name: CI

# To run on the GCP replace all 'ubuntu-latest' with 'self-hosted'
on:
  # Runs on pushes to all but CID-latest-branches
  # CID-latest branches automatically create PRs, let's just let the tests run on those
  push:
  # Runs on Pull Requests
  pull_request:
  # Runs every day at midnight UTC
  schedule:
    - cron: "0 0 * * *"
  # Manual Dispatch
  workflow_dispatch:

jobs:
  docker_build:
    runs-on: ubuntu-20.04
    outputs:
      matrix: ${{ steps.set-matrix.outputs.matrix }}
      issue_regression_matrix: ${{ steps.set-matrix.outputs.issue_regression_matrix }}
    steps:
      - uses: actions/checkout@v2

      # EXPORT BLOCK
      - name: Export Repo URL
        run: echo "REPO_URL=https://github.com/${{ github.repository }}.git" >> $GITHUB_ENV

      - name: Export PDK ROOT
        run: echo "PDK_ROOT=/usr/local/pdk" >> $GITHUB_ENV

      - name: Export Branch Name
        run: echo "BRANCH_NAME=${GITHUB_REF##*/}" >> $GITHUB_ENV

      - name: Export Temp Image Name
        run: echo "OPENLANE_IMAGE_NAME=openlane:intermediate" >> $GITHUB_ENV
      # END EXPORT BLOCK

      - name: Check If Going To Push An Image To Docker
        # # Uncomment the next line if you want to only build & push a container if entire test set succeeds
        # if: needs.test.result == 'success'
        # Ruby snippet to print 0 if this is a PR or if there is no DOCKERHUB_USER secret set, otherwise, 1
        run: |
          export PUSHING=$(ruby -e 'if ("${{ github.event_name }}" != "pull_request" && "${{ secrets.DOCKERHUB_USER }}" != ""); print(1) else print(0) end')
          echo "PUSHING=$PUSHING" >> $GITHUB_ENV

      - name: Login to DockerHub
        if: ${{ env.PUSHING == '1' }}
        uses: docker/login-action@v1
        with:
          username: ${{ secrets.DOCKERHUB_USER }}
          password: ${{ secrets.DOCKERHUB_PASSWORD }}

      - name: Docker Build
        run: |
          export BUILD_IF_CANT_PULL=1
          if [ $PUSHING = '1' ]; then
            export BUILD_IF_CANT_PULL_THEN_PUSH=1
          fi
          cd docker/ && make merge

      - name: Build (or Get) PDK
        run: |
          sudo mkdir -p ${{ env.PDK_ROOT }}
          sudo chown -R $USER:$USER ${{ env.PDK_ROOT }}
          go get -u github.com/tcnksm/ghr
          export PATH=$PATH:$(go env GOPATH)/bin
          python3 -m pip install --upgrade --no-cache-dir volare
          export OPDKS_VER="$(python3 ./dependencies/tool.py open_pdks -f commit)"
          if [ "${{ secrets.VOLARE_REPO }}" != "" ]; then
            volare enable_or_build\
              --also-push\
              --token ${{ secrets.MY_TOKEN }}\
              --owner ${{ secrets.VOLARE_OWNER }}\
              --repository ${{ secrets.VOLARE_REPO }}\
              -j$(nproc)\
              $OPDKS_VER
          else
            volare enable_or_build\
              --token ${{ secrets.MY_TOKEN }}\
              -j$(nproc)\
              $OPDKS_VER
          fi

      - name: Export Docker Image
        run: docker save -o /tmp/image.tar ${{ env.OPENLANE_IMAGE_NAME }}

      - name: Upload Docker Image
        uses: actions/upload-artifact@v2
        with:
          name: docker-image
          path: /tmp/image.tar

      - name: Tarball PDK
        run: |
          tar -cf /tmp/sky130A.tar -C $PDK_ROOT/sky130A .

      - name: Upload PDK Tarball
        uses: actions/upload-artifact@v2
        with:
          name: pdk-tarball
          path: /tmp/sky130A.tar

      - name: Determine If Running Extended Test Set
        run: |
          export EVENT_NAME=${{ github.event_name }};
          python3 ./.github/scripts/determine_test_set.py

