Microsoft.VSCode.DSC initial implementation

pipelines/azure-pipelines.yml

@@ -72,6 +72,10 @@ extends:
             displayName: 'Publish Pipeline GitDsc'
             targetPath: $(Build.SourcesDirectory)\resources\GitDsc\
             artifactName: GitDsc
+          - output: pipelineArtifact
+            displayName: 'Publish Pipeline Microsoft.VSCode.DSC'
+            targetPath: $(Build.SourcesDirectory)\resources\Microsoft.VSCode.DSC\
+            artifactName: Microsoft.VSCode.DSC
 
         steps:
         - checkout: self

resources/Microsoft.VSCode.DSC/Microsoft.VSCode.DSC.psd1

@@ -0,0 +1,24 @@
+@{
+    RootModule = 'Microsoft.VSCode.DSC.psm1'
+    ModuleVersion = '0.1.0'
+    GUID = 'baf2c585-d931-4089-8500-93a5b8de1741'
+    Author = 'Microsoft Corporation'
+    CompanyName = 'Microsoft Corporation'
+    Copyright = '(c) Microsoft Corporation. All rights reserved.'
+    Description = 'DSC Resource for Visual Studio Code'
+    PowerShellVersion = '7.2'
+    DscResourcesToExport = @(
+        'VSCodeExtension'
+    )
+    PrivateData = @{
+        PSData = @{
+            # Tags applied to this module. These help with module discovery in online galleries.
+            Tags = @(
+                'PSDscResource_VSCodeExtension'
+                )
+
+            # Prerelease string of this module
+            Prerelease = 'alpha'
+        }
+    }
+}

resources/Microsoft.VSCode.DSC/Microsoft.VSCode.DSC.psm1

@@ -0,0 +1,115 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
+$ErrorActionPreference = "Stop"
+Set-StrictMode -Version Latest
+
+enum VSCodeEnsure
+{
+    Absent
+    Present
+}
+
+#region DSCResources
+[DSCResource()]
+class VSCodeExtension
+{
+    [DscProperty(Key)]
+    [string] $Name
+
+    [DscProperty()]
+    [string] $Version
+
+    [DscProperty()]
+    [VSCodeEnsure] $Ensure = [VSCodeEnsure]::Present
+
+    [VSCodeExtension] Get()
+    {
+        $currentState = [VSCodeExtension]::new()
+        $currentState.Ensure = [VSCodeEnsure]::Absent
+        $currentState.Name = $this.Name
+        $currentState.Version = $this.Version
+
+        $installedExtensions = @{}
+        $extensionList = (Invoke-VSCode -Command "--list-extensions --show-versions") -Split [Environment]::NewLine
+
+        # Populate hash table with installed VSCode extensions.
+        foreach ($extension in $extensionList)
+        {
+            $info = $extension -Split '@'
+            $extensionName = $info[0]
+            $extensionVersion = $info[1]
+            $installedExtensions[$extensionName] = $extensionVersion
+        }
+
+        foreach ($extension in $installedExtensions.Keys)
+        {
+            if ($extension -eq $this.Name)
+            {
+                $currentState.Ensure = [VSCodeEnsure]::Present
+                $currentState.Name = $extension
+                $currentState.Version = $installedExtensions[$extension]
+                break
+            }
+        }
+
+        return $currentState
+    }
+
+    [bool] Test()
+    {
+        $currentState = $this.Get()
+        if ($currentState.Ensure -ne $this.Ensure)
+        {
+            return $false
+        }
+
+        if ($null -ne $this.Version -and $this.Version -ne $currentState.Version)
+        {
+            return $false
+        }
+
+        return $true
+    }
+
+    [void] Set()
+    {
+        if ($this.Test())
+        {
+            return
+        }
+
+        if ($this.Ensure -eq [VSCodeEnsure]::Present)
+        {
+            $extensionArg = $this.Name
+
+            if ($null -ne $this.Version)
+            {
+                $extensionArg += "@$($this.Version)"
+            }
+
+            Invoke-VSCode -Command "--install-extension $($extensionArg)"
+        }
+        else
+        {
+            Invoke-VSCode -Command "--uninstall-extension $($this.Name)"
+        }
+    }
+}
+
+function Invoke-VSCode
+{
+    param (
+        [Parameter(Mandatory = $true)]
+        [string]$Command
+    )
+
+    try 
+    {
+        return Invoke-Expression "& `"$env:LocalAppData\Programs\Microsoft VS Code\bin\code.cmd`" $Command"
+    }
+    catch
+    {
+        throw "VSCode is not installed."
+    }
+}