If we are already up-to-date we just want to display no output.
This means we have to avoid calling "git merge" if there aren't
commits to be merged into the working directory.
Signed-off-by: Shawn O. Pearce <sop@google.com>
Instead of trying to rebase the changes on a topic branch that
has been fully merged into the upstream branch we track, we should
just fast-forward the topic branch to the new upstream revision.
This way the branch doesn't try to rewrite commits that are already
merged in the upstream.
Signed-off-by: Shawn O. Pearce <sop@google.com>
Git may have been installed without its hooks directory, which
means we won't have any hooks in a repo created git repository.
Since we are just deleting the hooks it doesn't matter.
Signed-off-by: Shawn O. Pearce <sop@google.com>
Downloading and streaming a tar into Git is slower than just
letting the native git:// protocol handle the data transfer,
especially when there are multiple revisions available and
Git can perform delta compression across revisions.
Signed-off-by: Shawn O. Pearce <sop@google.com>
Hiding error messages from the remote peer is not a good idea,
as users should be made aware when the remote peer is not a
complete Git repository so they can alert the administrators
and have the repository corrected.
Signed-off-by: Shawn O. Pearce <sop@google.com>
The initial open source release of the Android 1.0 platform had
some problems with its Perforce->Git imports. Google was forced
to rewrite some history to redirect users onto more stable upstream
sources and correct errors in the imports.
Not everyone has the correct android-1.0 tags, as some users did
manage to fetch the platform early, before the mirror sites crashed
and the history was rewritten.
This change is a band-aid to ensure any stale android-1.0 tags are
get updated to the corrected version. It should be backed out at
some point in the near future, when we can be fairly certain that
everyone has the correct android-1.0 tags.
Signed-off-by: Shawn O. Pearce <sop@google.com>
Now `repo download . 1402` would download the change numbered 1402
into the current project and check it out for the user, using a
detached HEAD. `repo sync .` would back out of the change and
return to the upstream version.
Multiple projects can be fetched at once by listing them out on
the command line as different arguments.
Individual patch sets can be selected by adding a '/n' to indicate
the n-th patch set should be downloaded instead of the default of
patch set 1.
Signed-off-by: Shawn O. Pearce <sop@google.com>
This way users are well aware of which account we used when the
uploads are complete, so they can be certain to sign into the web
application with that user identity.
Signed-off-by: Shawn O. Pearce <sop@google.com>
If the reflog for the upstream branch has only 1 entry in it, as
the branch has been updated only once, we can get back the 0{40}
object id from `git rev-parse upstream@{1}`, in which case we should
consider it to be the same as if upstream@{1} is not defined.
Signed-off-by: Shawn O. Pearce <sop@google.com>
