\org-netbeans-modules-editor-settings-CustomPreferences.xml
 15 |     <entry javaType="java.lang.String" name="mimetypesWithEnabledHtmlErrorChecking" xml:space="preserve">
 16 |         <value><![CDATA[;text/html;]]></value>
 17 |     </entry>
 18 | 
 19 | Q: 
 20 |   after redeploy the previous .ear version deployed
 21 | 
 22 |   after clean:
 23 |     - Deployment error: No archive for deployment
 24 |     - no gfdeploy/ folder
 25 | A: restart netbeans
 26 | 
 27 | Q: deleted private.properties not re-generated
 28 | A: restart netbeans
 29 | 
 30 | Q:
 31 | A:
 32 |   C:\cygwin\opt\NetBeans-8.2\bin\netbeans64.exe --userdir C:\keep\netbeans\userdir --cachedir C:\keep\netbeans\cache
 33 | 
 34 | Q:
 35 |   ant -f "./standalone-module" run
 36 |   NoClassDefFoundError
 37 | A: 
 38 |   non-nbdeploy version fails to deploy dependency.jar as dependency
 39 |   ex: http://localhost:4848/__asadmin/deploy?path=path\to\standalone-module.jar&force=true&name=standalone-module
 40 | 
 41 | Q: the java db location is not set correctly
 42 | A: 
 43 |   Check presence, usually: C:\Program Files\Java\jdk*\db
 44 |   
 45 |   contains:
 46 |     bin/ij.bat
 47 |     lib/derby.jar
 48 |     lib/derbyclient.jar
 49 |     ...
 50 |   
 51 |   obtain a copy, if missing
 52 |   
 53 |   Services > Databases > Java DB > Properties > Java DB Installation
 54 | 
 55 | Q: attach precompiled jar sources globally
 56 | A:
 57 |   - Close Netbeans
 58 |   - open folder %APPDATA%\NetBeans\8.2
 59 |   - edit build.properties
 60 |   - add:
 61 |     source.reference.mylib.jar=C:\\path\\to\\mylib\\src\\main\\java
 62 | 
 63 | Q: Execution won't stop at JSP breakpoints
 64 | A: 
 65 |   - Check that "Web Pages Folder" is exactly "web" (web.docbase.dir=web)
 66 |   - Clean all projects
 67 |   - Clear Netbeans cache folder
 68 | 
 69 | Q: apply code changes
 70 | A: Debug toolbar / Green button "apply code changes" becomes enabled after editing source file
 71 | 
 72 | Q: IllegalStateException: Were trying to install a module that had never been checked: StandardModule:org.netbeans.api.debugger.jpda
 73 | A: Netbeans is trying to run on JRE. Uncomment and set netbeans_jdkhome= in netbeans.conf
 74 | 
 75 | Q: Full clean
 76 | A:
 77 |   - undeploy
 78 |   - clean
 79 |   - close projects
 80 |   - close Netbeans
 81 |   - rm -f */nbproject/build-impl.xml */nbproject/private/private.properties 
 82 | 
 83 | ??? */nbproject/private/private.xml ???
 84 | 
 85 | Q: Inspect properties of a non-UI custom bean in form editor
 86 |   When you drag a non-UI pojo class onto an `AWT Frame Form` in Netbeans, a new field is created in your frame class, but it's not visible.
 87 | A: 
 88 |   - Switch to the "Design" mode in the Form class editor
 89 |   - Click on the form
 90 |   - Click Window > Navigator
 91 |   - In the Navigator view click on the bean in the "Other components" node.
 92 | 
 93 | Q: deleted classes reappear on deploy
 94 | A: del /s /q %USERPROFILE%\AppData\Local\NetBeans\Cache\
 95 | 
 96 | Q: javadoc on hover
 97 | A: 
 98 |   Window>IDE Tools>Javadoc Documentation
 99 |   Ctrl+Shift+space
100 | 
101 | Q: class hierarchy
102 | A: Right click, Navigate > Inspect Hierarchy; Choose "Subtypes"
103 | 
104 | Q: synchronize with projects window
105 | A:
106 |   Navigate > Select in Projects
107 |   View > Synchronize Editor with Views
108 | 
109 | Q: build maven projects with older jdk
110 | A: project properties -> build -> compile -> java platform
111 | 
112 | Q: javaee-endorsed-api-6.0 is missing
113 | A: check
114 | nbproject/private.properties
115 | user.properties.file=...
116 | 
117 | Q: draw spaces
118 | A: 
119 | View -> Show Non-printable Characters
120 | To hide paragraph chars, install 1395152886_org-tvl-netbeans-editor-whitespace.nbm
121 | 
122 | Q: problems view
123 | A: Window -> Action items
124 | In the "Action Items" window press "Show action items for all opened projects"
125 | 
126 | 
127 | Q: proper cygwin settings
128 | A:
129 | include dirs:
130 |   U:/cygwin/lib/gcc/i686-pc-cygwin/4.3.4/include
131 |   U:/cygwin/usr/include
132 | macros:
133 |   /* GCC keyword, unknown by code assist */
134 |   __extension__=
135 | ********************************************************************************
136 | Q: default file encoding
137 | A: in etc/netbeans.conf, parameter "netbeans_default_options" 
138 |    append -J-Dfile.encoding (e.g. -J-Dfile.encoding=Cp1250)
139 | 


--------------------------------------------------------------------------------
/prog/jenkins/jenkins-faq.txt:
--------------------------------------------------------------------------------
  1 | Q: Jenkins prepends ${JAVA_HOME}/bin to PATH every time a script is run 
  2 | A: 
  3 |   Jenkins prepends PATH with the configured env vars with the names starting with "PATH+" before any step.
  4 |   The configured var PATH+JDK= exists because you have a JDK configured in Manage Jenkins -> Global Tool Configuration -> JDK
  5 | 
  6 | Q: I inject env var JAVA_HOME and it works until I use another inject env vars step
  7 | A: 
  8 |   Every time you use the  inject env vars Jenkins first resets the vars using the values from
  9 |   Manage Jenkins -> Global Tool Configuration -> JDK
 10 |   Manage Jenkins -> Configure System -> Global Properties
 11 | 
 12 | Q: Missing JDK dropdown in "job name" -> Configure
 13 | A: Manage Jenkins -> Global Tool Configuration -> JDK
 14 |   add more than one JDK
 15 | 
 16 | Q: Env inject - expand non-existing variables as empty strings
 17 | A:
 18 |     [v] Inject environment variables to the build process
 19 |     [v] Prepare an environment for the run
 20 |     Groovy Script
 21 |     return [NAME1 : "value1", NAME2 : "value2"]
 22 |     
 23 |     Example:
 24 |     return ["MAVEN_OPTS": getBinding().hasVariable("MAVEN_OPTS") ? MAVEN_OPTS : ""]
 25 |     
 26 |     https://stackoverflow.com/questions/58524750/append-possibly-non-existent-environment-variable-in-jenkins
 27 | 
 28 | Q: ???
 29 | A:
 30 |   Groovy script
 31 |     return [BUILD_REVISION: 
 32 |     
 33 |     [
 34 |     "I" : "refs/heads/master"
 35 |     ,"A" : "refs/heads/BR-LASTBUILD-I"
 36 |     ,"P" : "refs/heads/BR-LASTBUILD-A"
 37 |     ].get( EDFLUX_ENV )
 38 |     
 39 |     ]
 40 | 
 41 | 
 42 | Q: free space background monitor
 43 | A:
 44 |   exec 4>&1
 45 |   coproc TMPMON {
 46 |     set +x
 47 |     echo TMPMON started
 48 |     while read -r -t 1 x || [ $? = 142 ]; do
 49 |       df -m /tmp
 50 |     done
 51 |   } >&4
 52 |   eval "exec ${TMPMON[0]}<&-"
 53 | 
 54 | Q: job configurations location
 55 | A: $JENKINS_HOME/jobs/$JOB_NAME/config.xml
 56 | 
 57 | Q: build artifacts location
 58 | A: $JENKINS_HOME/jobs/$JOB_NAME/builds/$OLD_BUILD_NUMBER/archive/
 59 | 
 60 | Q: list installed plugins
 61 | A:
 62 |   http://<jenkins-url>/script
 63 |   
 64 |   Jenkins.instance.pluginManager.plugins.each{
 65 |     plugin -> 
 66 |       println ("${plugin.getDisplayName()} (${plugin.getShortName()}): ${plugin.getVersion()}")
 67 |   }
 68 | 
 69 | 
 70 | Q: Environment
 71 | A: Manage Jenkins -> Global Tool Configuration
 72 | 
 73 | Q: job config
 74 | A: $JENKINS_HOME/jobs/$jobname/
 75 | 
 76 | Q: .gitignore
 77 | A:
 78 |   builds/
 79 |   #modules/
 80 | 
 81 | Q: job-scope credentials
 82 | A: put jobs to folders (folders plugin)
 83 | 
 84 | Q: "Secret file" credentials
 85 | A: Credentials Plugin, Credentials Binding Plugin
 86 |   When plugins installed, go to job Configure and add a credentials parameter of type "Secret File".
 87 |   Name the variable "TESTCRED".
 88 | 
 89 |   Then check the checkbox: "Use secret text(s) or file(s)"
 90 |   This allows to convert a credential id to credential contents.
 91 |   In the "Secret file" binding Name the variable: TESTCRED_PATH
 92 |   and Parameter Expression: ${TESTCRED}
 93 |   Now the path to the secret file is available to the build steps
 94 | 
 95 | 
 96 | Q: Call another job with a certain secret file parameter
 97 | A: 
 98 |   In the caller job check "Use secret text(s) or file(s)"
 99 |   In the "Secret file" binding Name the variable: LOCAL_TESTCRED_PATH
100 | 
101 |   In the Trigger parameterized build on other projects in Parameters input the following:
102 |     TESTCRED=test_cred_id
103 |     TESTCRED_PATH=${LOCAL_TESTCRED_PATH}
104 |   
105 |   (you need both; the actual value used depends on plugins versions)
106 | 
107 | Q: 
108 |   org.jenkinsci.plugins.credentialsbinding.impl.CredentialNotFoundException: ${TESTCRED}
109 |   	at org.jenkinsci.plugins.credentialsbinding.MultiBinding.getCredentials(MultiBinding.java:131)
110 |   	at org.jenkinsci.plugins.credentialsbinding.impl.FileBinding.bindSingle(FileBinding.java:53)
111 |   	at org.jenkinsci.plugins.credentialsbinding.Binding.bind(Binding.java:133)
112 |   	at org.jenkinsci.plugins.credentialsbinding.impl.SecretBuildWrapper.setUp(SecretBuildWrapper.java:96)
113 |   	at hudson.model.Build$BuildExecution.doRun(Build.java:156)
114 |   	at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:534)
115 |   	at hudson.model.Run.execute(Run.java:1728)
116 |   	at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
117 |   	at hudson.model.ResourceController.execute(ResourceController.java:98)
118 |   	at hudson.model.Executor.run(Executor.java:404)
119 |   Finished: FAILURE
120 | 
121 | A:
122 |   credential plugins too old and the credentials parameter passed from parent job does not refer an existing credential id
123 |   Newer credential binding plugin ignores the credential id value if the outcome variable is also passed from the parent job
124 | 
125 | 
126 | Q: list plugins
127 | A: 
128 |   http://<jenkins-url>/script
129 |   
130 |   Jenkins.instance.pluginManager.plugins.each{
131 |     plugin -> 
132 |       println ("${plugin.getDisplayName()} (${plugin.getShortName()}): ${plugin.getVersion()}")
133 |   }
134 | 


--------------------------------------------------------------------------------
/prog/documentum/dql-faq.txt:
--------------------------------------------------------------------------------
  1 | Q: create object ... setfile = ...
  2 |   [DM_SYSOBJECT_E_CANT_ACCESS_FILE]error:  "Cannot access file 'C:\2\Daily Vendor Report.pwt' due to Operating System error."
  3 | A:
  4 |   DQL looks on content server. API looks locally
  5 |   Use API setfile,...
