# This workflow will perform a test whenever there
# is some change in code done to ensure that the changes
# are not buggy and we are getting the desired output.
name: Build
on:
  push:
  pull_request:
  workflow_dispatch:
  schedule:
    - cron: '0 0 * * *'  # every day at midnight

env:
  PROJECT_DIR: spring-petclinic
  IMAGE_NAME: spring-petclinic
  MVN_REPO_DIR: ~/.m2/repository

jobs:
  build:
    name: Build image using Buildah
    runs-on: ubuntu-20.04
    steps:

      # Checkout buildah action github repository
      - name: Checkout Buildah action
        uses: actions/checkout@v2
        with:
          path: "buildah-build"

      # Checkout spring-petclinic github repository
      - name: Checkout spring-petclinic project
        uses: actions/checkout@v2
        with:
          repository: "spring-projects/spring-petclinic"
          path: ${{ env.PROJECT_DIR }}

      # If none of these files has changed, we assume that the contents of
      # .m2/repository can be fetched from the cache.
      - name: Hash Maven files
        working-directory: ${{ env.PROJECT_DIR }}
        run: |
          echo "MVN_HASH=${{ hashFiles('**/pom.xml', '.mvn/**/*', 'mvnw*') }}" >> $GITHUB_ENV

      # Download the m2 repository from the cache to speed up the build.
      - name: Check for Maven cache
        id: check-mvn-cache
        uses: actions/cache@v2
        with:
          path: ${{ env.MVN_REPO_DIR }}
          key: ${{ env.MVN_HASH }}

      # Setup java.
      - name: Setup Java
        uses: actions/setup-java@v1
        with:
          java-version: 11

      # Run maven to build the project
      - name: Maven
        working-directory: ${{ env.PROJECT_DIR }}
        run: |
          mvn package -ntp -B

       # If there was no cache hit above, store the output into the cache now.
      - name: Save Maven repo into cache
        if: ${{ steps.check-mvn-cache.outputs.cache-hit }} != 'true'
        uses: actions/cache@v2
        with:
          path: ${{ env.MVN_REPO_DIR }}
          key: ${{ env.MVN_HASH }}

      # Workaround to fix https://github.com/containers/buildah/issues/3120
      - run: |
          sudo apt-get install fuse-overlayfs
          mkdir -vp ~/.config/containers
          printf "[storage.options]\nmount_program=\"/usr/bin/fuse-overlayfs\"" > ~/.config/containers/storage.conf

      # Build image using Buildah action
      - name: Build Image
        id: build_image
        uses: ./buildah-build/
        with:
          image: ${{ env.IMAGE_NAME }}
          tags: 'latest ${{ github.sha }}'
          base-image: 'registry.access.redhat.com/openjdk/openjdk-11-rhel7'
          # To avoid hardcoding a particular version of the binary.
          content: |
            ./spring-petclinic/target/spring-petclinic-*.jar
          entrypoint: |
            java
            -jar
            spring-petclinic-*.jar
          port: 8080
          archs: amd64,arm64

      - name: Echo Outputs
        run: |
          echo "Image: ${{ steps.build_image.outputs.image }}"
          echo "Tags: ${{ steps.build_image.outputs.tags }}"

      # Check if image is build
      - name: Check images created
        run: buildah images | grep '${{ env.IMAGE_NAME }}'