769bd9125a
Detect when on a 'no branch' branch. If so, checkout the HEAD branch as reported by 'git remote show <remote>'. That should put the repo back on a branch such that git can then merge changes as necessary. In addition, removed hard-coded references to origin and replaced with remote var.
269 lines
8.7 KiB
Python
Executable file
269 lines
8.7 KiB
Python
Executable file
#!/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/>.
|
|
|
|
DOCUMENTATION = '''
|
|
---
|
|
module: git
|
|
author: Michael DeHaan
|
|
version_added: 0.0.1
|
|
short_description: Deploy software (or files) from git checkouts
|
|
description:
|
|
- Manage git checkouts of repositories to deploy files or software.
|
|
options:
|
|
repo:
|
|
required: true
|
|
aliases: [ name ]
|
|
description:
|
|
- git, ssh, or http protocol address of the git repository.
|
|
dest:
|
|
required: true
|
|
description:
|
|
- Absolute path of where the repository should be checked out to.
|
|
version:
|
|
required: false
|
|
default: "HEAD"
|
|
description:
|
|
- What version of the repository to check out. This can be the
|
|
git I(SHA), the literal string I(HEAD), branch name, or a tag name.
|
|
remote:
|
|
required: false
|
|
default: "origin"
|
|
description:
|
|
- Name of the remote branch.
|
|
force:
|
|
required: false
|
|
default: "yes"
|
|
choices: [ yes, no ]
|
|
description:
|
|
- (New in 0.7) If yes, any modified files in the working
|
|
repository will be discarded. Prior to 0.7, this was always
|
|
'yes' and could not be disabled.
|
|
examples:
|
|
- code: git repo=git://foosball.example.org/path/to/repo.git dest=/srv/checkout version=release-0.22
|
|
description: Example git checkout from Ansible Playbooks
|
|
'''
|
|
|
|
import re
|
|
import tempfile
|
|
|
|
def get_version(dest):
|
|
''' samples the version of the git repo '''
|
|
os.chdir(dest)
|
|
cmd = "git show --abbrev-commit"
|
|
sha = os.popen(cmd).read().split("\n")
|
|
sha = sha[0].split()[1]
|
|
return sha
|
|
|
|
def clone(repo, dest):
|
|
''' makes a new git repo if it does not already exist '''
|
|
try:
|
|
os.makedirs(os.path.dirname(dest))
|
|
except:
|
|
pass
|
|
cmd = "git clone %s %s" % (repo, dest)
|
|
cmd = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE, cwd=tempfile.gettempdir())
|
|
(out, err) = cmd.communicate()
|
|
rc = cmd.returncode
|
|
return (rc, out, err)
|
|
|
|
|
|
def has_local_mods(dest):
|
|
os.chdir(dest)
|
|
cmd = "git status -s"
|
|
lines = os.popen(cmd).read().splitlines()
|
|
lines = filter(lambda c: re.search('^\\?\\?.*$',c) == None,lines)
|
|
return len(lines) > 0
|
|
|
|
def reset(module,dest,force):
|
|
'''
|
|
Resets the index and working tree to HEAD.
|
|
Discards any changes to tracked files in working
|
|
tree since that commit.
|
|
'''
|
|
os.chdir(dest)
|
|
if not force and has_local_mods(dest):
|
|
module.fail_json(msg="Local modifications exist in repository (force=no).")