  6 | 
  7 | Q:
  8 |   API> save,c,0902253e826cfed4
  9 |   ...
 10 |   [DM_API_E_CANT_UPDATE]error:  "Cannot Save/Check-in object <> because the object is marked invalid.  This is most likely due to an error from a prior operation performed on the object."
 11 | A:
 12 |   API> reset,c,0902253e826cfed4
 13 | 
 14 | 
 15 | Q: exec_sql with select
 16 | A: Since D7: execute exec_select_sql with query = '...';
 17 | 
 18 | Q: ???
 19 | A:
 20 |   create TYPE mytype ( s string(50) ) supertype dm_sysobject publish;
 21 |   drop   TYPE mytype ;
 22 | 
 23 | 
 24 | Q: change sysobject type (convert to another type)
 25 | A:
 26 |   CHANGE current_type [(ALL)] OBJECT[S]
 27 |   TO new_type[update_list]
 28 |   [IN ASSEMBLY document_id [VERSION version_label] [DESCEND]]
 29 |   [SEARCH fulltext search condition]
 30 |   [WHERE qualification]
 31 | 
 32 | Q: list object aspects
 33 | A: select r_aspect_name from dm_sysobject where ...
 34 | 
 35 | Q: list default type aspects
 36 | A: select ti.r_object_id, ti.default_aspects, ti.r_type_name from dmi_type_info ti where ti.r_type_name = '...';
 37 | 
 38 | Q: create aspect
 39 | A: Only with Composer/xCP
 40 | 
 41 | Q: drop aspect
 42 | A:
 43 | 
 44 |   -- select sysobjects having r_aspect_name[1] = 'tst_auditaspect'
 45 |   select r_object_id, -1 - i_position from dm_sysobject (all) where r_aspect_name = 'tst_auditaspect' and i_position = -2 enable (ROW_BASED) ;
 46 |   
 47 |   -- remove aspect from sysobjects having r_aspect_name[1] = 'tst_auditaspect'
 48 |   update dm_sysobject (all) objects remove r_aspect_name[1] where r_object_id in( '0801e24080086229' );
 49 |   
 50 |   -- unlink the jars from aspect
 51 |   update dm_sysobject (all) objects unlink '/System/Modules/Aspect/tst_auditaspect' where folder('/System/Modules/Aspect/tst_auditaspect', descend) and i_reference_cnt > 1;
 52 |   update dm_sysobject (all) objects unlink '/System/Modules/Aspect/tst/tst_auditaspect' where folder('/System/Modules/Aspect/tst/tst_auditaspect', descend) and i_reference_cnt > 1;
 53 |   
 54 |   -- remove aspect configuration
 55 |   delete dm_sysobject (all) objects where folder('/System/Modules/Aspect/tst_auditaspect', descend) and i_reference_cnt = 1;
 56 |   delete dm_sysobject (all) objects where folder('/System/Modules/Aspect/tst/tst_auditaspect', descend) and i_reference_cnt = 1;
 57 |   
 58 |   -- delete aspect
 59 |   delete dmc_aspect_type (all) objects where object_name = 'tst_auditaspect';
 60 | 
 61 | 
 62 | 
 63 | Q: add default aspect
 64 | A:
 65 |   alter type tst_par2chld add default aspects 'sync_x_relation'
 66 | 
 67 | Q: "You have specified a non-integer token in an ORDER BY clause with UNION."
 68 | A: sort with: "enable (RETURN_RANGE)".
 69 |   Due to the bug, sorting may be unreliable: in generated sql index in 'order by <index>'
 70 |   is not equal to index of dm_rnum.
 71 | 
 72 | Q: top or limit
 73 | A: ... enable(return_top 10);
 74 |     see: enable (RETURN_range  <start+1> <limit> '<sortcol> <sortord>')
 75 | 
 76 | 
 77 | 
 78 | Q: date in utc
 79 | A: select DATE('2020-12-31 12:00:00utc', 'yyyy-mm-dd hh:mi:ss') as x from dm_docbase_config ;
 80 |   (Without a column alias selecting date('...') in result columns works in PostgreSQL, but not in Oracle: [DM_API_E_BADATTRNAME]error: Bad attribute name)
 81 | 
 82 | Q: dual
 83 | A: select 'aaa' as x from dm_docbase_config
 84 | 
 85 | Q: Current SERVER date
 86 | A: select date(now) as x from dm_docbase_config
 87 |   Warning: when setting an attribute value to date(now) the CLIENT date is used
 88 | 
 89 | Q: dm_relation has no r_object_type, but relation_name may differ from its actual type
 90 | A:
 91 |   select * from dm_type where i_type in(
 92 |   select i_type from dm_dbo.DMI_OBJECT_TYPE where r_object_id in(
 93 |   select r_object_id from dm_relation where relation_name = 'dm_bof_dependencies' 
 94 |   )
 95 |   )
 96 |   ;
 97 | 
 98 | Q: set null
 99 | A: 
100 | datecolumn = date('NULLDATE')
101 | , strcolumn1 = ' '
102 | , strcolumn2 = '' -- same as above
103 | 
104 | Q: select nulldate
105 | A: select date('01/01/1753utc') from dm_docbase_config;
106 | 
107 | Q: select null
108 | A: not supported, you can select '' for NULLSTRING or select 0 for NULLINT
109 | 
110 | Q: check for null
111 | A:
112 |   - In WHERE / LEFT JOIN conditions
113 | 
114 |   If what you want is to check for empty value use:
115 |   IS [NOT] NULLDATE (checks for null or special 17xx year)
116 |     NULLSTRING (translated to Oracle SQL: (field is null or field = ' ') )
117 |     NULLINT (null or 0)
118 |     NULLID (?)
119 | 
120 |   If you want real nulls in condition, use:
121 |   IS [NOT] NULL
122 | 
123 |   - In result column
124 |   
125 |   The API won't allow you to tell DB NULL from empty
126 |   The workaround is to use special arithmetics in SELECT.
127 | 
128 |   For string:
129 |   SELECT ASCII(colname)+1, because ASCII(NULL)+1 always returns 0
130 | 
131 |   For int:
132 |   colname*0 + 1
133 | 
134 | 
135 | !!! = '' always false (except for corrupt rows) !!! Documentum never stores an empty string or NULL in the varchar db column, only one blank character
136 | 
137 | 


--------------------------------------------------------------------------------
/prog/mendix/mendix-error-handling-results.txt:
--------------------------------------------------------------------------------
 1 | These are actual test results
 2 | ================================================================================================
 3 | When a sub-microflow is called by an action with "Custom without rollback" handling, the objects saved in that sub-microflow are rolled back while the objects saved by the caller microflow before and after the sub-microflow are committed.
 4 | Even if the sub-microflow has its own error handling, the objects saved in that error sequence flow are also rolled back regardless of the error handling type.
 5 | 
 6 | CoreAction.getContext().getTransactionId() returns the same value in both microflows in both normal and error sequence flows
 7 | 
 8 | Conclusion: an action with "Custom without rollback" creates a savepoint
 9 | ================================================================================================
10 | When a sub-microflow is called by an action with "Custom with rollback" handling, the objects saved in that sub-microflow and the objects previously saved in the caller microflow are rolled back and only the objects saved after the error in the caller microflow are committed.
11 | Even if the sub-microflow has its own error handling, the objects saved in that error sequence flow are also rolled back regardless of the error handling type.
12 | 
13 | CoreAction.getContext().getTransactionId() returns the same value until the "Custom with rollback" flow in the callee. Then another transaction id is returned, but if both microflows have "Custom with rollback" and when the error flow starts in the caller then a third transaction id is returned.
14 | ================================================================================================
15 | The insteresting part is that if the callee ends with a normal end event it still rolls back the whole transaction if the savepoint does not exist.
16 | It means that a sub-microflow could rollback more objects than you want.
17 | 
18 | 
19 | 
20 | Q: Why at https://gettingstarted.mendixcloud.com/link/module/32/lecture/207/4.3-Knowledge-Check-%E2%80%93-Advanced-Error-Handling-Situations
21 |   Question 1: Consider the following scenario, in which the main microflow and the sub-microflow are invoked by the user. The main microflow has Custom without Rollback error handling, and the sub-microflow has Custom with Rollback error handling. In the sub-microflow below, what does the error event achieve?
22 |   [x]It causes the sub-microflow action in the main microflow to throw an error.
23 |   ?
24 |   "Custom without Rollback" does not throw, does it?
25 | A: must be poor wording
26 | 
27 | Q: Why at https://gettingstarted.mendixcloud.com/link/module/32/lecture/207/4.3-Knowledge-Check-%E2%80%93-Advanced-Error-Handling-Situations
28 |   Question 4: What happens if the same microflows are used, but the error handling on the main microflow is Custom with Rollback and the error handling on the sub-microflow is Custom without Rollback?
29 |   [x]The Order, OrderLine, and Log objects are rolled back while the Customer object is committed to the database
30 |   ?
31 |   The accepted answer is the same as for Question 3 although the error from the java action is now handled with "Custom without Rollback" which should create a concurrent transaction for the "Create Log" action.
32 |   So the Log object should not be rolled back.
33 | A: The answer is correct and the tutorial is wrong
34 | 
35 | Q: When is a savepoint created?
36 | A: It's created before an action with a "Without rollback" error handling.
37 | 
38 | Q: What does Rollback do?
39 | A: It rolls back to the most recent savepoint. If there's no savepoint the whole transaction is rolled back.
40 | 
41 | 
42 | Q: What if a sub-microflow saves to DB after error with or without rollback, then re-throws and the calling microflow rolls back?
43 |   https://gettingstarted.mendixcloud.com/link/module/32/lecture/294/4.1-Advanced-Error-Handling-Situations
44 |     https://gettingstarted.mendixcloud.com/file?guid=4222124650660791&changedDate=1611130719644
45 |     What happens to the $NewEmailError object?
46 | 
47 | A: test shows that the object is not committed
48 | 
49 | 
50 | Q: What happens to non-persistable objects on transaction rollback?
51 | A: they aren't rolled back
52 | 
53 | Q: why at https://gettingstarted.mendixcloud.com/link/module/31/lecture/292/3.5-Knowledge-Check-%E2%80%93-Error-Handling-Basics
54 | Question 2: What best describes the Custom without Rollback error handling option?
55 | [x]A new transaction is initiated, the microflow follows the designated error flow, and all the database commits preceding the error action are preserved.
56 | and not
57 | [ ]The existing transaction is continued, and all the changes made before and after the error will be committed to the database.
58 | 
59 | A: must be bad wording
60 | 
61 | Q: What happens to values of attributes of an object variable in a microflow after "Rollback Object" activity? What happens to the cached objects after "Rollback Object" activity?
62 | A: A rolled back object can be passed to the page with a data view and can be saved later.
63 | 
64 | Q: What happens to values of attributes of an object variable in a microflow after Rollback of a Transaction or a Savepoint?
65 | A: 
66 |   The values and the isNew() state aren't reverted automatically. In fact, even manual revert isn't possible if an object was saved inside a savepoint that was later aborted.
67 |   One exception is a save of a list: the changes made in a BCO_ are reverted if the whole list fails to save.
