ci: auto-delete PR head branch on close#105
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GitHub's repo-level "automatically delete head branches" is off, so merged branches linger (e.g. jeanextreme002/* and ci/* from recent PRs). This workflow deletes the head ref when a PR from this repo is merged, skipping protected branches (main, gh-pages) and PRs from forks.
Drop the merged==true guard so abandoned PRs also get their head branch cleaned up. Rename the workflow file/name to match the broader scope.
JeanExtreme002
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Summary
.github/workflows/delete-pr-branch.ymlto delete a PR's head branch automatically whenever the PR is closed (merged or abandoned).main,gh-pages) and PRs from forks (where we can't delete refs anyway).Motivation: repo currently has
deleteBranchOnMerge: false, so merged branches stick around (e.g.jeanextreme002/*andci/*from recent PRs are still on the remote). This also cleans up branches from PRs that get closed without merging, which the repo-level setting wouldn't cover.Alternative — and complementary — fix: flip on Settings → General → Automatically delete head branches in the repo UI. The workflow still adds value because (a) it also handles closed-without-merge and (b) it keeps cleanup behavior in version control.
Test plan
ci/delete-branch-on-mergehead branch is deleted automatically by the new workflow run.mainfrom a fork is a no-op (guarded by thehead.repo.full_name == github.repositorycheck).