PSA: it's now possible to start Jenkins CI by adding `request-ci` label to PRs

[mmarchini]

As title says, it's now possible to start Jenkins CI by adding request-ci label to PRs. CI will start a few minutes after the label is added. No extra involvement is needed from collaborators to start the CI after the label is added. Collaborators can add the label while creating new PRs, which will result in the CI starting soon after the PR is opened.

Since this was added recently, let's treat it as experimental for now (at least until it has been more extensively tested in this repository), but it should work on most cases. If anyone finds a bug with it, please leave a comment here. Once we have confidence this feature is stable we should update the collaborators guide to instruct new collaborators to use it as well.

[gengjiawen]

I tried in #34629, looks like failed.

Not sure it's related to graphql query
https://github.com/nodejs/node/actions/runs/195904308

.github#L1
Unexpected input(s) 'owner', 'repo', valid inputs are ['query']

[targos]

BTW it looks like the job's name is wrong (commitQueue)

[mmarchini]

@gengjiawen that warning is ignorable, unfortunately I don't know how to supress it. Here's where the action failed: https://github.com/nodejs/node/runs/948079537?check_suite_focus=true. No relevant error messages. I'll increase verbosity of the logs to see if we get any clues.

@targos good catch, I'll fix the job name.

[mmarchini]

@gengjiawen I tried again on the same PR and it worked 🤔. Let me know if you try again on another PR and it doesn't start the CI.

[targos]

In #34796, the second time I added request-ci, CI was started correctly but the bot didn't comment on the PR with the jenkins link.

[mmarchini]

That's a Jenkins wide issue unfortunately (not related to the Action as far as we know): nodejs/build#2413

[ronag]

This is very cool. Though I just wanted to make sure we are aware that this basically bypasses the "certify safe" checkbox.