release.yml

name: Create Tag and Release on Version Change

on:
  push:
    branches:
      - master

permissions: write-all

jobs:
  create_tag:
    name: Create Git Tag
    runs-on: ubuntu-latest
    
    steps:
    - name: Checkout code
      uses: actions/checkout@v3
      with:
          fetch-depth: 0

    - name: Check for version changes
      run: |
        # Fetch all tags from the remote repository
        git fetch --tags
        
        # Get the previous version from the last release tag
        export previous_version=$(git describe --tags --abbrev=0)
        
        # Get the current version from pubspec.yaml
        export current_version=$(cat pubspec.yaml | grep 'version:' | awk '{print $2}')
        
        if [[ "$previous_version" != "v$current_version" ]]; then
          echo "Version has changed from $previous_version to v$current_version."
        else
          echo "Version has not changed."
          exit 1
        fi

    - name: Push Git Tag
      run: |
        # Git login
        git config --global user.name "$(git log -n 1 --pretty=format:%an)"
        git config --global user.email "$(git log -n 1 --pretty=format:%ae)"

        # Push a Git tag with the new version
        export current_version=$(cat pubspec.yaml | grep 'version:' | awk '{print $2}')
        git tag -a "v$current_version" -m "Version $current_version"
        git push origin "v$current_version"
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

  create-github-release:
    name: Create GitHub Release
    runs-on: ubuntu-latest
    needs: create_tag
    permissions:
      contents: write
    steps:
      - name: Checkout code
        uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - name: Create Release
        run: gh release create "$(git describe --tags --abbrev=0)" --generate-notes
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}