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Merge pull request #4691 from cg-soft/git-bare-ref-repo-support

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Add support for bare git reference repos
This commit is contained in:
jctanner 2013-11-14 10:39:57 -08:00
commit a4bd206f09
1 changed files with 75 additions and 33 deletions
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source_control/git
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@ -43,6 +43,12 @@ options:
- What version of the repository to check out. This can be the
full 40-character I(SHA-1) hash, the literal string C(HEAD), a
branch name, or a tag name.
reference:
required: false
default: null
version_added: "1.4"
description:
- Reference repository (see "git clone --reference ...")
remote:
required: false
default: "origin"
@ -81,6 +87,14 @@ options:
description:
- Path to git executable to use. If not supplied,
the normal mechanism for resolving binary paths will be used.
bare:
required: false
default: "no"
choices: [ "yes", "no" ]
version_added: "1.4"
description:
- if C(yes), repository will be created as a bare repo, otherwise
it will be a standard repo with a workspace.
notes:
- "If the task seems to be hanging, first verify remote host is in C(known_hosts).
SSH will prompt user to authorize the first contact with a remote host. To avoid this prompt,
@ -104,15 +118,14 @@ EXAMPLES = '''
import re
import tempfile
def get_version(git_path, dest):
def get_version(git_path, dest, ref="HEAD"):
''' samples the version of the git repo '''
os.chdir(dest)
cmd = "%s show" % (git_path,)
sha = os.popen(cmd).read().split("\n")
sha = sha[0].split()[1]
cmd = "%s rev-parse %s" % (git_path, ref)
sha = os.popen(cmd).read().rstrip("\n")
return sha
def clone(git_path, module, repo, dest, remote, depth, version):
def clone(git_path, module, repo, dest, remote, depth, version, bare, reference):
''' makes a new git repo if it does not already exist '''
dest_dirname = os.path.dirname(dest)
try:
@ -120,16 +133,28 @@ def clone(git_path, module, repo, dest, remote, depth, version):
except:
pass
os.chdir(dest_dirname)
cmd = [ git_path, 'clone', '-o', remote, '--recursive' ]
if is_remote_branch(git_path, module, dest, repo, version) \
or is_remote_tag(git_path, module, dest, repo, version):
cmd.extend([ '--branch', version ])
cmd = [ git_path, 'clone' ]
if bare:
cmd.append('--bare')
else:
cmd.extend([ '--origin', remote, '--recursive' ])
if is_remote_branch(git_path, module, dest, repo, version) \
or is_remote_tag(git_path, module, dest, repo, version):
cmd.extend([ '--branch', version ])
if depth:
cmd.extend([ '--depth', str(depth) ])
if reference:
cmd.extend([ '--reference', str(reference) ])
cmd.extend([ repo, dest ])
return module.run_command(cmd, check_rc=True)
def has_local_mods(git_path, dest):
module.run_command(cmd, check_rc=True)
if bare:
os.chdir(dest)
if remote != 'origin':
module.run_command([git_path, 'remote', 'add', remote, repo], check_rc=True)
def has_local_mods(git_path, dest, bare):
if bare:
return False
os.chdir(dest)
cmd = "%s status -s" % (git_path,)
lines = os.popen(cmd).read().splitlines()
@ -146,7 +171,7 @@ def reset(git_path, module, dest):
cmd = "%s reset --hard HEAD" % (git_path,)
return module.run_command(cmd, check_rc=True)
def get_remote_head(git_path, module, dest, version, remote):
def get_remote_head(git_path, module, dest, version, remote, bare):
cloning = False
if remote == module.params['repo']:
cloning = True
@ -157,7 +182,7 @@ def get_remote_head(git_path, module, dest, version, remote):
# cloning the repo, just get the remote's HEAD version
cmd = '%s ls-remote %s -h HEAD' % (git_path, remote)
else:
head_branch = get_head_branch(git_path, module, dest, remote)
head_branch = get_head_branch(git_path, module, dest, remote, bare)
cmd = '%s ls-remote %s -h refs/heads/%s' % (git_path, remote, head_branch)
elif is_remote_branch(git_path, module, dest, remote, version):
cmd = '%s ls-remote %s -h refs/heads/%s' % (git_path, remote, version)
@ -217,7 +242,7 @@ def is_not_a_branch(git_path, module, dest):
return True
return False
def get_head_branch(git_path, module, dest, remote):
def get_head_branch(git_path, module, dest, remote, bare=False):
'''
Determine what branch HEAD is associated with. This is partly
taken from lib/ansible/utils/__init__.py. It finds the correct
@ -225,7 +250,10 @@ def get_head_branch(git_path, module, dest, remote):
associated with. In the case of a detached HEAD, this will look
up the branch in .git/refs/remotes/<remote>/HEAD.
