push-ghcr-image.yml

name: Build and push latest GHCR Docker image
on:
  workflow_call:
    secrets:
      DOCKER_GHCR:
        description: Docker GHCR token
        required: true
    inputs:
      git_tag_name:
        required: true
        type: string
  workflow_dispatch:
    inputs:
      git_tag_name:
        description: Git version tag (eg. v0.9.0)
        required: true

jobs:
  push-image:
    name: Push latest image
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          token: ${{ secrets.DOCKER_GHCR }}

      - name: Fetch all tags
        run: git fetch --tags

      - name: Build Docker image
        run: docker build -t tinted-builder-rust .

      - name: Tag Docker image
        run: |
          docker tag tinted-builder-rust ghcr.io/tinted-theming/tinted-builder-rust:${{ inputs.git_tag_name }}
          docker tag tinted-builder-rust ghcr.io/tinted-theming/tinted-builder-rust:latest

      - name: Log in to GitHub Container Registry
        run: echo ${{ secrets.DOCKER_GHCR }} | docker login ghcr.io -u tinted-theming-bot --password-stdin

      - name: Push Docker image
        run: |
          docker push ghcr.io/tinted-theming/tinted-builder-rust:${{ inputs.git_tag_name }}
          docker push ghcr.io/tinted-theming/tinted-builder-rust:latest

      - name: Remove existing 'latest' tag
        run: |
          if git rev-parse latest >/dev/null 2>&1; then
            git tag -d latest
            git push origin :refs/tags/latest
          fi

      - name: Add 'latest' tag to LATEST_TAG commit
        run: |
          git_tag_commit_hash=$(git rev-list -n 1 ${{ inputs.git_tag_name }})
          git tag latest ${git_tag_commit_hash}
          git push origin latest