|
|
cmd = "git reset --hard HEAD"
|
|
cmd = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
|
|
(out, err) = cmd.communicate()
|
|
rc = cmd.returncode
|
|
return (rc, out, err)
|
|
|
|
def get_branches(module, dest):
|
|
os.chdir(dest)
|
|
branches = []
|
|
cmd = "git branch -a"
|
|
cmd = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
|
|
out, err = cmd.communicate()
|
|
if cmd.returncode != 0:
|
|
module.fail_json(msg="Could not determine branch data - received %s" % out)
|
|
for line in out.split('\n'):
|
|
branches.append(line.strip())
|
|
return branches
|
|
|
|
def is_remote_branch(module, dest, remote, branch):
|
|
branches = get_branches(module, dest)
|
|
rbranch = 'remotes/%s/%s' % (remote, branch)
|
|
if rbranch in branches:
|
|
return True
|
|
else:
|
|
return False
|
|
|
|
def is_local_branch(module, dest, branch):
|
|
branches = get_branches(module, dest)
|
|
lbranch = '%s' % branch
|
|
if lbranch in branches:
|
|
return True
|
|
elif '* %s' % branch in branches:
|
|
return True
|
|
else:
|
|
return False
|
|
|
|
def is_current_branch(module, dest, branch):
|
|
branches = get_branches(module, dest)
|
|
for b in branches:
|
|
if b.startswith('* '):
|
|
cur_branch = b
|
|
if branch == cur_branch or '* %s' % branch == cur_branch:
|
|
return True
|
|
else:
|
|
return True
|
|
|
|
def is_not_a_branch(module, dest):
|
|
branches = get_branches(module, dest)
|
|
for b in branches:
|
|
if b.startswith('* ') and 'no branch' in b:
|
|
return True
|
|
return False
|
|
|
|
def get_head_branch(module, dest, remote):
|
|
os.chdir(dest)
|
|
head = ''
|
|
cmd = "git remote show %s" % remote
|
|
cmd = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
|
|
out, err = cmd.communicate()
|
|
if cmd.returncode != 0:
|
|
module.fail_json(msg="Could not determine HEAD branch via git remote show")
|
|
for line in out.split('\n'):
|
|
if 'HEAD branch' in line:
|
|
head = line.split()[-1].strip()
|
|
return head
|
|
|
|
def pull(module, repo, dest, version, remote):
|
|
''' updates repo from remote sources '''
|
|
os.chdir(dest)
|
|
branches = get_branches(module, dest)
|
|
cur_branch = ''
|
|
for b in branches:
|
|
if b.startswith('* '):
|
|
cur_branch = b
|
|
if is_local_branch(module, dest, version) and not is_current_branch(module, dest, version):
|
|
(rc, out, err) = switch_version(module, dest, remote, version)
|
|
if rc != 0:
|
|
module.fail_json(msg=err)
|
|
if is_not_a_branch(module, dest):
|
|
head_branch = get_head_branch(module, dest, remote)
|
|
(rc, out, err) = switch_version(module, dest, remote, head_branch)
|
|
if rc != 0:
|
|
module.fail_json(msg=err)
|
|
|
|
cmd = "git pull -u %s" % remote
|
|
cmd = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
|
|
out, err = cmd.communicate()
|
|
rc = cmd.returncode
|
|
return (rc, out, err)
|
|
|
|
def switch_version(module, dest, remote, version):
|
|
''' once pulled, switch to a particular SHA, tag, or branch '''
|
|
os.chdir(dest)
|
|
cmd = ''
|
|
if version != 'HEAD':
|
|
if not is_local_branch(module, dest, version) and is_remote_branch(module, dest, remote, version):
|
|
cmd = "git checkout --track -b %s %s/%s" % (version, remote, version)
|
|
else:
|
|
cmd = "git checkout --force %s" % version
|
|
else:
|
|
# is there a better way to do this?
|
|
cmd = "git rebase %s" % remote
|
|
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']),
|
|
version=dict(default='HEAD'),
|
|
remote=dict(default='origin'),
|
|
force=dict(default='yes', choices=['yes', 'no'], aliases=['force'])
|
|
)
|
|
)
|
|
|
|
dest = os.path.expanduser(module.params['dest'])
|
|
repo = module.params['repo']
|
|
version = module.params['version']
|
|
remote = module.params['remote']
|
|
force = module.boolean(module.params['force'])
|
|
|
|
gitconfig = os.path.join(dest, '.git', 'config')
|
|
|
|
rc, out, err, status = (0, None, None, None)
|
|
|
|
# if there is no git configuration, do a clone operation
|
|
# else pull and switch the version
|
|
before = None
|
|
local_mods = False
|
|
if not os.path.exists(gitconfig):
|
|
(rc, out, err) = clone(repo, dest)
|
|
if rc != 0:
|
|
module.fail_json(msg=err)
|
|
else:
|
|
# else do a pull
|
|
local_mods = has_local_mods(dest)
|
|
before = get_version(dest)
|
|
(rc, out, err) = reset(module,dest,force)
|
|
if rc != 0:
|
|
module.fail_json(msg=err)
|
|
(rc, out, err) = pull(module, repo, dest, version, remote)
|
|
if rc != 0:
|
|
module.fail_json(msg=err)
|
|
|
|
# switch to version specified regardless of whether
|
|
# we cloned or pulled
|
|
(rc, out, err) = switch_version(module, dest, remote, version)
|
|
if rc != 0:
|
|
module.fail_json(msg=err)
|
|
|
|
# determine if we changed anything
|
|
after = get_version(dest)
|
|
changed = False
|
|
|
|
if before != after or local_mods:
|
|
changed = True
|
|
|
|
module.exit_json(changed=changed, before=before, after=after)
|
|
|
|
# include magic from lib/ansible/module_common.py
|
|
#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
|
|
main()
|