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make git updates respect depth (#3254)

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* make git updates respect depth

until now `fetch` gets all tags and heads at full depth, this change
* uses `depth` argument for `fetch`
* only get the specified `version` in `fetch`

* fixes #14954

* treat combination of refspec and depth correctly

* be more conservative for non-depth fetch
This commit is contained in:
Robin Roth 2016-04-14 18:40:23 +02:00 committed by Toshio Kuratomi
parent ea199ecac0
commit f1bacc1d3f
1 changed files with 40 additions and 15 deletions
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45
source_control/git.py
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@ -339,7 +339,11 @@ def clone(git_path, module, repo, dest, remote, depth, version, bare,
module.run_command([git_path, 'remote', 'add', remote, repo], check_rc=True, cwd=dest)
if refspec:
module.run_command([git_path, 'fetch', remote, refspec], check_rc=True, cwd=dest)
cmd = [git_path, 'fetch']
if depth:
cmd.extend([ '--depth', str(depth) ])
cmd.extend([remote, refspec])
module.run_command(cmd, check_rc=True, cwd=dest)
if verify_commit:
verify_commit_sign(git_path, module, dest, version)
@ -500,32 +504,53 @@ def set_remote_url(git_path, module, repo, dest, remote):
if rc != 0:
module.fail_json(msg="Failed to %s: %s %s" % (label, out, err))
def fetch(git_path, module, repo, dest, version, remote, bare, refspec):
def fetch(git_path, module, repo, dest, version, remote, depth, bare, refspec):
''' updates repo from remote sources '''
set_remote_url(git_path, module, repo, dest, remote)
commands = []
fetch_str = 'download remote objects and refs'
fetch_cmd = [git_path, 'fetch']
if bare:
refspecs = ['+refs/heads/*:refs/heads/*', '+refs/tags/*:refs/tags/*']
refspecs = []
if depth:
# try to find the minimal set of refs we need to fetch to get a
# successful checkout
if refspec:
refspecs.append(refspec)
commands.append((fetch_str, [git_path, 'fetch', remote] + refspecs))
elif version == 'HEAD':
refspecs.append('HEAD')
elif is_remote_branch(git_path, module, dest, repo, version):
refspecs.append('+refs/heads/'+version+':refs/heads/'+version)
elif is_remote_tag(git_path, module, dest, repo, version):
refspecs.append('+refs/tags/'+version+':refs/tags/'+version)
if refspecs:
# if refspecs is empty, i.e. version is neither heads nor tags
# fall back to a full clone, otherwise we might not be able to checkout
# version
fetch_cmd.extend(['--depth', str(depth)])
fetch_cmd.extend([remote])
if not depth:
# don't try to be minimalistic but do a full clone
if bare:
refspecs = ['+refs/heads/*:refs/heads/*', '+refs/tags/*:refs/tags/*']
else:
# unlike in bare mode, there's no way to combine the
# additional refspec with the default git fetch behavior,
# so use two commands
commands.append((fetch_str, [git_path, 'fetch', remote]))
commands.append((fetch_str, fetch_cmd))
refspecs = ['+refs/tags/*:refs/tags/*']
if refspec:
refspecs.append(refspec)
commands.append((fetch_str, [git_path, 'fetch', remote] + refspecs))
commands.append((fetch_str, fetch_cmd + refspecs))
for (label,command) in commands:
(rc,out,err) = module.run_command(command, cwd=dest)
if rc != 0:
module.fail_json(msg="Failed to %s: %s %s" % (label, out, err))
module.fail_json(msg="Failed to %s: %s %s" % (label, out, err), cmd=command)
def submodules_fetch(git_path, module, remote, track_submodules, dest):
changed = False
@ -638,7 +663,7 @@ def switch_version(git_path, module, dest, remote, version, verify_commit):
(rc, out1, err1) = module.run_command(cmd, cwd=dest)
if rc != 0:
if version != 'HEAD':
module.fail_json(msg="Failed to checkout %s" % (version))
module.fail_json(msg="Failed to checkout %s" % (version), stdout=out1, stderr=err1)
else:
module.fail_json(msg="Failed to checkout branch %s" % (branch))
@ -782,7 +807,7 @@ def main():
if repo_updated is None:
if module.check_mode:
module.exit_json(changed=True, before=before, after=remote_head)
fetch(git_path, module, repo, dest, version, remote, bare, refspec)
fetch(git_path, module, repo, dest, version, remote, depth, bare, refspec)
repo_updated = True
# switch to version specified regardless of whether