build-and-publish.yml

name: Build and Publish to GitHub Packages

on:
    push:

jobs:
    build_and_publish:
        runs-on: ubuntu-latest
        permissions:
            contents: write
            packages: write

        steps:
            - name: Checkout code
              uses: actions/checkout@v2
              with:
                  fetch-depth: 0

            - name: Setup Node.js
              uses: actions/setup-node@v2
              with:
                  node-version: '18'

            - name: Cache npm dependencies
              uses: actions/cache@v2
              with:
                  path: ~/.npm # This caches the npm cache, not node_modules directly
                  key: ${{ runner.os }}-npm-${{ hashFiles('**/package-lock.json') }}
                  restore-keys: |
                      ${{ runner.os }}-npm-

            - name: Install dependencies
              run: npm ci

            - name: Run Jest tests
              run: npm test

            - name: Just build don't ship
              if: github.ref != 'refs/heads/main'
              run: |
                  npm run build

            - name: Set next version
              run: |
                  next_version=$(git for-each-ref --sort=-creatordate --format '%(refname:short)' refs/tags/v* | grep -E '^v[0-9]+\.[0-9]+\.[0-9]+$' | head -n 1 | awk -F '.' '{print $1 "." $2 "." $3+1}')
                  next_version=${next_version#v}
                  echo "next_version=$next_version"
                  echo "next_version=$next_version" >> $GITHUB_ENV

            - name: Bump version and create new tag
              if: github.ref == 'refs/heads/main'
              run: |
                  echo '//npm.pkg.github.com/:_authToken=${NPM_TOKEN}' >> .npmrc
                  git config user.name "GitHub Actions"
                  git config user.email "<actions@github.com>"

                  # Update package.json with the new version
                  jq ".version = \"${{ env.next_version }}\"" package.json > tmp.json && mv tmp.json package.json

                  git tag -a v${{ env.next_version }} -m "Release v${{ env.next_version }}"
                  npm run ship
                  git push origin v${{ env.next_version }}
              env:
                  NPM_TOKEN: ${{ secrets.GITHUB_TOKEN }}