commit.yml

name: Commit Version
on:
  push:
    branches:
      - master

jobs:
  version_tag:
    name: Commit Version
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Generate next version number
        uses: actions/github-script@v6
        id: version
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          result-encoding: string
          script: |
            const fs = require('fs');
            const version_from_file = JSON.parse(fs.readFileSync('package.json', 'utf8')).version;
            const base_version = version_from_file
              .split('.')
              .slice(0, 2)
              .join('.');
            const previous_refs = await github.rest.git.listMatchingRefs({
              owner: context.repo.owner,
              repo: context.repo.repo,
              ref: 'tags/v' + base_version + '.'
            });
            // build_number could also be github.run_attempt
            const build_number = previous_refs.data.length;
            const version = `${base_version}.${build_number}`;
            console.log('Version: ', version);
            return version;

      - name: Create tag
        uses: actions/github-script@v6
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            github.rest.git.createRef({
              owner: context.repo.owner,
              repo: context.repo.repo,
              ref: 'refs/tags/v${{ steps.version.outputs.result }}',
              sha: context.sha
            })