Sync eng/common directory with azure-sdk-tools for PR 8158 (#39906)

* allow an override FILE to be honored by test-proxy-tool
* update local test-framework to honor proxy override version by default

---------

Co-authored-by: Scott Beddall (from Dev Box) <scbedd@microsoft.com>

eng/common/testproxy/test-proxy-tool.yml

@@ -22,7 +22,17 @@ steps:
       pwsh: true
 
   - pwsh: |
-      $version = $(Get-Content "${{ parameters.templateRoot }}/eng/common/testproxy/target_version.txt" -Raw).Trim()
+      $standardVersion = "${{ parameters.templateRoot }}/eng/common/testproxy/target_version.txt"
+      $overrideVersion = "${{ parameters.templateRoot }}/eng/target_proxy_version.txt"
+
+      $version = $(Get-Content $standardVersion -Raw).Trim()
+
+      if (Test-Path $overrideVersion) {
+        $version = $(Get-Content $overrideVersion -Raw).Trim()
+      }
+
+      Write-Host "Installing test-proxy version $version"
+
       dotnet tool install azure.sdk.tools.testproxy `
         --tool-path $(Build.BinariesDirectory)/test-proxy `
         --add-source https://pkgs.dev.azure.com/azure-sdk/public/_packaging/azure-sdk-for-net/nuget/v3/index.json `

eng/target_proxy_version.txt

@@ -0,0 +1 @@
+1.0.0-dev.20240410.1

sdk/core/azure-core-test/src/main/java/com/azure/core/test/utils/TestProxyUtils.java

@@ -238,10 +238,17 @@ public static void checkForTestProxyErrors(HttpResponse httpResponse) {
      */
     public static String getTestProxyVersion(Path testClassPath) {
         Path rootPath = TestUtils.getRepoRootResolveUntil(testClassPath, "eng");
+        Path overrideVersionFile = Paths.get("eng", "target_proxy_version.txt");
         Path versionFile = Paths.get("eng", "common", "testproxy", "target_version.txt");
-        rootPath = rootPath.resolve(versionFile);
+
+        // if a long-lived override exists, use it.
+        if (Files.exists(rootPath.resolve(overrideVersionFile))) {
+            versionFile = overrideVersionFile;
+        }
+
+        Path versionFilePath = rootPath.resolve(versionFile);
         try {
-            return Files.readAllLines(rootPath).get(0).replace(System.getProperty("line.separator"), "");
+            return Files.readAllLines(versionFilePath).get(0).replace(System.getProperty("line.separator"), "");
         } catch (IOException e) {
             throw new UncheckedIOException(e);
         }