build.yml

name: Build & Test Next.js site

on:
  pull_request:
    types: [opened, synchronize, reopened]

  push:
    branches: [master]

  workflow_dispatch:

permissions:
  contents: read
  pages: write
  id-token: write

concurrency:
  group: "pages"
  cancel-in-progress: false

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repo
        uses: actions/checkout@v4

      - name: Detect package manager
        id: pm
        run: |
          # Prefer pnpm, then yarn, otherwise npm
          if [ -f pnpm-lock.yaml ]; then
            echo "manager=pnpm" >> $GITHUB_OUTPUT
            echo "install=install --frozen-lockfile" >> $GITHUB_OUTPUT
            echo "runner=pnpm run" >> $GITHUB_OUTPUT
          elif [ -f yarn.lock ]; then
            echo "manager=yarn" >> $GITHUB_OUTPUT
            echo "install=install --immutable" >> $GITHUB_OUTPUT
            echo "runner=yarn" >> $GITHUB_OUTPUT
          else
            echo "manager=npm" >> $GITHUB_OUTPUT
            echo "install=ci" >> $GITHUB_OUTPUT
            echo "runner=npm run" >> $GITHUB_OUTPUT
          fi

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: 20

      # Corepack must be enabled *after* setup-node so the Yarn 4 shim attaches
      # to the Node that runs the build. (setup-node's built-in `cache: yarn`
      # is intentionally omitted: its `yarn cache dir` probe runs the runner's
      # Yarn 1, which aborts on the `packageManager: yarn@4` pin.)
      - name: Enable Corepack
        run: corepack enable

      - name: Install Foomatic system packages
        run: |
          sudo apt-get update
          sudo apt-get install -y \
            foomatic-db-engine \
            foomatic-db-compressed-ppds \
            cups-filters \
            ghostscript \
            bsdmainutils \
            libxml2-utils \
            xsltproc \
            python3 \
            python3-pip

      - name: Install dependencies
        run: ${{ steps.pm.outputs.manager }} ${{ steps.pm.outputs.install }}

      - name: Run linter
        run: ${{ steps.pm.outputs.runner }} lint

      - name: Build Next.js
        run: ${{ steps.pm.outputs.runner }} build