├── README.md
├── template.sh
├── generate
└── LICENSE


/README.md:
--------------------------------------------------------------------------------
 1 | ![Bash Script Generator](https://cloud.githubusercontent.com/assets/9037816/22258834/0b837816-e231-11e6-971f-f2dd9b940e21.png)
 2 | # Bash Script Generator
 3 | Generates a Bash Script Template that handles Arguments and Flags Cleanly.
 4 | 
 5 | This GitHub Repository is released under the GNU v3 License, so hack away as long as you keep it open-source. To access the generator script directly, a convenient short link is provided: [bit.ly/gen-bash-script](http://bit.ly/gen-bash-script).
 6 | 
 7 | **Authored by: [Mad Robot](https://github.com/madrobot)**
 8 | 
 9 | ## Features
10 | The following features are supported:
11 | 
12 | - Single dash and double dash options (`-d` OR `--date`)
13 | - Boolean options (`-p` without a value)
14 | - Compounded options (`-dpi` translates to `-d`, `-p` and `-i`)
15 | - Multiple options exported in arrays (`--date foo1 -d foo2 --date foo3` exports to `"foo1", "foo2", "foo3"`)
16 | - Catch-all Method
17 | - Custom Methods
18 | - Parsed options are exported into `EXPORTS`
19 | - Parsed option values are exported to `OPTS_<varname>`
20 | - Parsed arguments are exported into `ARGS` also passed to custom methods as `${@}`
21 | - Autocompletion enabled with a generator method
22 | 
23 | ## Running the Generator
24 | To run the generator you simply execute the command below from your terminal:
25 | 
26 | ```
27 | curl -Ls http://bit.ly/gen-bash-script | bash > ScriptFilename.sh
28 | ```
29 | 
30 | Or to customize your generated script, execute this command instead:
31 | 
32 | ```
33 | curl -Ls http://bit.ly/gen-bash-script | bash -s -- -n ScriptName -v ScriptVer -c yes > ScriptFilename.sh
34 | ```
35 | 
36 | The generator script has the following options:
37 | 
38 | - `-n|--name` for Script Name
39 | - `-v|--version` for Script Version
40 | - `-c|--catch-all` for Catch All toggle
41 | 
42 | The output will be directed to `stdout` so you can easily forward the output to a file stream.
43 | 
44 | ## Configuring the Generated Template
45 | There will be a few options for you to configure the generated template, below is the reference:
46 | 
47 | ### Script Name
48 | `SCRIPT_NAME`
49 | 
50 | Displayed in the Help Message and Version Message.
51 | 
52 | ### Script Version
53 | `SCRIPT_VER`
54 | 
55 | Displayed in the Version Message.
56 | 
57 | ### Script Options
58 | `SCRIPT_OPTS`
59 | 
60 | This is where you will configure the script options/flags. This is provided by a compounded array `SCRIPT_OPTS`, where each array value contains the matching pattern and the variable name under which the provided value will be exported.
61 | 
62 | **Options Format:**
63 | 
64 | The `SCRIPT_OPTS` is an array who's values are as follows: `<regex>:<varname>`
65 | 
66 | The first part before the colon is a standard Regex to match against the given options, i.e. `(-d|--date)` will match either `-d` or `--date` — you can append as many patterns as you want using the OR operator `|` and all of the patterns will be matched and mapped to the `<varname>`.
67 | 
68 | The second part after the colon is the key used as the variable name. This name will be exported as `OPTS_<varname>`, i.e. `OPTS_DATE` in the case of a date option.
69 | 
70 | A complete example of this: `(-d|--date):DATE`
71 | 
72 | *Remember: Arrays in Bash are delimited with a space, i.e. `ARRAY=("foo" "bar" "baz")`*
73 | 
74 | **Important:** Options that are provided as `boolean` flag, i.e. no value is provided other than the flag itself, will be exported with the value of variable name. For example `OPTS_PUBLISH` will have the value `"OPTS_PUBLISH"`, this will let you know when you're provided `true` vs the `boolean` flag alone.
75 | 
76 | ### Script Catch All
77 | `SCRIPT_CATCHALL`
78 | 
79 | This will enable/disable the catch all method. Normally, you'd have to specify a script method, i.e. `script [options] operation [args]` but you may also want to skip the `operation` and simply execute `script [options] [args]` in which case you'd enable the Catch-All Option.
80 | 
81 | This will only accept `yes` or `no` for a value, otherwise, it defaults to disabling the Catch-All Method.
82 | 
83 | ## Script Autocompletion
84 | This script is equipped with an autocomplete helper method. Simply execute `<scriptname> generate-autocomplete` to generate an autocomplete script. This utilizes the `<scriptname> methods` method to get a dynamic list of all available methods/operations, this is done automatically and will update the list of methods as you add more method definitions.
85 | 
86 | ### Sourcing the Autocomplete Script
87 | For the autocomplete to function, you will need to source it into your bash session, best place to do this is in your `~/.profile` by simply including `source path/to/autocomplete/script` and restarting your bash session. You may also include it in `/etc/profile` to provide it to all users, although not recommended unless you know what you're doing.
88 | 
89 | *Notice: For autocompletion to operate properly, you MUST NOT start your method names with an underscore (`_`) as they're considered internal methods and will be omitted from method list.*
90 | 
91 | ## License and Disclaimer
92 | This software is provided as-is and no warranties or guaranties are provided by the author. Use at your own risk. Distributed under the GNU v3 Open Source License.
