daml/ci/patch_bazel_windows/compile.yml

# Copyright (c) 2020 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
# SPDX-License-Identifier: Apache-2.0

parameters:
- name: final_job_name

jobs:

- job: patch_bazel_pre_check
  pool:
    name: linux-pool
  steps:
  - checkout: self
  - bash: |
      set -euo pipefail

      CACHE_KEY="$(md5sum $(find ci/patch_bazel_windows -type f) | md5sum | awk '{print $1}')"
      TARGET="patch_bazel_windows/bazel-$CACHE_KEY.zip"
      TARGET_URL="https://daml-binaries.da-ext.net/$TARGET"

      if [ "200" = "$(curl -Is "$TARGET_URL" | head -1 | awk '{print $2}')" ]; then
          SHOULD_RUN=false
      else
          SHOULD_RUN=true
      fi
      setvar() {
          echo "$1: $2"
          echo "##vso[task.setvariable variable=$1;isOutput=true]$2"
      }
      setvar cache_key $CACHE_KEY
      setvar should_run $SHOULD_RUN
      setvar target $TARGET
      setvar target_url $TARGET_URL      
    name: out

- job: patch_bazel_compile
  dependsOn:
    - patch_bazel_pre_check
  variables:
    cache_key: $[ dependencies.patch_bazel_pre_check.outputs['out.cache_key'] ]
    should_run: $[ dependencies.patch_bazel_pre_check.outputs['out.should_run'] ]
    bazel_base_version: 2.1.0
  pool:
    vmImage: windows-2019
  steps:
  - checkout: self
    condition: eq(variables.should_run, 'true')
  - bash: |
      git clone https://github.com/bazelbuild/bazel.git
      cd bazel
      git checkout $(bazel_base_version)
      git apply --ignore-space-change --ignore-whitespace --whitespace=nowarn < ../ci/patch_bazel_windows/patch-bazel      
    condition: eq(variables.should_run, 'true')
  - powershell: |
      choco install msys2 --noprogress --yes
      choco install zip --noprogress --yes      
    condition: eq(variables.should_run, 'true')
  - powershell: |
      C:\tools\msys64\usr\bin\pacman -S zip --noconfirm      
    condition: eq(variables.should_run, 'true')
  - bash: |
      set -euo pipefail
      cd bazel
      bazel build src/main/cpp:client src:package-zip_jdk_minimal -c opt --stamp --embed_label $(bazel_base_version)-patched-$(cache_key)
      # Note (MK) For some reason, the `zip` from chocolatey seems to result in
      # a “zip file structure invalid” error. I’ve tried adding msys to PATH so the Bazel
      # rules pick up `zip` from msys but that broke other things. So for now
      # we skip the final Bazel rule to build the self-extracting exe and instead
      # call `zip` from msys separately.
      /c/tools/msys64/msys2_shell.cmd -defterm -no-start -here -c "cat bazel-bin/src/main/cpp/client.exe bazel-bin/src/package_jdk_minimal.zip > bazel.exe && zip -A bazel.exe"
      mkdir '$(Build.StagingDirectory)\patched-bazel'
      zip bazel.zip bazel.exe
      cp bazel.zip '$(Build.StagingDirectory)\patched-bazel'      
    condition: eq(variables.should_run, 'true')
  - task: PublishPipelineArtifact@1
    inputs:
      targetPath: $(Build.StagingDirectory)/patched-bazel
      artifactName: patched-bazel
    condition: eq(variables.should_run, 'true')

- job: ${{ parameters.final_job_name }}
  dependsOn:
    - patch_bazel_compile
    - patch_bazel_pre_check
  variables:
    cache_key: $[ dependencies.patch_bazel_pre_check.outputs['out.cache_key'] ]
    target: $[ dependencies.patch_bazel_pre_check.outputs['out.target'] ]
    target_url: $[ dependencies.patch_bazel_pre_check.outputs['out.target_url'] ]
    should_run: $[ dependencies.patch_bazel_pre_check.outputs['out.should_run'] ]
  pool:
    name: linux-pool
  steps:
  - task: DownloadPipelineArtifact@2
    inputs:
      artifact: patched-bazel
      path: $(Build.StagingDirectory)/patched-bazel
    condition: eq(variables.should_run, 'true')
  - bash: |
      set -euo pipefail

      SOURCE='$(Build.StagingDirectory)/patched-bazel/bazel.zip'

      GCS_KEY=$(mktemp)
      cleanup() {
          rm -rf $GCS_KEY
      }
      trap cleanup EXIT
      # This will break on external PRs.
      echo "$GOOGLE_APPLICATION_CREDENTIALS_CONTENT" > $GCS_KEY
      gcloud auth activate-service-account --key-file=$GCS_KEY
      BOTO_CONFIG=/dev/null gsutil cp "$SOURCE" "gs://daml-binaries/$(target)"
      echo "url: $(target_url)"
      echo "hash: $(sha256sum "$(Build.StagingDirectory)/patched-bazel/bazel.zip" | awk '{print $1}')"      
    env:
      GOOGLE_APPLICATION_CREDENTIALS_CONTENT: $(GOOGLE_APPLICATION_CREDENTIALS_CONTENT)
    condition: eq(variables.should_run, 'true')