Pull request hook fails to find pathspec

[rotu]

Description

CI fails to find pathspec for pull request hook. I believe it’s likely looking at the wrong remote for the vcs import step (the targeted repo versus the repo containing the pull request hook)

Expected Behavior

PR branch is pulled in and tested.

Actual Behavior

Failure log:

https://github.com/ros2/rmw_cyclonedds/runs/551468986?check_suite_focus=true

bash -c vcs import src/ < package.repo
1290
  === src/rmw_cyclonedds (git) ===
1291
  Could not checkout ref 'readme-edits': error: pathspec 'readme-edits' did not match any file(s) known to git

[emersonknapp]

This seems to happen occasionally, maybe we need some retry logic around the checkout.

[christophebedard]

@rotu @emersonknapp is this still happening? The CI job logs are gone so I'm not sure how to go about reproducing this.

[emersonknapp]

I have seen this happen occasionally, yes, but I don't have any concrete examples to point to right now. I have also seen it happen on the ci.ros2.org buildfarm, so I'm fairly certain it's not specifically an action-ros-ci issue - but if we can do anything to mitigate it, that would be valuable

[christophebedard]

I see. Then if it's just a git/network flakiness issue, --retry N (with vcs import) can probably help.