def _set_project_revisions(projects):
"""Sets the revisionExpr for a list of projects.
Because of the limit of open file descriptors allowed, length of projects
should not be overly large. Recommend calling this function multiple times
with each call not exceeding NUM_BATCH_RETRIEVE_REVISIONID projects.
@param projects: List of project objects to set the revionExpr for.
"""
# Retrieve the commit id for each project based off of it's current
# revisionExpr and it is not already a commit id.
project_gitcmds = [
(project,
git_command.GitCommand(
None, ['ls-remote', project.remote.url, project.revisionExpr],
capture_stdout=True,
cwd='/tmp')) for project in projects
if not git_config.IsId(project.revisionExpr)
]
for proj, gitcmd in project_gitcmds:
if gitcmd.Wait():
print('FATAL: Failed to retrieve revisionExpr for %s' % proj)
sys.exit(1)
revisionExpr = gitcmd.stdout.split('\t')[0]
if not revisionExpr:
raise (ManifestParseError(
'Invalid SHA-1 revision project %s (%s)' %
(proj.remote.url, proj.revisionExpr)))
proj.revisionExpr = revisionExpr
def _set_project_revisions(projects):
"""Sets the revisionExpr for a list of projects.
Because of the limit of open file descriptors allowed, length of projects
should not be overly large. Recommend calling this function multiple times
with each call not exceeding NUM_BATCH_RETRIEVE_REVISIONID projects.
Args:
projects: List of project objects to set the revionExpr for.
"""
# Retrieve the commit id for each project based off of it's current
# revisionExpr and it is not already a commit id.
with multiprocessing.Pool(NUM_BATCH_RETRIEVE_REVISIONID) as pool:
results_iter = pool.imap_unordered(
_get_project_revision,
((i, project.remote.url, project.revisionExpr)
for i, project in enumerate(projects)
if not git_config.IsId(project.revisionExpr)),
chunksize=8)
for (i, rc, revisionExpr) in results_iter:
project = projects[i]
if rc:
print('FATAL: Failed to retrieve revisionExpr for %s' %
project.name)
pool.terminate()
sys.exit(1)
if not revisionExpr:
pool.terminate()
raise ManifestParseError(
'Invalid SHA-1 revision project %s (%s)' %
(project.remote.url, project.revisionExpr))
project.revisionExpr = revisionExpr
def generate_gitc_manifest(gitc_manifest, manifest, paths=None):
"""Generate a manifest for shafsd to use for this GITC client.
Args:
gitc_manifest: Current gitc manifest, or None if there isn't one yet.
manifest: A GitcManifest object loaded with the current repo manifest.
paths: List of project paths we want to update.
"""
print('Generating GITC Manifest by fetching revision SHAs for each '
'project.')
if paths is None:
paths = list(manifest.paths.keys())
groups = [x for x in re.split(r'[,\s]+', manifest.GetGroupsStr()) if x]
# Convert the paths to projects, and filter them to the matched groups.
projects = [manifest.paths[p] for p in paths]
projects = [p for p in projects if p.MatchesGroups(groups)]
if gitc_manifest is not None:
for path, proj in manifest.paths.items():
if not proj.MatchesGroups(groups):
continue
if not proj.upstream and not git_config.IsId(proj.revisionExpr):
proj.upstream = proj.revisionExpr
if path not in gitc_manifest.paths:
# Any new projects need their first revision, even if we weren't asked
# for them.
projects.append(proj)
elif path not in paths:
# And copy revisions from the previous manifest if we're not updating
# them now.
gitc_proj = gitc_manifest.paths[path]
if gitc_proj.old_revision:
proj.revisionExpr = None
proj.old_revision = gitc_proj.old_revision
else:
proj.revisionExpr = gitc_proj.revisionExpr
_set_project_revisions(projects)
if gitc_manifest is not None:
for path, proj in gitc_manifest.paths.items():
if proj.old_revision and path in paths:
# If we updated a project that has been started, keep the old-revision
# updated.
repo_proj = manifest.paths[path]
repo_proj.old_revision = repo_proj.revisionExpr
repo_proj.revisionExpr = None
# Convert URLs from relative to absolute.
for _name, remote in manifest.remotes.items():
remote.fetchUrl = remote.resolvedFetchUrl
# Save the manifest.
save_manifest(manifest)
