ci.yml

name: CI

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

permissions:
  contents: read

jobs:

  shell-lint:
    runs-on: ubuntu-24.04
    container:
      image: koalaman/shellcheck-alpine:v0.9.0
    steps:
      - run: apk add git
      - run: apk add shfmt --repository=http://dl-3.alpinelinux.org/alpine/edge/community
      - uses: actions/checkout@v4
      - name: shellcheck
        run: shfmt -f . | grep -v ^test/ | xargs shellcheck
      - name: shfmt
        run: shfmt -f . | grep -v ^test/ | grep -v '_shpec.sh$' | xargs shfmt -d

  rust-lint:
    runs-on: ubuntu-24.04
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Update Rust toolchain
        run: rustup update
      - name: Rust Cache
        uses: Swatinem/rust-cache@v2.7.5
      - name: Clippy
        run: cargo clippy --all-targets --locked -- --deny warnings
      - name: rustfmt
        run: cargo fmt -- --check

  rust-unit-test:
    runs-on: ubuntu-24.04
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Update Rust toolchain
        run: rustup update
      - name: Rust Cache
        uses: Swatinem/rust-cache@v2.7.5
      - name: Run unit tests
        run: cargo test --locked

  find-libcnb-buildpacks:
    name: Find libcnb buildpacks
    runs-on: ubuntu-24.04
    outputs:
      libcnb-buildpacks: ${{ steps.find-buildpack-dirs.outputs.buildpacks }}
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          submodules: true
      - id: find-buildpack-dirs
        name: Find libcnb buildpack directories
        run: |
          echo "buildpacks=$( \
            find . -type d -execdir test -e "{}/buildpack.toml" -a -e "{}/Cargo.toml" \; -print \
            | sort \
            | uniq \
            | jq -nRc '[inputs] 
                | map({ dir: ., name: split("/") | last | split("nodejs-") | last } 
                | [
                  . + { builder_tag: 20, arch: "amd64" },
                  . + { builder_tag: 22, arch: "amd64" },
                  . + { builder_tag: 24, arch: "amd64" },
                  . + { builder_tag: 24, arch: "arm64" } 
                ]) 
                | flatten' \
          )" >> $GITHUB_OUTPUT

  rust-integration-test:
    name: ${{ matrix.name }} (${{ matrix.builder_tag }}, ${{ matrix.arch }})
    runs-on: ${{ matrix.arch == 'arm64' && 'pub-hk-ubuntu-24.04-arm-medium' || 'ubuntu-24.04' }}
    env:
      INTEGRATION_TEST_CNB_BUILDER: heroku/builder:${{ matrix.builder_tag }}
    needs: find-libcnb-buildpacks
    strategy:
      fail-fast: false
      matrix:
        include: ${{ fromJson(needs.find-libcnb-buildpacks.outputs.libcnb-buildpacks) }}
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Install musl-tools
        run: sudo apt-get install musl-tools -y --no-install-recommends
      - name: Update Rust toolchain
        run: rustup update
      - name: Install Rust linux-musl target
        run: rustup target add ${{ matrix.arch == 'arm64' && 'aarch64-unknown-linux-musl' || 'x86_64-unknown-linux-musl' }}
      - name: Rust Cache
        uses: Swatinem/rust-cache@v2.7.5
      - name: Install Pack CLI
        uses: buildpacks/github-actions/setup-pack@v5.8.3
      - name: Pull builder image
        run: docker pull ${{ env.INTEGRATION_TEST_CNB_BUILDER }}
      - name: Pull run image
        run: |
          RUN_IMAGE=$(
            docker inspect --format='{{index .Config.Labels "io.buildpacks.builder.metadata"}}' '${{ env.INTEGRATION_TEST_CNB_BUILDER }}' \
            | jq --exit-status --raw-output '.stack.runImage.image'
          )
          docker pull "${RUN_IMAGE}"
      - name: Run integration tests
        working-directory: ${{ matrix.dir }}
        run: cargo test --locked -- --ignored --test-threads 16

  shpec:
    runs-on: ubuntu-24.04
    container:
      image: heroku/heroku:${{ matrix.stack-version }}-build
    strategy:
      matrix:
        stack-version:
          - '20'
          - '22'
        buildpack-dir:
          - buildpacks/npm
    defaults:
      run:
        shell: bash
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Install shpec
        run: sh -c "`curl -L https://raw.githubusercontent.com/rylnd/shpec/master/install.sh`"
      - name: Shpec unit tests on heroku-${{ matrix.stack-version }}
        run: shpec ${{ matrix.buildpack-dir }}/shpec/*_shpec.sh

  metrics-test:
    strategy:
      fail-fast: false
      matrix:
        # check the minimum node version supported by the metrics script and the latest node version
        # (assumes the versions between have backwards-compatible APIs)
        version: [14.10.0, latest]
    name: Test Metrics (${{ matrix.version }})
    runs-on: ubuntu-24.04
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@v4
        with:
          node-version: ${{ matrix.version }}
      - run: npx mocha@10.x buildpacks/nodejs-engine/node_runtime_metrics/test/metrics.spec.cjs