forall: handle missing project refs betterv2.13.8

If the project exists, but the ref the manifest wants doesn't exist,
don't throw an error (and abort the process in general).  This can
come up with a partially synced tree: the manifest is up-to-date,
but not all the projects have yet been synced.

Bug: https://crbug.com/gerrit/14289
Change-Id: Iba97413c476544223ffe518198c900c2193a00ed
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/301262
Reviewed-by: LaMont Jones <lamontjones@google.com>
Reviewed-by: Mike Frysinger <vapier@google.com>
Tested-by: Mike Frysinger <vapier@google.com>

1 files changed, 9 insertions, 2 deletions

diff --git a/subcmds/forall.py b/subcmds/forall.py
index aa998d20..f0ce97cb 100644
--- a/subcmds/forall.py
+++ b/subcmds/forall.py
@@ -24,6 +24,7 @@ import subprocess
 
 from color import Coloring
 from command import DEFAULT_LOCAL_JOBS, Command, MirrorSafeCommand, WORKER_BATCH_SIZE
+from error import ManifestInvalidRevisionError
 
 _CAN_COLOR = [
     'branch',
@@ -252,7 +253,7 @@ without iterating through the remaining projects.
       rc = rc or errno.EINTR
     except Exception as e:
       # Catch any other exceptions raised
-      print('Got an error, terminating the pool: %s: %s' %
+      print('forall: unhandled error, terminating the pool: %s: %s' %
             (type(e).__name__, e),
             file=sys.stderr)
       rc = rc or getattr(e, 'errno', 1)
@@ -295,7 +296,13 @@ def DoWork(project, mirror, opt, cmd, shell, cnt, config):
   setenv('REPO_PROJECT', project.name)
   setenv('REPO_PATH', project.relpath)
   setenv('REPO_REMOTE', project.remote.name)
-  setenv('REPO_LREV', '' if mirror else project.GetRevisionId())
+  try:
+    # If we aren't in a fully synced state and we don't have the ref the manifest
+    # wants, then this will fail.  Ignore it for the purposes of this code.
+    lrev = '' if mirror else project.GetRevisionId()
+  except ManifestInvalidRevisionError:
+    lrev = ''
+  setenv('REPO_LREV', lrev)
   setenv('REPO_RREV', project.revisionExpr)
   setenv('REPO_UPSTREAM', project.upstream)
   setenv('REPO_DEST_BRANCH', project.dest_branch)