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BFE Engineering 249c311953 ci: self-hosted code quality grade and badge
A new quality job runs the linter battery (clippy, cppcheck, shellcheck,
ruff, lizard, jscpd, cargo-audit per crate, scc for the LOC denominator)
and feeds tools/quality/score.py: findings convert to SQALE remediation
minutes, debt ratio grades A-F on SonarQube's published grid, and a
separate worst-of security axis can only drag the overall grade down.
The job uploads the full quality.json breakdown and fails when the
security grade is worse than C.

The badges job now renders all four SVGs in-runner with anybadge
(shields hex palette); the previous img.shields.io curls were the one
external-service dependency left in the pipeline. quality.svg is seeded
at the current locally-computed grade (A, debt ratio 0.42%).

Also fixes the two ruff findings the battery surfaced in flowgen.py.
2026-08-31 16:18:38 -06:00

37 lines
2.4 KiB
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# CI/CD
`.github/workflows/ci.yml`: every job runs on GitHub-hosted `ubuntu-latest`.
No self-hosted runner is (or may be) reachable from this repo's workflows:
on a public repo, a fork PR that gets one approved run could otherwise
execute code on private infrastructure (ADR-0007).
## Jobs
| Job | Runner | What it does |
|---|---|---|
| `test` | ubuntu-latest | `cargo test` (sim + config-lint + qemu/rs485-bridge) + `cargo-llvm-cov` line coverage on `sim`; outputs `passed`/`coverage`. |
| `mcdc` | ubuntu-latest | 100% MC/DC enforced on every `drivers/*/test` (gcc-14 `-fcondition-coverage`). |
| `bench` | ubuntu-latest | Smoke-runs the sim + rs485-bridge micro-benchmarks; emits ns/op trend JSON. |
| `patches-apply` | ubuntu-latest | Fetches pristine linux-6.18.46 (cached, sha256-verified) and applies `patches/*` in order. |
| `qemu-tools` | ubuntu-latest | shellcheck on `qemu/**.sh`; builds the initramfs (pinned busybox) and the A/B disk image. |
| `quality` | ubuntu-latest | Codacy-style grade computed in-pipeline: clippy, cppcheck, shellcheck, ruff, lizard, jscpd, cargo-audit feed `tools/quality/score.py` (SQALE debt ratio + a separate worst-of security axis; SonarQube's published thresholds). Uploads `quality.json`; fails if the security grade is worse than C. |
| `kernel-build` | ubuntu-latest, **dispatch-only** | apt-installs the cross toolchain + qemu, `build/build-kernel.sh` -> `zImage` + `rv1106-warden.dtb`, QEMU `-M virt` boot smoke (fail-closed), artifact upload (best-effort). Trigger: `gh workflow run ci.yml`. |
| `prune-artifacts` | ubuntu-latest, dispatch-only | Deletes `kernel-rv1106` artifacts beyond the newest 3. |
| `badges` | ubuntu-latest | Renders loc/tests/coverage shields on push to `main` (`[skip ci]` + `paths-ignore` loop guard). |
## Runner History
`kernel-build` originally ran on a repo-scoped self-hosted runner (ADR-0004)
because hosted minutes were metered on the private repo. Going public made
hosted minutes free and a self-hosted registration a fork-PR liability, so
ADR-0007 retired it. That runner's site records live in the private
deployment log, not here.
## Badges
SVGs are rendered in-runner with anybadge and committed by the `badges`
job: no external badge or assessment service at render or view time. The
quality letter comes from the `quality` job; `tools/quality/score.py`
documents the scoring model and thresholds. The GitHub-native `ci.yml`
status badge works live regardless.