93 | 


--------------------------------------------------------------------------------
/template.sh:
--------------------------------------------------------------------------------
  1 | #!/bin/bash
  2 | #
  3 | # <ProvidedScriptName>
  4 | # Script Metadata & Description
  5 | #
  6 | # Options Format:
  7 | # The SCRIPT_OPTS is an array who's keys are as follows,
  8 | #   <regex>:<varname>
  9 | #
 10 | # The first part before the colon is a standard Regex to match against
 11 | # the given options, i.e. (-d|--date)
 12 | #
 13 | # The second part is the key used as the variable name. This name will be exported
 14 | # as OPTS_<varname>, i.e. OPTS_DATE
 15 | #
 16 | # A complete example of this: (-d|--date):DATE
 17 | #
 18 | # @author: Mad Robot
 19 | # @license: GNU v3
 20 | # @date: March 12, 2016
 21 | ##
 22 | SCRIPT_NAME="<ProvidedScriptName>"
 23 | SCRIPT_FILE="${0}"
 24 | SCRIPT_VER="<ProvidedScriptVersion>"
 25 | SCRIPT_OPTS=("")
 26 | SCRIPT_CATCHALL="<ProvidedCatchAll>"   # Must be either "yes" or "no", enables a '_catchall' method executed when no command given
 27 | 
 28 | # Print Usage for CLI
 29 | function _help () {
 30 |     echo -e "${SCRIPT_NAME}\n"
 31 |     echo -e "-v|--version  To display script's version"
 32 |     echo -e "-h|--help     To display script's help\n"
 33 |     echo -e "Available commands:\n"
 34 |     echo -e "methods       To display script's methods"
 35 |     _available-methods
 36 |     exit 0
 37 | }
 38 | 
 39 | # Print CLI Version
 40 | function _version () {
 41 |     echo -e "${SCRIPT_NAME}" 1>&2
 42 |     echo -en "Version " 1>&2
 43 |     echo -en "${SCRIPT_VER}"
 44 |     echo -e "" 1>&2
 45 |     exit 0
 46 | }
 47 | 
 48 | # List all the available public methods in this CLI
 49 | function _available-methods () {
 50 |     METHODS=$(declare -F | grep -Eoh '[^ ]*$' | grep -Eoh '^[^_]*' | sed '/^$/d')
 51 |     if [ -z "${METHODS}" ]; then
 52 |         echo -e "No methods found, this is script has a single entry point." 1>&2
 53 |     else
 54 |         echo -e "${METHODS}"
 55 |     fi
 56 |     exit 0
 57 | }
 58 | 
 59 | # Dispatches CLI Methods
 60 | function _handle () {
 61 |     METHOD=$(_available-methods 2>/dev/null | grep -Eoh "^${1}\$")
 62 |     if [ "x${METHOD}" != "x" ]; then ${METHOD} ${@:2}; exit 0
 63 |     else
 64 |         # Call a Catch-All method
 65 |         if [ "${SCRIPT_CATCHALL}" == "yes" ]; then _catchall ${@}; exit 0
 66 |         # Display usage options
 67 |         else echo -e "Method '${1}' is not found.\n"; _help; fi
 68 |     fi
 69 | }
 70 | 
 71 | # Generate Autocomplete Script
 72 | function _generate-autocomplete () {
 73 |     SCRIPT="$(printf "%s" ${SCRIPT_NAME} | sed -E 's/[ ]+/-/')"
 74 |     ACS="function __ac-${SCRIPT}-prompt() {"
 75 |     ACS+="local cur"
 76 |     ACS+="COMPREPLY=()"
 77 |     ACS+="cur=\${COMP_WORDS[COMP_CWORD]}"
 78 |     ACS+="if [ \${COMP_CWORD} -eq 1 ]; then"
 79 |     ACS+="    _script_commands=\$(${SCRIPT_FILE} methods)"
 80 |     ACS+="    COMPREPLY=( \$(compgen -W \"\${_script_commands}\" -- \${cur}) )"
 81 |     ACS+="fi; return 0"
 82 |     ACS+="}; complete -F __ac-${SCRIPT}-prompt ${SCRIPT_FILE}"
 83 |     printf "%s" "${ACS}"
 84 | }
 85 | 
 86 | 
 87 | #
 88 | # User Implementation Begins
 89 | #
 90 | # Catches all executions not performed by other matched methods
 91 | function _catchall () {
 92 |     exit 0
 93 | }
 94 | 
 95 | # ...
 96 | function some-method () {
 97 |     exit 0
 98 | }
 99 | 
100 | 
101 | #
102 | # User Implementation Ends
103 | # Do not modify the code below this point.
104 | #
105 | # Main Method Switcher
106 | # Parses provided Script Options/Flags. It ensures to parse
107 | # all the options before routing to a metched method.
108 | #
109 | # `<script> generate-autocomplete` is used to generate autocomplete script
110 | # `<script> methods` is used as a helper for autocompletion scripts
111 | ARGS=(); EXPORTS=(); while test $# -gt 0; do
112 |     OPT_MATCHED=0; case "${1}" in
113 |         -h|--help) OPT_MATCHED=$((OPT_MATCHED+1)); _help ;;
114 |         -v|--version) OPT_MATCHED=$((OPT_MATCHED+1)); _version ;;
115 |         methods) OPT_MATCHED=$((OPT_MATCHED+1)); _available-methods ;;
116 |         generate-autocomplete) _generate-autocomplete ;;
117 |         *) # Where the Magic Happens!
