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124 lines
3.5 KiB
Python
124 lines
3.5 KiB
Python
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# (c) 2012, Daniel Hokka Zakrisson <daniel@hozac.com>
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#
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# This file is part of Ansible
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#
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# Ansible 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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# Ansible 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 Ansible. If not, see <http://www.gnu.org/licenses/>.
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import re
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import os
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def present(module, name, regexp, line, insertafter):
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f = open(name, 'rb')
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lines = f.readlines()
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f.close()
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mre = re.compile(regexp)
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if not mre.match(line):
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module.fail_json(msg="line= doesn't match regexp=")
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if insertafter in ('BOF', 'EOF'):
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iare = None
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else:
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iare = re.compile(insertafter)
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index = [-1, -1]
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for lineno in range(0, len(lines)):
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if mre.match(lines[lineno]):
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index[0] = lineno
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elif iare is not None and iare.match(lines[lineno]):
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# + 1 for the next line
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index[1] = lineno + 1
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# Regexp matched a line in the file
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if index[0] != -1:
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if lines[index[0]] == line + os.linesep:
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msg = ''
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changed = False
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else:
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lines[index[0]] = line + os.linesep
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msg = 'line replaced'
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changed = True
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# Add it to the beginning of the file
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elif insertafter == 'BOF':
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lines.insert(0, line + os.linesep)
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msg = 'line added'
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changed = True
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# Add it to the end of the file if requested or if insertafter= didn't match
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elif insertafter == 'EOF' or index[1] == -1:
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lines.append(line + os.linesep)
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msg = 'line added'
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changed = True
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# insertafter= matched
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else:
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lines.insert(index[1], line + os.linesep)
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msg = 'line added'
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changed = True
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if changed:
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f = open(name, 'wb')
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f.writelines(lines)
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f.close()
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module.exit_json(changed=changed, msg=msg)
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def absent(module, name, regexp):
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f = open(name, 'rb')
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lines = f.readlines()
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f.close()
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cre = re.compile(regexp)
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found = []
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def matcher(line):
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if cre.match(line):
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found.append(line)
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return False
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else:
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return True
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lines = filter(matcher, lines)
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changed = len(found) > 0
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if changed:
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f = open(name, 'wb')
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f.writelines(lines)
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f.close()
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module.exit_json(changed=changed, found=len(found))
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def main():
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module = AnsibleModule(
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argument_spec = dict(
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name=dict(required=True, aliases=['dest', 'destfile']),
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state=dict(default='present', choices=['absent', 'present']),
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regexp=dict(required=True),
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line=dict(aliases=['value']),
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insertafter=dict(default='EOF'),
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),
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)
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params = module.params
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if params['state'] == 'present':
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if 'line' not in params:
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module.fail_json(msg='line= is required with state=present')
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present(module, params['name'], params['regexp'], params['line'],
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params['insertafter'])
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else:
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absent(module, params['name'], params['regexp'])
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# this is magic, see lib/ansible/module_common.py
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#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
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main()
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