68 | 


--------------------------------------------------------------------------------
/linux/archlinux/fs/$HOME/p3wm-all:
--------------------------------------------------------------------------------
  1 | #!/bin/bash
  2 | 
  3 | export LC_ALL=C # to screen scrape messages from `downgrade`
  4 | export P3WM_RESOLVE_TOOL=builtin_resolve_vimdiff
  5 | builtin_resolve_vimdiff() {
  6 |   #vim -f -d -c "4wincmd w | wincmd J" "$LOCAL" "$BASE" "$REMOTE" "$MERGED"
  7 |   vimdiff -c "windo set wrap" -c "syntax off" "$LOCAL" "$REMOTE"
  8 | }
  9 | 
 10 | exec 4<&0
 11 | sed 's|.*installed as \(.*\.pacnew\)$|\1|;t;d' /var/log/pacman.log | sort -u | xargs --no-run-if-empty -d'\n' ls 2>/dev/null | {
 12 |   a_confs=()
 13 |   a_pacnew=()
 14 |   while read -r pacnew; do
 15 |     conf=${pacnew%.pacnew}
 16 |     if [ -e "$conf" ]; then
 17 |       a_confs+=( "$conf" )
 18 |       a_pacnew+=( "$pacnew" )
 19 |     fi
 20 |   done
 21 |   if [ "${#a_confs[@]}" = 0 ]; then
 22 |     exit
 23 |   fi
 24 |   exec 0<&4
 25 |   . /usr/bin/p3wm
 26 |   set_shopts
 27 |   pacman -Qoq "${a_confs[@]}" | sort -u | while read -r pkg_name; do
 28 |     ver_tuple="$(get_ver_tuple "$pkg_name")"
 29 |     oldver="${ver_tuple% *}"
 30 |     pkg_cached="$(find_cached_pkg "$pkg_name" "$oldver")"
 31 |     arch="$(get_pkg_arch "$pkg_name")"
 32 | 
 33 |     if [[ -z "$pkg_cached" ]]; then
 34 |       echo "Unable to find package ‘$pkg_name-$oldver-$arch.pkg.*’ in cache"
 35 | 
 36 |       # read and append next character to s unless newline, otherwise clear s
 37 |       fn_read_prompt() {
 38 |         local c
 39 |         read -r -N1 c &&
 40 |           if [ $'\n' = "$c" ]; then
 41 |             printf '\n'
 42 |             s=
 43 |           else
 44 |             printf %c "$c"
 45 |             s=$s$c
 46 |           fi
 47 |       }
 48 |       fn_expect() {
 49 |         while true; do
 50 |           IFS= read -r s || {
 51 |             >&2 echo "not found: 'Available packages' prompt"
 52 |             return 1
 53 |           }
 54 |           printf '%s\n' "$s"
 55 |           case $s in
 56 |             'Available packages'*)
 57 |               break;
 58 |               ;;
 59 |           esac
 60 |         done
 61 |         pkgrel=${oldver##*-}
 62 |         pkgver=${oldver%-*}
 63 |         epoch=${pkgver%:*}
 64 |         if [ ${#epoch} = ${#pkgver} ]; then
 65 |           epoch=
 66 |         else
 67 |           pkgver=${pkgver##*:}
 68 |         fi
 69 | 
 70 |         echo "looking for ${pkg_name:?} ${epoch} ${pkgver:?} ${pkgrel:?}"
 71 |         blanks=
 72 |         while true; do
 73 |           IFS= read -r s || {
 74 |             >&2 echo "not found: [0-9])   ${epoch} ${pkg_name:?} ${pkgver:?} ${pkgrel:?}"
 75 |             return 1
 76 |           }
 77 |           printf '%s\n' "$s"
 78 |           case $s in
 79 |             '')
 80 |               if [ "x" = "$blanks" ]; then
 81 |                 >&2 echo "not found: [0-9])   ${epoch} ${pkg_name:?} ${pkgver:?} ${pkgrel:?}"
 82 |                 return 1
 83 |               fi
 84 |               blanks=x$blanks
 85 |               ;;
 86 |             *[0-9]')'*) # *" ${pkg_name:?} "*" ${pkgver:?} "*)
 87 |               a=($s)
 88 | 
 89 |               # a=("_" "${a[@]}")
 90 |               #echo "zzz ${a[*]}"
 91 | 
 92 |               i=0
 93 |               [[ "${a[0]}" != [+-] ]] || i=$((i+1))
 94 | 
 95 |               x_choice=${a[i++]%')'}
 96 |               x_pkg_name=${a[i++]}
 97 |               x_epoch=
 98 |               [ -z "$epoch" ] || x_epoch=${a[i++]}
 99 |               x_pkgver=${a[i++]}
100 |               x_pkgrel=${a[i++]}
101 | 
102 |               echo "x_pkg_name=$x_pkg_name x_epoch=$x_epoch x_pkgver=$x_pkgver x_pkgrel=$x_pkgrel"
103 | 
104 |               if [[ "${pkg_name:?}" == "${x_pkg_name}" && "${epoch}" == "${x_epoch}" && "${pkgver:?}" == "${x_pkgver}" && "${pkgrel:?}" == "${x_pkgrel}" ]]; then
105 |                 choice=${x_choice}
106 |                 echo "choice=$choice"
107 |                 break;
108 |               fi
109 |               ;;
110 |           esac
111 |         done
112 | 
113 |         echo "looking for 'select a package by number'"
114 |         s=
115 |         while true; do
116 |           fn_read_prompt || {
117 |             >&2 echo "not found: 'select a package by number:' prompt"
118 |             return 1
119 |           }
120 |           case $s in
121 |             'select a package by number: ')
122 |               printf '%s\n' "${choice:?}"
123 |               >&5 printf '%s\n' "${choice:?}"
124 |               s=
125 |               break;
126 |               ;;
127 |           esac
128 |         done
129 |         echo "looking for 'add <pkg_name> to IgnorePkg?'"
130 |         choice='n'
131 |         while true; do
132 |           fn_read_prompt || {
133 |             >&2 echo "not found: 'add <pkg_name> to IgnorePkg? [y/N]' prompt"
134 |             return 1
135 |           }
136 |           case $s in
137 |             *' to IgnorePkg? [y/N] ')
138 |               printf '%s\n' "${choice:?}"
139 |               >&5 printf '%s\n' "${choice:?}"
140 |               break;
141 |               ;;
142 |           esac
143 |         done
144 |         cat
145 |       }
146 |       coproc downgrade "$pkg_name" -- -wdd --noconfirm # | pv -q -L10; }
147 |       pid=${COPROC_PID:?}
148 |       fn_expect <&${COPROC[0]} 5>&${COPROC[1]}
149 |       wait $pid
150 |     fi # not found in cache
151 | 
152 |   done
153 |   for pacnew in "${a_pacnew[@]}"; do
154 |     >>/var/log/p3wm-all.log printf '%(%F %T)T %s\n' -1 "$pacnew"
155 |     #p3wm "$pacnew"
156 |     ( main "$pacnew" )
157 |   done
158 | }
159 | 
160 |   #xargs --max-args=1 --open-tty --no-run-if-empty -d'\n' p3wm
161 |   #xargs --no-run-if-empty -d'\n' ls -ld
162 | 


--------------------------------------------------------------------------------
/prog/ffmpeg/ffmpeg-faq.txt:
--------------------------------------------------------------------------------
  1 | Q: cut part from video file from start position to end position
  2 | A:
  3 |   -ss starttime
  4 |   -t duration
  5 |   -to endtime
  6 | 
  7 | Q: concat
  8 | A:
  9 |   https://trac.ffmpeg.org/wiki/Concatenate
 10 | 
 11 | Q: Screen grab
 12 | A:
 13 |   Install UScreenCapture
 14 |   Install Virtual Audio Cable (lite) https://vac.muzychenko.net/en/index.htm
 15 | 
 16 |   ffmpeg -list_devices true -f dshow -i dummy | iconv -f utf-8 -t cp866
 17 |   ffmpeg -hide_banner -y -f dshow -thread_queue_size 1024 -i video="UScreenCapture" -f dshow -channel_layout stereo -thread_queue_size 1024 -i audio="௤ (Realtek High Definiti" -f dshow -channel_layout stereo -thread_queue_size 1024 -i audio="Line 1 (Virtual Audio Cable)" -filter_complex amix=inputs=2 -c:a aac -ac 2 -b:a 128k -c:v libx264 -preset ultrafast -tune zerolatency -movflags +faststart output.mp4
 18 | 
 19 |   Record without audio
 20 | 
 21 |   ffmpeg -hide_banner -y -f dshow -thread_queue_size 1024 -i video="UScreenCapture" -c:v libx264 -preset ultrafast -tune zerolatency -movflags +faststart output.mp4
 22 | 
 23 | 
 24 |   Problems:
 25 |   unlike mkv, mp4 requires graceful shutdown of ffmpeg otherwise you get "moov atom not found" when you try to play an incomplete mp4 file.
 26 |   the video delay in the output file is huge: ~1000ms 
 27 | 
 28 | Q: no logo
 29 | A: -hide_banner
 30 | 
 31 | Q: Scene detection
 32 | A:
 33 | https://stackoverflow.com/a/38205105/447503
 34 | 
 35 | Combining the scene filter (for detecting scene changes) and the showinfo filter should achieve what you want:
 36 | 
 37 |     ffmpeg -i input.flv  \
 38 |            -filter:v "select='gt(scene,0.4)',showinfo" \
 39 |            -f null \
 40 |            - 2> ffout
 41 | 
 42 | This command extracts all frames that differ from the previous frame by more than (gt) 0.4 (on a scale from 0 to 1). For these frames, information is printed out (showinfo) like this       
 43 | 
 44 |     [Parsed_showinfo_1 @ 0x2d85e60] n:   0 pts:2537204 pts_time:2.5372  pos:  2998114 fmt:rgb24 sar:1/1 s:1920x1200 i:P iskey:1 type:I checksum:5616582E plane_checksum:[5616582E]
 45 | 
 46 | Now you only have to extract the timestamp. I think you're interested in pts_time. You could do it like this:
 47 | 
 48 |     grep showinfo ffout | grep pts_time:[0-9.]* -o | grep [0-9.]* -o > timestamps
 49 | 
 50 | This will give you the list of all timestamps:
 51 | 
 52 |     2.5372
 53 |     4.37799
 54 |     6.65301
 55 |     8.09344
 56 | 
 57 | For this approach to work, you must have a version of FFmpeg that implements the scene detection. Also, you have to select a suitable value for the threshold (0.4 in the first command). You can try to find an optimal threshold by extracting frames for different thresholds (and afterwards examine the frames manually) like this
 58 | 
 59 |     ffmpeg -i input.flv \
 60 |            -filter:v "select='gt(scene,0.1)',showinfo" \
 61 |            -vsync 0 frames/%05d.jpg
 62 |        
 63 | 
 64 | I don't have the rep to post a comment on the above answer but I wanted to point out that the grep posted by both @ckoehn and @keypulsations will only grab timestamps which are floating point. To grab both floating point and integer timestamps use the following regex
 65 | 
 66 |     grep showinfo ffout | grep pts_time:[0-9.]* -o | grep -E '[0-9]+(?:\.[0-9]*)?' -o > timestamps
 67 | 
 68 | You can simply use the command:
 69 | 
 70 | ffmpeg inputvideo.mp4 -filter_complex "select='gt(scene,0.3)',metadata=print:file=time.txt" -vsync vfr img%03d.png
 71 | 
 72 | This will save just the relevant information in the time.txt file like below.
 73 | 
 74 |     frame:0    pts:108859  pts_time:1.20954
 75 |     lavfi.scene_score=0.436456
 76 |     frame:1    pts:285285  pts_time:3.16983
 77 |     lavfi.scene_score=0.444537
 78 | 
 79 | 
 80 | Q: remove audio track
 81 | A: ffmpeg -i example.mkv -c copy -an example-nosound.mkv
 82 | 
 83 | Q: create video of images
 84 | A: ffmpeg -framerate 5 -i img-%02d.png video.avi
 85 | 
 86 | Q: create gif
 87 | A: 
 88 |   set -- out2.mp4 out2.gif
 89 |   filters=fps=25,scale=320:-1:flags=lanczos
 90 |   ffmpeg -y -v warning -i $1 -vf "$filters${filters:+,}palettegen" ${palette:-palette.png}
 91 |   ffmpeg -y -v warning -i $1 -i ${palette:-palette.png} -lavfi "$filters [x]; [x][1:v] paletteuse" $2
 92 |   
 93 |   w/o filters:
 94 |   ffmpeg -y -v warning -i $1 -vf "palettegen" ${palette:-palette.png}
 95 |   ffmpeg -y -v warning -i $1 -i ${palette:-palette.png} -lavfi "[0:v][1:v] paletteuse" $2
 96 |   ffmpeg -y -v warning -i $1 -i ${palette:-palette.png} -lavfi "paletteuse" $2
 97 | 
 98 | Q: download ffmpeg windows builds
 99 | A: https://github.com/btbn/ffmpeg-builds/releases
100 | 
101 | Q: grab screen (capture desktop) on Windows
102 | A: sleep 3 && ffmpeg -y -f gdigrab -framerate 25 -offset_x 100 -offset_y 100 -video_size 640x480 -show_region 1 -i desktop -c:v huffyuv out2.avi
103 | 
104 | 
105 | ======== create audio CD image with imgburn =============
106 | - create wav files out of mp3 files:
107 | ex: ffmpeg -y -i test.mp3 -ar 44100 -ac 2 -acodec pcm_s16le test.wav
108 | 
109 | - in imgburn switch to write mode
110 | - press small button "create CUE file" in the center of the window
111 | - add tracks (all wav files, CD-audio format, important for mounting)
112 | - press ok and save
113 | - exit write mode
114 | 
115 | Now you have a wav/cue file which is image and can be mounted with daemon tools!