118 |         if [ ${#SCRIPT_OPTS[@]} -gt 0 ]; then for OPT in ${SCRIPT_OPTS[@]}; do SUBOPTS=("${1}"); LAST_SUBOPT="${1}"
119 |         if [[ "${1}" =~ ^-[^-]{2,} ]]; then SUBOPTS=$(printf "%s" "${1}"|sed 's/-//'|grep -o .); LAST_SUBOPT="-${1: -1}"; fi
120 |         for SUBOPT in ${SUBOPTS[@]}; do SUBOPT="$(printf "%s" ${SUBOPT} | sed -E 's/^([^-]+)/-\1/')"
121 |         OPT_MATCH=$(printf "%s" ${OPT} | grep -Eoh "^.*?:" | sed 's/://')
122 |         OPT_KEY=$(printf "%s" ${OPT} | grep -Eoh ":.*?$" | sed 's/://')
123 |         OPT_VARNAME="OPTS_${OPT_KEY}"
124 |         if [ -z "${OPT_VARNAME}" ]; then echo "Invalid Option Definition, missing VARNAME: ${OPT}" 1>&2; exit 1; fi
125 |         if [[ "${SUBOPT}" =~ ^${OPT_MATCH}$ ]]; then
126 |             OPT_VAL="${OPT_VARNAME}"; OPT_MATCHED=$((OPT_MATCHED+1))
127 |             if [[ "${SUBOPT}" =~ ^${LAST_SUBOPT}$ ]]; then
128 |             if [ -n "${2}" -a $# -ge 2 ] && [[ ! "${2}" =~ ^-+ ]]; then OPT_VAL="${2}"; shift; fi; fi
129 |             if [ -n "${!OPT_VARNAME}" ]; then OPT_VAL="${!OPT_VARNAME};${OPT_VAL}"; fi
130 |             declare "${OPT_VARNAME}=${OPT_VAL}"
131 |             EXPORTS+=("${OPT_VARNAME}")
132 |             if [[ "${SUBOPT}" =~ ^${LAST_SUBOPT}$ ]]; then shift; fi
133 |         fi; done; done; fi ;;
134 |     esac # Clean up unspecified flags and parse args
135 |     if [ ${OPT_MATCHED} -eq 0 ]; then if [[ ${1} =~ ^-+ ]]; then
136 |         if [ -n ${2} ] && [[ ! ${2} =~ ^-+ ]]; then shift; fi; shift
137 |     else ARGS+=("${1}"); shift; fi; fi
138 | done
139 | EXPORTS_UNIQ=$(echo "${EXPORTS[@]}" | tr ' ' '\n' | sort -u | tr '\n' ' ')
140 | for EXPORT in ${EXPORTS_UNIQ[@]}; do if [[ ${!EXPORT} == *";"* ]]; then
141 |     TMP_VAL=(); for VAL in $(echo ${!EXPORT} | tr ";" "\n"); do TMP_VAL+=("${VAL}"); done
142 |     eval ''${EXPORT}'=("'${TMP_VAL[@]}'")'
143 | fi; done; _handle ${ARGS[@]}; exit 0
144 | 


--------------------------------------------------------------------------------
/generate:
--------------------------------------------------------------------------------
  1 | #!/bin/bash
  2 | #
  3 | # Bash Template Script Generator
  4 | # Generates a Bash Script Template that handles Arguments and Flags Cleanly
  5 | #
  6 | # @author: Mad Robot
  7 | # @license: GNU v3
  8 | # @date: March 12, 2016
  9 | ##
 10 | SCRIPT_NAME="Bash Script Generator"
 11 | SCRIPT_FILE="${0}"
 12 | SCRIPT_VER="1.0.0"
 13 | SCRIPT_OPTS=("(-n|--name):NAME" "(-v|--version):VERSION" "(-c|--catch-all):CATCHALL")
 14 | SCRIPT_CATCHALL="yes"   # Must be either "yes" or "no", enables a '_catchall' method executed when no command given
 15 | 
 16 | # Print Usage for CLI
 17 | function _help () {
 18 |     echo -e "${SCRIPT_NAME}\n"
 19 |     echo -e "-v|--version  To display script's version"
 20 |     echo -e "-h|--help     To display script's help\n"
 21 |     echo -e "Available commands:\n"
 22 |     echo -e "methods       To display script's methods"
 23 |     _available-methods
 24 |     exit 0
 25 | }
 26 | 
 27 | # Print CLI Version
 28 | function _version () {
 29 |     echo -e "${SCRIPT_NAME}" 1>&2
 30 |     echo -en "Version " 1>&2
 31 |     echo -en "${SCRIPT_VER}"
 32 |     echo -e "" 1>&2
 33 |     exit 0
 34 | }
 35 | 
 36 | # List all the available public methods in this CLI
 37 | function _available-methods () {
 38 |     METHODS=$(declare -F | grep -Eoh '[^ ]*$' | grep -Eoh '^[^_]*' | sed '/^$/d')
 39 |     if [ -z "${METHODS}" ]; then
 40 |         echo -e "No methods found, this is script has a single entry point." 1>&2
 41 |     else
 42 |         echo -e "${METHODS}"
 43 |     fi
 44 |     exit 0
 45 | }
 46 | 
 47 | # Dispatches CLI Methods
 48 | function _handle () {
 49 |     METHOD=$(_available-methods 2>/dev/null | grep -Eoh "^${1}\$")
 50 |     if [ "x${METHOD}" != "x" ]; then ${METHOD} ${@:2}; exit 0
 51 |     else
 52 |         # Call a Catch-All method
 53 |         if [ "${SCRIPT_CATCHALL}" == "yes" ]; then _catchall ${@}; exit 0
 54 |         # Display usage options
 55 |         else echo -e "Method '${1}' is not found.\n"; _help; fi
 56 |     fi
 57 | }
 58 | 
 59 | # Generate Autocomplete Script
 60 | function _generate-autocomplete () {
 61 |     SCRIPT="$(printf "%s" ${SCRIPT_NAME} | sed -E 's/[ ]+/-/')"
 62 |     ACS="function __ac-${SCRIPT}-prompt() {"
 63 |     ACS+="local cur"
 64 |     ACS+="COMPREPLY=()"
 65 |     ACS+="cur=\${COMP_WORDS[COMP_CWORD]}"
 66 |     ACS+="if [ \${COMP_CWORD} -eq 1 ]; then"
 67 |     ACS+="    _script_commands=\$(${SCRIPT_FILE} methods)"
 68 |     ACS+="    COMPREPLY=( \$(compgen -W \"\${_script_commands}\" -- \${cur}) )"
 69 |     ACS+="fi; return 0"
 70 |     ACS+="}; complete -F __ac-${SCRIPT}-prompt ${SCRIPT_FILE}"
 71 |     printf "%s" "${ACS}"
 72 | }
 73 | 
 74 | 
 75 | #
 76 | # User Implementation Begins
 77 | #
 78 | # Catches all executions not performed by other matched methods
 79 | function _catchall () {
 80 |     # Fetch the Bash Script Template
 81 |     SCRIPT_TEMPLATE=$(curl -Ls http://bit.ly/bash-script-template)
 82 | 
 83 |     # Verify the Catch All option
 84 |     if [ "${OPTS_CATCHALL}" != "yes" -a "${OPTS_CATCHALL}" != "no" ]; then OPTS_CATCHALL="no"; fi
 85 | 
 86 |     # Replace tokens here to enable template customization
 87 |     SCRIPT_TEMPLATE=$(printf "%s" "${SCRIPT_TEMPLATE}" | sed 's/<ProvidedScriptName>/'"${OPTS_NAME:-ScriptName}"'/g')
 88 |     SCRIPT_TEMPLATE=$(printf "%s" "${SCRIPT_TEMPLATE}" | sed 's/<ProvidedScriptVersion>/'"${OPTS_VERSION:-1.0.0}"'/g')
 89 |     SCRIPT_TEMPLATE=$(printf "%s" "${SCRIPT_TEMPLATE}" | sed 's/<ProvidedCatchAll>/'"${OPTS_CATCHALL:-no}"'/g')
 90 | 
 91 |     # Output the Template
 92 |     printf "%s" "${SCRIPT_TEMPLATE}"
 93 |     exit 0
 94 | }
 95 | 
 96 | 
 97 | #
 98 | # User Implementation Ends
 99 | # Do not modify the code below this point.
