harmont-cli/.github/workflows/examples.yml at main · harmont-dev/harmont-cli · GitHub

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name: examples

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

permissions:
  contents: read

# Cancel superseded runs on rapid pushes — 17-leg matrix is expensive.
concurrency:
  group: examples-${{ github.ref }}
  cancel-in-progress: true

env:
  CARGO_TERM_COLOR: always

jobs:
  # Fail fast if the matrix list has drifted from examples/. Cheaper than
  # waiting for 17 legs to finish and finding out a new example was added
  # but never wired into CI.
  validate-matrix:
    runs-on: ubuntu-latest
    timeout-minutes: 2
    steps:
      - uses: actions/checkout@v4
      - name: Diff examples/ against matrix slugs
        run: |
          on_disk="$(ls examples | grep -v '^README\.md$' | sort)"
          in_matrix="$(awk '/^        example:$/{flag=1;next}/^    steps:$/{flag=0}flag' .github/workflows/examples.yml \
            | sed -n 's/^\s*- //p' | sort)"
          if [ "$on_disk" != "$in_matrix" ]; then
            echo "matrix list out of sync with examples/ directory" >&2
            diff <(printf '%s\n' "$on_disk") <(printf '%s\n' "$in_matrix") >&2 || true
            exit 1
          fi

  # Build `hm` once and share the binary across every matrix leg.
  # Each leg only needs Docker + the binary; making them re-compile
  # the whole workspace 17× was the long tent-pole.
  build-hm:
    needs: validate-matrix
    runs-on: ubuntu-latest
    # Debug build only — examples just need a working `hm` binary.
    timeout-minutes: 30
    steps:
      - uses: actions/checkout@v4

      - uses: dtolnay/rust-toolchain@stable

      - uses: Swatinem/rust-cache@v2
        with:
          shared-key: examples-hm

      - name: Install esbuild (for harmont-ts bundle)
        working-directory: dsls/harmont-ts
        run: npm ci

      - name: Build hm
        run: cargo build -p harmont-cli

      - uses: actions/upload-artifact@v4
        with:
          name: hm-bin
          path: target/debug/hm
          retention-days: 1
          if-no-files-found: error

  run-example:
    needs: build-hm
    name: ${{ matrix.example }}
    runs-on: ubuntu-latest
    timeout-minutes: 20
    strategy:
      fail-fast: false
      matrix:
        example:
          - c
          - cpp
          - csharp
          - go
          - java
          - kotlin
          - nextjs
          - ocaml
          - perl
          - python-uv
          - react
          - ruby
          - rust
          - typescript
          - zig-js
          - zig
    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-node@v4
        with:
          node-version: "23"

      - name: Download hm binary
        uses: actions/download-artifact@v4
        with:
          name: hm-bin
          path: bin

      - name: Mark hm executable
        run: chmod +x bin/hm

      - name: Run example via hm run
        working-directory: examples/${{ matrix.example }}
        env:
          HM_NONINTERACTIVE: '1'
        run: ${{ github.workspace }}/bin/hm run ci