├── tests ├── travis_inventory ├── ansible.cfg ├── vagrant_inventory ├── travis.yml ├── vagrant.yml └── Vagrantfile ├── ansible.cfg ├── .gitignore ├── local.yml ├── tasks ├── main.yml ├── tarsnapper.yml └── tarsnap.yml ├── files ├── etc_logrotate_tarsnap ├── tarsnapper.default.conf └── tarsnap.sh ├── defaults └── main.yml ├── meta └── main.yml ├── .travis.yml ├── personal ├── tarsnapper.conf └── defaults.yml ├── templates └── tarsnaprc.j2 ├── README.md └── COPYING /tests/travis_inventory: -------------------------------------------------------------------------------- 1 | localhost 2 | -------------------------------------------------------------------------------- /ansible.cfg: -------------------------------------------------------------------------------- 1 | [defaults] 2 | roles_path = ../ 3 | -------------------------------------------------------------------------------- /tests/ansible.cfg: -------------------------------------------------------------------------------- 1 | [defaults] 2 | roles_path = ../../ 3 | -------------------------------------------------------------------------------- /tests/vagrant_inventory: -------------------------------------------------------------------------------- 1 | .vagrant/provisioners/ansible/inventory/vagrant_ansible_inventory -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Created by http://www.gitignore.io 2 | 3 | ### Vagrant ### 4 | .vagrant/ 5 | 6 | -------------------------------------------------------------------------------- /tests/travis.yml: -------------------------------------------------------------------------------- 1 | - hosts: localhost 2 | connection: local 3 | sudo: yes 4 | roles: 5 | - ansible-tarsnap 6 | -------------------------------------------------------------------------------- /local.yml: -------------------------------------------------------------------------------- 1 | - hosts: localhost 2 | connection: local 3 | sudo: yes 4 | vars_files: 5 | - personal/defaults.yml 6 | roles: 7 | - ansible-tarsnap 8 | -------------------------------------------------------------------------------- /tasks/main.yml: -------------------------------------------------------------------------------- 1 | - include: tarsnap.yml tags=tarsnap 2 | - include: tarsnapper.yml 3 | tags: 4 | - tarsnap 5 | when: "{{ tarsnap_tarsnapper_conf != None}}" 6 | -------------------------------------------------------------------------------- /files/etc_logrotate_tarsnap: -------------------------------------------------------------------------------- 1 | /var/log/tarsnap.log { 2 | monthly 3 | missingok 4 | rotate 12 5 | compress 6 | notifempty 7 | create 0644 root root 8 | } 9 | -------------------------------------------------------------------------------- /tests/vagrant.yml: -------------------------------------------------------------------------------- 1 | - hosts: all 2 | sudo: yes 3 | pre_tasks: 4 | - name: Update apt cache 5 | apt: update_cache=yes 6 | - name: Upgrade all safe packages 7 | apt: upgrade=safe 8 | roles: 9 | - ansible-tarsnap 10 | -------------------------------------------------------------------------------- /defaults/main.yml: -------------------------------------------------------------------------------- 1 | tarsnap_version: 1.0.35 2 | tarsnap_keyfile: "/root/tarsnap.key" 3 | tarsnap_cache: "/usr/local/tarsnap-cache" 4 | tarsnap_cron_minute: "0" 5 | tarsnap_cron_hour: "3" 6 | tarsnap_cron_day: "*" 7 | tarsnap_cron_month: "*" 8 | tarsnap_tarsnapper_conf: "tarsnapper.default.conf" 9 | #tarsnap_global_exclusions: 10 | # - "*.deb" 11 | -------------------------------------------------------------------------------- /meta/main.yml: -------------------------------------------------------------------------------- 1 | --- 2 | dependencies: [] 3 | 4 | galaxy_info: 5 | author: pmbauer 6 | description: role for operating tarsnap backups 7 | company: "N/A" 8 | license: "GPL v3" 9 | min_ansible_version: 1.7 10 | platforms: 11 | - name: Debian 12 | versions: 13 | - wheezy 14 | - name: Ubuntu 15 | versions: 16 | - precise 17 | - trusty 18 | categories: 19 | - cloud 20 | - system 21 | -------------------------------------------------------------------------------- /tests/Vagrantfile: -------------------------------------------------------------------------------- 1 | # -*- mode: ruby -*- 2 | # vi: set ft=ruby : 3 | 4 | VAGRANTFILE_API_VERSION = "2" 5 | 6 | Vagrant.configure(VAGRANTFILE_API_VERSION) do |config| 7 | config.vm.box = "box-cutter/debian76" 8 | config.vm.hostname = "tarsnaptest.local" 9 | config.vm.network "private_network", ip: "172.16.100.3" 10 | 11 | config.vm.provider :virtualbox do |vb, override| 12 | vb.memory = 512 13 | vb.customize ["modifyvm", :id, "--natdnshostresolver1", "on"] 14 | end 15 | 16 | config.vm.provision :ansible do |ansible| 17 | ansible.playbook = "vagrant.yml" 18 | ansible.host_key_checking = false 19 | ansible.extra_vars = { ansible_ssh_user: "vagrant", testing: true } 20 | end 21 | end 22 | -------------------------------------------------------------------------------- /.travis.yml: -------------------------------------------------------------------------------- 1 | --- 2 | language: python 3 | python: "2.7" 4 | 5 | before_install: 6 | # Make sure everything's up to date. 7 | - sudo apt-get update -qq 8 | 9 | install: 10 | # Install Ansible. 11 | - pip install ansible 12 | 13 | script: 14 | # synax check run 15 | - "ansible-playbook -i tests/travis_inventory tests/travis.yml --syntax-check" 16 | 17 | # role executes first time without error 18 | - "ansible-playbook -vvvv -i tests/travis_inventory tests/travis.yml" 19 | 20 | # role idempotence 21 | - > 22 | ansible-playbook -i tests/travis_inventory tests/travis.yml 23 | | grep -q 'changed=0.*failed=0' 24 | && (echo 'Idempotence test: pass' && exit 0) 25 | || (echo 'Idempotence test: fail' && exit 1) 26 | -------------------------------------------------------------------------------- /files/tarsnapper.default.conf: -------------------------------------------------------------------------------- 1 | # -*- mode: yaml -*- 2 | # vi: set ft=yaml : 3 | 4 | # Global values, valid for all jobs unless overridden 5 | deltas: 1d 7d 30d 6 | target: $name-$date 7 | 8 | jobs: 9 | home: 10 | sources: 11 | - "/home" 12 | # images: 13 | # source: /var/lib/mysql 14 | # exclude: /var/lib/mysql/temp 15 | # exec_before: service stop mysql 16 | # exec_after: service start mysql 17 | # # Aliases can be used when renaming a job to match old archives. 18 | # alias: img 19 | 20 | # some-other-job: 21 | # sources: 22 | # - /var/dir/1 23 | # - /etc/google 24 | # excludes: 25 | # - /etc/google/cache 26 | # target: /custom-target-$date.zip 27 | # deltas: 1h 6h 1d 7d 24d 180d 28 | -------------------------------------------------------------------------------- /personal/tarsnapper.conf: -------------------------------------------------------------------------------- 1 | # -*- mode: yaml -*- 2 | # vi: set ft=yaml : 3 | 4 | # Global values, valid for all jobs unless overridden: 5 | deltas: 1d 7d 30d 6 | target: $name-$date 7 | 8 | jobs: 9 | # docs: 10 | # sources: 11 | # - "/home/pbauer/AeroFS/Documents" 12 | 13 | projects: 14 | sources: 15 | # - "/home/pbauer/AeroFS/prj" 16 | - "/home/pbauer/prjl" 17 | excludes: 18 | - "/home/pbauer/prjl/dotfiles/.config/google-*" 19 | - "/home/pbauer/prjl/dotfiles/.config/VirtualBox" 20 | - "/home/pbauer/prjl/dotfiles/.config/libreoffice" 21 | - "*.class" 22 | - "*.jar" 23 | - "*.war" 24 | - "*/nimcache/*" 25 | 26 | home: 27 | sources: 28 | - "/home" 29 | excludes: 30 | - "/home/*/AeroFS" 31 | - "/home/*/Dropbox" 32 | - "/home/*/prjl" 33 | etc: 34 | sources: 35 | - "/etc" 36 | - "/usr/local/etc" 37 | -------------------------------------------------------------------------------- /tasks/tarsnapper.yml: -------------------------------------------------------------------------------- 1 | - name: Install tarsnapper wrapper 2 | easy_install: name=tarsnapper 3 | 4 | - name: Install tarsnapper configuration file 5 | copy: src={{ tarsnap_tarsnapper_conf }} dest=/root/tarsnapper.conf mode=644 6 | 7 | - name: Install Tarsnap configuration file 8 | template: src=tarsnaprc.j2 dest=/root/.tarsnaprc mode=644 9 | 10 | - name: Install tarsnapper backup script 