PowerShell/.github/workflows/exp-json.yml

# Copyright (c) Microsoft Corporation.
# Licensed under the MIT license.

name: PowerShell Experimental Features Json Update
on:
    workflow_dispatch:
    schedule:
    # At 13:00 UTC every day.
    - cron:  '0 13 * * *'

defaults:
  run:
    shell: pwsh

env:
  DOTNET_CLI_TELEMETRY_OPTOUT: 1
  POWERSHELL_TELEMETRY_OPTOUT: 1

jobs:
  create-expjson:
    strategy:
      matrix:
        os: [windows-latest, ubuntu-latest]
    timeout-minutes: 15
    runs-on: ${{ matrix.os }}
    env:
      OS_TITLE: ${{ matrix.os }}
    if: github.repository == 'PowerShell/PowerShell'
    name: Update experimental features json
    steps:
      - name: Checkout
        uses: actions/checkout@v2
        with:
          fetch-depth: '0'
      - name: Create experimental features file
        run: |
          Import-Module ./build.psm1 -Force
          Start-PSBootstrap
          Start-PSBuild -Clean -PSModuleRestore
          $builtPwsh = Get-PSOutput

          Write-Verbose -Verbose "PWSH path: $builtPwsh"

          $getExpFeatureJsonScript = @'
            [System.Collections.ArrayList] $expFeatures = Get-ExperimentalFeature | Where-Object Name -NE PS7DscSupport | ForEach-Object -MemberName Name

            # Make sure ExperimentalFeatures from modules in PSHome are added
            # https://github.com/PowerShell/PowerShell/issues/10550
            $ExperimentalFeaturesFromGalleryModulesInPSHome = @()
            $ExperimentalFeaturesFromGalleryModulesInPSHome | ForEach-Object {
                if (!$expFeatures.Contains($_)) {
                    $null = $expFeatures.Add($_)
                }
            }

            ConvertTo-Json $expFeatures
          '@

          $expFeaturesJson = & $builtPwsh -c $getExpFeatureJsonScript
          $osname = $env:OS_TITLE -like 'windows*' ? 'windows' : 'linux'
          $fileNamePrefix = "experimental-feature-$osname"
          $newFileName = "${fileNamePrefix}-new.json"

          Write-Verbose -Verbose 'Experimental features found'
          $expFeaturesJson | Out-String | Write-Verbose -Verbose
          $expFeaturesJson | Out-File $newFileName -Force

      - name: Upload experimental features windows
        uses: actions/upload-artifact@v2
        with:
          name: experimentalJson
          path: experimental-feature-*-new.json

  compare-expjson-files:
    runs-on: ubuntu-latest
    name: Compare experimental json files and create PR
    needs: create-expjson
    steps:
      - name: Checkout
        uses: actions/checkout@v2
        with:
          fetch-depth: '0'
      - name: Download artifacts
        uses: actions/download-artifact@v2
        with:
          name: experimentalJson
      - name: Compare json files
        run: |
          Import-Module ./.github/workflows/GHWorkflowHelper -Force

          function ShouldCreatePR($currentFile, $newFile) {
            if (Test-Path $currentFile) {
              $currentExpFeatures =  Get-Content $currentFile -Raw | ConvertFrom-Json
              $newExpFeatures =  Get-Content $newFile -Raw | ConvertFrom-Json

              if (-not (Compare-Object $currentExpFeatures $newExpFeatures)) {
                  Write-Verbose -Verbose "No changes to experimental features json file"
                  return $false
              }
            }

            return $true
          }

          $currentWinFile = "experimental-feature-windows.json"
          $currentLinuxFile = "experimental-feature-linux.json"
          $newWinFile = "experimental-feature-windows-new.json"
          $newLinuxFile = "experimental-feature-linux-new.json"

          $createPrWin = ShouldCreatePR $currentWinFile $newWinFile
          Write-Verbose -Verbose "Create PR Windows == $createPrWin"

          $createPrLinux = ShouldCreatePR $currentLinuxFile $newLinuxFile
          Write-Verbose -Verbose "Create PR Windows == $createPrLinux"

          $createPr = $createPrWin -or $createPrLinux
          Write-Verbose -Verbose "Create PR == $createPr"

          if ($createPrWin) {
            Move-Item $newWinFile $currentWinFile -Verbose
          }
          else {
            Remove-Item $newWinFile -Verbose
          }

          if ($createPrLinux) {
            Move-Item $newLinuxFile $currentLinuxFile -Verbose
          }
          else {
            Remove-Item $newLinuxFile -Verbose
          }

          Set-GWVariable -Name CREATE_EXP_JSON_PR -Value $createPR

      - name: Create Pull Request
        uses: peter-evans/create-pull-request@v3
        id: cpr
        if: env.CREATE_EXP_JSON_PR == 'true'
        with:
          commit-message: "Update experimental-feature-windows.json"
          title: "Update experimental-feature json files"
          base: master
          branch: expjson_update_windows