100 | #
101 | # Main Method Switcher
102 | # Parses provided Script Options/Flags. It ensures to parse
103 | # all the options before routing to a metched method.
104 | #
105 | # `<script> generate-autocomplete` is used to generate autocomplete script
106 | # `<script> methods` is used as a helper for autocompletion scripts
107 | ARGS=(); EXPORTS=(); while test $# -gt 0; do
108 |     OPT_MATCHED=0; case "${1}" in
109 |         -h|--help) OPT_MATCHED=$((OPT_MATCHED+1)); _help ;;
110 |         -v|--version) OPT_MATCHED=$((OPT_MATCHED+1)); _version ;;
111 |         methods) OPT_MATCHED=$((OPT_MATCHED+1)); _available-methods ;;
112 |         generate-autocomplete) _generate-autocomplete ;;
113 |         *) # Where the Magic Happens!
114 |         if [ ${#SCRIPT_OPTS[@]} -gt 0 ]; then for OPT in ${SCRIPT_OPTS[@]}; do SUBOPTS=("${1}"); LAST_SUBOPT="${1}"
115 |         if [[ "${1}" =~ ^-[^-]{2,} ]]; then SUBOPTS=$(printf "%s" "${1}"|sed 's/-//'|grep -o .); LAST_SUBOPT="-${1: -1}"; fi
116 |         for SUBOPT in ${SUBOPTS[@]}; do SUBOPT="$(printf "%s" ${SUBOPT} | sed -E 's/^([^-]+)/-\1/')"
117 |         OPT_MATCH=$(printf "%s" ${OPT} | grep -Eoh "^.*?:" | sed 's/://')
118 |         OPT_KEY=$(printf "%s" ${OPT} | grep -Eoh ":.*?$" | sed 's/://')
119 |         OPT_VARNAME="OPTS_${OPT_KEY}"
120 |         if [ -z "${OPT_VARNAME}" ]; then echo "Invalid Option Definition, missing VARNAME: ${OPT}" 1>&2; exit 1; fi
121 |         if [[ "${SUBOPT}" =~ ^${OPT_MATCH}$ ]]; then
122 |             OPT_VAL="${OPT_VARNAME}"; OPT_MATCHED=$((OPT_MATCHED+1))
123 |             if [[ "${SUBOPT}" =~ ^${LAST_SUBOPT}$ ]]; then
124 |             if [ -n "${2}" -a $# -ge 2 ] && [[ ! "${2}" =~ ^-+ ]]; then OPT_VAL="${2}"; shift; fi; fi
125 |             if [ -n "${!OPT_VARNAME}" ]; then OPT_VAL="${!OPT_VARNAME};${OPT_VAL}"; fi
126 |             declare "${OPT_VARNAME}=${OPT_VAL}"
127 |             EXPORTS+=("${OPT_VARNAME}")
128 |             if [[ "${SUBOPT}" =~ ^${LAST_SUBOPT}$ ]]; then shift; fi
129 |         fi; done; done; fi ;;
130 |     esac # Clean up unspecified flags and parse args
131 |     if [ ${OPT_MATCHED} -eq 0 ]; then if [[ ${1} =~ ^-+ ]]; then
132 |         if [ -n ${2} ] && [[ ! ${2} =~ ^-+ ]]; then shift; fi; shift
133 |     else ARGS+=("${1}"); shift; fi; fi
134 | done
135 | EXPORTS_UNIQ=$(echo "${EXPORTS[@]}" | tr ' ' '\n' | sort -u | tr '\n' ' ')
136 | for EXPORT in ${EXPORTS_UNIQ[@]}; do if [[ ${!EXPORT} == *";"* ]]; then
137 |     TMP_VAL=(); for VAL in $(echo ${!EXPORT} | tr ";" "\n"); do TMP_VAL+=("${VAL}"); done
138 |     eval ''${EXPORT}'=("'${TMP_VAL[@]}'")'
139 | fi; done; _handle ${ARGS[@]}; exit 0
140 | 


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
  1 |                     GNU GENERAL PUBLIC LICENSE
  2 |                        Version 3, 29 June 2007
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127 | Major Component, or to implement a Standard Interface for which an
128 | implementation is available to the public in source code form.  A
129 | "Major Component", in this context, means a major essential component
130 | (kernel, window system, and so on) of the specific operating system
131 | (if any) on which the executable work runs, or a compiler used to
132 | produce the work, or an object code interpreter used to run it.
133 | 
134 |   The "Corresponding Source" for a work in object code form means all
135 | the source code needed to generate, install, and (for an executable
136 | work) run the object code and to modify the work, including scripts to
137 | control those activities.  However, it does not include the work's
138 | System Libraries, or general-purpose tools or generally available free
139 | programs which are used unmodified in performing those activities but
140 | which are not part of the work.  For example, Corresponding Source
141 | includes interface definition files associated with source files for
142 | the work, and the source code for shared libraries and dynamically
143 | linked subprograms that the work is specifically designed to require,
144 | such as by intimate data communication or control flow between those
145 | subprograms and other parts of the work.
