jobs:
  - job: UploadGitHubRelease
    pool:
      vmImage: ubuntu-16.04

    # Only upload a "nightly" build if this is the scheduled build of the master branch.
    # Even if not uploading a release, do the rest of the release job to ensure that breakage will
    # be noticed faster.
    variables:
      uploadRelease: $[or(
          and(
            eq(variables['Build.SourceBranch'], 'refs/heads/master'),
            eq(variables['Build.Reason'], 'Schedule')
          ),
          eq(variables['WAVM.ForceNightlyRelease'], 'true')
        )]

    steps:
    - checkout: self
      persistCredentials: true

    # Download all the artifacts uploaded by the jobs in the Build stage.
    - task: DownloadPipelineArtifact@2
      displayName: Download artifacts
      inputs:
        buildType: current
        targetPath: $(Build.ArtifactStagingDirectory)

    # Get the today's date for CI builds, or yesterday's date for the 1AM scheduled nightly build.
    # All dates are New York time (the scheduled build is also at 1AM New York time)
    - ${{if not(eq(variables['Build.Reason'], 'Schedule'))}}:
        - bash: echo "##vso[task.setvariable variable=buildDate]$(TZ=America/New_York date +%Y-%m-%d)"
          displayName: Read today's date
    - ${{if eq(variables['Build.Reason'], 'Schedule')}}:
        - bash: echo "##vso[task.setvariable variable=buildDate]$(TZ=America/New_York date --date=yesterday +%Y-%m-%d)"
          displayName: Read yesterday's date

    # Read the version into an job variable.
    - bash: echo "##vso[task.setvariable variable=VERSION]`cat VERSION`"
      displayName: Read WAVM version
      workingDirectory: $(Build.SourcesDirectory)

    # Rename and move the packages we want to add to the release into a separate folder.
    - bash: |
        mkdir -p release
        mv Win64_VS2019_LTO/wavm-package.exe            release/wavm-$(VERSION)-windows.exe
        mv Win64_VS2019_LTO/wavm-package.zip            release/wavm-$(VERSION)-windows.zip
        mv MacOS_StaticLTO/wavm-package.tar.gz          release/wavm-$(VERSION)-macos.tar.gz
        mv Ubuntu1604_Clang_LTO/wavm-package.deb        release/wavm-$(VERSION)-linux.deb
        mv CentOS70_Clang_LTO/wavm-package.rpm          release/wavm-$(VERSION)-linux.rpm
        mv CentOS70_Clang_StaticLTO/wavm-package.tar.gz release/wavm-$(VERSION)-linux.tar.gz
      displayName: Stage release artifacts
      workingDirectory: $(Build.ArtifactStagingDirectory)

    # Check whether this nightly release already exists.
    - bash: |
        # Just fetch the release URL instead of querying the API, since API requests from the
        # Azure Pipelines agents are often rate limited by GitHub.
        #if [[ $(curl --write-out %{http_code} --silent --output /dev/null https://api.github.com/repos/WAVM/WAVM/releases/tags/nightly/$(buildDate)) = 200 ]]
        if [[ $(curl --write-out %{http_code} --silent --output /dev/null https://github.com/WAVM/WAVM/releases/tag/nightly%2F$(buildDate)) = 200 ]]
        then
          echo "##vso[task.setvariable variable=oldReleaseExists]true"
          echo "Found old release with the build's date"
        else
          echo "##vso[task.setvariable variable=oldReleaseExists]false"
          echo "Did not find old release with the build's date"
        fi
      displayName: Check for existing release

    # If there's an old version of this release, delete the old GitHub release.
    - task: GitHubRelease@0
      condition: and(succeeded(), eq(variables.uploadRelease, 'true'), eq(variables.oldReleaseExists, 'true'))
      displayName: Delete old GitHub release
      inputs:
        gitHubConnection: GitHub-WAVM-AzurePipelines
        action: 'delete'
        tag: nightly/$(buildDate)

    # Delete the old tag on GitHub.
    - script: |
        git -c http.extraheader="AUTHORIZATION: basic ***" push origin :nightly/$(buildDate)
      displayName: Delete old GitHub release tag
      condition: and(succeeded(), eq(variables.uploadRelease, 'true'), eq(variables.oldReleaseExists, 'true'))

    # Create a GitHub release containing the artifacts.
    - task: GitHubRelease@0
      displayName: Create GitHub release
      condition: and(succeeded(), eq(variables.uploadRelease, 'true'))
      inputs:
        gitHubConnection: GitHub-WAVM-AzurePipelines
        action: create
        target: $(Build.SourceVersion)
        tagSource: manual
        tag: nightly/$(buildDate)
        title: nightly/$(buildDate)
        assets: $(Build.ArtifactStagingDirectory)/release/*
        releaseNotesSource: input
        releaseNotes: 
        addChangeLog: true
        changeLogCompareToRelease: lastNonDraftReleaseByTag
        changeLogCompareToReleaseTag: nightly[\-/][\d\-]+
        isPreRelease: true