116 | 
117 | 
118 | To create a single bin/cue file
119 | (Although in build mode ImgBurn recognizes the cue file as an image file, it then creates a data cd containing the cue file itself instead of an audio cd with the tracks.)
120 | Instead:
121 | - mount wav/cue file with daemon tools
122 | - in imgburn switch to read mode
123 | - save as *.bin (cue file created automatically)
124 | 
125 | ======== END create audio CD image with imgburn =============
126 | 


--------------------------------------------------------------------------------
/prog/maven/maven-faq.txt:
--------------------------------------------------------------------------------
  1 | Q: bundle precompiled artifacts with the project
  2 | A:
  3 |   <repositories>
  4 |       <repository>
  5 |           <id>jars-bundle-lv0</id>
  6 |           <url>file://${basedir}/jars-bundle/repo</url>
  7 |       </repository>
  8 |       <repository>
  9 |           <id>jars-bundle-lv1</id>
 10 |           <url>file://${basedir}/../jars-bundle/repo</url>
 11 |       </repository>
 12 |       <repository>
 13 |           <id>jars-bundle-lv2</id>
 14 |           <url>file://${basedir}/../../jars-bundle/repo</url>
 15 |       </repository>
 16 |   </repositories>
 17 | 
 18 | 
 19 | Q: Run a single test in a multi-module project
 20 | A: mvn test -am -DfailIfNoTests=false -Dtest=TestName
 21 | 
 22 | Q: "An internal error occurred during: Updating Maven Project" "Path must include project and resource name"
 23 | A: m2e can't into project build directory outside of project folder
 24 | 
 25 | Q: javadoc
 26 | A: mvn javadoc:jar install / mvn javadoc:jar deploy
 27 | 
 28 | Q: sources
 29 | A: mvn source:jar install / mvn source:jar deploy
 30 | 
 31 | Q: old Maven fails insecure download from http://repo.maven.apache.org/maven2
 32 |   Failed to transfer file: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-resources-plugin/2.5/maven-resources-plugin-2.5.pom
 33 |   ReasonPhrase:HTTPS Required
 34 | 
 35 | A: settings.xml:
 36 |   ...
 37 |   	<profiles>
 38 |   		<profile>
 39 |   			<id>default-repos</id>
 40 |   			<repositories>
 41 |   				<repository>
 42 |   					<id>dflt</id>
 43 |   					<name>dflt</name>
 44 |   					<url>https://repo.maven.apache.org/maven2</url>
 45 |   				</repository>
 46 |   			</repositories>
 47 |   			<pluginRepositories>
 48 |   				<pluginRepository>
 49 |   					<id>dflt-plugins</id>
 50 |   					<name>dflt-plugins</name>
 51 |   					<url>https://repo.maven.apache.org/maven2</url>
 52 |   				</pluginRepository>
 53 |   			</pluginRepositories>
 54 |   		</profile>
 55 |   	</profiles>
 56 |   	<activeProfiles>
 57 |   		<activeProfile>default-repos</activeProfile>
 58 |   	</activeProfiles>
 59 |   </settings>
 60 | 
 61 | Q: clean rebuild a submodule while resolving the uninstalled dependencies in the reactor
 62 | A: ?
 63 | 
 64 | Q: test only jar
 65 | A:
 66 |     use a separate project
 67 |         - move test sources to src/main
 68 |         or
 69 |         - use <sourceDirectory>src/test/java</sourceDirectory> 
 70 |     
 71 |         - to test itself:
 72 | 		<plugin>
 73 | 			<artifactId>maven-surefire-plugin</artifactId>
 74 | 			<configuration>
 75 | 				<testClassesDirectory>${project.build.directory}/classes/</testClassesDirectory>
 76 | 			</configuration>
 77 | 		</plugin>
 78 |         
 79 | 
 80 | Q: Changes detected - recompiling the module
 81 | A: `mvn -X` look for "Stale source detected"
 82 | 
 83 | Q: dependency scope transitive, but not to package to .war
 84 | A: there is no such.
 85 |     <scope>provided</scope> & <optional>true<optional> are similar (known difference in generated MANIFEST.MF)
 86 |     they are both non-transitive
 87 | 
 88 | workarounds:
 89 | - In the root project explicitly depend with <scope>provided</scope> (no need to use exclusions)
 90 | or
 91 | - make a meta pom and make every artifact depend on it with <scope>provided</scope>
 92 | 
 93 | 
 94 | Q: non-standard source and resources location
 95 | A:
 96 | 		<sourceDirectory>src</sourceDirectory>
 97 | 		<resources>
 98 | 			<resource>
 99 | 				<directory>resources</directory>
100 | 			</resource>
101 | 		</resources>
102 | 
103 | 
104 | 
105 | Q: what's so bad about dependency scope system?
106 | A: 
107 | - cannot mark test dependencies
108 | - transitive dependencies (if any) will not be available
109 | 
110 | 
111 | Q: Is <groupId>org.apache.maven.plugins</groupId> mandatory?
112 | A: The groupId is optional since org.apache.maven.plugins is the default groupID
113 | 
114 | Q: dependency tree
115 | A: mvn dependency:tree
116 | 
117 | Q: effective pom
118 | A: mvn help:effective-pom
119 | 
120 | Q: javax.net.ssl.trustStore
121 | A: 
122 | -Djavax.net.ssl.trustStore=C:\BACKUP\USBHDD\Docs\prog\custom.keystore -Djavax.net.ssl.trustStorePassword=password
123 | Warning! not merged
124 | 
125 | Q: <skip>true</skip> cannot be overridden using mvn -Dmaven.test.skip=false test
126 | A:
127 | <properties>
128 | <maven.test.skip>true</maven.test.skip>
129 | </properties>
130 | 
131 | <plugin>
132 | <groupId>org.apache.maven.plugins</groupId>
133 | <artifactId>maven-surefire-plugin</artifactId>
134 | <configuration>
135 | <skip>${maven.test.skip}</skip>
136 | </configuration>
137 | </plugin>
138 | 
139 | Q: download artifact to local repo
140 | A:
141 | mvn org.apache.maven.plugins:maven-dependency-plugin:2.1:get -DrepoUrl=http://repo.jenkins-ci.org/public -Dartifact=com.atlassian.jira:jira-rest-api:6.0-OD-09-3
142 | 
143 | Q: download source artifact without pom
144 | A: mvn dependency:get -DgroupId=commons-io -DartifactId=commons-io -Dversion=2.3 -Dclassifier=sources
145 | 
146 | Q: install artifact to local repo
147 | A: 
148 | mvn install:install-file -DgroupId=javax.activation -DartifactId=activation -Dversion=1.0.2 -Dpackaging=jar -Dfile=activation-1.0.2.jar
149 | 
150 | Q: deploy project to local repo/install snapshot with timestamp suffix
151 | A: mvn deploy -Dmaven.test.skip -DaltDeploymentRepository=mylocalrepo::default::file:///D:/m2repo
152 | 
153 | 
154 | Q: install artifact to remote repo
155 | A: 
156 | mvn   deploy:deploy-file -Durl=file://///win2008-jira/c$/jira/m2repo -DrepositoryId=foobar -Dpackaging=jar -DgroupId=ru.mikuloff.jira -DartifactId=jira-soap-library -Dversion=3.13.4.1-SNAPSHOT -Dfile=jira-soap-library-3.13.4.1-SNAPSHOT.jar
157 | 
158 | 
159 | Q: get sources
160 | A: mvn dependency:sources
161 | 


--------------------------------------------------------------------------------
/prog/documentum/xcp-downsides.txt:
--------------------------------------------------------------------------------
  1 | DRAFT
  2 | 
  3 | Pages changed on disk aren't refreshed automatically when opened in designer
  4 | 
  5 | Attributes of expanded fragment outout of type "Model" are not sorted alphabetically
  6 | 
  7 | 
  8 | "Select Package Object" dialog in Process Debugger does not allow searching by r_object_id or full object path. It does not allow typing in the list view to quickly select the needed object.
  9 | 
 10 | A stateless process can't return multivalue variables with different number of elements
 11 | 
 12 | "Perform as" is meaningless in a stateless process. You cannot change the activity performer.
 13 | 
 14 | It's really inconvenient to chain data actions on client (especially with conditionals and branching)
 15 | 
 16 | Maximum artifact system name length is too small, especially for UI events and Action Flow Steps
 17 | 
 18 | The horizontal scrollbar in page designer does not help with very wide column boxes with horizontal orientation
 19 | 
 20 | Hard to find a widget by id when designing a page
 21 | 
 22 | Hard to drag Column Boxes with blank title
 23 | 
 24 | Fragment Containers do not respect parent's Margin Left value
 25 | 
 26 | Unable to categorize artifacts in folders, especially Processes and UI Events
 27 | 
 28 | Data Source identifiers used in expressions are not descriptive and are not renamed when a data source label changes
 29 | 
 30 | Having only one active user role at time is inconvenient
 31 | 
 32 | Cannot clear button action, have to switch to another action and then delete that action
 33 | 
 34 | Confirmation and success message setup differ for buttons with actions and actions subscribed to button click event
 35 | 
 36 | Action Flow cannot be configured to publish an event on cancel
 37 | 
 38 | Weak and buggy expression language:
 39 | - Cannot use a variable as an array index
 40 | - The word 'return' in string literals makes the expressions fail to compile
 41 | - { '42' }[0] evaluates to '4' instead of '42'
 42 | - empty array is forbidden: {}
 43 | - no implicit cast of ANY to expected function parameter type
 44 | - The unique id of the current page instance cannot be determined. Have to use the arguments.callee.caller.arguments hack as in xcp.functions.event.getLastEventData
 45 | 
 46 | Cannot pass observables as outputs of nested Page Fragments
 47 | 
 48 | Cannot reorder columns in design mode
 49 | 
 50 | Not all expressions are validated. For instance, data action Custom Error Message is not
 51 | 
 52 | Relations can't have "Create" UI with automatic load of defaults
 53 | 
 54 | Cannot get r_object_id of an object created with the standard "Create" data action. (Maybe you can subscribe to "Object Created" event instead of action.success, but it will fire on any action)
 55 | 
 56 | Cannot obtain the path of the currently selected object in a Folder View in case it has multiple parents.
 57 | 
 58 | Cannot programmatically select a non-folder object in a Folder View
 59 | 
 60 | Cannot increase the Preview Mode Console Buffer size
 61 | 
 62 | Cannot remove a corrupted project from Recent Applications
 63 | 
 64 | Fragment Outputs of type Model cannot be stateless process results
 65 | 
 66 | Fragment Outputs of type Model cannot be repeating
 67 | 
 68 | Statless Processes cannot have context menus
 69 | 
 70 | Identically named widgets in a Page Fragment and its parent page cause glitches
 71 | 
 72 | Can only use Outputs in expressions inside Results List columns. Cannot use other widgets or data actions 
 73 | 
 74 | xCP lacks the concept of constants. As a workaround, we use session variables with pre-defined values and make sure we never assign these variables. The Application Parameters aren't suitable for that purpose becuase previously set values are not replaced with the new values on deploy.
