Log client's IP when running build / restore operations

eng/common/build.sh

@@ -187,6 +187,7 @@ function InitializeCustomToolset {
 }
 
 function Build {
+  TryLogClientIpAddress
   InitializeToolset
   InitializeCustomToolset
 

eng/common/sdk-task.ps1

@@ -83,6 +83,7 @@ try {
   }
 
   if ($restore) {
+    Try-LogClientIpAddress
     Build 'Restore'
   }
 

eng/common/tools.ps1

@@ -154,6 +154,9 @@ function InitializeDotNetCli([bool]$install, [bool]$createSdkLocationFile) {
     return $global:_DotNetInstallDir
   }
 
+  # In case of network error, try to log the current IP for reference
+  Try-LogClientIpAddress
+
   # Don't resolve runtime, shared framework, or SDK from other locations to ensure build determinism
   $env:DOTNET_MULTILEVEL_LOOKUP=0
 
@@ -872,3 +875,21 @@ if (!$disableConfigureToolsetImport) {
     }
   }
 }
+
+function Try-LogClientIpAddress()
+{
+    Write-Host "Attempting to log this client's IP for Azure Package feed telemetry purposes"
+    try
+    {
+        $result = Invoke-WebRequest -Uri "http://co1.msedge.net/fdv2/diagnostics.aspx" -UseBasicParsing
+        $lines = $result.Content.Split([Environment]::NewLine) 
+        $socketIp = $lines | Select-String -Pattern "^Socket IP:.*"
+        Write-Host $socketIp
+        $clientIp = $lines | Select-String -Pattern "^Client IP:.*"
+        Write-Host $clientIp
+    }
+    catch
+    {
+        Write-Host "Unable to get this machine's effective IP address for logging: $_"
+    }
+}

eng/common/tools.sh

@@ -399,6 +399,13 @@ function StopProcesses {
   return 0
 }
 
+function TryLogClientIpAddress () {
+  echo 'Attempting to log this client''s IP for Azure Package feed telemetry purposes'
+  if command -v curl > /dev/null; then
+    curl -s 'http://co1.msedge.net/fdv2/diagnostics.aspx' | grep ' IP: '
+  fi
+}
+
 function MSBuild {
   local args=$@
   if [[ "$pipelines_log" == true ]]; then