Add backport publish command - #3415
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Pushes the branches apply built and opens one pull request per affected branch, so a fix that lands on seven branches is one command rather than seven trips through the GitHub UI. apply --open-pr offers it as soon as the cherry-picks are done, so a local session stays analyze then apply A branch is publishable once its cherry-pick is finished, which is read from git rather than from anything apply recorded. Resolving a conflict by hand is therefore enough to make the next publish pick that branch up, with no need to run apply again. Whether it carries a pick of its own is measured against the same release ref apply cut it from, so a fork that is behind on the release branches cannot make an empty branch look ready Branches are pushed to a fork and the pull requests are opened against aws/aws-lc. Pushing to aws/aws-lc is refused outright, so a stray --remote cannot put half-reviewed work on the real repository. A branch that already has an open pull request is left alone, so re-running is safe Everything that talks to GitHub lives in util/github.py. The previous version of this tool grew one PR opener in publish and a second in resolve, and they drifted apart Nothing is ever a draft and nothing is auto-merged
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Issues:
Addresses
P425131803Description of changes:
After
applyyou're left with one local branch per affected branch, and opening a pull request for each of them is still manual. For a fix that hits seven branches that's seven trips through the GitHub UI.This pull request adds
publish, which pushes those branches and opens one pull request each, in one command.Most of the time you never type it.
apply --open-proffers to run it as soon as the cherry-picks are done, so a local session staysanalyzethenapply.Stacked on #3414. The base here is
backport-stack/apply, a scaffolding branch holding the commits below it, so this diff is only the 9 files this change touches. I will retarget it tomainas the stack lands. Please don't merge it into the scaffolding branch.Call-outs:
Branches go to your fork, pull requests are opened against
aws/aws-lc. Pushing branches toaws/aws-lcis refused, so a mistyped--remotecan't put half-reviewed work on the real repository.Whether a branch is ready is read from git, not from anything
applyrecorded. So resolving a conflict by hand is enough for the nextpublishto pick that branch up, with no need to runapplyagain. That's the seamresolveuses later.A branch that already has an open pull request is left alone, so re-running is safe.
Nothing is ever a draft and nothing is auto-merged.
Everything that talks to GitHub lives in
util/github.py. The previous version of this tool grew one PR opener inpublishand a second inresolve, and they drifted apart.ghis a new prerequisite, for this command only.Testing:
Unit tests - 26 new, 167 total:
They cover reading a remote URL, the refusal to push to
aws/aws-lc, how a branch is named to GitHub across repos versus within one, and each outcome a branch can end in.Real fix - verified
--remote upstreamis refused before anything is printed or pushed,--dry-runtouches nothing, and that resolving one conflict by hand moved that branch from unfinished to publishable without re-runningapply.By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license and the ISC license.