 75 | 
 76 | Cannot use Picklist values or labels in expressions (to make sure at compile time a value is contained in a picklist).
 77 | 
 78 | Maximum Picklist value or label length of 60 characters is too small.
 79 | 
 80 | Hidden Results List columns not exported to CSV.
 81 | 
 82 | Radio Group cannot be cleared programmatically
 83 | 
 84 | Radio Group cannot treat its labels as HTML and render without escaping
 85 | 
 86 | Cannot handle Destroy or Destroy All Versions with business events
 87 | 
 88 | "Unrelated" business event is not fired when a related object is destroyed
 89 | 
 90 | Cannot edit custom attributes of relations. Have to unrelate/relate again.
 91 | 
 92 | Number Input cannot be cleared programmatically
 93 | 
 94 | Drop-down List lacks the public and subscribable "selectedchange" event
 95 | 
 96 | Events are reordered in XML when edited (bad for version control)
 97 | 
 98 | Random XML elements disappear or appear with a blank value in XML when saving an artifact (bad for version control)
 99 | 
100 | Process Activity XML is a one long line instead of CDATA (bad for version control)
101 | 
102 | An expression is a one long line instead of CDATA (bad for version control)
103 | 
104 | When working with huge forms (20+ input fields) have to repeat same set of actions:
105 | - add a process variable (and mark as input)
106 | - map a field to the process input
107 | - map the process variable to a java property with the copy function
108 | The mapping page becomes a mess because the variables and the java properties aren't sorted.
109 | 
110 | 
111 | We can't use a Page Fragment inside a Results List cell.
112 | We often need to display some tabular data in a one-column grid putting multiple widgets in a single cell. Now we resort to raw HTML inputs, but we lose the ability to calculate, validate, and react to events.
113 | 
114 | Page Fragment inputs (even static values) are blank at time of Page Load and Fragment Load events. Data Actions marked "On Page Load" often send blank values because of that.
115 | 
116 | Cannot use other attributes in the Attribute Default Value expression
117 | 


--------------------------------------------------------------------------------
/prog/glassfish/glassfish-faq.txt:
--------------------------------------------------------------------------------
  1 | Q: Inconsistent Module State
  2 | A: 
  3 | 
  4 | Q: [190208 23:30:45.707] SEVERE: "The SSL certificate has expired
  5 | A:
  6 |   keytool -delete -alias equifaxsecureca -keystore cacerts.jks -storepass ${keystore_pass}
  7 |   keytool -delete -alias gtecybertrustglobalca -keystore cacerts.jks -storepass ${keystore_pass}
  8 | 
  9 | Q: default master password / keystore password
 10 | A: changeit
 11 | 
 12 | Q:
 13 |   BufferUnderflowException
 14 |   at com.sun.enterprise.deployment.annotation.introspection.ConstantPoolInfo.containsAnnotation
 15 | A:
 16 |   https://github.com/payara/Payara/pull/1052/files
 17 |   https://stackoverflow.com/questions/28301584/javaee-glassfish-bufferunderflowexception
 18 |   https://github.com/payara/Payara/issues/959
 19 |   bug in ConstantPoolInfo.java:
 20 |   unhandled: METHODHANDLE/METHODTYPE/INVOKEDYNAMIC
 21 |   Fixed in:
 22 | 
 23 |     payara-blue-4.1.1.164
 24 |     payara-server-4.1.1.164
 25 |     payara-server-5.0.0.Alpha1
 26 | 
 27 | 
 28 |   Workaround: remove lambdas
 29 | 
 30 | Q:
 31 | [181002 10:32:19.629] INFO: "JACC Policy Provider: Failed Permission Check, context(v24testear/V24Handler-ejb_jar)- permission(("javax.security.jacc.EJBMethodPermission" "FastBean" "onChangeConnected,Local,org.foo.businessentity.infrastructure.infracomponents.InterfaceStateEm,org.foo.businessentity.BusinessEntity,org.foo.transaction.content.TyMessagePriorityEm"))" com.sun.enterprise.security.provider.BasePolicyWrapper$2 run
 32 | [181002 10:32:19.631] WARNING: "A system exception occurred during an invocation on EJB FastBean, method: public void org.foo.FastBean.onChangeConnected(org.foo.businessentity.infrastructure.infracomponents.InterfaceStateEm,org.foo.businessentity.BusinessEntity,org.foo.transaction.content.TyMessagePriorityEm)" com.sun.ejb.containers.BaseContainer postInvoke
 33 | [181002 10:32:19.631] WARNING: "" com.sun.ejb.containers.BaseContainer postInvoke
 34 | javax.ejb.AccessLocalException: Client not authorized for this invocation
 35 | 	at com.sun.ejb.containers.BaseContainer.preInvoke(BaseContainer.java:1960)
 36 | 	at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:210)
 37 | 	at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:88)
 38 | 	at com.sun.proxy.$Proxy234.onChangeConnected(Unknown Source)
 39 | 	at org.foo.__EJB31_Generated__FastBean__Intf____Bean__.onChangeConnected(Unknown Source)
 40 | 	at org.foo.SlowBean.onChangeConnected(SlowBean.java:209)
 41 | 	at org.foo.SlowBean.lambda$onFullyDeployed$0(SlowBean.java:117)
 42 | 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
 43 | 	at org.glassfish.enterprise.concurrent.internal.ManagedFutureTask.run(ManagedFutureTask.java:141)
 44 | 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
 45 | 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
 46 | 	at java.lang.Thread.run(Thread.java:748)
 47 | 	at org.glassfish.enterprise.concurrent.ManagedThreadFactoryImpl$ManagedThread.run(ManagedThreadFactoryImpl.java:250)
 48 | A:
 49 |   - Undeploy
 50 |   - See if no longer exists: domains/domainx/generated/policy/<appname>/
 51 |   - :
 52 |   I've deleted the directory domains/domainx/generated/policy/<appname>/
 53 |   and completly redeployed (not just restarted) the app.. its working now as
 54 |   expected.
 55 | 
 56 | 
 57 | 
 58 | Q: offload
 59 | A: 
 60 | 
 61 |   https://stackoverflow.com/a/42208689/447503
 62 | 
 63 |   asadmin set server.network-config.protocols.protocol.http-listener-1.http.scheme-mapping=X-Forwarded-Proto
 64 |   (Seems to work on 4.1.2)
 65 | 
 66 |   Apache httpd example:
 67 | 
 68 |         ProxyPreserveHost On
 69 |         RequestHeader set X-Forwarded-Proto "https"
 70 |         ProxyPass / http://localhost:8080/
 71 |         ProxyPassReverse / http://localhost:8080/
 72 | 
 73 |   ngnix
 74 |     proxy_set_header Host $host;
 75 |     proxy_set_header X-Forwarded-Proto https;
 76 | 
 77 |   alternatively add a filter to handle custom headers. 
 78 | 
 79 | 
 80 | Q: servlet filter for all appps
 81 | A: 
 82 |   put jar to
 83 |   glassfish\domains\domain1\lib\
 84 |   register it 
 85 |   glassfish\domains\domain1\config\default-web.xml
 86 | 
 87 | Q: java.lang.IllegalStateException: Could not find backup for factory javax.faces.context.FacesContextFactory. 
 88 | A:
 89 | - try changing <url-pattern>*</url-pattern> to <url-pattern>/*</url-pattern> in default-web.xml
 90 | - possibly duplicate faces implementation in classpath
 91 | 
 92 | Q: ManagedExecutorService: ExecutionException: javax.enterprise.concurrent.AbortedException: Module myapp is disabled
 93 | A: Don't use until app fully deployed
 94 | 
 95 | Q: Archive type of .../gfdeploy/... was not recognized
 96 | A: Restart Netbeans
 97 | 
 98 | Q: java.lang.IllegalStateException: Application validation fails for given application [EnterpriseApplication1] for jndi-name []
 99 | A: Two beans with same name in @ConnectionFactoryDefinition annotation
100 | 
101 | Q: Incorrect Transaction Support Level for this RAR
102 | A: Non-existent resourceAdapter in @ConnectionFactoryDefinition annotation
103 | 
104 | Q: NullPointerException at ServerPlatformUtils.createServerPlatform
105 | A: Safely ignored. Fixed in EclipseLink 2.6.2
106 | 
107 | Q: UnsupportedClassVersionError
108 | A: 
109 | If netbeans: Tools > Servers > Glassfish > Java > Java Platform
110 | If standalone: check AS_JAVA in asenv.* files. 
111 | 
112 | 
113 | asadmin.bat start-domain --debug
114 | asadmin.bat stop-domain
115 | 
116 | 9009
117 | 
118 | domains/domain1/autodeploy/
119 | .autodeploystatus - 
120 | 
121 | 
122 | bin>asadmin
123 | create-jdbc-connection-pool --restype javax.sql.DataSource --datasourceclassname oracle.jdbc.pool.OracleDataSource --property "user=saeaip_own04:password=saeaip_own04:url=jdbc\\:oracle\\:thin\\:@beethoven\\:1521\\:spm" aipds
124 | create-jdbc-resource --connectionpoolid aipds aipds
125 | 


--------------------------------------------------------------------------------
/unix/armbian/heatrobot.sh:
--------------------------------------------------------------------------------
  1 | #!/bin/bash
  2 | 
  3 | # Turn switch off and on when temperature not within range.
  4 | #
  5 | # Usage: heatrobot.sh 2>&1 | ( trap '' INT; ts )
  6 | # OR
  7 | # as a systemd service
  8 | 
  9 | # Millidegrees Celsius
 10 | TEMP_MIN=19000
 11 | TEMP_MAX=28000
 12 | 
 13 | # Seconds
 14 | DELAY_COOLOFF=450
 15 | DELAY_WARMUP=900
 16 | CHECK_PERIOD=120
 17 | 
 18 | # see: `gpio readall`
 19 | WPI_PIN=9
 20 | 
 21 | # Must be either a persistent device path or its hwmon symlink like: /sys/class/hwmon/hwmon[0-9]*/device
 22 | BLACKLIST_SENSORS=(
 23 |   /sys/devices/virtual/thermal/thermal_zone0
 24 |   #/sys/bus/w1/devices/28-00000c71ddc0
 25 |   #/sys/class/hwmon/hwmon0/device
 26 |   #/sys/class/hwmon/hwmon1/device
 27 | )
 28 | 
 29 | 
 30 | EMULATE=
 31 | #EMULATE=yes
 32 | 
 33 | if [ x"$EMULATE" = x"yes" ]; then
 34 |   DELAY_COOLOFF=5
 35 |   DELAY_WARMUP=10
 36 |   CHECK_PERIOD=2
 37 | fi
 38 | 
 39 | coproc HUNGP {
 40 |   read x || true
 41 | }
 42 | 
 43 | STATUS_OK=0
 44 | STATUS_FAIL=1
 45 | 
 46 | _mysleep() {
 47 |   read -t "${1:?}" <&"${HUNGP[0]}" || [ $? = 142 ]
 48 | }
 49 | 
 50 | 
 51 | mysleep() {
 52 |   echo "sleeping ${1:?}s"
 53 |   _mysleep "$@"
 54 | }
 55 | 
 56 | exec 4<&0
 57 | 
 58 | set_on() {
 59 |   :
 60 | }
 61 | 
 62 | kill_kbd() {
 63 |   :
 64 | }
 65 | 
 66 | trap 'set +e; set_on; kill_kbd; echo status="on" set, now exiting' EXIT
 67 | function errtrap {     es=$?;     echo "$0: line $1: Command exited with status $es.">&2; }; trap 'errtrap $LINENO' ERR
 68 | set -e
 69 | set -o pipefail
 70 | 
 71 | if [ x"$EMULATE" = x"yes" ]; then
 72 | 
 73 |   get_temp() {
 74 |     local _temp
 75 |     read _temp </dev/shm/heatrobot-temp
 76 |     temp=$((_temp - 0))
 77 |     if [ $temp = 0 -a x"$_temp" != x"0" ]; then
 78 |       >&2 echo "Invalid integer value: $_temp"
 79 |       false
 80 |       exit 1
 81 |     fi
 82 |     #echo "temp=$temp"
 83 |   }
 84 | 
 85 |   echo 20000 >/dev/shm/heatrobot-temp
 86 | 
 87 |   iftty=
 88 |   tty_settings=`stty -g` || iftty=:
 89 |   $iftty stty -icanon -echo
 90 | 
 91 |   kill_kbd() {
 92 |     {
 93 |       kill $KBD_PID
 94 |       wait $KBD_PID
 95 |     } 2>/dev/null
 96 |     # if interrupted during `read` built-in command then ERR trap stdin is the `read` input.
