create-release.yml

name: Create Release

on:
  push:
    branches:
      - main
    paths:
      - 'package.json'

jobs:
  create-release:
    permissions:
      contents: write
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v2
        with:
          fetch-depth: 2

      - name: Get current version from package.json
        id: current-version
        uses: martinbeentjes/npm-get-version-action@v1.3.1

      - name: Get previous version from package.json
        id: previous-version
        run: |
          git checkout HEAD~1
          echo "::set-output name=value::$(npm pkg get version | tr -d '"')"
          git checkout -

      - name: Check if version has changed
        id: version-changed
        run: |
          if [ "${{ steps.current-version.outputs.current-version }}" != "${{ steps.previous-version.outputs.value }}" ]; then
            echo "::set-output name=changed::true"
          else
            echo "::set-output name=changed::false"
          fi

      - name: Extract major version
        if: steps.version-changed.outputs.changed == 'true'
        id: major-version
        run: echo "::set-output name=value::$(echo ${{ steps.current-version.outputs.current-version}} | cut -d. -f1)"

      - name: Create Release
        if: steps.version-changed.outputs.changed == 'true'
        id: create_release
        uses: actions/create-release@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          tag_name: v${{ steps.current-version.outputs.current-version}}
          release_name: Release v${{ steps.current-version.outputs.current-version}}
          draft: false
          prerelease: false

      - name: Create or Update Major Version Tag
        if: steps.version-changed.outputs.changed == 'true'
        uses: actions/github-script@v6
        with:
          github-token: ${{secrets.GITHUB_TOKEN}}
          script: |
            try {
              await github.rest.git.createRef({
                owner: context.repo.owner,
                repo: context.repo.repo,
                ref: 'refs/tags/v${{ steps.major-version.outputs.value }}',
                sha: context.sha
              });
            } catch (error) {
              if (error.status === 422) {
                await github.rest.git.updateRef({
                  owner: context.repo.owner,
                  repo: context.repo.repo,
                  ref: 'tags/v${{ steps.major-version.outputs.value }}',
                  sha: context.sha,
                  force: true
                });
              } else {
                throw error;
              }
            }