name: CI

on:
  schedule:
    - cron: '0 5 * * *' # everyday at 5 am UTC
  push:
    branches:
      - master
    tags:
      - v[0-9]+.[0-9]+.[0-9]+
  pull_request:

jobs:
  build:
    name: Build
    runs-on: ubuntu-latest
    env:
      GOFLAGS: -mod=readonly

    services:
      postgres:
        image: postgres:10.8
        ports:
          - 5432
        options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5

      mysql:
        image: mysql:5.7
        env:
          MYSQL_ROOT_PASSWORD: root
          MYSQL_DATABASE: dex
        ports:
          - 3306:3306
        options: --health-cmd "mysql -proot -e \"show databases;\"" --health-interval 10s --health-timeout 5s --health-retries 5

      etcd:
        image: gcr.io/etcd-development/etcd:v3.2.9
        ports:
          - 2379
        env:
          ETCD_LISTEN_CLIENT_URLS: http://0.0.0.0:2379
          ETCD_ADVERTISE_CLIENT_URLS: http://0.0.0.0:2379
        options: --health-cmd "ETCDCTL_API=3 etcdctl --endpoints http://localhost:2379 endpoint health" --health-interval 10s --health-timeout 5s --health-retries 5

      keystone:
        image: openio/openstack-keystone:pike
        ports:
          - 5000
          - 35357
        options: --health-cmd "curl --fail http://localhost:5000/v3" --health-interval 10s --health-timeout 5s --health-retries 5

    steps:
      - name: Set up Go
        uses: actions/setup-go@v1
        with:
          go-version: 1.15

      - name: Checkout code
        uses: actions/checkout@v2

      - name: Run tests
        run: make testall
        env:
          DEX_FOO_USER_PASSWORD: $2a$10$33EMT0cVYVlPy6WAMCLsceLYjWhuHpbz5yuZxu/GAFj03J9Lytjuy
          DEX_MYSQL_DATABASE: dex
          DEX_MYSQL_USER: root
          DEX_MYSQL_PASSWORD: root
          DEX_MYSQL_HOST: 127.0.0.1
          DEX_MYSQL_PORT: 3306
          DEX_POSTGRES_DATABASE: postgres
          DEX_POSTGRES_USER: postgres
          DEX_POSTGRES_PASSWORD: postgres
          DEX_POSTGRES_HOST: localhost
          DEX_POSTGRES_PORT: ${{ job.services.postgres.ports[5432] }}
          DEX_ETCD_ENDPOINTS: http://localhost:${{ job.services.etcd.ports[2379] }}
          DEX_LDAP_TESTS: 1
          DEX_KEYSTONE_URL: http://localhost:${{ job.services.keystone.ports[5000] }}
          DEX_KEYSTONE_ADMIN_URL: http://localhost:${{ job.services.keystone.ports[35357] }}
          DEX_KEYSTONE_ADMIN_USER: demo
          DEX_KEYSTONE_ADMIN_PASS: DEMO_PASS

      - name: Run linter
        run: make lint

      # Ensure proto generation doesn't depend on external packages.
      - name: Verify proto
        run: make verify-proto

  docker:
    name: Docker
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Calculate Docker image tags
        id: tags
        env:
          DOCKER_IMAGES: "ghcr.io/dexidp/dex dexidp/dex"
        run: |
          VERSION=noop

          if [[ "${{ github.event_name }}" == "schedule" ]]; then
            VERSION=nightly
          else
            case $GITHUB_REF in
              refs/tags/*)  VERSION=${GITHUB_REF#refs/tags/};;
              refs/heads/*) VERSION=$(echo ${GITHUB_REF#refs/heads/} | sed -r 's#/+#-#g');;
              refs/pull/*)  VERSION=pr-${{ github.event.number }};;
              *)            VERSION=sha-${GITHUB_SHA::8};;
            esac
          fi

          TAGS=()
          for image in $DOCKER_IMAGES; do
            TAGS+=("${image}:${VERSION}")

            if [[ "${{ github.event.repository.default_branch }}" == "$VERSION" ]]; then
              TAGS+=("${image}:latest")
            fi
          done

          echo ::set-output name=version::${VERSION}
          echo ::set-output name=tags::$(IFS=,; echo "${TAGS[*]}")
          echo ::set-output name=commit_hash::${GITHUB_SHA::8}
          echo ::set-output name=build_date::$(git show -s --format=%cI)

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v1
        with:
          platforms: all

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1
        with:
          install: true
          version: latest
          # TODO: Remove driver-opts once fix is released docker/buildx#386
          driver-opts: image=moby/buildkit:master

      - name: Login to GitHub Container Registry
        uses: docker/login-action@v1
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.CR_PAT }}
        if: github.event_name == 'push'

      - name: Login to Docker Hub
        uses: docker/login-action@v1
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}
        if: github.event_name == 'push'

      - name: Build and push
        uses: docker/build-push-action@v2
        with:
          context: .
          platforms: linux/amd64,linux/arm/v7,linux/arm64
          push: ${{ github.event_name == 'push' }}
          tags: ${{ steps.tags.outputs.tags }}
          build-args: |
            VERSION=${{ steps.tags.outputs.version }}
            COMMIT_HASH=${{ steps.tags.outputs.commit_hash }}
            BUILD_DATE=${{ steps.tags.outputs.build_date }}
          labels: |
            org.opencontainers.image.title=${{ github.event.repository.name }}
            org.opencontainers.image.description=${{ github.event.repository.description }}
            org.opencontainers.image.url=${{ github.event.repository.html_url }}
            org.opencontainers.image.source=${{ github.event.repository.clone_url }}
            org.opencontainers.image.version=${{ steps.tags.outputs.version }}
            org.opencontainers.image.created=${{ steps.tags.outputs.build_date }}
            org.opencontainers.image.revision=${{ github.sha }}
            org.opencontainers.image.licenses=${{ github.event.repository.license.spdx_id }}
            org.opencontainers.image.documentation=https://dexidp.io/docs/