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#!/usr/bin/python -tt |
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# (c) 2012, Luis Alberto Perez Lazaro <luisperlazaro@gmail.com> |
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# |
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# This module is free software: you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation, either version 3 of the License, or |
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# (at your option) any later version. |
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# |
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# This software is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this software. If not, see <http://www.gnu.org/licenses/>. |
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# |
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DOCUMENTATION = ''' |
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--- |
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module: patch |
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author: Luis Alberto Perez Lazaro |
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version_added: 0.9 |
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short_description: apply patch files |
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description: |
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- Apply patch files using the GNU patch tool. Before using this module make sure the patch tool is installed. |
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options: |
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patchfile: |
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required: true |
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description: |
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- A patch file as accepted by the gnu patch tool |
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strip: |
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required: true |
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aliases: [ p ] |
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description: |
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- Number that indicates the smallest prefix containing leading slashes that |
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will be stripped from each file name found in the patch file. For more information |
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see the strip parameter of the gnu patch tool. |
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basedir: |
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required: true |
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description: |
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- base directory in which the patch file will be applied |
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examples: |
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- code: "patch: patchfile=/tmp/critical.patch strip=1 basedir=/usr/share/pyshared/paramiko" |
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description: Example git checkout from Ansible Playbooks |
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''' |
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def _run(args): |
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cmd = subprocess.Popen(args, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE) |
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out, err = cmd.communicate() |
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rc = cmd.returncode |
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return (rc, out, err) |
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def _is_already_applied(patch_file, strip): |
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reverse_cmd = "patch -s -R -N -p%s --dry-run < %s" % (strip, patch_file) |
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(rc, _, _) = _run(reverse_cmd) |
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return rc == 0 |
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def _apply_patch(module, patch_file, strip): |
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patch_cmd = "patch -s -N -t -r - -p%s < %s" % (strip, patch_file) |
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(rc, out, err) = _run(patch_cmd) |
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if rc != 0: |
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msg = out if not err else err |
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module.fail_json(msg=msg) |
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def _get_params(module): |
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patchfile = os.path.expanduser(module.params['patchfile']) |
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strip = module.params['strip'] |
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basedir = module.params['basedir'] |
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if basedir: |
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os.chdir(os.path.expanduser(basedir)) |
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if not os.path.exists(patchfile): |
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module.fail_json(msg="patchfile %s doesn't exist" % (patchfile)) |
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if not os.access(patchfile, os.R_OK): |
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module.fail_json(msg="patchfile %s not readable" % (patchfile)) |
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if not os.path.exists(basedir): |
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module.fail_json(msg="basedir %s doesn't exist" % (patchfile)) |
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try: |
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strip = int(strip) |
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except Exception: |
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module.fail_json(msg="p must be a number") |
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return patchfile, strip, basedir |
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# =========================================== |
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def main(): |
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module = AnsibleModule( |
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argument_spec = dict( |
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patchfile=dict(required=True), |
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basedir=dict(), |
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strip=dict(default=0, aliases=['p']) |
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), |
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supports_check_mode = True |
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) |
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patchfile, strip, basedir = _get_params(module) |
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changed = False |
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if module.check_mode: |
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if _is_already_applied(patchfile, strip): |
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module.exit_json(changed=changed) |
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module.exit_json(changed=True) |
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if not _is_already_applied(patchfile, strip): |
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_apply_patch(module, patchfile, strip) |
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changed = True |
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module.exit_json(changed=changed) |
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# include magic from lib/ansible/module_common.py |
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#<<INCLUDE_ANSIBLE_MODULE_COMMON>> |
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main() |
Christoph Haas
10 年前