# This is a GitHub workflow defining a set of jobs with a set of steps.
# ref: https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions
#
name: Docker build

on:
  pull_request:
    paths-ignore:
      - "docs/**"
      - "**.md"
      - "**.rst"
      - ".github/workflows/*"
      - "!.github/workflows/docker.yml"
  push:
    paths-ignore:
      - "docs/**"
      - "**.md"
      - "**.rst"
      - ".github/workflows/*"
      - "!.github/workflows/docker.yml"
    branches-ignore:
      - "dependabot/**"
      - "pre-commit-ci-update-config"
    tags:
      - "**"
  workflow_dispatch:

jobs:
  docker:
    runs-on: ubuntu-22.04
    steps:
      - name: Checkout code
        uses: actions/checkout@v3
        with:
          fetch-depth: 0

      # https://github.com/docker/build-push-action
      - name: Build Docker image
        uses: docker/build-push-action@v3
        with:
          context: .
          tags: jupyter/repo2docker:pr
          push: false

      - name: Run repo2docker Docker image
        run: docker run jupyter/repo2docker:pr repo2docker --version