Running PowerShell Preview or Daily in CI

.azure-pipelines-ci/ci.yaml

@@ -27,22 +27,40 @@ stages:
           matrix:
             Ubuntu_16_04:
               vmImage: ubuntu-16.04
+            Ubuntu_16_04_PSPreview:
+              vmImage: ubuntu-16.04
+              PowerShellVersion: Preview
             Ubuntu_18_04:
               vmImage: ubuntu-18.04
+            Ubuntu_18_04_PSPreview:
+              vmImage: ubuntu-18.04
+              PowerShellVersion: Preview
             macOS_10_14_Mojave:
               vmImage: macOS-10.14
+            macOS_10_14_PSPreview:
+              vmImage: macOS-10.14
+              PowerShellVersion: Preview
             macOS_10_15_Catalina:
               vmImage: macOS-10.15
-            Windows_Server2016_PowerShell_Core:
+            macOS_10_15_PSPreview:
+              vmImage: macOS-10.15
+              PowerShellVersion: Preview
+            Win2016:
               vmImage: vs2017-win2016
-            Windows_Server2019_PowerShell_Core:
-              vmImage: windows-2019
-            Windows_Server2016_PowerShell_5_1:
+            Win2016_PSPreview:
+              vmImage: vs2017-win2016
+              PowerShellVersion: Preview
+            Win2016_PowerShell_5_1:
               vmImage: vs2017-win2016
-              pwsh: false
-            Windows_Server2019_PowerShell_5_1:
+              PowerShellVersion: WindowsPowerShell
+            Win2019:
+              vmImage: windows-2019
+            Win2019_PSPreview:
+              vmImage: windows-2019
+              PowerShellVersion: Preview
+            Win2019_PS5:
               vmImage: windows-2019
-              pwsh: false
+              PowerShellVersion: WindowsPowerShell
         pool:
           vmImage: $[ variables['vmImage'] ]
         steps:

.azure-pipelines-ci/templates/test.yaml

@@ -1,19 +1,35 @@
 parameters:
-- name: pwsh
-  type: boolean
-  default: true
+- name: PowerShellVersion
+  type: string
+  default: LTS
+  values:
+    - WindowsPowerShell
+    - LTS
+    - Preview
 
 steps:
 - task: DownloadPipelineArtifact@2
   displayName: 'Download Pipeline Artifact: out Folder'
   inputs:
     artifactName: out
     targetPath: '$(Build.SourcesDirectory)/out'
+- pwsh: |
+    Write-Host "Installing PowerShell Preview..."
+    # Use `AGENT_TEMPDIRECTORY` to make sure the downloaded PowerShell is cleaned up.
+    $powerShellPath = Join-Path -Path $env:AGENT_TEMPDIRECTORY -ChildPath 'powershell'
+    Invoke-WebRequest -Uri https://aka.ms/install-powershell.ps1 -OutFile ./install-powershell.ps1
+    ./install-powershell.ps1 -Destination $powerShellPath -Daily
+    # Using `prependpath` to update the PATH just for this build.
+    Write-Host "##vso[task.prependpath]$powerShellPath"
+  displayName: Install PowerShell Daily
+  condition: eq(variables['PowerShellVersion'], 'Preview')
+- pwsh: '$PSVersionTable'
+  displayName: Display PowerShell version information
 - task: PowerShell@2
   displayName: 'Test'
   inputs:
     targetType: inline
-    pwsh: ${{ parameters.pwsh }}
+    pwsh: ne(variables['PowerShellVersion'], 'WindowsPowerShell')
     script: |
       Import-Module .\tools\appveyor.psm1
       Invoke-AppveyorTest -CheckoutPath $env:BUILD_SOURCESDIRECTORY