146 | 
147 |   The Corresponding Source need not include anything that users
148 | can regenerate automatically from other parts of the Corresponding
149 | Source.
150 | 
151 |   The Corresponding Source for a work in source code form is that
152 | same work.
153 | 
154 |   2. Basic Permissions.
155 | 
156 |   All rights granted under this License are granted for the term of
157 | copyright on the Program, and are irrevocable provided the stated
158 | conditions are met.  This License explicitly affirms your unlimited
159 | permission to run the unmodified Program.  The output from running a
160 | covered work is covered by this License only if the output, given its
161 | content, constitutes a covered work.  This License acknowledges your
162 | rights of fair use or other equivalent, as provided by copyright law.
163 | 
164 |   You may make, run and propagate covered works that you do not
165 | convey, without conditions so long as your license otherwise remains
166 | in force.  You may convey covered works to others for the sole purpose
167 | of having them make modifications exclusively for you, or provide you
168 | with facilities for running those works, provided that you comply with
169 | the terms of this License in conveying all material for which you do
170 | not control copyright.  Those thus making or running the covered works
171 | for you must do so exclusively on your behalf, under your direction
172 | and control, on terms that prohibit them from making any copies of
173 | your copyrighted material outside their relationship with you.
174 | 
175 |   Conveying under any other circumstances is permitted solely under
176 | the conditions stated below.  Sublicensing is not allowed; section 10
177 | makes it unnecessary.
178 | 
179 |   3. Protecting Users' Legal Rights From Anti-Circumvention Law.
180 | 
181 |   No covered work shall be deemed part of an effective technological
182 | measure under any applicable law fulfilling obligations under article
183 | 11 of the WIPO copyright treaty adopted on 20 December 1996, or
184 | similar laws prohibiting or restricting circumvention of such
185 | measures.
186 | 
187 |   When you convey a covered work, you waive any legal power to forbid
188 | circumvention of technological measures to the extent such circumvention
189 | is effected by exercising rights under this License with respect to
190 | the covered work, and you disclaim any intention to limit operation or
191 | modification of the work as a means of enforcing, against the work's
192 | users, your or third parties' legal rights to forbid circumvention of
193 | technological measures.
194 | 
195 |   4. Conveying Verbatim Copies.
196 | 
197 |   You may convey verbatim copies of the Program's source code as you
198 | receive it, in any medium, provided that you conspicuously and
199 | appropriately publish on each copy an appropriate copyright notice;
200 | keep intact all notices stating that this License and any
201 | non-permissive terms added in accord with section 7 apply to the code;
202 | keep intact all notices of the absence of any warranty; and give all
203 | recipients a copy of this License along with the Program.
204 | 
205 |   You may charge any price or no price for each copy that you convey,
206 | and you may offer support or warranty protection for a fee.
207 | 
208 |   5. Conveying Modified Source Versions.
209 | 
210 |   You may convey a work based on the Program, or the modifications to
211 | produce it from the Program, in the form of source code under the
212 | terms of section 4, provided that you also meet all of these conditions:
213 | 
214 |     a) The work must carry prominent notices stating that you modified
215 |     it, and giving a relevant date.
216 | 
217 |     b) The work must carry prominent notices stating that it is
218 |     released under this License and any conditions added under section
219 |     7.  This requirement modifies the requirement in section 4 to
220 |     "keep intact all notices".
221 | 
222 |     c) You must license the entire work, as a whole, under this
223 |     License to anyone who comes into possession of a copy.  This
224 |     License will therefore apply, along with any applicable section 7
225 |     additional terms, to the whole of the work, and all its parts,
226 |     regardless of how they are packaged.  This License gives no
227 |     permission to license the work in any other way, but it does not
228 |     invalidate such permission if you have separately received it.
229 | 
230 |     d) If the work has interactive user interfaces, each must display
231 |     Appropriate Legal Notices; however, if the Program has interactive
232 |     interfaces that do not display Appropriate Legal Notices, your
233 |     work need not make them do so.
234 | 
235 |   A compilation of a covered work with other separate and independent
236 | works, which are not by their nature extensions of the covered work,
237 | and which are not combined with it such as to form a larger program,
238 | in or on a volume of a storage or distribution medium, is called an
239 | "aggregate" if the compilation and its resulting copyright are not
240 | used to limit the access or legal rights of the compilation's users
241 | beyond what the individual works permit.  Inclusion of a covered work
242 | in an aggregate does not cause this License to apply to the other
243 | parts of the aggregate.
244 | 
245 |   6. Conveying Non-Source Forms.
246 | 
247 |   You may convey a covered work in object code form under the terms
248 | of sections 4 and 5, provided that you also convey the
249 | machine-readable Corresponding Source under the terms of this License,
250 | in one of these ways:
251 | 
252 |     a) Convey the object code in, or embodied in, a physical product
253 |     (including a physical distribution medium), accompanied by the
254 |     Corresponding Source fixed on a durable physical medium
255 |     customarily used for software interchange.
256 | 
257 |     b) Convey the object code in, or embodied in, a physical product
258 |     (including a physical distribution medium), accompanied by a
259 |     written offer, valid for at least three years and valid for as
260 |     long as you offer spare parts or customer support for that product
261 |     model, to give anyone who possesses the object code either (1) a
262 |     copy of the Corresponding Source for all the software in the
263 |     product that is covered by this License, on a durable physical
264 |     medium customarily used for software interchange, for a price no
265 |     more than your reasonable cost of physically performing this
266 |     conveying of source, or (2) access to copy the
267 |     Corresponding Source from a network server at no charge.
268 | 
269 |     c) Convey individual copies of the object code with a copy of the
270 |     written offer to provide the Corresponding Source.  This
271 |     alternative is allowed only occasionally and noncommercially, and
272 |     only if you received the object code with such an offer, in accord
273 |     with subsection 6b.
