Fix log write failure when installing port for the first time (#10287)

1 files changed, 8 insertions, 2 deletions

diff --git a/toolsrc/src/vcpkg/build.cpp b/toolsrc/src/vcpkg/build.cpp
index 93b12f391..f6c310415 100644
--- a/toolsrc/src/vcpkg/build.cpp
+++ b/toolsrc/src/vcpkg/build.cpp
@@ -525,8 +525,14 @@ namespace vcpkg::Build
 #else

         const auto& env = System::get_clean_environment();

 #endif

-        auto stdoutlog =

-            paths.buildtrees / action.spec.name() / ("stdout-" + action.spec.triplet().canonical_name() + ".log");

+        auto buildpath = paths.buildtrees / action.spec.name();

+        if (!fs.exists(buildpath))

+        {

+            std::error_code err;

+            fs.create_directory(buildpath, err);

+            Checks::check_exit(VCPKG_LINE_INFO, !err.value(), "Failed to create directory '%s', code: %d", buildpath.u8string(), err.value());

+        }

+        auto stdoutlog = buildpath / ("stdout-" + action.spec.triplet().canonical_name() + ".log");

         std::ofstream out_file(stdoutlog.native().c_str(), std::ios::out | std::ios::binary | std::ios::trunc);

         Checks::check_exit(VCPKG_LINE_INFO, out_file, "Failed to open '%s' for writing", stdoutlog.u8string());

         const int return_code = System::cmd_execute_and_stream_data(