ci.yml

name: CI

on:
  push:
    # Avoid duplicate builds on PRs.
    branches:
      - main
  pull_request:

permissions:
  contents: read

env:
  CARGO_TERM_COLOR: always

jobs:
  lint:
    runs-on: ubuntu-22.04
    steps:
      - name: Checkout
        uses: actions/checkout@v3
      - name: Update Rust toolchain
        run: rustup update
      - name: Rust Cache
        uses: Swatinem/rust-cache@v2.5.1
      - name: Clippy
        run: cargo clippy --all-targets --locked -- --deny warnings
      - name: rustfmt
        run: cargo fmt -- --check

  unit-test:
    runs-on: ubuntu-22.04
    steps:
      - name: Checkout
        uses: actions/checkout@v3
      - name: Update Rust toolchain
        run: rustup update
      - name: Rust Cache
        uses: Swatinem/rust-cache@v2.5.1
      - name: Run unit tests
        run: cargo test --locked

  integration-test:
    runs-on: ubuntu-22.04
    steps:
      - name: Checkout
        uses: actions/checkout@v3
      - name: Install musl-tools
        run: sudo apt-get install musl-tools --no-install-recommends
      - name: Update Rust toolchain
        run: rustup update
      - name: Install Rust linux-musl target
        run: rustup target add x86_64-unknown-linux-musl
      - name: Rust Cache
        uses: Swatinem/rust-cache@v2.5.1
      - name: Install Pack CLI
        uses: buildpacks/github-actions/setup-pack@v5.2.0
      - name: Run integration tests
        # Runs only tests annotated with the `ignore` attribute (which in this repo, are the integration tests).
        run: cargo test --locked -- --ignored

  pack-getting-started-output:
    runs-on: ubuntu-22.04
    steps:
      - name: Checkout
        uses: actions/checkout@v3
      - name: Install musl-tools
        run: sudo apt-get install musl-tools --no-install-recommends
      - name: Update Rust toolchain
        run: rustup update
      - name: Install Rust linux-musl target
        run: rustup target add x86_64-unknown-linux-musl
      - name: Rust Cache
        uses: Swatinem/rust-cache@v2.5.1
      - name: Install Pack CLI
        uses: buildpacks/github-actions/setup-pack@v5.2.0
      - name: Pull builder image
        run: |
          docker pull "heroku/builder:22"
          docker pull "heroku/heroku:22-cnb"
      - name: Clone ruby getting started guide
        run: mkdir tmp; git clone https://github.com/heroku/ruby-getting-started tmp/ruby-getting-started
      - name: Install libcnb-cargo for `cargo libcnb package` command
        run: cargo install libcnb-cargo
      - name: Compile ruby buildpack
        run: cargo libcnb package
      - name: Getting started guide output
        run: | # Use `script -e -c` to pretend to be a TTY for pack terminal color support
          script -e -c "pack build my-image --builder heroku/builder:22 --buildpack heroku/nodejs-engine --buildpack target/buildpack/debug/heroku_ruby --path tmp/ruby-getting-started --pull-policy never"