 97 |     $iftty stty "$tty_settings" <&4
 98 |   }
 99 | 
100 |   KBD_PID=
101 |   {
102 |     echo use arrow keys now...
103 |     # 1b5b44 left
104 |     # 1b5b43 right
105 |     # 1b5b41 up
106 |     # 1b5b42 down
107 |     
108 |     while read -r -d "" -n 1 c; do
109 |       if [ "$c" = $'\x1b' ]; then
110 |         read -r -d "" -n 1 c || break
111 |         if [ "$c" = $'[' ]; then
112 |           read -r -d "" -n 1 c || break
113 |           case $c in
114 |           $'\x41'|$'\x43') # up or right
115 |             get_temp
116 |             temp=$((temp + 1000))
117 |             echo "new temp: $temp"
118 |             echo $temp >/dev/shm/heatrobot-temp
119 |             ;;
120 |           $'\x42'|$'\x44') # down or left
121 |             get_temp
122 |             temp=$((temp - 1000))
123 |             echo "new temp: $temp"
124 |             echo $temp >/dev/shm/heatrobot-temp
125 |             ;;
126 |           esac
127 |         fi
128 |       fi
129 |       # printf '%s' "$c" | xxd
130 |       
131 |     done
132 |   } <&0 &
133 |   KBD_PID=$!
134 | 
135 |   set_off() {
136 |     power_status=$STATUS_FAIL
137 |   }
138 |   
139 |   set_on() {
140 |     power_status=$STATUS_OK
141 |   }
142 |   
143 |   is_on() {
144 |     return $power_status
145 |   }
146 | 
147 |   set_on
148 |   
149 | else
150 | 
151 |   gpio mode "${WPI_PIN:?}" OUT
152 | 
153 |   get_temp() {
154 |     local d canon h _temp
155 |     local -A BLACKLIST_SENSORS_CANON
156 |     BLACKLIST_SENSORS_CANON=()
157 |     
158 |     shopt -s nullglob
159 |     for d in "${BLACKLIST_SENSORS[@]}"; do
160 |       #echo "add blacklisted: $d"
161 |       if ! canon=$(readlink -f "$d"); then
162 |         >&2 echo "path check failed for $d"
163 |         continue
164 |       fi
165 |       for h in "$canon"/hwmon[0-9]*/temp1_input "$canon"/hwmon/hwmon[0-9]*/temp1_input; do
166 |         #echo "found temp1_input as: $h"
167 |         BLACKLIST_SENSORS_CANON["$h"]=x
168 |         continue 2
169 |       done
170 |       >&2 echo "failed to find temp1_input for $d"
171 |     done
172 |     
173 |     temp=999999
174 |     shopt -s nullglob
175 |     for d in /sys/class/hwmon/hwmon[0-9]*/temp1_input; do
176 |       #echo "checking temperature of: $d"
177 |       canon=$(readlink -f "$d")
178 |       if [[ -v "BLACKLIST_SENSORS_CANON[$canon]" ]]; then
179 |         :
180 |         #echo "is blacklisted"
181 |       else
182 |         _temp=$(< "$d")
183 |         if [ "$temp" -gt "$_temp" ]; then
184 |           temp=$_temp
185 |         fi
186 |       fi
187 |     done
188 |   
189 |     # if no sensors, then power must always be on
190 |     if [ 999999 = "$temp" ]; then
191 |       >&2 echo "No sensors found"
192 |       temp=-999999
193 |     fi  
194 |   }
195 |   
196 |   set_off() {
197 |     :
198 |     gpio write "${WPI_PIN:?}" 1
199 |   }
200 | 
201 |   set_on() {
202 |     gpio write "${WPI_PIN:?}" 0
203 |   }
204 |   
205 |   is_on() {
206 |     local res;
207 |     res=$(gpio read "${WPI_PIN:?}")
208 |     return $res
209 |   }
210 | 
211 | fi # EMULATE
212 | 
213 | exec 0<&-
214 | 
215 | # set -E # inherit ERR trap
216 | 
217 | while true; do
218 |   if is_on; then
219 |     echo "power is initially on"
220 |     mysleep $DELAY_WARMUP
221 |   else
222 |     echo "power is initially off"
223 |     mysleep $DELAY_COOLOFF
224 |   fi
225 |   
226 |   while true; do
227 |     get_temp
228 |     
229 |     if is_on; then
230 |       if [ $temp -gt $TEMP_MAX ]; then
231 |         echo "temp=$temp too high, powering off"
232 |         set_off
233 |         break
234 |       else
235 |         echo "temp=$temp is ok, keep power on"
236 |       fi
237 |     else
238 |       if [ $temp -lt $TEMP_MIN ]; then
239 |         echo "temp=$temp too low, powering on"
240 |         set_on
241 |         break
242 |       else
243 |         echo "temp=$temp is ok, keep power off"
244 |       fi
245 |     fi
246 |     
247 |     _mysleep "$CHECK_PERIOD"
248 |   done
249 | done
250 | 


--------------------------------------------------------------------------------
/prog/gdb/gdb-faq.txt:
--------------------------------------------------------------------------------
  1 | Q: ellipsis ... print full value of a long string
  2 | A: set print elements 0
  3 | 
  4 | Q: function return value truncated
  5 | A: 
  6 |   7.6+:
  7 |     p ((char * (*) (const char *)) getenv) ("PATH")
  8 | 
  9 |   7.3: ?
 10 | 
 11 | Q: reopen stdout
 12 | A:
 13 | p dup2(open("/tmp/reopened.stdout", 1089), 1)
 14 | p dup2(open("/tmp/reopened.stderr", 1089), 2)
 15 | 
 16 | # O_WRONLY | O_APPEND | O_CREAT
 17 | 
 18 | chmod 755 /tmp/reopened.stdout /tmp/reopened.stderr
 19 | 
 20 | 
 21 | Q: determine DWARF version
 22 | A:
 23 |     $ readelf --debug-dump=info ./test.o | grep -A 2 'Compilation Unit @'
 24 |       Compilation Unit @ offset 0x0:
 25 |        Length:        0x4a (32-bit)
 26 |        Version:       4
 27 | 
 28 | Q: disassemble raw binary
 29 | A:
 30 |     gdb true
 31 |     
 32 |     info file
 33 |     Entry point: 0x401000
 34 |     
 35 |     b *0x401000
 36 |     run
 37 |     set $save_esp=$esp
 38 |     set $buffer=LocalAlloc(0,40000)
 39 |     set $buffer=malloc(400000)
 40 |     print (void*)$buffer
 41 |     restore linux6.bin binary $buffer
 42 |     
 43 |     x/10i $buffer
 44 | 
 45 | 
 46 | 
 47 | Q: disable pagination
 48 | A:
 49 | set height 0
 50 |  or 
 51 | set pagination off
 52 | 
 53 | Q: data breakpoint
 54 | A: watch/rwatch/awatch *0xADDR
 55 | 
 56 | Q: gdbtui disassembly
 57 | A:
 58 |   layout asm
 59 | or
 60 |  layout split
 61 | 
 62 | disass funcname
 63 | 
 64 | Q: amd64
 65 | A: 
 66 | windows: It uses registers RCX, RDX, R8, R9 for the first four integer or pointer arguments
 67 | linux: rdi, rsi, rdx, rcx; c++: "this" pointer goes to RDI
 68 | 
 69 | 
 70 | Q: address breakpoint
 71 | A: break *address
 72 | 
 73 | ********************************************************************************
 74 | Q: redirect program input
 75 | A:
 76 | set args < input.txt
 77 | or
 78 | run < input.txt
 79 | 
 80 | (Both not working in Cygwin)
 81 | ********************************************************************************
 82 | Q: gdb readline history
 83 | A: set history save on
 84 | ********************************************************************************
 85 | Q: eval
 86 | A: 
 87 | -eval-command command
 88 | -ex command
 89 |     Execute a single gdb command.
 90 | 
 91 | 
 92 | ********************************************************************************
 93 | Q: watch
 94 | A:
 95 | define hook-stop
 96 |   ...commands to be executed when execution stops
 97 | end
 98 | ********************************************************************************
 99 | Q: continue in hook-stop
100 | A: 
101 | ********************************************************************************
102 | Q: handle breakpoints
103 | A:
104 | b foo
105 | commands
106 | backtrace
107 | continue 200
108 | end
109 | ********************************************************************************
110 | Q: conditional breakpoint
111 | A: break ... if cond
112 | 
113 |     break open if $_regex((char*)$rdi, "^/dev/tty")
114 | 
115 | Q: string value to python
116 | A:
117 |     
118 |     define foo
119 |         # reset convenience var., or get 'Too many array elements'
120 |         set $foo_arg0 = 0
121 |         # $arg0 expanded too early, can't use it directly in python
122 |         set $foo_arg0 = $arg0
123 |         #
124 |         # parse_and_eval() affected by print settings, wtf?
125 |         #
126 |         # don't print address of a string
127 |         set print addr off
128 |         # print long string
129 |         set print elements 0
130 |         # get rid of '<repeats n times>'
131 |         set print repeats unlimited
132 |         #
133 |         # parse_and_eval() returns quoted string. Unquote with eval
134 |         py s = eval(str(gdb.parse_and_eval("$foo_arg0")))
135 |         py print s
136 |     end
137 |     
138 |     (gdb) foo "abc"
139 |     abc
140 |     (gdb) foo $val
141 |     def
142 |     (gdb) foo (char*)$rdi
143 |     /home/il/gammu-git/src/gammu/libgammu/tls/x86_64/libpthread.so.0 `
144 | 
145 | ********************************************************************************
146 | Q: gdb print truncates long strings
147 | A: set print elements 0
148 | ********************************************************************************
149 | Q: rc file, gdbrc
150 | A: ./.gdbinit ~/.gdbinit
151 | ********************************************************************************
152 | Q: 
153 | A:
154 | thread apply all backtrace
155 | ********************************************************************************
156 | Q: step out
157 | A: 
158 | finish
159 | ********************************************************************************
160 | Q: set current frame
161 | A: 
162 | frame n
163 | ********************************************************************************
164 | Q: set current thread
165 | A: 
166 | thread threadno
167 |     Make thread number threadno the current thread
168 | ********************************************************************************
169 | Q: current module / current shared library
170 | A:
171 |   info symbol <addr>
172 |   info symbol $pc
173 |   info symbol funcname
174 | ********************************************************************************
175 | Q: 
176 | $ gdb --core=core
177 | (gdb) info shared
178 | No shared libraries loaded at this time.
179 | 
180 | A:
181 | $ gdb --args prog
182 | (gdb) start
183 | (gdb) core core
184 | kill? y
185 | (gdb) info shared
186 | ********************************************************************************
187 | Q: (gdb) print c
188 |    $1 = 0xffbffa34 <error reading variable>
189 |    (gdb) x/s c
190 |    0xff34c2b0 <.LLC4>:      Converting character sets: Invalid argument.
191 | A: gdb bug http://sourceware.org/bugzilla/show_bug.cgi?id=10908
192 | ********************************************************************************
193 | Q: cast to array
194 | A: It's called Artificial arrays http://www.chemie.fu-berlin.de/chemnet/use/info/gdb/gdb_9.html#SEC54
195 | print *(short[2]*)p
196 | ********************************************************************************
197 | Q: Make breakpoint pending on future shared library load?
