storage/local: remove utf8 path from constructor

src/Main.cxx

@@ -162,10 +162,7 @@ InitStorage(Error &error)
 	path_fs.ChopSeparators();
 	CheckDirectoryReadable(path_fs);
 
-	const auto utf8 = path_fs.ToUTF8();
-	assert(!utf8.empty());
-
-	instance->storage = CreateLocalStorage(utf8.c_str(), path_fs);
+	instance->storage = CreateLocalStorage(path_fs);
 	return true;
 }
 

src/storage/plugins/LocalStorage.cxx

@@ -50,12 +50,15 @@ public:
 };
 
 class LocalStorage final : public Storage {
-	const std::string base_utf8;
 	const AllocatedPath base_fs;
+	const std::string base_utf8;
 
 public:
-	LocalStorage(const char *_base_utf8, Path _base_fs)
-		:base_utf8(_base_utf8), base_fs(_base_fs) {}
+	explicit LocalStorage(Path _base_fs)
+		:base_fs(_base_fs), base_utf8(base_fs.ToUTF8()) {
+		assert(!base_fs.IsNull());
+		assert(!base_utf8.empty());
+	}
 
 	/* virtual methods from class Storage */
 	virtual bool GetInfo(const char *uri_utf8, bool follow, FileInfo &info,
@@ -203,7 +206,7 @@ LocalDirectoryReader::GetInfo(bool follow, FileInfo &info, Error &error)
 }
 
 Storage *
-CreateLocalStorage(const char *base_utf8, Path base_fs)
+CreateLocalStorage(Path base_fs)
 {
-	return new LocalStorage(base_utf8, base_fs);
+	return new LocalStorage(base_fs);
 }

src/storage/plugins/LocalStorage.hxx

@@ -28,6 +28,6 @@ class Path;
 
 gcc_malloc gcc_nonnull_all
 Storage *
-CreateLocalStorage(const char *base_utf8, Path base_fs);
+CreateLocalStorage(Path base_fs);
 
 #endif

test/test_translate_song.cxx

@@ -38,9 +38,8 @@ uri_supported_scheme(const char *uri)
 	return memcmp(uri, "http://", 7) == 0;
 }
 
-const char *const music_directory = "/music";
-static Storage *const storage = CreateLocalStorage(music_directory,
-						   Path::FromFS(music_directory));
+static const char *const music_directory = "/music";
+static Storage *storage;
 
 static void
 BuildTag(gcc_unused TagBuilder &tag)
@@ -308,6 +307,8 @@ CPPUNIT_TEST_SUITE_REGISTRATION(TranslateSongTest);
 int
 main(gcc_unused int argc, gcc_unused char **argv)
 {
+	storage = CreateLocalStorage(Path::FromFS(music_directory));
+
 	CppUnit::TextUi::TestRunner runner;
 	auto &registry = CppUnit::TestFactoryRegistry::getRegistry();
 	runner.addTest(registry.makeTest());