{%- set upload_artifact_s3_action = "seemethere/upload-artifact-s3@v3" -%}

{# squid_proxy is an private ELB that only available for GHA custom runners #}
{%- set squid_proxy    = "http://internal-tf-lb-20210727220640487900000002-835786077.us-east-1.elb.amazonaws.com:3128" -%}
{# squid_no_proxy is a list of common set of fixed domains or IPs that we don't need to proxy. See https://docs.aws.amazon.com/AmazonECS/latest/developerguide/http_proxy_config.html#windows-proxy #}
{%- set squid_no_proxy = "localhost,127.0.0.1,github.com,amazonaws.com,s3.amazonaws.com,169.254.169.254,169.254.170.2,/var/run/docker.sock" -%}
{%- set timeout_minutes = 240 -%}

{%- macro concurrency(build_environment) -%}
concurrency:
  group: !{{ build_environment }}-${{ github.event.pull_request.number || github.sha }}-${{ github.event_name == 'workflow_dispatch' }}
  cancel-in-progress: true
{%- endmacro -%}

{%- macro add_retry_to_env() -%}
          retry () {
              "$@"  || (sleep 1 && "$@") || (sleep 2 && "$@")
          }
{%- endmacro -%}

{%- macro display_ec2_information() -%}
      - name: Display EC2 information
        shell: bash
        run: |
          set -euo pipefail
          function get_ec2_metadata() {
            # Pulled from instance metadata endpoint for EC2
            # see https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instancedata-data-retrieval.html
            category=$1
            curl -fsSL "http://169.254.169.254/latest/meta-data/${category}"
          }
          echo "ami-id: $(get_ec2_metadata ami-id)"
          echo "instance-id: $(get_ec2_metadata instance-id)"
          echo "instance-type: $(get_ec2_metadata instance-type)"
{%- endmacro -%}

{%- macro parse_ref(pytorch_directory="") -%}
      - name: Parse ref
{%- if pytorch_directory %}
        working-directory: !{{ pytorch_directory }}
{%- endif %}
        id: parse-ref
        run: .github/scripts/parse_ref.py
{%- endmacro -%}

{%- macro upload_test_statistics(build_environment, when="always()", pytorch_directory="") -%}
      - name: Display and upload test statistics (Click Me)
{%- if pytorch_directory %}
        working-directory: !{{ pytorch_directory }}
{%- endif %}
        if: !{{ when }}
        # temporary hack: set CIRCLE_* vars, until we update
        # tools/stats/print_test_stats.py to natively support GitHub Actions
        env:
          AWS_DEFAULT_REGION: us-east-1
          BRANCH: ${{ steps.parse-ref.outputs.branch }}
          JOB_BASE_NAME: !{{ build_environment }}-test
          PR_NUMBER: ${{ github.event.pull_request.number }}
          SHA1: ${{ github.event.pull_request.head.sha || github.sha }}
          TAG: ${{ steps.parse-ref.outputs.tag }}
          WORKFLOW_ID: '${{ github.run_id }}'
        shell: bash
        run: |
          python3 -m pip install -r requirements.txt
          python3 -m pip install boto3==1.19.12
          python3 -m tools.stats.print_test_stats --upload-to-s3 --compare-with-s3 test
{%- endmacro -%}

{%- macro chown_dir(dir) -%}
      - name: Chown artifacts
        if: always()
        run: |
          # Ensure the working directory gets chowned back to the current user
          docker run --rm -v "!{{ dir }}:/v" -w /v "${ALPINE_IMAGE}" chown -R "$(id -u):$(id -g)" .
{%- endmacro -%}

{%- macro setup_ec2_windows() -%}
      !{{ display_ec2_information() }}
      - name: "[FB EMPLOYEES] Enable SSH (Click me for login details)"
        uses: seemethere/add-github-ssh-key@v1
        with:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
{%- endmacro -%}

