docker.yml

name: Build Docker Image

on:
  push:
    tags:
      - 'v*.*.*'

jobs:
  build:
    name: Build Docker Image

    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v3

    - name: Get the version
      id: get_version
      run: |
        echo ::set-output name=version::$(cat ustvgo_iptv.py \
        | grep  "^VERSION = '\([0-9.]\+\)'" | grep -o "[0-9.]\+")
      shell: bash

    - name: Get the tag
      id: get_tag
      run: echo ::set-output name=tag::${GITHUB_REF#refs/tags/}
      shell: bash

    - name: Version check
      if: ${{ format('v{0}', steps.get_version.outputs.version) != steps.get_tag.outputs.tag }}
      uses: actions/github-script@v3
      with:
        script: |
            core.setFailed('tag and version are not equivalent!')

    - name: Login to GitHub Container Registry
      uses: docker/login-action@v2
      with:
        registry: ghcr.io
        username: ${{ github.repository_owner }}
        password: ${{ secrets.GITHUB_TOKEN }}

    - name: Image tags
      run: |
        tags=()
        for tag in "latest" "${{ steps.get_version.outputs.version }}"; do
            tags+=("ghcr.io/${{ github.repository }}:${tag}")
        done
        echo "IMAGE_TAGS=$(IFS=,; echo "${tags[*]}")" >> $GITHUB_ENV

    - name: Build and push
      uses: docker/build-push-action@v2
      with:
        push: true
        tags: ${{ env.IMAGE_TAGS }}