devcontainer.yml

name: Generation Dev Container Base Image

on:
  push:
    branches:
      - 'devcontainer-test'
      - 'main'
    paths:
      - '.devcontainer/base.Dockerfile'
      - 'library-scripts/**/*'

jobs:
  devcontainer:
    name: Generate base image
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        id: checkout
        uses: actions/checkout@v2

      - name: Build and push dev container base image
        id: build_and_push
        run: |
          set -e
          CONTAINER_IMAGE_REGISTRY=ghcr.io
          REPOSITORY_PATH=codespaces-contrib/demo/dependency-caching
          IMAGE_REPOSITORY="${CONTAINER_IMAGE_REGISTRY}/${REPOSITORY_PATH}" 

          echo "${{ secrets.GHCR_PAT }}" | docker login ${CONTAINER_IMAGE_REGISTRY} -u "${{ secrets.GHCR_USER }}" --password-stdin 

          cd .devcontainer
          BRANCH="$(git rev-parse --abbrev-ref HEAD)"
          BRANCH_TAG="base-${BRANCH//\//-}"
          docker build -t "${IMAGE_REPOSITORY}:${BRANCH_TAG}" -f "base.Dockerfile" .
          docker push "${IMAGE_REPOSITORY}:${BRANCH_TAG}"
          if [ "${BRANCH}" = "master" ] ||  [ "${BRANCH}" = "main" ]; then
            docker tag "${IMAGE_REPOSITORY}:${BRANCH_TAG}" "${IMAGE_REPOSITORY}:latest"
            docker push "${IMAGE_REPOSITORY}:latest"
          fi