ci: auto-label PRs by changed paths - #67
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The bug form labels issues `platform:*`, but PRs had no auto-labelling. Add actions/labeler (config `.github/labeler.yml`) on `pull_request_target` to tag a PR by the files it touches: frontend / backend / platform:linux|windows|android / ci / documentation — the same taxonomy as the PR template's "Affected layer". Reuses the existing platform:* labels; adds frontend/backend/ci.
This was referenced Jun 21, 2026
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Summary
The bug form already labels issues
platform:*from its Platform dropdown, but PRs had no auto-labelling. Addactions/labeler(config.github/labeler.yml) onpull_request_targetto tag a PR by the files it touches, using the same taxonomy as the PR template's "Affected layer":frontend—frontend/**,package.json,bun.lock,biome.jsonbackend—crates/**,src-tauri/**,Cargo.*platform:linux/platform:windows— the OS-specificsrc-tauri/src/desktop/*dirsplatform:android—module/**,crates/kasumi-daemon/**ci—.github/**documentation—**/*.mdReuses the existing
platform:*labels; addsfrontend/backend/ci(created on the repo).Affected layer
frontend/module/scripts/.github/Verification
actionlint .github/workflows/label-pr.ymlcleanactions/labeler@v5pinned by SHA (8558fd74…), matching the repo's SHA-pinning conventionfrontend/backend/cilabels created on the repoNote:
pull_request_targetruns the workflow from the base branch, so this PR won't self-label — it takes effect for PRs opened after merge.Notes for reviewers
pull_request_targetis required for write scope on fork PRs; safe here becauselabeleronly reads the diff's file list + the config from the base branch — it never checks out or runs PR code.Open follow-up (asked separately): issues can't get the
frontend/backend/ciarea labels — the bug form only offers a Platform dropdown. Symmetry would need an "Area" dropdown on the form (or leaving area to maintainer triage). Not in this PR.