tree 5c56a770d83c5a7e6826cdd5c4e35fa130a786cb
parent 0667b8ec4d8b10ebc57271642953de6852c3331b
author Ivan Frade <ifrade@google.com> 1621875188 -0700
committer Ivan Frade <ifrade@google.com> 1622063248 -0700

RepoCommand: Retry commit on LockFailure

When the target repository is receiving commits from other sources,
the repo command commit can fail with a LOCK_FAILURE. We could let
callers retry, but then the command needs to redo all the work (opening
all subrepos to recreate the tree).

Retry the commit in LOCK_FAILURE inside the command. The commit
rewrites the whole tree, so it shouldn't have merge errors. Use an
exponential delay with jitter for the retries.

Change-Id: I517b6f2afd16a4b695e6cf471b5d6cf492024ec4
Signed-off-by: Ivan Frade <ifrade@google.com>