274 | 
275 |     d) Convey the object code by offering access from a designated
276 |     place (gratis or for a charge), and offer equivalent access to the
277 |     Corresponding Source in the same way through the same place at no
278 |     further charge.  You need not require recipients to copy the
279 |     Corresponding Source along with the object code.  If the place to
280 |     copy the object code is a network server, the Corresponding Source
281 |     may be on a different server (operated by you or a third party)
282 |     that supports equivalent copying facilities, provided you maintain
283 |     clear directions next to the object code saying where to find the
284 |     Corresponding Source.  Regardless of what server hosts the
285 |     Corresponding Source, you remain obligated to ensure that it is
286 |     available for as long as needed to satisfy these requirements.
287 | 
288 |     e) Convey the object code using peer-to-peer transmission, provided
289 |     you inform other peers where the object code and Corresponding
290 |     Source of the work are being offered to the general public at no
291 |     charge under subsection 6d.
292 | 
293 |   A separable portion of the object code, whose source code is excluded
294 | from the Corresponding Source as a System Library, need not be
295 | included in conveying the object code work.
296 | 
297 |   A "User Product" is either (1) a "consumer product", which means any
298 | tangible personal property which is normally used for personal, family,
299 | or household purposes, or (2) anything designed or sold for incorporation
300 | into a dwelling.  In determining whether a product is a consumer product,
301 | doubtful cases shall be resolved in favor of coverage.  For a particular
302 | product received by a particular user, "normally used" refers to a
303 | typical or common use of that class of product, regardless of the status
304 | of the particular user or of the way in which the particular user
305 | actually uses, or expects or is expected to use, the product.  A product
306 | is a consumer product regardless of whether the product has substantial
307 | commercial, industrial or non-consumer uses, unless such uses represent
308 | the only significant mode of use of the product.
309 | 
310 |   "Installation Information" for a User Product means any methods,
311 | procedures, authorization keys, or other information required to install
312 | and execute modified versions of a covered work in that User Product from
313 | a modified version of its Corresponding Source.  The information must
314 | suffice to ensure that the continued functioning of the modified object
315 | code is in no case prevented or interfered with solely because
316 | modification has been made.
317 | 
318 |   If you convey an object code work under this section in, or with, or
319 | specifically for use in, a User Product, and the conveying occurs as
320 | part of a transaction in which the right of possession and use of the
321 | User Product is transferred to the recipient in perpetuity or for a
322 | fixed term (regardless of how the transaction is characterized), the
323 | Corresponding Source conveyed under this section must be accompanied
324 | by the Installation Information.  But this requirement does not apply
325 | if neither you nor any third party retains the ability to install
326 | modified object code on the User Product (for example, the work has
327 | been installed in ROM).
328 | 
329 |   The requirement to provide Installation Information does not include a
330 | requirement to continue to provide support service, warranty, or updates
331 | for a work that has been modified or installed by the recipient, or for
332 | the User Product in which it has been modified or installed.  Access to a
333 | network may be denied when the modification itself materially and
334 | adversely affects the operation of the network or violates the rules and
335 | protocols for communication across the network.
336 | 
337 |   Corresponding Source conveyed, and Installation Information provided,
338 | in accord with this section must be in a format that is publicly
339 | documented (and with an implementation available to the public in
340 | source code form), and must require no special password or key for
341 | unpacking, reading or copying.
342 | 
343 |   7. Additional Terms.
344 | 
345 |   "Additional permissions" are terms that supplement the terms of this
346 | License by making exceptions from one or more of its conditions.
347 | Additional permissions that are applicable to the entire Program shall
348 | be treated as though they were included in this License, to the extent
349 | that they are valid under applicable law.  If additional permissions
350 | apply only to part of the Program, that part may be used separately
351 | under those permissions, but the entire Program remains governed by
352 | this License without regard to the additional permissions.
353 | 
354 |   When you convey a copy of a covered work, you may at your option
355 | remove any additional permissions from that copy, or from any part of
356 | it.  (Additional permissions may be written to require their own
357 | removal in certain cases when you modify the work.)  You may place
358 | additional permissions on material, added by you to a covered work,
359 | for which you have or can give appropriate copyright permission.
360 | 
361 |   Notwithstanding any other provision of this License, for material you
362 | add to a covered work, you may (if authorized by the copyright holders of
363 | that material) supplement the terms of this License with terms:
364 | 
365 |     a) Disclaiming warranty or limiting liability differently from the
366 |     terms of sections 15 and 16 of this License; or
367 | 
368 |     b) Requiring preservation of specified reasonable legal notices or
369 |     author attributions in that material or in the Appropriate Legal
370 |     Notices displayed by works containing it; or
371 | 
372 |     c) Prohibiting misrepresentation of the origin of that material, or
373 |     requiring that modified versions of such material be marked in
374 |     reasonable ways as different from the original version; or
375 | 
376 |     d) Limiting the use for publicity purposes of names of licensors or
377 |     authors of the material; or
378 | 
379 |     e) Declining to grant rights under trademark law for use of some
380 |     trade names, trademarks, or service marks; or
381 | 
382 |     f) Requiring indemnification of licensors and authors of that
383 |     material by anyone who conveys the material (or modified versions of
384 |     it) with contractual assumptions of liability to the recipient, for
385 |     any liability that these contractual assumptions directly impose on
386 |     those licensors and authors.
387 | 
388 |   All other non-permissive additional terms are considered "further
389 | restrictions" within the meaning of section 10.  If the Program as you
390 | received it, or any part of it, contains a notice stating that it is
391 | governed by this License along with a term that is a further
392 | restriction, you may remove that term.  If a license document contains
393 | a further restriction but permits relicensing or conveying under this
394 | License, you may add to a covered work material governed by the terms
395 | of that license document, provided that the further restriction does
396 | not survive such relicensing or conveying.
397 | 
398 |   If you add terms to a covered work in accord with this section, you
399 | must place, in the relevant source files, a statement of the
400 | additional terms that apply to those files, or a notice indicating
401 | where to find the applicable terms.
