Some basic changes to preproces

eng/common/pipelines/templates/steps/verify-links.yml

@@ -10,14 +10,29 @@ parameters:
   BranchReplacementName: "${env:SYSTEM_PULLREQUEST_SOURCECOMMITID}"
 
 steps:
+  - pwsh:
+      $deleted = git ls-files --deleted
+      echo "##vso[task.setvariable variable=deletedFiles]$deleted"
+    displayName: Retrieved deleted files
+    workingDirectory: '${{ parameters.WorkingDirectory }}'
+  - task: PowerShell@2
+    displayName: Retrieved all markdowns to scan
+    inputs:
+      pwsh: true
+      workingDirectory: '${{ parameters.WorkingDirectory }}'
+      filePath: ${{ parameters.ScriptDirectory }}/Scan-files-against-links.ps1
+      arguments: >
+        -gitUrl: $(Build.Repository.Uri)
+        -link $(deletedFiles)
+        -changedMarkdowns ${{ parameters.Urls }}
   - task: PowerShell@2
     displayName: Link verification check
     inputs:
       pwsh: true
       workingDirectory: '${{ parameters.WorkingDirectory }}/${{ parameters.Directory }}'
       filePath: ${{ parameters.ScriptDirectory }}/Verify-Links.ps1
       arguments: >
-        -urls ${{ parameters.Urls }}
+        -urls $(markdownsToScan)
         -rootUrl "file://${{ parameters.WorkingDirectory }}/${{ parameters.Directory }}"
         -recursive: ${{ parameters.Recursive }} 
         -ignoreLinksFile ${{ parameters.IgnoreLinksFile }}

eng/common/scripts/Scan-files-against-links.ps1

@@ -0,0 +1,23 @@
+param (
+    [string] $gitUrl,
+    # These are the files relative paths which has been deleted from PR. Need to scan whether any markdowns include these links
+    [string[]] $links,
+    [string[]] $changedMarkdowns
+)
+$fullPathLinks = @()
+foreach ($link in $links) {
+    $fullPathLinks += ($gitUrl + $link)
+}
+
+$urls = @()
+foreach ($f in (Get-ChildItem -Path ./ -Recurse -Include *.md)) {
+    foreach($l in fullPathLinks) {
+        $content = Get-Content -Path $f -Raw
+        if ($content -match $l) {
+            $urls += $f
+            break
+        }
+    }
+}
+$urls += (git diff origin/${env:SYSTEM_PULLREQUEST_TARGETBRANCH} HEAD --name-only -- '*.md' | Get-Unique)
+echo "##vso[task.setvariable variable=markdownsToScan]$urls"