gatsby-build.yml

# Workflow for building a Gatsby site
#
# To get started with Gatsby see: https://www.gatsbyjs.com/docs/quick-start/
#
name: Build Gatsby site

on:
  # Runs on pull requests targeting the default branch
  pull_request:
    branches: ["main"]
  # Runs on commits to the default branch
  push:
    branches: ["main"]

# Default to bash
defaults:
  run:
    shell: bash

jobs:
  # Build job
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Detect package manager
        id: detect-package-manager
        run: |
          if [ -f "${{ github.workspace }}/yarn.lock" ]; then
            echo "manager=yarn" >> $GITHUB_OUTPUT
            echo "command=install" >> $GITHUB_OUTPUT
            exit 0
          elif [ -f "${{ github.workspace }}/package.json" ]; then
            echo "manager=npm" >> $GITHUB_OUTPUT
            echo "command=ci" >> $GITHUB_OUTPUT
            exit 0
          else
            echo "Unable to determine package manager"
            exit 1
          fi
      - name: Setup Node
        uses: actions/setup-node@v4
        with:
          node-version: "20"
          cache: ${{ steps.detect-package-manager.outputs.manager }}
      - name: Install dependencies
        run: ${{ steps.detect-package-manager.outputs.manager }} ${{ steps.detect-package-manager.outputs.command }}
      - name: Build with Gatsby
        env:
          PREFIX_PATHS: 'true'
        run: ${{ steps.detect-package-manager.outputs.manager }} run build