402 | 
403 |   Additional terms, permissive or non-permissive, may be stated in the
404 | form of a separately written license, or stated as exceptions;
405 | the above requirements apply either way.
406 | 
407 |   8. Termination.
408 | 
409 |   You may not propagate or modify a covered work except as expressly
410 | provided under this License.  Any attempt otherwise to propagate or
411 | modify it is void, and will automatically terminate your rights under
412 | this License (including any patent licenses granted under the third
413 | paragraph of section 11).
414 | 
415 |   However, if you cease all violation of this License, then your
416 | license from a particular copyright holder is reinstated (a)
417 | provisionally, unless and until the copyright holder explicitly and
418 | finally terminates your license, and (b) permanently, if the copyright
419 | holder fails to notify you of the violation by some reasonable means
420 | prior to 60 days after the cessation.
421 | 
422 |   Moreover, your license from a particular copyright holder is
423 | reinstated permanently if the copyright holder notifies you of the
424 | violation by some reasonable means, this is the first time you have
425 | received notice of violation of this License (for any work) from that
426 | copyright holder, and you cure the violation prior to 30 days after
427 | your receipt of the notice.
428 | 
429 |   Termination of your rights under this section does not terminate the
430 | licenses of parties who have received copies or rights from you under
431 | this License.  If your rights have been terminated and not permanently
432 | reinstated, you do not qualify to receive new licenses for the same
433 | material under section 10.
434 | 
435 |   9. Acceptance Not Required for Having Copies.
436 | 
437 |   You are not required to accept this License in order to receive or
438 | run a copy of the Program.  Ancillary propagation of a covered work
439 | occurring solely as a consequence of using peer-to-peer transmission
440 | to receive a copy likewise does not require acceptance.  However,
441 | nothing other than this License grants you permission to propagate or
442 | modify any covered work.  These actions infringe copyright if you do
443 | not accept this License.  Therefore, by modifying or propagating a
444 | covered work, you indicate your acceptance of this License to do so.
445 | 
446 |   10. Automatic Licensing of Downstream Recipients.
447 | 
448 |   Each time you convey a covered work, the recipient automatically
449 | receives a license from the original licensors, to run, modify and
450 | propagate that work, subject to this License.  You are not responsible
451 | for enforcing compliance by third parties with this License.
452 | 
453 |   An "entity transaction" is a transaction transferring control of an
454 | organization, or substantially all assets of one, or subdividing an
455 | organization, or merging organizations.  If propagation of a covered
456 | work results from an entity transaction, each party to that
457 | transaction who receives a copy of the work also receives whatever
458 | licenses to the work the party's predecessor in interest had or could
459 | give under the previous paragraph, plus a right to possession of the
460 | Corresponding Source of the work from the predecessor in interest, if
461 | the predecessor has it or can get it with reasonable efforts.
462 | 
463 |   You may not impose any further restrictions on the exercise of the
464 | rights granted or affirmed under this License.  For example, you may
465 | not impose a license fee, royalty, or other charge for exercise of
466 | rights granted under this License, and you may not initiate litigation
467 | (including a cross-claim or counterclaim in a lawsuit) alleging that
468 | any patent claim is infringed by making, using, selling, offering for
469 | sale, or importing the Program or any portion of it.
470 | 
471 |   11. Patents.
472 | 
473 |   A "contributor" is a copyright holder who authorizes use under this
474 | License of the Program or a work on which the Program is based.  The
475 | work thus licensed is called the contributor's "contributor version".
476 | 
477 |   A contributor's "essential patent claims" are all patent claims
478 | owned or controlled by the contributor, whether already acquired or
479 | hereafter acquired, that would be infringed by some manner, permitted
480 | by this License, of making, using, or selling its contributor version,
481 | but do not include claims that would be infringed only as a
482 | consequence of further modification of the contributor version.  For
483 | purposes of this definition, "control" includes the right to grant
484 | patent sublicenses in a manner consistent with the requirements of
485 | this License.
486 | 
487 |   Each contributor grants you a non-exclusive, worldwide, royalty-free
488 | patent license under the contributor's essential patent claims, to
489 | make, use, sell, offer for sale, import and otherwise run, modify and
490 | propagate the contents of its contributor version.
491 | 
492 |   In the following three paragraphs, a "patent license" is any express
493 | agreement or commitment, however denominated, not to enforce a patent
494 | (such as an express permission to practice a patent or covenant not to
495 | sue for patent infringement).  To "grant" such a patent license to a
496 | party means to make such an agreement or commitment not to enforce a
497 | patent against the party.
498 | 
499 |   If you convey a covered work, knowingly relying on a patent license,
500 | and the Corresponding Source of the work is not available for anyone
501 | to copy, free of charge and under the terms of this License, through a
502 | publicly available network server or other readily accessible means,
503 | then you must either (1) cause the Corresponding Source to be so
504 | available, or (2) arrange to deprive yourself of the benefit of the
505 | patent license for this particular work, or (3) arrange, in a manner
506 | consistent with the requirements of this License, to extend the patent
507 | license to downstream recipients.  "Knowingly relying" means you have
508 | actual knowledge that, but for the patent license, your conveying the
509 | covered work in a country, or your recipient's use of the covered work
510 | in a country, would infringe one or more identifiable patents in that
511 | country that you have reason to believe are valid.
512 | 
513 |   If, pursuant to or in connection with a single transaction or
514 | arrangement, you convey, or propagate by procuring conveyance of, a
515 | covered work, and grant a patent license to some of the parties
516 | receiving the covered work authorizing them to use, propagate, modify
517 | or convey a specific copy of the covered work, then the patent license
518 | you grant is automatically extended to all recipients of the covered
519 | work and works based on it.