{%- macro setup_ec2_linux() -%}
      !{{ display_ec2_information() }}
      - name: Log in to ECR
        env:
          AWS_RETRY_MODE: standard
          AWS_MAX_ATTEMPTS: 5
        run: |
          AWS_ACCOUNT_ID=$(aws sts get-caller-identity|grep Account|cut -f4 -d\")
          !{{ add_retry_to_env() }}
          retry aws ecr get-login-password --region "$AWS_DEFAULT_REGION" | docker login --username AWS \
              --password-stdin "$AWS_ACCOUNT_ID.dkr.ecr.$AWS_DEFAULT_REGION.amazonaws.com"
      - name: Chown workspace
        run: |
          !{{ add_retry_to_env() }}
          retry docker pull "${ALPINE_IMAGE}"
          # Ensure the working directory gets chowned back to the current user
          docker run --pull=never --rm -v "$(pwd)":/v -w /v "${ALPINE_IMAGE}" chown -R "$(id -u):$(id -g)" .
      - name: Clean workspace
        run: |
          rm -rf "${GITHUB_WORKSPACE}"
          mkdir "${GITHUB_WORKSPACE}"
      - name: "[FB EMPLOYEES] Enable SSH (Click me for login details)"
        uses: seemethere/add-github-ssh-key@v1
        with:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      - name: Preserve github env variables for use in docker
        run: |
          env | grep '^GITHUB' > "/tmp/github_env_${GITHUB_RUN_ID}"
{%- endmacro -%}

{%- macro setup_rocm_linux() -%}
      - name: Clean workspace
        run: |
          rm -rf "${GITHUB_WORKSPACE}"
          mkdir "${GITHUB_WORKSPACE}"
      - name: Set DOCKER_HOST
        run: echo "DOCKER_HOST=unix:///run/user/$(id -u)/docker.sock" >> "${GITHUB_ENV}"
      - name: Runner health check system info
        if: always()
        run: |
          cat /etc/os-release || true
          cat /etc/apt/sources.list.d/rocm.list || true
          cat /opt/rocm/.info/version || true
          whoami
      - name: Runner health check rocm-smi
        if: always()
        run: |
          rocm-smi
      - name: Runner health check rocminfo
        if: always()
        run: |
          rocminfo
      - name: Runner health check GPU count
        if: always()
        run: |
          ngpu=$(rocminfo | grep -c -E 'Name:.*\sgfx')
          if [[ "x$ngpu" != "x2" && "x$ngpu" != "x4" ]]; then
              echo "Failed to detect GPUs on the runner"
              exit 1
          fi
      - name: Runner health check disconnect on failure
        if: ${{ failure() }}
        run: |
          killall runsvc.sh
      - name: Preserve github env variables for use in docker
        run: |
          env | grep '^GITHUB' > "/tmp/github_env_${GITHUB_RUN_ID}"
{%- endmacro -%}

{%- macro teardown_ec2_linux(pytorch_directory="") -%}
      - name: Hold runner for 2 hours or until ssh sessions have drained
{%- if pytorch_directory %}
        working-directory: !{{ pytorch_directory }}
{%- endif %}
        # Always hold for active ssh sessions
        if: always()
        run: .github/scripts/wait_for_ssh_to_drain.sh
      - name: Chown workspace
        if: always()
        run: |
          # Ensure the working directory gets chowned back to the current user
          docker run --rm -v "$(pwd)":/v -w /v "${ALPINE_IMAGE}" chown -R "$(id -u):$(id -g)" .
      - name: Kill containers, clean up images
        if: always()
        run: |
          # ignore expansion of "docker ps -q" since it could be empty
          # shellcheck disable=SC2046
          docker stop $(docker ps -q) || true
          # Prune all of the docker images
          docker system prune -af
{%- endmacro -%}

{%- macro teardown_rocm_linux() -%}
      - name: Kill containers, clean up images
        if: always()
        run: |
          # ignore expansion of "docker ps -q" since it could be empty
          # shellcheck disable=SC2046
          docker stop $(docker ps -q) || true
          # Prune all of the docker images
          docker system prune -af
{%- endmacro -%}

