tag-main-branch.yml

name: Tag Main Branch

on:
  push:
    branches:
      - test-tag-branch
  workflow_dispatch:

permissions:
  contents: write

jobs:
  tag:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        
      - name: Set up Git
        run: |
          git config --global user.name 'GitHub Actions'
          git config --global user.email 'actions@github.com'

      - name: Fetch all tags
        run: |
          git fetch --tags
  
      - name: Get latest tag
        id: get_latest_tag
        run: |
          # Get the latest tag
          latest_tag=$(git describe --tags `git rev-list --tags --max-count=1`)
          echo "Latest tag: $latest_tag"
          echo "latest_tag=$latest_tag" >> $GITHUB_ENV

      - name: Determine next tag version
        id: get_next_version
        run: |
          latest_tag=$env.latest_tag
          if [[ $latest_tag =~ ^v([0-9]+)\.([0-9]+)\.([0-9]+)$ ]]; then
            major=${BASH_REMATCH[1]}
            minor=${BASH_REMATCH[2]}
            patch=${BASH_REMATCH[3]}
            next_patch=$((patch + 1))
            next_tag="v${major}.${minor}.${next_patch}"
            echo "Next tag version: $next_tag"
            echo "next_tag=$next_tag" >> $GITHUB_ENV
          else
            # Default to v0.0.1 if no valid tag found
            echo "No valid tag found, starting with v0.0.1"
            echo "next_tag=v0.0.1" >> $GITHUB_ENV
          fi

      - name: Create and push new tag
        env:
          TAG_NAME: ${{ env.next_tag }}
        run: |
          git tag $TAG_NAME
          git push origin $TAG_NAME