tag.yml

name: Tag

on:
  workflow_dispatch:
    inputs:
      tag:
        description: 'Tag to create (e.g. 4.2.0)'
        required: false
        default: ''
      description:
        description: 'Tag description'
        required: false
        default: ''

jobs:
  create_tag:
    runs-on: ubuntu-latest
    outputs:
      new_tag: ${{ steps.create_new_tag.outputs.new_tag }}
    steps:
      - name: 🛎️ Checkout Repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: 🧪 Get Current Tag
        id: get_current_tag
        run: |
          CURRENT_TAG=$(git describe --tags --abbrev=0 2>/dev/null || echo "0.0.0")
          echo "CURRENT_TAG=$CURRENT_TAG" >> $GITHUB_ENV
          echo "Current tag is $CURRENT_TAG"

      - name: 📝 Determine New Tag
        id: determine_new_tag
        run: |
          INPUT_TAG=${{ github.event.inputs.tag }}
          CURRENT_TAG=${{ env.CURRENT_TAG }}
          if [ -z "$INPUT_TAG" ]; then
            MAJOR=$(echo $CURRENT_TAG | cut -d. -f1)
            MINOR=$(echo $CURRENT_TAG | cut -d. -f2)
            PATCH=$(echo $CURRENT_TAG | cut -d. -f3)
            NEW_TAG="$MAJOR.$MINOR.$((PATCH+1))"
          else
            NEW_TAG=$INPUT_TAG
          fi
          echo "NEW_TAG=$NEW_TAG" >> $GITHUB_ENV
          echo "New tag is $NEW_TAG"

      - name: ⚠️ Check Tag Validity
        id: check_tag_validity
        run: |
          CURRENT_TAG=${{ env.CURRENT_TAG }}
          NEW_TAG=${{ env.NEW_TAG }}
          if [ $(echo -e "$CURRENT_TAG\n$NEW_TAG" | sort -V | head -n1) = "$NEW_TAG" ] && [ "$CURRENT_TAG" != "$NEW_TAG" ]; then
            echo "::warning::The new tag $NEW_TAG is lower than the current tag $CURRENT_TAG"
          fi
      
      - name: ❌ Ensure Tag Doesn't Already Exist
        id: ensure_tag_doesnt_exist
        run: |
          NEW_TAG=${{ env.NEW_TAG }}
          if git rev-parse "refs/tags/$NEW_TAG" >/dev/null 2>&1; then
            echo "::error::The tag $NEW_TAG already exists."
            exit 1
          fi

      - name: 🔑 Set Up Git User
        run: |
          git config user.name "Liss-Bot"
          git config user.email "liss-bot@d0h.co"
          git config --global init.defaultBranch main

      - name: 📦 Create New Tag
        id: create_new_tag
        run: |
          NEW_TAG=${{ env.NEW_TAG }}
          DESCRIPTION="${{ github.event.inputs.description }}"
          git tag -a "$NEW_TAG" -m "$DESCRIPTION"
          echo "new_tag=$NEW_TAG" >> $GITHUB_OUTPUT

      - name: 📄 Create Tag File
        run: echo $NEW_TAG > tag.txt

      - name: ⬆️ Upload Tag Artifact
        uses: actions/upload-artifact@v4
        with:
          name: tag
          path: tag.txt

      - name: 🚀 Push New Tag
        run: |
          if [ -n "${{ secrets.BOT_TOKEN }}" ]; then
            TOKEN=${{ secrets.BOT_TOKEN }}
          else
            TOKEN=${{ secrets.GITHUB_TOKEN }}
          fi
          git push https://$TOKEN@github.com/${{ github.repository }} "$NEW_TAG"
        env:
          NEW_TAG: ${{ env.NEW_TAG }}