520 | 
521 |   A patent license is "discriminatory" if it does not include within
522 | the scope of its coverage, prohibits the exercise of, or is
523 | conditioned on the non-exercise of one or more of the rights that are
524 | specifically granted under this License.  You may not convey a covered
525 | work if you are a party to an arrangement with a third party that is
526 | in the business of distributing software, under which you make payment
527 | to the third party based on the extent of your activity of conveying
528 | the work, and under which the third party grants, to any of the
529 | parties who would receive the covered work from you, a discriminatory
530 | patent license (a) in connection with copies of the covered work
531 | conveyed by you (or copies made from those copies), or (b) primarily
532 | for and in connection with specific products or compilations that
533 | contain the covered work, unless you entered into that arrangement,
534 | or that patent license was granted, prior to 28 March 2007.
535 | 
536 |   Nothing in this License shall be construed as excluding or limiting
537 | any implied license or other defenses to infringement that may
538 | otherwise be available to you under applicable patent law.
539 | 
540 |   12. No Surrender of Others' Freedom.
541 | 
542 |   If conditions are imposed on you (whether by court order, agreement or
543 | otherwise) that contradict the conditions of this License, they do not
544 | excuse you from the conditions of this License.  If you cannot convey a
545 | covered work so as to satisfy simultaneously your obligations under this
546 | License and any other pertinent obligations, then as a consequence you may
547 | not convey it at all.  For example, if you agree to terms that obligate you
548 | to collect a royalty for further conveying from those to whom you convey
549 | the Program, the only way you could satisfy both those terms and this
550 | License would be to refrain entirely from conveying the Program.
551 | 
552 |   13. Use with the GNU Affero General Public License.
553 | 
554 |   Notwithstanding any other provision of this License, you have
555 | permission to link or combine any covered work with a work licensed
556 | under version 3 of the GNU Affero General Public License into a single
557 | combined work, and to convey the resulting work.  The terms of this
558 | License will continue to apply to the part which is the covered work,
559 | but the special requirements of the GNU Affero General Public License,
560 | section 13, concerning interaction through a network will apply to the
561 | combination as such.
562 | 
563 |   14. Revised Versions of this License.
564 | 
565 |   The Free Software Foundation may publish revised and/or new versions of
566 | the GNU General Public License from time to time.  Such new versions will
567 | be similar in spirit to the present version, but may differ in detail to
568 | address new problems or concerns.
569 | 
570 |   Each version is given a distinguishing version number.  If the
571 | Program specifies that a certain numbered version of the GNU General
572 | Public License "or any later version" applies to it, you have the
573 | option of following the terms and conditions either of that numbered
574 | version or of any later version published by the Free Software
575 | Foundation.  If the Program does not specify a version number of the
576 | GNU General Public License, you may choose any version ever published
577 | by the Free Software Foundation.
578 | 
579 |   If the Program specifies that a proxy can decide which future
580 | versions of the GNU General Public License can be used, that proxy's
581 | public statement of acceptance of a version permanently authorizes you
582 | to choose that version for the Program.
583 | 
584 |   Later license versions may give you additional or different
585 | permissions.  However, no additional obligations are imposed on any
586 | author or copyright holder as a result of your choosing to follow a
587 | later version.
588 | 
589 |   15. Disclaimer of Warranty.
590 | 
591 |   THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
592 | APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
596 | PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
597 | IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
599 | 
600 |   16. Limitation of Liability.
601 | 
602 |   IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
610 | SUCH DAMAGES.
611 | 
612 |   17. Interpretation of Sections 15 and 16.
613 | 
614 |   If the disclaimer of warranty and limitation of liability provided
615 | above cannot be given local legal effect according to their terms,
616 | reviewing courts shall apply local law that most closely approximates
617 | an absolute waiver of all civil liability in connection with the
618 | Program, unless a warranty or assumption of liability accompanies a
619 | copy of the Program in return for a fee.
620 | 
621 |                      END OF TERMS AND CONDITIONS
622 | 
623 |             How to Apply These Terms to Your New Programs
624 | 
625 |   If you develop a new program, and you want it to be of the greatest
626 | possible use to the public, the best way to achieve this is to make it
627 | free software which everyone can redistribute and change under these terms.
628 | 
629 |   To do so, attach the following notices to the program.  It is safest
630 | to attach them to the start of each source file to most effectively
631 | state the exclusion of warranty; and each file should have at least
632 | the "copyright" line and a pointer to where the full notice is found.
633 | 
634 |     {one line to give the program's name and a brief idea of what it does.}
635 |     Copyright (C) {year}  {name of author}
636 | 
637 |     This program is free software: you can redistribute it and/or modify
638 |     it under the terms of the GNU General Public License as published by
639 |     the Free Software Foundation, either version 3 of the License, or
640 |     (at your option) any later version.
641 | 
642 |     This program is distributed in the hope that it will be useful,
643 |     but WITHOUT ANY WARRANTY; without even the implied warranty of
644 |     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
645 |     GNU General Public License for more details.
646 | 
647 |     You should have received a copy of the GNU General Public License
648 |     along with this program.  If not, see <http://www.gnu.org/licenses/>.
649 | 
650 | Also add information on how to contact you by electronic and paper mail.
651 | 
652 |   If the program does terminal interaction, make it output a short
653 | notice like this when it starts in an interactive mode:
654 | 
655 |     {project}  Copyright (C) {year}  {fullname}
656 |     This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
657 |     This is free software, and you are welcome to redistribute it
658 |     under certain conditions; type `show c' for details.
659 | 
660 | The hypothetical commands `show w' and `show c' should show the appropriate
661 | parts of the General Public License.  Of course, your program's commands
662 | might be different; for a GUI interface, you would use an "about box".
663 | 
664 |   You should also get your employer (if you work as a programmer) or school,
665 | if any, to sign a "copyright disclaimer" for the program, if necessary.
666 | For more information on this, and how to apply and follow the GNU GPL, see
667 | <http://www.gnu.org/licenses/>.
668 | 
669 |   The GNU General Public License does not permit incorporating your program
670 | into proprietary programs.  If your program is a subroutine library, you
671 | may consider it more useful to permit linking proprietary applications with
672 | the library.  If this is what you want to do, use the GNU Lesser General
673 | Public License instead of this License.  But first, please read
674 | <http://www.gnu.org/philosophy/why-not-lgpl.html>.
675 | 


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