[test purpose]Sync eng/common preprocess 1170

eng/common/scripts/Verify-Links.ps1

@@ -295,6 +295,10 @@ $checkedLinks = @{};
 $badLinks = @{};
 $pageUrisToCheck = new-object System.Collections.Queue
 foreach ($url in $urls) {
+  if (!$url) {
+    LogWarning "There is an empty markdown in the input urls."
+    continue
+  }
   $uri = NormalizeUrl $url  
   $pageUrisToCheck.Enqueue($uri);
 }

eng/common/scripts/get-markdown-files-from-changed-files.ps1

@@ -0,0 +1,47 @@
+param (
+    # The root repo we scaned with.
+    [string[]] $RootRepo = '$PSScriptRoot/../../..',
+    # The target branch to compare with.
+    [string] $targetBranch = "origin/${env:SYSTEM_PULLREQUEST_TARGETBRANCH}"
+)
+$deletedFiles = (git diff $targetBranch HEAD --name-only --diff-filter=D)
+$renamedFiles = (git diff $targetBranch HEAD --diff-filter=R)
+$changedMarkdowns = (git diff $targetBranch HEAD --name-only -- '*.md')
+
+$beforeRenameFiles = @()
+# Retrieve the renamed from files.
+foreach($file in $renamedFiles) {
+    if ($file -match "^rename from (.*)$") {
+        $beforeRenameFiles += $file -replace "^rename from (.*)$", '$1'
+    }
+}
+# A combined list of deleted and renamed files.
+$relativePathLinks = ($deletedFiles + $beforeRenameFiles)
+# Removed the deleted markdowns. 
+$changedMarkdowns = $changedMarkdowns | Where-Object { $deletedFiles -notcontains $_ }
+# Scan all markdowns and find if it contains the deleted or renamed files.
+$markdownContainLinks = @()
+$allMarkdownFiles = Get-ChildItem -Path $RootRepo -Recurse -Include *.md
+foreach ($f in $allMarkdownFiles) {
+    $filePath = $f.ToString()
+    $content = Get-Content -Path $filePath -Raw
+    foreach($l in $relativePathLinks) {
+        if ($content -match $l) {
+            $markdownContainLinks += $filePath
+            break
+        }
+    }
+}
+
+# Convert markdowns path of the PR to absolute path.
+$adjustedReadmes = $changedMarkdowns | Foreach-Object {Resolve-Path $_}
+$markdownContainLinks += $adjustedReadmes
+
+# Get rid of any duplicated ones.
+$allMarkdowns = [string[]]($markdownContainLinks | Sort-Object | Get-Unique)
+
+Write-Host "Here are all markdown files we need to check based on the changed files:"
+foreach ($file in $allMarkdowns) {
+    Write-Host "    $file"
+}
+return $allMarkdowns

eng/pipelines/templates/jobs/archetype-sdk-client.yml

@@ -165,7 +165,7 @@ jobs:
         parameters:
           ${{ if eq(variables['Build.Reason'], 'PullRequest') }}:
             Directory: ''
-            Urls: (git diff origin/${env:SYSTEM_PULLREQUEST_TARGETBRANCH} HEAD --name-only -- '*.md')
+            Urls: (eng/common/scripts/get-markdown-files-from-changed-files.ps1)
           ${{ if ne(variables['Build.Reason'], 'PullRequest') }}:
             Directory: sdk/${{ parameters.ServiceDirectory }}
           CheckLinkGuidance: $true

sdk/template/azure-sdk-template/README.md

@@ -90,5 +90,6 @@ If the package or a related package supports it, include tips for logging or ena
 
 <!-- LINKS -->
 [style-guide-msft]: https://docs.microsoft.com/style-guide/capitalization
+[EventHubProducerAsyncClient]: https://github.com/Azure/azure-sdk-for-java/blob/master/sdk/eventhubs/azure-messaging-eventhubs/src/main/java/com/azure/messaging/eventhubs/EventHubProducerAsyncClient.java
 
 ![Impressions](https://azure-sdk-impressions.azurewebsites.net/api/impressions/azure-sdk-for-java%2Fsdk%2Ftemplate%2Fazure-sdk-template%2FREADME.png)