ci: auto-merge Dependabot patch and minor updates#64
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Add a dependabot-automerge workflow (palier A of the Dependabot automation policy). For pull requests raised by Dependabot it reads the update type via dependabot/fetch-metadata and, for semver patch and minor updates, enables GitHub auto-merge so they merge once required checks pass. Major updates fall through and stay open for human review. The workflow only enables auto-merge; the branch's required status checks remain the actual safety gate, so a branch-protection rule on main marking the CI checks as required is a prerequisite for safe behaviour. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01AbXi2ZEaUFeFWodNxdY6Zk
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Summary
Add the auto-merge half (palier A) of the Dependabot automation policy: Dependabot patch/minor updates get GitHub auto-merge enabled and merge on their own once required checks pass; major updates stay open for human review.
Type of change
Changes
.github/workflows/dependabot-automerge.yml:pull_requesttomain, only when the actor isdependabot[bot].dependabot/fetch-metadata@v2.semver-patchandsemver-minor, enables auto-merge (gh pr merge --auto --merge, matching the repo's merge-commit style).semver-majorfalls through — no auto-merge, left for human review.contents: read; the job widens only tocontents: write+pull-requests: writeto enable auto-merge.Testing
dotnet build FirstClassErrors.sln— not applicable (no source or build change).dotnet test FirstClassErrors.sln— not run.FirstClassErrors.Analyzers.UnitTests) — not run.dependabot-automerge.ymlYAML parsed and validated (trigger, actor guard, update-type condition, permissions). Real behaviour is exercised by GitHub when the next Dependabot PR is opened.Documentation
Related issues
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