'''
repo_path = os.path.join(dest, '.git')
if bare:
repo_path = dest
else:
repo_path = os.path.join(dest, '.git')
# Check if the .git is a file. If it is a file, it means that we are in a submodule structure.
if os.path.isfile(repo_path):
try:
@ -248,14 +276,20 @@ def get_head_branch(git_path, module, dest, remote):
f.close()
return branch
def fetch(git_path, module, repo, dest, version, remote):
def fetch(git_path, module, repo, dest, version, remote, bare):
''' updates repo from remote sources '''
os.chdir(dest)
(rc, out1, err1) = module.run_command("%s fetch %s" % (git_path, remote))
if bare:
(rc, out1, err1) = module.run_command([git_path, 'fetch', remote, '+refs/heads/*:refs/heads/*'])
else:
(rc, out1, err1) = module.run_command("%s fetch %s" % (git_path, remote))
if rc != 0:
module.fail_json(msg="Failed to download remote objects and refs")
(rc, out2, err2) = module.run_command("%s fetch --tags %s" % (git_path, remote))
if bare:
(rc, out2, err2) = module.run_command([git_path, 'fetch', remote, '+refs/tags/*:refs/tags/*'])
else:
(rc, out2, err2) = module.run_command("%s fetch --tags %s" % (git_path, remote))
if rc != 0:
module.fail_json(msg="Failed to download remote objects and refs")
(rc, out3, err3) = submodule_update(git_path, module, dest)
@ -314,24 +348,31 @@ def main():
repo=dict(required=True, aliases=['name']),
version=dict(default='HEAD'),
remote=dict(default='origin'),
reference=dict(default=None),
force=dict(default='yes', type='bool'),
depth=dict(default=None, type='int'),
update=dict(default='yes', type='bool'),
executable=dict(default=None),
bare=dict(default='no', type='bool'),
),
supports_check_mode=True
)
dest = os.path.abspath(os.path.expanduser(module.params['dest']))
repo = module.params['repo']
version = module.params['version']
remote = module.params['remote']
force = module.params['force']
depth = module.params['depth']
update = module.params['update']
git_path = module.params['executable'] or module.get_bin_path('git', True)
dest = os.path.abspath(os.path.expanduser(module.params['dest']))
repo = module.params['repo']
version = module.params['version']
remote = module.params['remote']
force = module.params['force']
depth = module.params['depth']
update = module.params['update']
bare = module.params['bare']
reference = module.params['reference']
git_path = module.params['executable'] or module.get_bin_path('git', True)
gitconfig = os.path.join(dest, '.git', 'config')
if bare:
gitconfig = os.path.join(dest, 'config')
else:
gitconfig = os.path.join(dest, '.git', 'config')
rc, out, err, status = (0, None, None, None)
@ -343,7 +384,7 @@ def main():
if module.check_mode:
remote_head = get_remote_head(git_path, module, dest, version, repo)
module.exit_json(changed=True, before=before, after=remote_head)
clone(git_path, module, repo, dest, remote, depth, version)
clone(git_path, module, repo, dest, remote, depth, version, bare, reference)
elif not update:
# Just return having found a repo already in the dest path
# this does no checking that the repo is the actual repo
@ -352,9 +393,8 @@ def main():
module.exit_json(changed=False, before=before, after=before)
else:
# else do a pull
local_mods = has_local_mods(git_path, dest)
local_mods = has_local_mods(git_path, dest, bare)
before = get_version(git_path, dest)
remote_head = get_remote_head(git_path, module, dest, version, remote)
if local_mods:
# failure should happen regardless of check mode
if not force:
@ -363,6 +403,7 @@ def main():
if not module.check_mode:
reset(git_path, module, dest)
# exit if already at desired sha version
remote_head = get_remote_head(git_path, module, dest, version, remote, bare)
if before == remote_head:
if local_mods:
module.exit_json(changed=True, before=before, after=remote_head,
@ -371,11 +412,12 @@ def main():
module.exit_json(changed=False, before=before, after=remote_head)
if module.check_mode:
module.exit_json(changed=True, before=before, after=remote_head)
fetch(git_path, module, repo, dest, version, remote)
fetch(git_path, module, repo, dest, version, remote, bare)
# switch to version specified regardless of whether
# we cloned or pulled
switch_version(git_path, module, dest, remote, version)
if not bare:
switch_version(git_path, module, dest, remote, version)
# determine if we changed anything
after = get_version(git_path, dest)