Utilities: Add update-cpp-test-results utility

This is a small utility that updates the target tests results for the
LibCpp parser and preprocessor regression tests.

It's handy to run after changing something in the output of either the
parser or the preprocessor.

2 files changed, 40 insertions, 0 deletions

diff --git a/Userland/Utilities/CMakeLists.txt b/Userland/Utilities/CMakeLists.txt
index 459e993511..f762d7c23d 100644
--- a/Userland/Utilities/CMakeLists.txt
+++ b/Userland/Utilities/CMakeLists.txt
@@ -190,6 +190,7 @@ target_link_libraries(umount LibMain)
 target_link_libraries(uname LibMain)
 target_link_libraries(uniq LibMain)
 target_link_libraries(unzip LibArchive LibCompress LibMain)
+target_link_libraries(update-cpp-test-results LibCpp LibCore LibMain)
 target_link_libraries(uptime LibMain)
 target_link_libraries(userdel LibMain)
 target_link_libraries(usermod LibMain)
diff --git a/Userland/Utilities/update-cpp-test-results.cpp b/Userland/Utilities/update-cpp-test-results.cpp
new file mode 100644
index 0000000000..51f9aa1e5a
--- /dev/null
+++ b/Userland/Utilities/update-cpp-test-results.cpp
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2022, Itamar S. <itamar8910@gmail.com>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <AK/Format.h>
+#include <AK/LexicalPath.h>
+#include <LibCore/Command.h>
+#include <LibCore/DirIterator.h>
+#include <LibCore/StandardPaths.h>
+#include <LibMain/Main.h>
+
+ErrorOr<int> serenity_main(Main::Arguments)
+{
+    Core::DirIterator parser_tests(LexicalPath::join(Core::StandardPaths::home_directory(), "cpp-tests/parser").string());
+    while (parser_tests.has_next()) {
+        auto cpp_full_path = parser_tests.next_full_path();
+        if (!cpp_full_path.ends_with(".cpp"))
+            continue;
+        auto ast_full_path = cpp_full_path.replace(".cpp", ".ast");
+        outln("{}", cpp_full_path);
+        auto res = Core::command("/bin/sh", { "sh", "-c", String::formatted("cpp-parser {} > {}", cpp_full_path, ast_full_path) }, {});
+        VERIFY(!res.is_error());
+    }
+
+    Core::DirIterator preprocessor_tests(LexicalPath::join(Core::StandardPaths::home_directory(), "cpp-tests/preprocessor").string());
+    while (preprocessor_tests.has_next()) {
+        auto cpp_full_path = preprocessor_tests.next_full_path();
+        if (!cpp_full_path.ends_with(".cpp"))
+            continue;
+        auto ast_full_path = cpp_full_path.replace(".cpp", ".txt");
+        outln("{}", cpp_full_path);
+        auto res = Core::command("/bin/sh", { "sh", "-c", String::formatted("cpp-preprocessor {} > {}", cpp_full_path, ast_full_path) }, {});
+        VERIFY(!res.is_error());
+    }
+
+    return 0;
+}