Added Bazaar module, based on the Git module
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#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# (c) 2013, André Paramés <git@andreparames.com>
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# Based on the Git module by 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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DOCUMENTATION = u'''
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---
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module: bzr
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author: André Paramés
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version_added: 0.0.1
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short_description: Deploy software (or files) from bzr branches
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description:
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- Manage I(bzr) branches to deploy files or software.
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options:
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parent:
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required: true
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aliases: [ name ]
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description:
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- SSH or HTTP protocol address of the parent branch.
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dest:
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required: true
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description:
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- Absolute path of where the branch should be cloned to.
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version:
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required: false
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default: "head"
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description:
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- What version of the branch to clone. This can be the
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bzr revno or revid.
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force:
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required: false
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default: "yes"
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choices: [ yes, no ]
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description:
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- If C(yes), any modified files in the working
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tree will be discarded.
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examples:
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- code: "bzr parent=bzr+ssh://foosball.example.org/path/to/branch dest=/srv/checkout version=22"
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description: Example bzr checkout from Ansible Playbooks
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'''
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import re
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import tempfile
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def get_version(dest):
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''' samples the version of the bzr branch'''
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os.chdir(dest)
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cmd = "bzr revno"
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revno = os.popen(cmd).read().strip()
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return revno
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def clone(module, parent, dest, version):
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''' makes a new bzr branch if it does not already exist '''
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dest_dirname = os.path.dirname(dest)
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try:
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os.makedirs(dest_dirname)
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except:
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pass
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os.chdir(dest_dirname)
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if version.lower() != 'head':
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cmd = "bzr branch -r %s %s %s" % (version, parent, dest)
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else:
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cmd = "bzr branch %s %s" % (parent, dest)
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return module.run_command(cmd, check_rc=True)
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def has_local_mods(dest):
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os.chdir(dest)
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cmd = "bzr status -S"
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lines = os.popen(cmd).read().splitlines()
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lines = filter(lambda c: not re.search('^\\?\\?.*$', c), lines)
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return len(lines) > 0
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def reset(module,dest,force):
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'''
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Resets the index and working tree to head.
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Discards any changes to tracked files in the working
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tree since that commit.
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'''
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os.chdir(dest)
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if not force and has_local_mods(dest):
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module.fail_json(msg="Local modifications exist in branch (force=no).")
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return module.run_command("bzr revert", check_rc=True)
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def fetch(module, dest, version):
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''' updates branch from remote sources '''
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os.chdir(dest)
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if version.lower() != 'head':
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(rc, out, err) = module.run_command("bzr pull -r %s" % version)
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else:
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(rc, out, err) = module.run_command("bzr pull")
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if rc != 0:
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module.fail_json(msg="Failed to pull")
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return (rc, out, err)
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def switch_version(module, dest, version):
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''' once pulled, switch to a particular revno or revid'''
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os.chdir(dest)
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cmd = ''
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if version.lower() != 'head':
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cmd = "bzr revert -r %s" % version
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else:
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cmd = "bzr revert"
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return module.run_command(cmd, check_rc=True)
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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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parent=dict(required=True, aliases=['name']),
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version=dict(default='head'),
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force=dict(default='yes', type='bool')
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)
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)
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dest = os.path.abspath(os.path.expanduser(module.params['dest']))
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parent = module.params['parent']
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version = module.params['version']
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force = module.params['force']
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bzrconfig = os.path.join(dest, '.bzr', 'branch', 'branch.conf')
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rc, out, err, status = (0, None, None, None)
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# if there is no bzr configuration, do a branch operation
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# else pull and switch the version
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before = None
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local_mods = False
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if not os.path.exists(bzrconfig):
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(rc, out, err) = clone(module, parent, dest, version)
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else:
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# else do a pull
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local_mods = has_local_mods(dest)
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before = get_version(dest)
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(rc, out, err) = reset(module, 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) = fetch(module, dest, version)
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if rc != 0:
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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) = switch_version(module, dest, version)
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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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