name: build

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

jobs:
  build:
    runs-on: ubuntu-latest
    permissions:
      contents: write
    env:
      NIX_PATH: nixpkgs=channel:nixpkgs-unstable
    steps:

    - name: Checkout
      uses: actions/checkout@v3

    - name: Setup Node.js
      uses: actions/setup-node@v3.3.0
      with:
        node-version: 16.x

    - name: Yarn cache
      uses: actions/cache@v3
      with:
        path: .yarn/cache
        key: yarn-${{ hashFiles('yarn.lock') }}
        restore-keys: yarn-

    - name: Yarn install
      run: yarn install --immutable

    - name: TypeScript
      run: yarn check

    - name: Build
      run: yarn build

    - name: Update dist
      if: github.repository_owner == 'stephank' && github.ref == 'refs/heads/main'
      run: |
        if [[ "$(git status --porcelain)" != "" ]]; then
          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
          git config user.name "github-actions[bot]"
          git commit -m 'Update dist' dist/yarn-plugin-nixify.js
          git push
        fi

    - name: Install plugin
      run: yarn plugin import ./dist/yarn-plugin-nixify.js

    - name: Test without Nix
      run: yarn

    - name: Install Nix
      uses: nixbuild/nix-quick-install-action@v16

    - name: Setup Cachix
      if: github.event_name == 'push' && github.repository_owner == 'stephank'
      uses: cachix/cachix-action@v10
      with:
        name: stephank
        signingKey: '${{ secrets.CACHIX_SIGNING_KEY }}'

    - name: Test with Nix
      run: yarn

    - name: Test nix-build
      run: nix-build

    # TODO: Check there really is a separate derivation,
    # and that Yarn actually reuses the build.
    - name: Test isolated builds
      run: |
        # Matches example in  ISOLATED_BUILDS.md
        echo 'isolatedNixBuilds: ["sqlite3"]' >> .yarnrc.yml
        cat > default.nix << EOF
        { pkgs ? import <nixpkgs> { } }:

        pkgs.callPackage ./yarn-project.nix { } {
          src = ./.;
          overrideSqlite3Attrs = old: {
            npm_config_sqlite = "/";  # Don't accidentally use the wrong sqlite.
            buildInputs = old.buildInputs ++ (with pkgs; [ python3 sqlite ]);
          };
        }
        EOF

        yarn add sqlite3
        nix-build