Editing asset cache output when using x-script (#1541)

* improve messaging for x-script

* add newlines @ EOF

* format

* respond to Billy feedback

* test order of messaging

---------

Co-authored-by: Javier Matos <javiermatos@Javiers-Laptop.local>

azure-pipelines/e2e-assets/asset-caching/failing-script.ps1

@@ -0,0 +1 @@
+throw "Script download error"

azure-pipelines/end-to-end-tests-dir/asset-caching.ps1

@@ -197,3 +197,31 @@ $actual = Run-VcpkgAndCaptureOutput -TestArgs ($commonArgs + @("x-download", "$d
 if (-not ($actual.Contains("Asset cache hit for example3.html; downloaded from: file://$AssetCache"))) {
     throw "Failure: azurl (yes), x-block-origin (yes), asset-cache (hit), download (n/a)"
 }
+
+# Testing x-download failure with asset cache (x-script) and x-block-origin settings
+$env:X_VCPKG_ASSET_SOURCES = "clear;x-script,pwsh $PSScriptRoot/../e2e-assets/asset-caching/failing-script.ps1 {url} {sha512} {dst};x-block-origin"
+$actual = Run-VcpkgAndCaptureOutput -TestArgs ($commonArgs + @("x-download", "$downloadsRoot/example3.html", "--url", "https://example.com", "--sha512", "d06b93c883f8126a04589937a884032df031b05518eed9d433efb6447834df2596aebd500d69b8283e5702d988ed49655ae654c1683c7a4ae58bfa6b92f2b73a"))
+# Check for the expected messages in order
+$expectedOrder = @(
+    "error: <mirror-script> failed with exit code: (1).",
+    "error: Missing example3.html and downloads are blocked by x-block-origin."
+)
+
+# Verify order
+$index = 0
+foreach ($message in $expectedOrder) {
+    $index = $actual.IndexOf($message, $index)
+    if ($index -lt 0) {
+        throw "Failure: Expected message '$message' not found in the correct order."
+    }
+    $index += $message.Length
+}
+
+# Testing x-download success with asset cache (x-script) and x-block-origin settings
+Refresh-TestRoot
+$env:X_VCPKG_ASSET_SOURCES = "clear;x-script,$TestScriptAssetCacheExe {url} {sha512} {dst};x-block-origin"
+$actual = Run-VcpkgAndCaptureOutput -TestArgs ($commonArgs + @("x-download", "$downloadsRoot/example3.html", "--url", "https://example.com/hello-world.txt", "--sha512", "09e1e2a84c92b56c8280f4a1203c7cffd61b162cfe987278d4d6be9afbf38c0e8934cdadf83751f4e99d111352bffefc958e5a4852c8a7a29c95742ce59288a8"))
+if (-not ($actual.Contains("Successfully downloaded example3.html."))) {
+    throw "Failure: x-script download success message"
+}
+

src/vcpkg/base/downloads.cpp

@@ -974,6 +974,7 @@ namespace vcpkg
                     RedirectedProcessLaunchSettings settings;
                     settings.environment = get_clean_environment();
                     settings.echo_in_debug = EchoInDebug::Show;
+
                     auto maybe_res = flatten(cmd_execute_and_capture_output(cmd, settings), "<mirror-script>");
                     if (maybe_res)
                     {
@@ -982,14 +983,14 @@ namespace vcpkg
                         if (maybe_success)
                         {
                             fs.rename(download_path_part_path, download_path, VCPKG_LINE_INFO);
+                            msg::println(msgDownloadSuccesful, msg::path = download_path.filename());
                             return urls[0];
                         }
-
-                        errors.push_back(std::move(maybe_success).error());
+                        msg::println_error(maybe_success.error());
                     }
                     else
                     {
-                        errors.push_back(std::move(maybe_res).error());
+                        msg::println_error(maybe_res.error());
                     }
                 }
             }