198 | A: set breakpoint pending on
199 | ********************************************************************************
200 | Q: define a custom command
201 | A:
202 |      define adder
203 |        if $argc == 2
204 |          print $arg0 + $arg1
205 |        end
206 |        if $argc == 3
207 |          print $arg0 + $arg1 + $arg2
208 |        end
209 |      end
210 | ********************************************************************************
211 | Q: ignore signal
212 | A: handle SIGNAME ignore
213 | 'nopass' is the synonym for 'ignore'
214 | See also: handle SIGNAME nostop
215 | ********************************************************************************
216 | 


--------------------------------------------------------------------------------
/unix/cygwin/cygwin-faq.txt:
--------------------------------------------------------------------------------
  1 | Q: stat system call on Google Drive causes ReadFile call
  2 | A: 
  3 |   mkdir /cygnotexec
  4 |   mount -obind,notexec "/cygdrive/c/ClusterStorage/gdrive/basinilya@gmail.com" "/cygnotexec/basinilya@gmail.com"
  5 | 
  6 | Q: add trusted authority
  7 | A:
  8 |        QUICK HELP 1: To add a certificate in the simple PEM or DER file formats to the list of CAs trusted on the system:
  9 |        •   add it as a new file to directory /etc/pki/ca-trust/source/anchors/
 10 |        •   run update-ca-trust extract
 11 | 
 12 | Q: tftp server
 13 | A:
 14 |   Install packages: tftp tftp-server xinetd
 15 |   
 16 |   xinetd-config
 17 |   
 18 |   tftpd-config
 19 |   
 20 |   # enable the service
 21 |   vim /etc/xinetd.d/tftp
 22 |   
 23 |   cygcheck -l tftp-server
 24 |   
 25 |   # fix xinetd: PID 2280: Service tftp missing attribute user - DISABLING 
 26 |   mkpasswd.exe | sed 's/^[^:]*\(cyg_server\):/\1:/;t;d' >>/etc/passwd
 27 |   
 28 |   # fix tftpd: PID 2844: cannot drop privileges: No error
 29 |   mkpasswd.exe | sed 's/^[^:]*\(tftpd\):/\1:/;t;d' >>/etc/passwd
 30 |   editrights -u tftpd -a SeDenyInteractiveLogonRight
 31 |   editrights -u tftpd -a SeDenyRemoteInteractiveLogonRight
 32 |   net user tftpd /active:YES
 33 | 
 34 |   # deny access from all hosts to programs with argv[0]="tftpd"
 35 |   echo "tftpd: ALL" >>/etc/hosts.deny
 36 | 
 37 |   # allow access from subnet to programs with argv[0]="tftpd"
 38 |   echo "tftpd: 192.168.56." >>/etc/hosts.allow
 39 | 
 40 |   
 41 |   cygrunsrv -S xinetd
 42 | 
 43 |   ls /var/lib/tftpboot/
 44 | 
 45 | Q: pip-compile prerequisites
 46 | A: libpq-devel libffi-devel python38-devel
 47 | 
 48 | Q: ??? prerequisites
 49 | A: perl-IO-stringy
 50 | 
 51 | Q: msgconvert prerequisites
 52 | A: perl-Capture-Tiny, libcrypt-devel, perl-MRO-Compat, perl-Module-Pluggable, perl-Test-Fatal, perl-MIME-Types perl-Try-Tiny perl-Test-Needs perl-Role-Tiny perl-Sub-Quote perl-Sub-Name perl-Class-XSAccessor perl-Sub-Exporter perl-Data-OptList perl-Test-LeakTrace perl-Params-Util perl-Sub-Install perl-Devel-StackTrace perl-Encode-Locale perl-File-Which perl-IPC-System-Simple perl-URI perl-IO-String perl-ExtUtils-Depends libnsl-devel perl_pods
 53 | 
 54 | Q: cpan prerequisites
 55 | A: BUILD-ESSENTIAL, wget, unzip, perl-Module-Build, perl-CPAN-DistnameInfo, perl-inc-latest, perl-ExtUtils-MakeMaker
 56 | 
 57 | Q: base-devel, build-essential
 58 | A:
 59 |   autoconf
 60 |   automake
 61 |   binutils
 62 |   bison
 63 |   file
 64 |   findutils
 65 |   flex
 66 |   gawk
 67 |   gcc
 68 |   gettext
 69 |   gettext-devel
 70 |   grep
 71 |   groff
 72 |   gzip
 73 |   libtool
 74 |   m4
 75 |   make
 76 |   patch
 77 |   pkgconf
 78 |   sed
 79 |   texinfo
 80 |   which
 81 | 
 82 | 
 83 | Q: /etc/fstab ignored 
 84 | A: delete HKEY_CURRENT_USER\Software\Cygnus Solutions
 85 | 
 86 | Q: 
 87 |   address space needed by 'cygXfixes-3.dll' (0x600000) is already occupied
 88 |   rebaseall doesn't help
 89 | A:
 90 |   /usr/bin/rebase -is | /usr/bin/tail
 91 |   ##/usr/bin/cygGL-1.dll base 0x6ff50000 size 0x00080000
 92 |   ##/usr/bin/cygEGL-1.dll base 0x6ffd0000 size 0x00029000
 93 |   /usr/bin/rebase -b 0x70000000 /usr/bin/cygXfixes-3.dll
 94 | 
 95 | 
 96 | Q: X11 server
 97 | A: X-start-menu-icons (outdated)
 98 | 
 99 | Q: xinit: connection to X server lost
100 | A: 
101 |   alias runx="run xwin -multiwindow -noprimary"
102 |   #alias runx="run xwin -multiwindow -noprimary -auth /home/il/serverauth"
103 | 
104 | ********************************************************************************
105 | 
106 | Q: Warning: No xauth data; using fake authentication data for X11 forwarding.
107 | A: 
108 | 1) Run startxwin with "-auth" flag, for example:
109 | /usr/bin/startxwin -- -noprimary -auth
110 | 
111 | 2) install xauth package and add to ~/.startxwinrc:
112 | #!/bin/sh
113 | xauth add :0 . `mcookie`
114 | 
115 | 
116 | ********************************************************************************
117 | 
118 | Q: musthave packages
119 | A: procps, util-linux, mintty, vim
120 | ********************************************************************************
121 | 
122 | Q: move configured openssh server into a new clean cygwin installation
123 | A:
124 | install openssh, inetutils
125 | 
126 | mv $oldcyg/etc/groups /etc/
127 | mv $oldcyg/etc/passwd /etc/
128 | mv $oldcyg/etc/ssh* /etc/
129 | mv $oldcyg/var/empty /var/
130 | mv $oldcyg/var/log/sshd.log /var/log/
131 | 
132 | ********************************************************************************
133 | Q: non-English characters are question marks in man pages
134 | A: /etc/man.conf: NROFF		/usr/bin/preconv -e UTF-8 | /usr/bin/nroff -c -mandoc 2>/dev/null
135 | ********************************************************************************
136 | Q: command line package
137 | A: cyg-apt
138 | ********************************************************************************
139 | Q:
140 | change NTFS permissions for symlinks
141 | A:
142 | find / -mount -type l -printf '"%p"\n' | \
143 |   xargs bash -c 'chown -h $UID "$@" && for f in "$@"; do echo "$f.forcygpath"; done' _ | \
144 |   cygpath -w -f - | while read -r f; do cacls "${f%.forcygpath}" /E /G "BUILTIN\Users:W"; done
145 | ********************************************************************************
146 | Q: restore /etc/hosts
147 | A:
148 | rm /etc/hosts
149 | ln -s "$SYSTEMROOT\system32\drivers\etc\hosts" /etc/hosts
150 | chown -h Admin /etc/hosts
151 | ********************************************************************************
152 | Q: nfs
153 | A:
154 | - install nfs package
155 | - apply nfs-server-config.patch (localizes 'Guest' and 'Administrators' names)
156 | - run nfs-server-config
157 | - optionally add mount points to fstab: 
158 |      C:/Documents\040and\040Settings /repo ntfs binary 0 0
159 | - optionally create map files in /etc/nfs/ to map remote and local users
160 |   bob.map:
161 |     uid	100	43290
162 | 
163 | - edit /etc/exports
164 |     /pub				*(rw,anonuid=501,anongid=546)
165 |     /repo				192.168.100.101(rw,map_static=/etc/nfs/bob.map) 192.168.100.102(rw,map_static=/etc/nfs/dioptase.map)
166 | 
167 | - Careful with NTFS permissions: nfsd won't even try to access windows folders
168 |   if it thinks that nfsd user or client user has no right to access them.
169 |   For example, you can't mount "C:\Documents and Settings\user" on remote
170 |   machine, because windows user "nfsd" has no unix permission to access 
171 |   directory "user". But you can mount "C:\Documents and Settings" and use
172 |   symlink to "user", because this way nfsd will impersonate itself as "user"
173 |   before checking unix permission on folder "user".
174 | 
175 | - mount commands:
176 |     Linux:   mount -t nfs john:/some /mnt/there -overs=2,nolock # nolock required for old server
177 |     Solaris: mount -F nfs john:/some /mnt/there
178 | 
179 | - You don't have to remount if nfs server restarts, but if performance degrades, remount.
180 | 


--------------------------------------------------------------------------------
/prog/eclipse/eclipse-faq.txt:
--------------------------------------------------------------------------------
  1 | Q:
  2 |     org.gradle.tooling.BuildActionFailureException: The supplied phased action failed with an exception.
  3 |     ...
  4 |     	at org.eclipse.buildship.core.internal.workspace.EclipseModelUtils.runPhasedModelQuery(EclipseModelUtils.java:111)
  5 |     ...
  6 |     Caused by: BUG! exception in phase 'semantic analysis' in source unit '_BuildScript_' Unsupported class file major version ***
  7 |     	at org.gradle.groovy.scripts.internal.DefaultScriptCompilationHandler.compileScript(DefaultScriptCompilationHandler.java:160)
  8 |     ...
  9 |     Caused by: java.lang.IllegalArgumentException: Unsupported class file major ***
 10 |     	at groovyjarjarasm.asm.ClassReader.<init>(ClassReader.java:199)
 11 | A:
 12 |   Your fixed version of Gradle is too old
 13 |   Go to Window > Preferences > Gradle > Gradle distribution
 14 |   and change from "Local installation directory" to "Gradle wrapper"
 15 | 
 16 | Q: ???
 17 | A:
 18 | lifecycle-mapping-metadata.xml
 19 | 
 20 | 
 21 | Q: Hot swap + Lombok + ECJ + Ant
 22 | A:
 23 |   Since the release of Java 8 the Eclipse compiler creates byte code that cannot be
 24 |   hot swapped into a loaded class compiled with JDK. The workaround is to initially
 25 |   build the project using Eclipse Compiler for Java (ECJ) aka JDT Compiler.
 26 |   Our Ant scripts already have a property for that and it can be enabled on the
 27 |   command line: -Djavac.compiler=org.eclipse.jdt.core.JDTCompilerAdapter  
 28 |   The problem with ECJ is it cannot load Annotation Processors as easily as javac
 29 |   does and since we added Lombok the ECJ compilation fails with inability to load the
 30 |   Lombok annotations or worse, Lombok annotations being ignored causing unexpected
 31 |   sanity errors.
 32 |   
 33 |   The solution is to run Ant build in a Separate JRE and load the Lombok libraries in
 34 |   accordance to the guide.