11 | copy: src=tarsnap.sh dest=/root/tarsnap.sh mode=755 12 | 13 | - name: Configure tarsnap logrotate 14 | copy: src=etc_logrotate_tarsnap dest=/etc/logrotate.d/tarsnap owner=root group=root mode=0644 15 | 16 | - name: Install nightly Tarsnap-generations cronjob 17 | cron: 18 | args: 19 | name: "Tarsnap backup" 20 | job: "/root/tarsnap.sh > /dev/null" 21 | minute: "{{ tarsnap_cron_minute }}" 22 | hour: "{{ tarsnap_cron_hour }}" 23 | day: "{{ tarsnap_cron_day }}" 24 | month: "{{ tarsnap_cron_month }}" 25 | -------------------------------------------------------------------------------- /personal/defaults.yml: -------------------------------------------------------------------------------- 1 | tarsnap_tarsnapper_conf: "personal/tarsnapper.conf" 2 | tarsnap_global_exclusions: 3 | - "*.core" 4 | - "*.deb" 5 | - "*.rpm" 6 | - "*.sav" 7 | - "*.vmdk" 8 | - "*.vdi" 9 | - "*.qcow2" 10 | - "*/tmp/*" 11 | - "/home/*/.adobe" 12 | - "/home/*/.aerofs*" 13 | - "/home/*/.boot" 14 | - "/home/*/.cache" 15 | - "/home/*/.docker*" 16 | - "/home/*/.dropbox*" 17 | - "/home/*/.gstreamer-*" 18 | - "/home/*/.gvm" 19 | - "/home/*/.gvfs" 20 | - "/home/*/.local/share/icons" 21 | - "/home/*/.local/share/Trash" 22 | - "/home/*/.local/share/zeitgeist" 23 | - "/home/*/.local/share/Zeal/Zeal/docsets" 24 | - "/home/*/.m2" 25 | - "/home/*/.macromedia" 26 | - "/home/*/.mix" 27 | - "/home/*/.nimble" 28 | - "/home/*/.npm" 29 | - "/home/*/.opam" 30 | - "/home/*/.slime" 31 | - "/home/*/.thunderbird" 32 | - "/home/*/.vagrant.d" 33 | - "/home/*/.voom-repos" 34 | - "/home/*/usr" 35 | - "/home/*/vmware" 36 | - "/home/*/Downloads" 37 | - "/home/*/VirtualBox*" 38 | -------------------------------------------------------------------------------- /files/tarsnap.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | # ############################################################################### 4 | # CONFIGURATION 5 | # ############################################################################### 6 | CONF=/root/tarsnapper.conf 7 | 8 | # ############################################################################### 9 | # FUNCTIONS 10 | # ############################################################################### 11 | function log { 12 | echo `date +%F\ %T`: "$@" 13 | } 14 | 15 | function failed { 16 | log "backup generation FAILED: Line: $1, Code: $2" 17 | exit $2 18 | } 19 | 20 | # ############################################################################### 21 | # ENVIRONMENT 22 | # ############################################################################### 23 | PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin 24 | 25 | trap 'failed ${LINENO} ${$?}' ERR 26 | 27 | exec > >(tee -a /var/log/tarsnap.log) 28 | exec 2>&1 29 | 30 | # ############################################################################### 31 | # MAIN 32 | # ############################################################################### 33 | log "backup generation START" 34 | tarsnapper -c $CONF make 35 | log "backup generation DONE" 36 | -------------------------------------------------------------------------------- /templates/tarsnaprc.j2: -------------------------------------------------------------------------------- 1 | ### Recommended options 2 | humanize-numbers 3 | 4 | # Tarsnap cache directory 5 | cachedir {{ tarsnap_cache }} 6 | 7 | # Tarsnap key file 8 | keyfile {{ tarsnap_keyfile }} 9 | 10 | # Don't archive files which have the nodump flag set 11 | nodump 12 | 13 | # Print statistics when creating or deleting archives 14 | print-stats 15 | 16 | # Create a checkpoint once per GB of uploaded data. 17 | checkpoint-bytes 1G 18 | 19 | ### Other options, not applicable to most systems 20 | 21 | # Aggressive network behaviour: Use multiple TCP connections when 22 | # writing archives. Use of this option is recommended only in 23 | # cases where TCP congestion control is known to be the limiting 24 | # factor in upload performance. 