{%- macro checkout(submodules="recursive", deep_clone=True, directory="", repository="pytorch/pytorch", branch="") -%}
      - name: Checkout !{{ 'PyTorch' if repository == "pytorch/pytorch" else repository }}
        uses: zhouzhuojie/checkout@05b13c9a0d21f08f6d5e64a1d5042246d13619d9
        with:
      {%- if deep_clone %}
          # deep clone, to allow use of git merge-base
          fetch-depth: 0
      {%- endif %}
          submodules: !{{ submodules }}
      {%- if repository != "pytorch/pytorch" %}
          repository: !{{ repository }}
      {%- endif %}
      {%- if branch %}
          ref: !{{ branch }}
      {%- endif %}
      {%- if directory %}
          path: !{{ directory }}
      {%- endif %}
      - name: Clean !{{ 'PyTorch' if repository == "pytorch/pytorch" else repository }} checkout
        run: |
          # Remove any artifacts from the previous checkouts
          git clean -fxd
      {%- if directory%}
        working-directory: !{{ directory }}
      {%- endif %}
{%- endmacro -%}

{%- macro upload_downloaded_files(name, artifact_name="", use_s3=True, when="always()") -%}
      - name: Zip JSONs for upload
        if: !{{ when }}
        env:
{%- if name == 'linux' or name == 'windows' or name == 'macos' %}
          FILE_SUFFIX: '${{ github.job }}-${{ matrix.config }}-${{ matrix.shard }}-${{ matrix.num_shards }}-${{ matrix.runner }}'
{%- else %}
          FILE_SUFFIX: '!{{ name }}-${{ github.job }}'
{%- endif %}
{%- if name == 'windows' %}
        shell: powershell
        run: |
          # -ir => recursive include all files in pattern
          7z a "test-jsons-$Env:FILE_SUFFIX.zip" -ir'!test\*.json'
{%- else %}
        run: |
          # Remove any previous test jsons if they exist
          rm -f test-jsons-*.zip
          zip -r "test-jsons-${FILE_SUFFIX}.zip" test -i '*.json'
{%- endif %}
{%- if use_s3 %}
      - uses: !{{ upload_artifact_s3_action }}
        name: Store Test Downloaded JSONs on S3
{%- else %}
      - uses: actions/upload-artifact@v2
        name: Store Test Downloaded JSONs on Github
{%- endif %}
        if: !{{ when }}
        with:
{%- if artifact_name != "" %}
          name: !{{ artifact_name }}
{%- endif %}
          retention-days: 14
          if-no-files-found: warn
          path:
            test-jsons-*.zip
{%- endmacro -%}

{%- macro upload_test_reports(name, artifact_name="", use_s3=True) -%}
      - name: Zip test reports for upload
        if: always()
        env:
{%- if name == 'linux' or name == 'windows' or name == 'macos' %}
          FILE_SUFFIX: '${{ github.job }}-${{ matrix.config }}-${{ matrix.shard }}-${{ matrix.num_shards }}-${{ matrix.runner }}'
{%- else %}
          FILE_SUFFIX: '!{{ name }}-${{ github.job }}'
{%- endif %}
{%- if name == 'windows' %}
        shell: powershell
        run: |
          # -ir => recursive include all files in pattern
          7z a "test-reports-$Env:FILE_SUFFIX.zip" -ir'!test\*.xml'
{%- else %}
        run: |
          # Remove any previous test reports if they exist
          rm -f test-reports-*.zip
          zip -r "test-reports-${FILE_SUFFIX}.zip" test -i '*.xml'
{%- endif %}
{%- if use_s3 %}
      - uses: !{{ upload_artifact_s3_action }}
        name: Store Test Reports on S3
{%- else %}
      - uses: actions/upload-artifact@v2
        name: Store Test Reports on Github
{%- endif %}
        if: always()
        with:
{%- if artifact_name != "" %}
          name: !{{ artifact_name }}
{%- endif %}
          retention-days: 14
          if-no-files-found: error
          path:
            test-reports-*.zip
{%- endmacro -%}

{%- macro render_test_results() -%}
      - name: Install render_test_results dependencies
        if: always()
        shell: bash
        run: |
          python3 -m pip install junitparser==2.1.1 rich==10.9.0
      - name: "[[ Click me for rendered test results (useful for finding failing tests) ]]"
        if: always()
        shell: bash
        # Encoding is weird on windows, just try to default to utf-8 if possible
        env:
          PYTHONIOENCODING: "utf-8"
        run: |
          python3 tools/render_junit.py test/
{%- endmacro -%}