 35 |   
 36 |       Download lombok.jar v1.18.24 or higher: (there's a known problem with v1.18.18
 37 |       bundled with Eclipse and there's another problem with lombok-1.18.4.jar we ship
 38 |       ourselves: Ant terminates instantly)
 39 |           https://projectlombok.org/download
 40 |       Download ecj-4.19.jar - the nearest to eclipse-jee-2021-03-R-win32-x86_64 and
 41 |       still runnable in JRE8
 42 |           https://archive.eclipse.org/eclipse/downloads/
 43 |       Add the argument on the tab "Main": 
 44 |          -Djavac.compiler=org.eclipse.jdt.core.JDTCompilerAdapter
 45 |       Add an external Jar on the tab "Classpath": ecj-4.19.jar
 46 |       On the tab "JRE"
 47 |           Switch to "Separate JRE" and choose the previously installed OpenJDK 8
 48 |           In "VM arguments" add:
 49 |             -Xbootclasspath/a:C:\Path\To\lombok.jar
 50 |             -javaagent:C:\Path\To\lombok.jar
 51 |       Deploy the app, attach the remote debugger and try to edit method bodies: the
 52 |       changes should be applied without problems
 53 | 
 54 | Q: download latest ECJ
 55 | A: https://archive.eclipse.org/eclipse/downloads/
 56 | 
 57 | Q: External tool builder not run automatically on source file save
 58 | A: On "Targets" tab select a target for auto builds
 59 | 
 60 | Q: .class files visible in "Open Resource"
 61 | A: Open the "Navigator" view, navigate to the project output folder, open folder properties and set the "Derived" checkbox
 62 | 
 63 | Q: JDK internal class not visible in "Open Type"
 64 | A: Window > Preferences > Java > Appearance > Type Filters
 65 | 
 66 | Q: console buffer size
 67 | A: workspace\.metadata\.plugins\org.eclipse.core.runtime\.settings\org.eclipse.debug.ui.prefs
 68 |   Console.highWaterMark=8008029
 69 |   Console.lowWaterMark=8000029
 70 | 
 71 | Q: good decompiler
 72 | A: Enhanced Class Decompiler
 73 |   https://marketplace.eclipse.org/content/enhanced-class-decompiler#comment-6327
 74 | 
 75 | Q: slow step over java
 76 | A:
 77 |   https://bugs.eclipse.org/bugs/show_bug.cgi?id=530440
 78 |   uncheck "show method result"
 79 | 
 80 | Q: decompiler of choice
 81 | A: enhanced class decompiler
 82 | 
 83 | Q: run on server maven war overlay resources missing
 84 | A: open pom.xml, remove overlay dependecy, save, add overlay dependency, save
 85 | 
 86 | Q: maven generated resources
 87 | A:
 88 |   Window/Preferences/Maven/Discovery/Open Catalog
 89 |     - apt connector
 90 |     - buildhelper connector
 91 |   
 92 |   Window/Preferences/Maven/Annotation Processing
 93 |     Automatically
 94 |   
 95 |   Artifacts containing annotation processors must be installed to local repo.
 96 |   Make sure these artifact maven projects are not opened in Eclipse, or the generated .factorypath will lack some M2_REPO/**/*.jar
 97 | 
 98 | Q: Unsupported location: SOURCE_PATH
 99 | A: 
100 |   Both javac and Eclipse don't support SOURCE_PATH, but javac throws FileNotFoundException and Eclipse throws IllegalArgumentException, which is often not caught by processors
101 | 
102 | Q: source not found
103 | A: 
104 |   - If you want to add sources from another project libraries (native eclipse java project) then make sure that project exports all its dependencies 
105 |   - Add seemingly unrelated projects to source path
106 |   - Try "Remote Java Applicatopn". It's more capable than local
107 |   - Decompile and try to compile the class in question. Add missing dependencies to project classpath
108 | 
109 | Q: The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path	index.jsp	/myweb/src/main/webapp	line 1	JSP Problem
110 | A: 
111 |     Maven
112 | 
113 |     <dependency>
114 |         <groupId>javax.servlet</groupId>
115 |         <artifactId>javax.servlet-api</artifactId>
116 |         <version>3.1.0</version>
117 |         <scope>provided</scope>
118 |     </dependency>
119 | 
120 | 
121 | Q: error(s)_during_the_evaluation for watch expression
122 | A: possibly incomplete classpath. Put a conditional breakpoint and see the error
123 | 
124 | Q: There's no attempt to evaluate a watch expression: blank value column and no error message 
125 | A:
126 | 
127 | Q: "Source not found" during debug despite source found during development 
128 | A: 
129 | 
130 | Q: Alter $PATH at .launch
131 | A: ${system_property:path.separator}${env_var:PATH}
132 | 
133 | 
134 | Q: access restriction in rt.jar
135 | A:
136 |     Go to the Build Path settings in the project properties.
137 |     Remove the JRE System Library
138 |     Add it back; Select "Add Library" and select the JRE System Library. The default worked for me.
139 | ********************************************************************************
140 | Q: Attribute 'attrname' is not allowed to appear in element 'elem', XML Catalog
141 | A: 
142 |   1) Eclipse is right, fix your XML
143 |   2) download the xsd, add missing attr into it, go to preferences, XML Catalog, 
144 |      add your modified xsd to it
145 |      key type: Schema location
146 |      key     : the original xsd url (if xsi:schemaLocation="a b", use "b" or try both)
147 | ********************************************************************************
148 | Q: m2eclipse plugin gives NPEs when importing projects
149 | A: don't use m2eclipse, use mvn eclipse:eclipse
150 | ********************************************************************************
151 | Q: organize imports, do not expand asterisks
152 | A:
153 |     Choose 'Window -> Preferences...' menu.
154 |     Choose 'Java -> Code Style -> Organize Imports' in the left pane.
155 |     Set the 'Number of static imports needed for .*' to '1' in the right pane.
156 |     Click 'OK' button.
157 | ********************************************************************************
158 | Q: strip javadocs from .java files
159 | A:
160 | select projects
161 | Search->File
162 | Containing text:
163 | ((?<!\\)"([^"]|(?<=\\)")*")|(/\*\*(?s:(?!\*/).)*\*/)
164 | Regular expression: checked
165 | File name patterns: *.java
166 | Scope: Selected resources
167 | Replace...
168 | \1
169 | ********************************************************************************
170 | 


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/prog/documentum/xcp-editable-grid.txt:
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  1 | Results List / Allow inline editing
  2 | Gotchas
  3 | 
  4 | ===========================================================================================
  5 | If you render a boolean column as HTML with value '<input type="checkbox" checked>',
  6 | edit the row, change true to false and save the changes by pressing "Update"
  7 | the checkbox will stay checked even though the new HTML has no "checked" attribute: '<input type="checkbox">'.
  8 | 
  9 | That's because ExtJS is trying to merge the new HTML value into the existing input element instead of replacing it.
 10 | ExtJS uses Ext.dom.Fly.prototype.syncContent and this method does not call Element.prototype.removeAttribute
 11 | 
 12 | The workaround is to use different number of elements: ExtJS will then just replace innerHTML:
 13 | 
 14 |   '<input type="checkbox" disabled '
 15 |   + ifElseStr(
 16 |     Outputs.bool_value
 17 |     , 'checked /><span x-comment="Without this, Ext.dom.Fly.prototype.syncContent wont call dest.removeAttribute(checked)"></span>'
 18 |     , '/>')
 19 | 
 20 | Also, avoid HTML comments, because Ext.dom.Fly.prototype.syncContent will fail with error trying to sync the comment node.
 21 | 
 22 | ===========================================================================================
 23 | Entering the edit mode requires double clicking a row or pressing Enter.
 24 | It's not obvious how to edit rows in a mobile browser.
 25 | 
 26 | ===========================================================================================
 27 | The roweditstart fires twice when you enter the edit mode by pressing Enter.
 28 | It fires one time when you double click the row.
 29 | 
 30 | ===========================================================================================
 31 | If you press "Add" and then press "Cancel" the new row remains in the store, although it has no data.
 32 | On the other hand, such rows don't get into the "All rows" expression property.
 33 | 
 34 | ===========================================================================================
 35 | If you hide a column the editor fields are still created in runtime. It's useful when you need a hidden
 36 | widget to maintain the state, because a widget outside of the editor cannot refer the widgets inside,
 37 | because the visibility scope differs.
 38 | 
 39 | However, editor widgets can publish custom events that the outside widgets and interactions can subscribe to.
 40 | 
 41 | ===========================================================================================
 42 | The editor widget is created automatically in the designer when you create a new column.
 43 | You cannot drag a widget of another type from the palette to the editor panel.
 44 | However, you can drag a widget away from the editor panel. This will dissociate it from the editor.
 45 | To restore the editor widget without re-creating the column go to the column properties/General/Editing
 46 | and choose another editor type in the dropdown.
 47 | 
 48 | ===========================================================================================
 49 | Only certain widget types are awailable to each data type:
 50 | Integer, Float: Value Display, Number Input, Drop-down List
 51 | String, HTML, Image: Text Area, Text Input, Value Display, Drop-down List
 52 | Date-time: Date-time Input, Value Display
 53 | Boolean: Checkbox, Value Display, Drop-down List
 54 | Picklist: Drop-down List
 55 | 
 56 | The good news is, if you initially choose some column type, create an editor widget and then choose
 57 | another column type (not another data output), the editor widget remains.
 58 | 
 59 | This is useful, for instance, when you need a checkbox editor and an HTML cell.
 60 | 
 61 | ===========================================================================================
 62 | When you change the editor type all its properties are lost including the widget id, the value expression
 63 | and its events. Make a copy before doing so.
 64 | 
 65 | ===========================================================================================
 66 | It is allowed to associate more than one column with the same data output.
 67 | However, when you save edits to a row the field values from all columns associated with this data output will
 68 | be stored as an array in the current store record. When editing this record again, ExtJS will attempt to
 69 | assign the same array to all related editor fields. Most editors are single-valued so only the first element
 70 | of the array will be set. The exception is Value Display with "Has multiple values" checked. It will have all
 71 | the values.
 72 | 
 73 | ===========================================================================================
 74 | There are roweditstart and rowedited events, but there's no roweditcancel event.
 75 | Therefore you can't tell if the grid is in edit mode.
 76 | 
 77 | ===========================================================================================
 78 | When entering the edit mode a field value is reset to the value from the data output without
 79 | firing the change event.
 80 | 
 81 | If a value expression is evaluated and its result differs from the data output then the change event will fire.
 82 | 
 83 | ===========================================================================================
 84 | The validation expressions might not always trigger, probably because the change event not always fires.
 85 | The workaround for now is to add more events to the validation:
 86 | selectionchange, rowedited, rowadded, rowmoved, rowremoved.
 87 | 
 88 | It's still unclear how to properly solve this.
 89 | 
 90 | ===========================================================================================
 91 | Constants expressions don't work as expected for editor fiels in "General/Value" and "Validation/Is Mandatory":
 92 | "Is Mandatory: true" does not work at all. "Value: 'foo'" only works for the first time.
 93 | That's because the editor widgets are created when you enter the edit mode for the first time.
 94 | At this stage "Is Mandatory: true" will not be evaluated, because the value hasn't changed.
 95 | As a special case, xCP will evaluate "Value: 'foo'" at widget's creation, but that's all.
 96 | When you start editing another row the new value will be loaded to the widget from the store record ignoring the
 97 | xCP value expression.
 98 | 
 99 | The workaround for "Is Mandatory" is to create an expression that is always evaluated when the value of the field
100 | changes, yet always resolves to true: isEmptyOrNull(widgets.ed_some.value) OR true
101 | 
102 | The workaround for "Value" is to keep the value expression blank and let it load from the record.
103 | If it's necessary to reset the field to some initial value on each edit or to set a default value
104 | for new records then make it depend on selected_row:
105 |   { 'constant-value', widgets.results_list.selected_row.processVariables.some }[0]
106 | or:
107 |   without({ widgets.results_list.selected_row.processVariables.some, widgets.ed_some.value }, '')[0]
108 | 
109 | Using selected_row is generally a bad thing. It has the following side effect: when you exit the edit
110 | mode and select other rows without editing them the value expressions will be re-evaluated, because
111 | the widgets still exist on the hidden editor panel.
112 | 
113 | If a field is mandatory or is validated then it may become invalid and its validation errors will be propagated
114 | up the container tree. The container's isValid property will become false.
115 | The Error Display widget may show the errors.
116 | 
117 | The possible workaround is subscribing to roweditstart, but it's not tested yet.
118 | 
119 | ===========================================================================================
120 | The Error Display widget does not prepend the messages with the column names.
121 | This is because it uses the invalid fields' label property and it's empty by default.
122 | If you set some label it takes too much space in the editor.
123 | 
124 | The current workaround is applying "display: none" to editor field labels with a custom css.
125 | 
126 | ===========================================================================================
127 | 


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