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sync: Handle tag ref in "upstream" field

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repo sync only handles a git tag properly when it is in the "revision"
field. However, "revision locked manifests" (`repo manifest
--revision-as-HEAD`) specifies the tag in the "upstream" field. The
issue is that this tag is not fetched. Only the commit that the tag
points to is fetched. This cases issues as
self._CheckForImmutableRevision() runs and comes to the conclusion that
the tag was changed while in fact, it was just not fetched. This causes
a full sync.

File docs/manifest-format.md, section Element-project:
> Attribute upstream: Name of the Git ref in which a sha1 can be found.
Used when syncing a revision locked manifest in -c mode to avoid having
to sync the entire ref space. Project elements not setting their own
upstream will inherit this value.

Change-Id: I0507d3a5f30aee8920a9f820bafedb48dd5db554
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/323620
Reviewed-by: Mike Frysinger <vapier@google.com>
Tested-by: Robin Schneider <ypid@riseup.net>
This commit is contained in:
Robin Schneider 2021-11-13 22:55:32 +01:00
parent 333c0a499b
commit 9c1fc5bc5d
1 changed files with 4 additions and 1 deletions
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5
project.py
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@ -2044,8 +2044,11 @@ class Project(object):
if current_branch_only:
if self.revisionExpr.startswith(R_TAGS):
# this is a tag and its sha1 value should never change
# This is a tag and its commit id should never change.
tag_name = self.revisionExpr[len(R_TAGS):]
elif self.upstream and self.upstream.startswith(R_TAGS):
# This is a tag and its commit id should never change.
tag_name = self.upstream[len(R_TAGS):]
if is_sha1 or tag_name is not None:
if self._CheckForImmutableRevision():