Auto-sync vendored libkrun.h on Renovate bumps#111
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Add a GitHub Action that triggers when versions.env changes in a PR. If LIBKRUN_VERSION changed (not LIBKRUNFW-only), fetches the header from libkrun/libkrun at the new version, verifies it compiles, and commits it back to the PR branch — so a Renovate libkrun bump PR includes the vendored header update automatically. Removes the need for a manual task update-libkrun-header follow-up PR after every libkrun version bump.
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Problem
The automation we added in #106 left a manual gap: when Renovate bumps
LIBKRUN_VERSION, the vendoredkrun/libkrun.hdoesn't update automatically. We had to runtask update-libkrun-headerand open a follow-up PR (#110) — exactly the kind of manual step the automation was supposed to eliminate.Fix
Add
.github/workflows/sync-header.yaml— a GitHub Action that triggers whenversions.envchanges in a PR:LIBKRUN_VERSIONactually changed (diffs against the base SHA). Skips libkrunfw-only bumps, which don't affect the header.include/libkrun.hfromlibkrun/libkrun@<new version>, prepends the SPDX/vendored comment block.gcc -fsyntax-only) before committing.github-actions[bot].Renovate creates in-repo branches (same owner/repo, not forks), so
GITHUB_TOKENcan push directly to the PR head.Result
A Renovate libkrun bump PR now includes both the version pin and the vendored header in one PR — no follow-up needed. Scoped to
renovate[bot]actor +LIBKRUN_VERSIONchanges only, so it doesn't fire on unrelated PRs.