Fix unused-result warning for chdir

[lugaru.git] / Source / main.cpp

diff --git a/Source/main.cpp b/Source/main.cpp
index 3e37f646a81462aa9666054f6c6e2cfadf2b18ea..cacfabdc99b2a0632e8b759636a39b00d73151d9 100644 (file)
--- a/Source/main.cpp
+++ b/Source/main.cpp
@@ -1,6 +1,6 @@
 /*
 Copyright (C) 2003, 2010 - Wolfire Games
-Copyright (C) 2010-2016 - Lugaru contributors (see AUTHORS file)
+Copyright (C) 2010-2017 - Lugaru contributors (see AUTHORS file)
 
 This file is part of Lugaru.
 
@@ -22,8 +22,9 @@ along with Lugaru.  If not, see <http://www.gnu.org/licenses/>.
 
 #include "Audio/openal_wrapper.hpp"
 #include "Graphic/gamegl.hpp"
-#include "MacCompatibility.hpp"
+#include "Platform/Platform.hpp"
 #include "User/Settings.hpp"
+#include "Version.hpp"
 
 #include <fstream>
 #include <iostream>
@@ -31,14 +32,14 @@ along with Lugaru.  If not, see <http://www.gnu.org/licenses/>.
 #include <set>
 #include <stdio.h>
 #include <string.h>
-#include <zlib.h>
 
 using namespace Game;
 
 #ifdef WIN32
-#include "win-res/resource.hpp"
 #include <shellapi.h>
 #include <windows.h>
+#else
+#include <unistd.h>
 #endif
 
 extern float multiplier;
@@ -578,7 +579,10 @@ static inline void chdirToAppPath(const char* argv0)
                 *ptr = '\0';
         }
 #endif
-        chdir(dir);
+        errno = 0;
+        if (chdir(dir) != 0) {
+            printf("Error changing dir to '%s' (%s).\n", dir, strerror(errno));
+        }
         free(dir);
     }
 }
@@ -588,6 +592,7 @@ const option::Descriptor usage[] =
     {
       { UNKNOWN, 0, "", "", option::Arg::None, "USAGE: lugaru [options]\n\n"
                                                "Options:" },
+      { VERSION, 0, "v", "version", option::Arg::None, " -v, --version     Print version and exit." },
       { HELP, 0, "h", "help", option::Arg::None, " -h, --help        Print usage and exit." },
       { FULLSCREEN, 1, "f", "fullscreen", option::Arg::None, " -f, --fullscreen  Start the game in fullscreen mode." },
       { FULLSCREEN, 0, "w", "windowed", option::Arg::None, " -w, --windowed    Start the game in windowed mode (default)." },
@@ -620,6 +625,23 @@ int main(int argc, char** argv)
         return 1;
     }
 
+    // Always start by printing the version and info to the stdout
+    std::cout << "--------------------------------------------------------------------------\n"
+              << "Lugaru HD: The Rabbit's Foot, by Wolfire Games and the OSS Lugaru project.\n\n"
+              << "Licensed under the GPL 2.0+ and CC-BY-SA 3.0 and 4.0 licenses.\n"
+              << "More information, updates and bug reports at http://osslugaru.gitlab.io\n"
+              << std::endl;
+
+    std::cout << "Version " + VERSION_STRING + " -- " + VERSION_BUILD_TYPE + " build\n"
+              << "--------------------------------------------------------------------------\n"
+              << std::endl;
+
+    if (commandLineOptions[VERSION]) {
+        // That was enough, quit.
+        delete[] commandLineOptionsBuffer;
+        return 0;
+    }
+
     if (commandLineOptions[HELP]) {
         option::printUsage(std::cout, usage);
         delete[] commandLineOptionsBuffer;