Changed: Under Linux, it's recommended to put user application data in ~/.local/share

--HG--
branch : develop

code/nel/src/misc/path.cpp

@@ -1784,7 +1784,9 @@ std::string CPath::getApplicationDirectory(const std::string &appName, bool loca
 std::string CFileContainer::getApplicationDirectory(const std::string &appName, bool local)
 {
 	static std::string appPaths[2];
+
 	std::string &appPath = appPaths[local ? 1 : 0];
+
 	if (appPath.empty())
 	{
 #ifdef NL_OS_WINDOWS
@@ -1800,26 +1802,21 @@ std::string CFileContainer::getApplicationDirectory(const std::string &appName,
 			SHGetSpecialFolderPathW(NULL, buffer, CSIDL_APPDATA, TRUE);
 		}
 		appPath = CPath::standardizePath(wideToUtf8(buffer));
-#elif defined(NL_OS_MAC)
-		appPath = CPath::standardizePath(getenv("HOME"));
-		appPath += "/Library/Application Support/";
 #else
-		appPath = CPath::standardizePath(getenv("HOME"));
-#endif
-	}
+		// get user home directory from HOME environment variable
+		const char* homePath = getenv("HOME");
+		appPath = CPath::standardizePath(homePath ? homePath : ".");
 
-	std::string path = appPath;
-#ifdef NL_OS_WINDOWS
-	if (!appName.empty())
-		path = CPath::standardizePath(path + appName);
-#elif defined(NL_OS_MAC)
-	path = CPath::standardizePath(path + appName);
+#if defined(NL_OS_MAC)
+		appPath += "Library/Application Support/";
 #else
-	if (!appName.empty())
-		path = CPath::standardizePath(path + "." + toLower(appName));
+		// recommended for applications data that are owned by user
+		appPath += ".local/share/";
+#endif
 #endif
+	}
 
-	return path;
+	return CPath::standardizePath(appPath + appName);
 }
 
 std::string CPath::getTemporaryDirectory()