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Patch should be in ansible.posix (#6)
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John R Barker
GitHub
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1 changed files with 0 additions and 214 deletions
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#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# Copyright: (c) 2012, Luis Alberto Perez Lazaro <luisperlazaro@gmail.com>
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# Copyright: (c) 2015, Jakub Jirutka <jakub@jirutka.cz>
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# Copyright: (c) 2017, Ansible Project
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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from __future__ import absolute_import, division, print_function
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__metaclass__ = type
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ANSIBLE_METADATA = {'metadata_version': '1.1',
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'status': ['stableinterface'],
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'supported_by': 'community'}
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DOCUMENTATION = r'''
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---
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module: patch
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author:
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- Jakub Jirutka (@jirutka)
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- Luis Alberto Perez Lazaro (@luisperlaz)
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description:
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- Apply patch files using the GNU patch tool.
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short_description: Apply patch files using the GNU patch tool
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options:
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basedir:
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description:
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- Path of a base directory in which the patch file will be applied.
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- May be omitted when C(dest) option is specified, otherwise required.
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type: path
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dest:
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description:
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- Path of the file on the remote machine to be patched.
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- The names of the files to be patched are usually taken from the patch
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file, but if there's just one file to be patched it can specified with
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this option.
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type: path
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aliases: [ originalfile ]
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src:
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description:
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- Path of the patch file as accepted by the GNU patch tool. If
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C(remote_src) is 'no', the patch source file is looked up from the
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module's I(files) directory.
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type: path
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required: true
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aliases: [ patchfile ]
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state:
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description:
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- Whether the patch should be applied or reverted.
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type: str
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choices: [ absent, present ]
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default: present
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remote_src:
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description:
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- If C(no), it will search for src at originating/master machine, if C(yes) it will
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go to the remote/target machine for the C(src).
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type: bool
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default: no
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strip:
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description:
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- Number that indicates the smallest prefix containing leading slashes
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that will be stripped from each file name found in the patch file.
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- For more information see the strip parameter of the GNU patch tool.
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type: int
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default: 0
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backup:
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description:
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- Passes C(--backup --version-control=numbered) to patch, producing numbered backup copies.
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type: bool
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default: no
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binary:
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description:
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- Setting to C(yes) will disable patch's heuristic for transforming CRLF
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line endings into LF.
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- Line endings of src and dest must match.
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- If set to C(no), C(patch) will replace CRLF in C(src) files on POSIX.
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type: bool
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default: no
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notes:
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- This module requires GNU I(patch) utility to be installed on the remote host.
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'''
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EXAMPLES = r'''
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- name: Apply patch to one file
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patch:
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src: /tmp/index.html.patch
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dest: /var/www/index.html
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- name: Apply patch to multiple files under basedir
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patch:
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src: /tmp/customize.patch
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basedir: /var/www
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strip: 1
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- name: Revert patch to one file
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patch:
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src: /tmp/index.html.patch
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dest: /var/www/index.html
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state: absent
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'''
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import os
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import platform
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from traceback import format_exc
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from ansible.module_utils.basic import AnsibleModule
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from ansible.module_utils._text import to_native
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class PatchError(Exception):
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pass
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def add_dry_run_option(opts):
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# Older versions of FreeBSD, OpenBSD and NetBSD support the --check option only.
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if platform.system().lower() in ['openbsd', 'netbsd', 'freebsd']:
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opts.append('--check')
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else:
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opts.append('--dry-run')
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def is_already_applied(patch_func, patch_file, basedir, dest_file=None, binary=False, strip=0, state='present'):
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opts = ['--quiet', '--forward',
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"--strip=%s" % strip, "--directory='%s'" % basedir,
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"--input='%s'" % patch_file]
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add_dry_run_option(opts)
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if binary:
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opts.append('--binary')
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if dest_file:
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opts.append("'%s'" % dest_file)
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if state == 'present':
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opts.append('--reverse')
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(rc, _, _) = patch_func(opts)
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return rc == 0
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def apply_patch(patch_func, patch_file, basedir, dest_file=None, binary=False, strip=0, dry_run=False, backup=False, state='present'):
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opts = ['--quiet', '--forward', '--batch', '--reject-file=-',
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"--strip=%s" % strip, "--directory='%s'" % basedir,
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"--input='%s'" % patch_file]
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if dry_run:
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add_dry_run_option(opts)
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if binary:
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opts.append('--binary')
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if dest_file:
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opts.append("'%s'" % dest_file)
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if backup:
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opts.append('--backup --version-control=numbered')
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if state == 'absent':
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opts.append('--reverse')
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(rc, out, err) = patch_func(opts)
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if rc != 0:
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msg = err or out
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raise PatchError(msg)
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def main():
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module = AnsibleModule(
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argument_spec=dict(
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src=dict(type='path', required=True, aliases=['patchfile']),
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dest=dict(type='path', aliases=['originalfile']),
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basedir=dict(type='path'),
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strip=dict(type='int', default=0),
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remote_src=dict(type='bool', default=False),
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# NB: for 'backup' parameter, semantics is slightly different from standard
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# since patch will create numbered copies, not strftime("%Y-%m-%d@%H:%M:%S~")
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backup=dict(type='bool', default=False),
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binary=dict(type='bool', default=False),
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state=dict(type='str', default='present', choices=['absent', 'present']),
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),
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required_one_of=[['dest', 'basedir']],
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supports_check_mode=True,
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)
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# Create type object as namespace for module params
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p = type('Params', (), module.params)
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if not os.access(p.src, os.R_OK):
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module.fail_json(msg="src %s doesn't exist or not readable" % (p.src))
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if p.dest and not os.access(p.dest, os.W_OK):
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module.fail_json(msg="dest %s doesn't exist or not writable" % (p.dest))
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if p.basedir and not os.path.exists(p.basedir):
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module.fail_json(msg="basedir %s doesn't exist" % (p.basedir))
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if not p.basedir:
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p.basedir = os.path.dirname(p.dest)
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patch_bin = module.get_bin_path('patch')
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if patch_bin is None:
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module.fail_json(msg="patch command not found")
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def patch_func(opts):
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return module.run_command('%s %s' % (patch_bin, ' '.join(opts)))
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# patch need an absolute file name
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p.src = os.path.abspath(p.src)
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changed = False
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if not is_already_applied(patch_func, p.src, p.basedir, dest_file=p.dest, binary=p.binary, strip=p.strip, state=p.state):
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try:
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apply_patch(patch_func, p.src, p.basedir, dest_file=p.dest, binary=p.binary, strip=p.strip,
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dry_run=module.check_mode, backup=p.backup, state=p.state)
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changed = True
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except PatchError as e:
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module.fail_json(msg=to_native(e), exception=format_exc())
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module.exit_json(changed=changed)
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if __name__ == '__main__':
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main()
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