152 lines
5 KiB
Python
Executable file
152 lines
5 KiB
Python
Executable file
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# (c) 2012, Michael DeHaan <michael.dehaan@gmail.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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# I wanted to keep this simple at first, so for now this checks out
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# from the given branch of a repo at a particular SHA or
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# tag. Latest is not supported, you should not be doing
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# that. Contribs welcome! -- MPD
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# requires subversion and grep on the client.
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import re
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def get_version(dest):
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''' samples the version of the git repo '''
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os.chdir(dest)
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cmd = "svn info"
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revision = filter(lambda l: re.search('Revision',l) != None,os.popen(cmd).read().splitlines())
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url = filter(lambda l: re.search('^URL',l) != None,os.popen(cmd).read().splitlines())
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return [revision[0],url[0]]
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def checkout(repo, dest):
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''' makes a new svn repo if it does not already exist '''
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cmd = "svn co %s %s" % (repo, dest)
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cmd = subprocess.Popen(cmd, 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 switch(repo, dest):
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''' makes a new svn repo if it does not already exist '''
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cmd = "svn sw %s %s" % (repo, dest)
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cmd = subprocess.Popen(cmd, 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 has_local_mods(dest):
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os.chdir(dest)
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cmd = "svn status"
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lines = os.popen(cmd).read().splitlines()
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filtered = filter(lambda c: re.search('^\\?.*$',c) == None,lines)
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return len(filtered) > 0
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def reset(dest,force):
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'''
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Reset the repo:
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force: if true, then remove any local modifications. Else, fail if there are local modifications
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'''
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if has_local_mods(dest):
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if force:
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cmd = "svn revert -R ."
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cmd = subprocess.Popen(cmd, 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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else:
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return (-1,"ERROR: modified files exist in the repository.","")
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return (0,"","")
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def update(module, dest, version):
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''' update an existing svn repo '''
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os.chdir(dest)
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cmd = ''
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if version != 'HEAD':
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cmd = "svn up -r %s" % version
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else:
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cmd = "svn up"
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cmd = subprocess.Popen(cmd, 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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# ===========================================
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def main():
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module = AnsibleModule(
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argument_spec = dict(
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dest=dict(required=True),
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repo=dict(required=True, aliases=['name']),
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revision=dict(default='HEAD'),
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force=dict(default='yes', choices=['yes', 'no'], aliases=['force'])
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)
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)
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dest = os.path.expanduser(module.params['dest'])
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repo = module.params['repo']
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revision = module.params['revision']
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force = module.boolean(module.params['force'])
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rc, out, err, status = (0, None, None, None)
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# if there is no .svn folder, do a checkout
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# else update.
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before = None
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local_mods = False
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if not os.path.exists("%s/.svn" % (dest)):
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if os.path.exists(dest):
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module.fail_json(msg="%s folder already exists, but its not a subversion repository." % (dest))
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else:
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(rc, out, err) = checkout(repo, dest)
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if rc != 0:
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module.fail_json(msg=err)
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else:
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local_mods = has_local_mods(dest)
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# else do an update
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before = get_version(dest)
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(rc, out, err) = reset(dest,force)
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if rc != 0:
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module.fail_json(msg=err)
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(rc, out, err) = switch(repo, dest)
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if rc != 0:
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module.fail_json(msg=err)
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# handle errors from switch or pull
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if err.find('ERROR') != -1:
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module.fail_json(msg=err)
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# switch to version specified regardless of whether
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# we cloned or pulled
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(rc, out, err) = update(module, dest, revision)
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if rc != 0:
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module.fail_json(msg=err)
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# determine if we changed anything
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after = get_version(dest)
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changed = False
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if before != after or local_mods:
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changed = True
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module.exit_json(changed=changed, before=before, after=after)
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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()
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