      - name: Prepare Test Matrix
        id: set-matrix
        run: |
          if [[ "$USE_ETS" = "1" ]]; then
            echo "::set-output name=matrix::$(python3 ./.github/test_sets/get_test_matrix.py fastest_test_set extended_test_set)"
          else
            echo "::set-output name=matrix::$(python3 ./.github/test_sets/get_test_matrix.py fastest_test_set)"
          fi
          echo "::set-output name=issue_regression_matrix::$(python3 ./run_issue_regressions.py get_matrix)"

  issue_regression_test:
    needs: docker_build
    runs-on: ubuntu-20.04
    strategy:
      fail-fast: false
      matrix: ${{ fromJSON(needs.docker_build.outputs.issue_regression_matrix) }}
    name: Test Issue Regression ${{ matrix.design }}
    steps:
      - uses: actions/checkout@v2
      # EXPORT BLOCK
      - name: Export Repo URL
        run: echo "REPO_URL=https://github.com/${{ github.repository }}.git" >> $GITHUB_ENV

      - name: Export PDK ROOT
        run: echo "PDK_ROOT=/usr/local/pdk" >> $GITHUB_ENV

      - name: Export Branch Name
        run: echo "BRANCH_NAME=${GITHUB_REF##*/}" >> $GITHUB_ENV

      - name: Export Temp Image Name
        run: echo "OPENLANE_IMAGE_NAME=openlane:intermediate" >> $GITHUB_ENV
      # END EXPORT BLOCK

      - name: Download Docker Image
        uses: actions/download-artifact@v2
        with:
          name: docker-image
          path: /tmp

      - name: Import Docker Image
        run: docker load --input /tmp/image.tar

      - name: Download PDK Tarball
        uses: actions/download-artifact@v2
        with:
          name: pdk-tarball
          path: /tmp

      - name: Unpack PDK Tarball
        run: |
          sudo mkdir -p ${{ env.PDK_ROOT }}/sky130A
          sudo chown -R $USER:$USER ${{ env.PDK_ROOT }}
          tar -xf /tmp/sky130A.tar -C $PDK_ROOT/sky130A .

      - name: Get Pyyaml
        run: python3 -m pip install pyyaml

      - name: Run Issue Regression Test
        run: cd ${GITHUB_WORKSPACE}/ &&  make run_issue_regression ISSUE_REGRESSION_DESIGN=${{ matrix.design }}
  # Each test has two components: a fast test set and an extended test set.
  # The fast test set is run on all PRs, etc. The extended test set runs on schedule.
  test:
    needs: docker_build
    runs-on: ubuntu-20.04
    strategy:
      fail-fast: false
      matrix: ${{ fromJSON(needs.docker_build.outputs.matrix) }}
    name: Test Design ${{ matrix.design }}
    steps:
      - uses: actions/checkout@v2

      # EXPORT BLOCK
      - name: Export Repo URL
        run: echo "REPO_URL=https://github.com/${{ github.repository }}.git" >> $GITHUB_ENV

      - name: Export PDK ROOT
        run: echo "PDK_ROOT=/usr/local/pdk" >> $GITHUB_ENV

      - name: Export Branch Name
        run: echo "BRANCH_NAME=${GITHUB_REF##*/}" >> $GITHUB_ENV

      - name: Export Temp Image Name
        run: echo "OPENLANE_IMAGE_NAME=openlane:intermediate" >> $GITHUB_ENV
      # END EXPORT BLOCK

      - name: Download Docker Image
        uses: actions/download-artifact@v2
        with:
          name: docker-image
          path: /tmp

      - name: Import Docker Image
        run: docker load --input /tmp/image.tar

      - name: Download PDK Tarball
        uses: actions/download-artifact@v2
        with:
          name: pdk-tarball
          path: /tmp

      - name: Unpack PDK Tarball
        run: |
          sudo mkdir -p ${{ env.PDK_ROOT }}/sky130A
          sudo chown -R $USER:$USER ${{ env.PDK_ROOT }}
          tar -xf /tmp/sky130A.tar -C $PDK_ROOT/sky130A .

      - name: Get Pyyaml
        run: python3 -m pip install pyyaml

      - name: Run Test
        run: cd ${GITHUB_WORKSPACE}/ && python3 ${GITHUB_WORKSPACE}/.github/scripts/run_tests.py ${{ matrix.design }}

      - name: Upload Run Tarball
        if: ${{ always() }}
        uses: actions/upload-artifact@v2
        with:
          name: ${{ matrix.design }}
          path: ./reproducible.tar.gz

  cleanup_and_deploy:
    name: Cleanup (and Possibly Deployment)
    needs: [test, issue_regression_test]
    if: always()
    runs-on: ubuntu-20.04
    steps:
      - name: Check If Going To Push An Image To Docker
        # # Uncomment the next line if you want to only build & push a container if entire test set succeeds
        # if: needs.test.result == 'success'
        # Ruby snippet to print 0 if this is a PR or if there is no DOCKERHUB_USER secret set, otherwise, 1
        run: |
          export PUSHING=$(ruby -e 'if ("${{ github.event_name }}" != "pull_request" && "${{ secrets.DOCKERHUB_USER }}" != ""); print(1) else print(0) end')
          echo "PUSHING=$PUSHING" >> $GITHUB_ENV