{%- macro calculate_docker_image(always_rebuild) -%}
      - name: Calculate docker image tag
        id: calculate-tag
        run: |
          DOCKER_TAG=$(git rev-parse HEAD:.circleci/docker)
          echo "DOCKER_TAG=${DOCKER_TAG}" >> "${GITHUB_ENV}"
          echo "DOCKER_IMAGE=${DOCKER_IMAGE_BASE}:${DOCKER_TAG}" >> "${GITHUB_ENV}"
          echo "::set-output name=docker_tag::${DOCKER_TAG}"
          echo "::set-output name=docker_image::${DOCKER_IMAGE_BASE}:${DOCKER_TAG}"
      - name: Check if image should be built
        id: check
        env:
          BASE_REVISION: ${{ github.event.pull_request.base.sha || github.sha }}
        run: |
          set -x
{%- if not always_rebuild %}
          # Check if image already exists, if it does then skip building it
          if docker manifest inspect "${DOCKER_IMAGE_BASE}:${DOCKER_TAG}"; then
            exit 0
          fi
          if [[ "$BASE_REVISION" = "$(git rev-parse HEAD)" ]]; then
            # if we're on the base branch then use the parent commit
            MERGE_BASE=$(git rev-parse HEAD~)
          else
            # otherwise we're on a PR, so use the most recent base commit
            MERGE_BASE=$(git merge-base HEAD "$BASE_REVISION")
          fi
          # Covers the case where a previous tag doesn't exist for the tree
          # this is only really applicable on trees that don't have `.circleci/docker` at its merge base, i.e. nightly
          if ! git rev-parse "$MERGE_BASE:.circleci/docker"; then
            echo "Directory '.circleci/docker' not found in commit $MERGE_BASE, you should probably rebase onto a more recent commit"
            exit 1
          fi
          PREVIOUS_DOCKER_TAG=$(git rev-parse "$MERGE_BASE:.circleci/docker")
          # If no image exists but the hash is the same as the previous hash then we should error out here
          if [[ "${PREVIOUS_DOCKER_TAG}" = "${DOCKER_TAG}" ]]; then
            echo "ERROR: Something has gone wrong and the previous image isn't available for the merge-base of your branch"
            echo "       contact the PyTorch team to restore the original images"
            exit 1
          fi
{%- endif %}
          echo ::set-output name=rebuild::yes
      - name: Build and push docker image
        if: ${{ steps.check.outputs.rebuild }}
        env:
          DOCKER_SKIP_S3_UPLOAD: 1
        working-directory: .circleci/docker
        run: |
          export IMAGE_NAME=${DOCKER_IMAGE_BASE#308535385114.dkr.ecr.us-east-1.amazonaws.com/pytorch/}
          ./build_docker.sh
{%- endmacro -%}

{%- macro setup_miniconda(python_version, activate_environment=True) -%}
      - name: Setup miniconda
        uses: conda-incubator/setup-miniconda@v2
        with:
          auto-update-conda: true
          python-version: !{{ python_version }}
{%- if activate_environment %}
          activate-environment: build
{%- endif %}
{%- endmacro -%}

{%- macro set_xcode_version(xcode_version) -%}
{%- if xcode_version != '' %}
  # Set xcode xcode version to !{{ xcode_version }}
  DEVELOPER_DIR: /Applications/Xcode_!{{ xcode_version }}.app/Contents/Developer
{%- endif %}
{%- endmacro -%}

{%- macro wait_and_kill_ssh_windows(pytorch_directory="") -%}
      - name: Wait until all sessions have drained
        shell: powershell
{%- if pytorch_directory %}
        working-directory: !{{ pytorch_directory }}
{%- endif %}
        if: always()
        timeout-minutes: 120
        run: |
          .github\scripts\wait_for_ssh_to_drain.ps1
      - name: Kill active ssh sessions if still around (Useful if workflow was cancelled)
        shell: powershell
{%- if pytorch_directory %}
        working-directory: !{{ pytorch_directory }}
{%- endif %}
        if: always()
        run: |
          .github\scripts\kill_active_ssh_sessions.ps1
{%- endmacro -%}