ansible/library/subversion

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#!/usr/bin/python
# -*- coding: utf-8 -*-
# (c) 2012, Michael DeHaan <michael.dehaan@gmail.com>
#
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
# I wanted to keep this simple at first, so for now this checks out
# from the given branch of a repo at a particular SHA or
# tag. Latest is not supported, you should not be doing
# that. Contribs welcome! -- MPD
# requires subversion on the client.
import re
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# TODO test scenarios:
# hacking/test-module -m library/subversion ; cat /tmp/subversion.log
# hacking/test-module -m library/subversion -a "repo=\"svn+ssh://pen.syskey.com/opt/subversion/gnconf\"" ; cat /tmp/subversion.log
# hacking/test-module -m library/subversion -a "dest=\"/tmp/gnconf\"" ; cat /tmp/subversion.log
# when /tmp/gnconf doesn't exist:
# hacking/test-module -m library/subversion -a "repo=\"svn+ssh://pen.syskey.com/opt/subversion/gnconf\" dest=\"/tmp/gnconf\"" ; cat /tmp/subversion.log
# when /tmp/gnconf is a folder, but its not an svn repo
# hacking/test-module -m library/subversion -a "repo=\"svn+ssh://pen.syskey.com/opt/subversion/gnconf\" dest=\"/tmp/gnconf\"" ; cat /tmp/subversion.log
# when /tmp/gnconf is a folder, but its a file (not a folder)
# hacking/test-module -m library/subversion -a "repo=\"svn+ssh://pen.syskey.com/opt/subversion/gnconf\" dest=\"/tmp/gnconf\"" ; cat /tmp/subversion.log
# when /tmp/gnconf is a folder, when its a different svn URL
# hacking/test-module -m library/subversion -a "repo=\"svn+ssh://pen.syskey.com/opt/subversion/gnconf\" dest=\"/tmp/gnconf\"" ; cat /tmp/subversion.log
# when /tmp/gnconf is a folder, when its a different revision
# hacking/test-module -m library/subversion -a "repo=\"svn+ssh://pen.syskey.com/opt/subversion/gnconf\" dest=\"/tmp/gnconf\"" ; cat /tmp/subversion.log
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def get_version(dest):
''' samples the version of the git repo '''
os.chdir(dest)
cmd = "svn info | grep Revision"
return os.popen(cmd).read()
def checkout(repo, dest):
''' makes a new svn repo if it does not already exist '''
cmd = "svn co %s %s" % (repo, dest)
cmd = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
(out, err) = cmd.communicate()
rc = cmd.returncode
return (rc, out, err)
def reset(dest):
'''
throw away any changes?
TODO doesn't seem like a good idea to me...
TODO throw away non-tracked files?
-- svn st | grep '?' | awk '{print $2}' | xargs rm -rf
'''
os.chdir(dest)
cmd = "svn revert -R ."
cmd = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
(out, err) = cmd.communicate()
rc = cmd.returncode
return (rc, out, err)
def update(module, dest, version):
''' update an existing svn repo '''
os.chdir(dest)
cmd = ''
if version != 'HEAD':
cmd = "svn up -r %s" % version
else:
cmd = "svn up"
cmd = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
(out, err) = cmd.communicate()
rc = cmd.returncode
return (rc, out, err)
# ===========================================
def main():
module = AnsibleModule(
argument_spec = dict(
dest=dict(required=True),
repo=dict(required=True, aliases=['name']),
revision=dict(default='HEAD')
)
)
dest = module.params['dest']
repo = module.params['repo']
revision = module.params['revision']
rc, out, err, status = (0, None, None, None)
# if there is no .svn folder, do a checkout
# else update.
before = None
if not os.path.exists("%s/.svn" % (dest)):
(rc, out, err) = checkout(repo, dest)
if rc != 0:
module.fail_json(msg=err)
else:
# else do an update
before = get_version(dest)
(rc, out, err) = reset(dest)
if rc != 0:
module.fail_json(msg=err)
# handle errors from checkout or pull
if err.find('ERROR') != -1:
module.fail_json(msg=err)
# switch to version specified regardless of whether
# we cloned or pulled
(rc, out, err) = update(module, dest, revision)
if rc != 0:
module.fail_json(msg=err)
# determine if we changed anything
after = get_version(dest)
changed = False
if before != after:
changed = True
module.exit_json(changed=changed, before=before, after=after, msg="")
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# include magic from lib/ansible/module_common.py
#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
main()