labwired-core/.github/workflows/core-coverage-weekly.yml at main · layer1labs/labwired-core · GitHub

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name: Core Coverage Gate

on:
  schedule:
    - cron: "20 2 * * 0"
  workflow_dispatch:

concurrency:
  group: core-coverage-weekly
  cancel-in-progress: true

jobs:
  coverage:
    runs-on: ubuntu-latest
    timeout-minutes: 30
    steps:
      - uses: actions/checkout@v4

      - name: Install Rust
        uses: dtolnay/rust-toolchain@1.95.0

      - name: Cache dependencies
        uses: Swatinem/rust-cache@v2
        with:
          shared-key: core-coverage
          workspaces: |
            . -> target

      - name: Cache cargo-llvm-cov
        id: cache-llvm-cov
        uses: actions/cache@v4
        with:
          path: ~/.cargo/bin/cargo-llvm-cov
          key: ${{ runner.os }}-cargo-llvm-cov-v0.6.21

      - name: Install coverage tooling
        run: |
          rustup component add llvm-tools-preview
          rustup target add thumbv6m-none-eabi
          rustup target add thumbv7m-none-eabi
          rustup target add thumbv7em-none-eabi
          if ! command -v cargo-llvm-cov >/dev/null 2>&1; then
            cargo install cargo-llvm-cov --locked --version 0.6.21
          fi

      - name: Build firmware fixture for coverage tests
        run: |
          cargo build -p demo-blinky --release --target thumbv7m-none-eabi
          cargo build -p firmware-h563-io-demo --release --target thumbv7m-none-eabi
          cargo build -p firmware-f401-demo --release --target thumbv7em-none-eabi
          RUSTFLAGS="-C link-arg=-Tlink.x" cargo build -p firmware-rp2040-pio-onboarding --release --target thumbv6m-none-eabi

      - name: Run coverage
        run: |
          mkdir -p out/coverage
          cargo llvm-cov -p labwired-core -p labwired-cli --summary-only --json > out/coverage/llvm-cov.json

      - name: Enforce minimum line coverage
        run: |
          python3 - <<'PY'
          import json
          import pathlib
          import sys

          # Weekly floor only (not a PR gate). Keep conservative until main baseline
          # is measured; PR signal is integrity + onboarding + coverage-matrix + arduino.
          threshold = 55.0
          p = pathlib.Path("out/coverage/llvm-cov.json")
          data = json.loads(p.read_text())
          nodes = data.get("data", [])
          if not nodes:
              print("No coverage data found", file=sys.stderr)
              sys.exit(1)
          totals = nodes[0].get("totals", {})
          lines = totals.get("lines", {})
          pct = float(lines.get("percent", 0.0))
          print(f"Line coverage: {pct:.2f}% (threshold: {threshold:.2f}%)")
          if pct < threshold:
              sys.exit(1)
          pathlib.Path("out/coverage/summary.txt").write_text(
              f"line_coverage_percent={pct:.2f}\nthreshold={threshold:.2f}\n"
          )
          PY

      - name: Upload coverage artifacts
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: core-coverage
          path: out/coverage/