25 | #aggressive-networking 26 | 27 | # Exclude files and directories matching specified patterns 28 | exclude {{ tarsnap_cache }} 29 | {{ "exclude " + "\nexclude ".join(tarsnap_global_exclusions) if tarsnap_global_exclusions is defined else ""}} 30 | 31 | # Include only files and directories matching specified patterns 32 | #include 33 | 34 | # Attempt to reduce tarsnap memory consumption. This option 35 | # will slow down the process of creating archives, but may help 36 | # on systems where the average size of files being backed up is 37 | # less than 1 MB. 38 | #lowmem 39 | 40 | # Try even harder to reduce tarsnap memory consumption. This can 41 | # significantly slow down tarsnap, but reduces its memory usage 42 | # by an additional factor of 2 beyond what the lowmem option does. 43 | #verylowmem 44 | 45 | # Snapshot time. Use this option if you are backing up files 46 | # from a filesystem snapshot rather than from a "live" filesystem. 47 | #snaptime 48 | -------------------------------------------------------------------------------- /tasks/tarsnap.yml: -------------------------------------------------------------------------------- 1 | # Parts of this file are based on: 2 | # url: https://github.com/al3x/sovereign/blob/a48a9941009cc1f18450d01cc7cf4f067ece3fae/roles/tarsnap/tasks/tarsnap.yml 3 | # contributors: al3x jplock lvillani lukecyca jsravn bcachet alexdunae pdebruic 4 | # The sovereign project source and this derivative work are licensed under the GNU General Public License v3. 5 | 6 | - name: Install dependencies for Tarsnap 7 | apt: pkg={{ item }} state=installed 8 | with_items: 9 | - e2fslibs-dev 10 | - libssl-dev 11 | - zlib1g-dev 12 | - build-essential 13 | - python-setuptools 14 | 15 | - name: Check if tarsnap {{ tarsnap_version }} is installed 16 | shell: tarsnap --version | grep {{ tarsnap_version }} --color=never 17 | register: tarsnap_installed 18 | changed_when: "tarsnap_installed.stderr != ''" 19 | ignore_errors: yes 20 | 21 | - name: Download the current tarsnap code signing key 22 | when: tarsnap_installed|failed 23 | get_url: 24 | url=https://www.tarsnap.com/tarsnap-signing-key.asc 25 | dest=/root/tarsnap-signing-key.asc 26 | 27 | - name: Add the tarsnap code signing key to your list of keys 28 | when: tarsnap_installed|failed 29 | command: 30 | gpg --import tarsnap-signing-key.asc 31 | chdir=/root/ 32 | 33 | - name: Download tarsnap SHA file 34 | when: tarsnap_installed|failed 35 | get_url: 36 | url="https://www.tarsnap.com/download/tarsnap-sigs-{{ tarsnap_version }}.asc" 37 | dest="/root/tarsnap-sigs-{{ tarsnap_version }}.asc" 38 | 39 | - name: get the SHA256sum for this tarsnap release 40 | when: tarsnap_installed|failed 41 | shell: > 42 | gpgResult=`gpg --decrypt tarsnap-sigs-{{ tarsnap_version }}.asc 2>/dev/null`; 43 | echo ${gpgResult#*=}; 44 | args: 45 | executable: /bin/bash 46 | chdir: /root 47 | register: tarsnap_sha 48 | 49 | - name: Download Tarsnap source 50 | when: tarsnap_installed|failed 51 | get_url: 52 | url="https://www.tarsnap.com/download/tarsnap-autoconf-{{ tarsnap_version }}.tgz" 53 | dest="/root/tarsnap-autoconf-{{ tarsnap_version }}.tgz" 54 | sha256sum={{ tarsnap_sha.stdout_lines[0] }} 55 | 56 | - name: Decompress Tarsnap source 57 | when: tarsnap_installed|failed 58 | command: tar xzf /root/tarsnap-autoconf-{{ tarsnap_version }}.tgz chdir=/root creates=/root/tarsnap-autoconf-{{ tarsnap_version }}/COPYING 59 | 60 | - name: Configure Tarsnap for local build 61 | when: tarsnap_installed|failed 62 | command: ./configure chdir=/root/tarsnap-autoconf-{{ tarsnap_version }} creates=/root/tarsnap-autoconf-{{ tarsnap_version }}/Makefile 63 | 64 | - name: Build and install Tarsnap 65 | when: tarsnap_installed|failed 66 | command: make all install clean chdir=/root/tarsnap-autoconf-{{ tarsnap_version }} creates=/usr/local/bin/tarsnap 67 | 68 | - name: Create Tarsnap cache directory 69 | file: state=directory path={{ tarsnap_cache }} 70 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | [![Build Status](https://travis-ci.org/pmbauer/ansible-tarsnap.svg?branch=master)](https://travis-ci.org/pmbauer/ansible-tarsnap) 2 | 3 | # ansible-tarsnap 4 | 5 | Is ... 6 | 7 | - An ansible role for operating tarsnap backups 8 | - An [ansible-pull] compatible playbook for standalone installations. 