name: Release

on:
  push:
    tags:
      - 'v[0-9]+.[0-9]+.[0-9]+[a-z]?'

jobs:
  docker-build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@5a4ac9002d0be2fb38bd78e4b4dbde5606d7042f # v2.3.4

      - name: Login to Docker Hub
        uses: docker/login-action@f054a8b539a109f9f41c372932f1ae047eff08c9 # v1.10.0
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      # Determine Docker Tag
      - name: Init Variables
        id: vars
        shell: bash
        run: |
          if [[ "${{ github.ref }}" == refs/tags/* ]]; then
            echo "set-output name=DOCKER_TAG::${GITHUB_REF#refs/*/}"
            echo "::set-output name=DOCKER_TAG::${GITHUB_REF#refs/*/}"
          elif [[ "${{ github.ref }}" == refs/heads/* ]]; then
            echo "set-output name=DOCKER_TAG::testing"
            echo "::set-output name=DOCKER_TAG::testing"
          fi

      - name: Build and push
        uses: docker/build-push-action@a66e35b9cbcf4ad0ea91ffcaf7bbad63ad9e0229 # v2.7.0
        with:
          context: .
          push: true
          # secrets.DOCKERHUB_REPO needs to be '<user>/<repo>', for example 'vaultwarden/web-vault'
          tags: "${{ secrets.DOCKERHUB_REPO }}:${{ steps.vars.outputs.DOCKER_TAG }}"