      - uses: actions/checkout@v2
        if: ${{ env.PUSHING == '1' }}
        with:
          fetch-depth: 0

      # EXPORT BLOCK
      - name: Export Repo URL
        run: echo "REPO_URL=https://github.com/${{ github.repository }}.git" >> $GITHUB_ENV

      - name: Export PDK ROOT
        run: echo "PDK_ROOT=/usr/local/pdk" >> $GITHUB_ENV

      - name: Export Branch Name
        run: echo "BRANCH_NAME=${GITHUB_REF##*/}" >> $GITHUB_ENV

      - name: Export Temp Image Name
        run: echo "OPENLANE_IMAGE_NAME=openlane:intermediate" >> $GITHUB_ENV
      # END EXPORT BLOCK

      - name: Download Docker Image
        if: ${{ env.PUSHING == '1' }}
        uses: actions/download-artifact@v2
        with:
          name: docker-image
          path: /tmp

      - name: Delete Docker Image
        uses: geekyeggo/delete-artifact@v1
        with:
          name: docker-image

      - name: Delete PDK
        uses: geekyeggo/delete-artifact@v1
        with:
          name: pdk-tarball

      - name: Import Docker Image
        if: ${{ env.PUSHING == '1' }}
        run: docker load --input /tmp/image.tar

      - name: Write Main Branch
        if: ${{ env.PUSHING == '1' }}
        run: |
          echo "MAIN_BRANCH=${{ secrets.MAIN_BRANCH }}" >> $GITHUB_ENV

      - name: Write Hash
        run: |
          echo "GIT_COMMIT_HASH=$(git rev-parse HEAD)" >> $GITHUB_ENV

      - name: Create Tag (If scheduled or dispatched)
        if: ${{ env.PUSHING == '1' && (github.event_name == 'schedule' || github.event_name == 'workflow_dispatch') && env.BRANCH_NAME == env.MAIN_BRANCH }}
        run: cd ${GITHUB_WORKSPACE}/ && python3 ${GITHUB_WORKSPACE}/.github/scripts/generate_tag.py

      - name: Tag Commit (If scheduled or dispatched)
        if: ${{ env.PUSHING == '1' && (github.event_name == 'schedule' || github.event_name == 'workflow_dispatch') && env.NEW_TAG != 'NO_NEW_TAG' }}
        uses: tvdias/github-tagger@v0.0.1
        with:
          tag: "${{ env.NEW_TAG }}"
          repo-token: "${{ secrets.MY_TOKEN }}"

      - name: Login to DockerHub
        if: ${{ env.PUSHING == '1' }}
        uses: docker/login-action@v1
        with:
          username: ${{ secrets.DOCKERHUB_USER }}
          password: ${{ secrets.DOCKERHUB_PASSWORD }}

      - name: Docker Push (Hash)
        if: ${{ env.PUSHING == '1' && github.event_name == 'push' && env.BRANCH_NAME == env.MAIN_BRANCH }}
        run: |
          docker image tag ${{ env.OPENLANE_IMAGE_NAME }} ${{ secrets.DOCKER_IMAGE }}:${{ env.GIT_COMMIT_HASH }}
          docker push ${{ secrets.DOCKER_IMAGE }}:${{ env.GIT_COMMIT_HASH }}

      - name: Docker Push (Branch)
        if: ${{ env.PUSHING == '1' && github.event_name == 'push' }}
        run: |
          docker image tag ${{ env.OPENLANE_IMAGE_NAME }} ${{ secrets.DOCKER_IMAGE }}:${{ env.BRANCH_NAME }}
          docker push ${{ secrets.DOCKER_IMAGE }}:${{ env.BRANCH_NAME }}

      - name: Docker Push (Tag) (If scheduled or dispatched)
        if: ${{ env.PUSHING == '1' && (github.event_name == 'schedule' || github.event_name == 'workflow_dispatch') && env.NEW_TAG != 'NO_NEW_TAG' }}
        run: |
          docker image tag ${{ env.OPENLANE_IMAGE_NAME }} ${{ secrets.DOCKER_IMAGE }}:${{ env.NEW_TAG }}
          docker image tag ${{ env.OPENLANE_IMAGE_NAME }} ${{ secrets.DOCKER_IMAGE }}:latest
          docker push ${{ secrets.DOCKER_IMAGE }}:${{ env.NEW_TAG }}
          docker push ${{ secrets.DOCKER_IMAGE }}:latest