create-version-tag.yml

name: Create Version Tag

on:
  workflow_run:
    workflows: ["Build"]
    types: [completed]
    branches: [main]

permissions:
  contents: write

jobs:
  create-tag:
    if: github.event.workflow_run.conclusion == 'success'
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v6
        with:
          fetch-depth: 0

      - name: Extract version
        id: version
        run: |
          VERSION=$(sed -n 's/.*"version": "\([^"]*\)".*/\1/p' sources.json | head -1)
          echo "version=$VERSION" >> "$GITHUB_OUTPUT"
          echo "major=${VERSION%%.*}" >> "$GITHUB_OUTPUT"

      - name: Check if version tag exists
        id: check-tag
        run: |
          if git rev-parse "v${{ steps.version.outputs.version }}" >/dev/null 2>&1; then
            echo "exists=true" >> "$GITHUB_OUTPUT"
          else
            echo "exists=false" >> "$GITHUB_OUTPUT"
          fi

      - name: Configure git
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"

      - name: Create version tag
        if: steps.check-tag.outputs.exists == 'false'
        run: |
          git tag -a "v${{ steps.version.outputs.version }}" -m "Release v${{ steps.version.outputs.version }}"
          git push origin "v${{ steps.version.outputs.version }}"

      - name: Update moving tags
        if: steps.check-tag.outputs.exists == 'false'
        run: |
          VERSION="${{ steps.version.outputs.version }}"
          MAJOR="${{ steps.version.outputs.major }}"

          git push origin :refs/tags/latest 2>/dev/null || true
          git push origin ":refs/tags/v$MAJOR" 2>/dev/null || true
          git tag -d latest 2>/dev/null || true
          git tag -d "v$MAJOR" 2>/dev/null || true

          git tag -a latest -m "Latest release: v$VERSION"
          git tag -a "v$MAJOR" -m "Latest v$MAJOR release: v$VERSION"
          git push origin latest "v$MAJOR"

      - name: Summary
        run: |
          echo "## Tag Summary" >> "$GITHUB_STEP_SUMMARY"
          echo "" >> "$GITHUB_STEP_SUMMARY"
          echo "| Tag | Points To |" >> "$GITHUB_STEP_SUMMARY"
          echo "| --- | --- |" >> "$GITHUB_STEP_SUMMARY"
          if [ "${{ steps.check-tag.outputs.exists }}" = "false" ]; then
            echo "| v${{ steps.version.outputs.version }} | $(git rev-parse --short HEAD) |" >> "$GITHUB_STEP_SUMMARY"
            echo "| v${{ steps.version.outputs.major }} | v${{ steps.version.outputs.version }} |" >> "$GITHUB_STEP_SUMMARY"
            echo "| latest | v${{ steps.version.outputs.version }} |" >> "$GITHUB_STEP_SUMMARY"
          else
            echo "| v${{ steps.version.outputs.version }} | unchanged (already existed) |" >> "$GITHUB_STEP_SUMMARY"
            echo "| v${{ steps.version.outputs.major }} | unchanged |" >> "$GITHUB_STEP_SUMMARY"
            echo "| latest | unchanged |" >> "$GITHUB_STEP_SUMMARY"
          fi