9 | 10 | The role downloads sources for, verifies the gpg-encrypted sha signature, compiles, and installs [Tarsnap]. 11 | **Batteries included**: [tarsnapper], cron job, shell wrapper, and [logrotate] policy. 12 | 13 | ## version 14 | 15 | 1.0 16 | 17 | ## requirements 18 | - [Tarsnap] account 19 | - [Tarsnap] machine key file 20 | - instructions to generate one are in the [standalone](#standalone) section 21 | - **important** this role assumes you are responsible for copying this key to `tarsnap_keyfile`. See [role variables](#role variables) 22 | 23 | ## role variables 24 | 25 | Available variables are listed below, along with default values (see `defaults/main.yml`): 26 | 27 | tarsnap_version: 1.0.35 28 | tarsnap_keyfile: "/root/tarsnap.key" 29 | tarsnap_cache: "/usr/local/tarsnap-cache" 30 | 31 | The role-installed `.tarsnaprc` file will automatically exclude the `tarsnap_cache` folder and reference the `tarsnap_keyfile` for backups. Your play or an out-of-band process is responsible for creating the keyfile and placing it at this location. See the [standalone](#standalone) section. 32 | 33 | tarsnap_cron_minute: "0" 34 | tarsnap_cron_hour: "3" 35 | tarsnap_cron_day: "*" 36 | tarsnap_cron_month: "*" 37 | 38 | Controls the period at which the backup job wrapper `/root/tarsnap.sh` is executed. 39 | The period should be at least as frequent as the smallest generation defined by your `tarsnapper.conf` deltas (e.g. if your smallest delta is 1h, you should set all these vars to `*` except for `tarsnap_cron_minute`). 40 | These variable map to parameters in the [ansible cron module]. 41 | 42 | tarsnap_tarsnapper_conf: "tarsnapper.default.conf" 43 | 44 | [tarsnapper] configuration. A default and example are provided ([tarsnapper.default.conf]) but you should over-ride this. 45 | 46 | tarsnap_global_exclusions: # not defined by default 47 | 48 | List of string glob patterns that will be added to the `.tarsnaprc` file. For an example list, see `personal/defaults.yml` 49 | 50 | ## standalone 51 | 52 | The `local.yml` play uses the role to install a local backup policy, either via manual execution or [ansible-pull]. 53 | 54 | You should fork this repo before executing locally since the exclusion patterns and `tarsnapper.conf` as defined in the `personal` directory need to be customized. 55 | 56 | ```bash 57 | # installs role locally, using the exclusion patterns and tarsnapper.conf 58 | # defined in the "personal" directory 59 | ansible-playbook -i /dev/null local.yml 60 | 61 | # Now that tarsnap is installed, generate a tarsnap machine key. 62 | # This will prompt for your tarsnap.com account password 63 | sudo tarsnap-keygen --keyfile /root/tarsnap.key --user me@example.com --machine `hostname` 64 | 65 | # alternatively, copy your pre-registered machine key to the location defined in the tarsnap_keyfile var 66 | ``` 67 | 68 | ## license 69 | Source Copyright © 2014 Paul Bauer. Distributed under the GNU General Public License v3, the same as Ansible uses. See the file COPYING. 70 | 71 | [Ansible]:http://www.ansible.com/home 72 | [ansible-pull]:http://linux.die.net/man/1/ansible-pull 73 | [ansible cron module]:http://docs.ansible.com/cron_module.html 74 | [logrotate]:http://linuxcommand.org/man_pages/logrotate8.html 75 | [Tarsnap]:https://www.tarsnap.com/ 76 | [sovereign]:https://github.com/al3x/sovereign 77 | [tarsnapper]:https://github.com/miracle2k/tarsnapper 78 | [tarsnapper.default.conf]:https://github.com/pmbauer/ansible-tarsnap/tree/master/files/tarsnapper.default.conf 79 | -------------------------------------------------------------------------------- /COPYING: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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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. 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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 . 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 | . 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 | . 675 | --------------------------------------------------------------------------------