adding commitHash to site extension builds

Author: brettsam

azure-pipelines.yml

@@ -56,7 +56,7 @@ jobs:
     displayName: "Build artifacts"
     inputs:
       filePath: '$(Build.Repository.LocalPath)\build\build-extensions.ps1'
-      arguments: '-buildNumber "$(buildNumber)" -suffix "$(suffix)"'
+      arguments: '-buildNumber "$(buildNumber)" -suffix "$(suffix)" -commitHash "$(Build.SourceVersion)"'
   - task: CopyFiles@2
     inputs:
       SourceFolder: '$(Build.Repository.LocalPath)\buildoutput'

build/build-extensions.ps1

@@ -1,7 +1,8 @@
 param (
   [string]$buildNumber = "0",
   [string]$extensionVersion = "3.0.$buildNumber",
-  [string]$suffix = ""
+  [string]$suffix = "",
+  [string]$commitHash = "N/A"
 )
 
 $currentDir = Split-Path -Parent $MyInvocation.MyCommand.Path
@@ -51,7 +52,7 @@ function BuildRuntime([string] $targetRid, [bool] $isSelfContained) {
       $suffixCmd = "/p:VersionSuffix=$suffix"
     }
 
-    $cmd = "publish", ".\src\WebJobs.Script.WebHost\WebJobs.Script.WebHost.csproj", "-r", "$targetRid", "--self-contained", "$isSelfContained", "/p:PublishReadyToRun=true", "/p:PublishReadyToRunEmitSymbols=true", "-o", "$publishTarget", "-v", "m", "/p:BuildNumber=$buildNumber", "/p:IsPackable=false", "-c", "Release", $suffixCmd
+    $cmd = "publish", ".\src\WebJobs.Script.WebHost\WebJobs.Script.WebHost.csproj", "-r", "$targetRid", "--self-contained", "$isSelfContained", "/p:PublishReadyToRun=true", "/p:PublishReadyToRunEmitSymbols=true", "-o", "$publishTarget", "-v", "m", "/p:BuildNumber=$buildNumber", "/p:IsPackable=false", "/p:CommitHash=$commitHash", "-c", "Release", $suffixCmd
 
     Write-Host "======================================"
     Write-Host "Building $targetRid"