From 06f587714bfef58adc608f72662bf5ea2df00ee8 Mon Sep 17 00:00:00 2001
From: Björn Steinbrink <B.Steinbrink@gmx.de>
Date: Fri, 19 Aug 2005 13:46:58 +0000
Subject: Added support for parsing command line options. Added option to skip
 the update process. Made the logger being created immediately after start,
 because some destructors use it.

---
 src/log.cpp  | 18 ++++++++---------
 src/log.h    |  8 ++++----
 src/main.cpp | 66 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++--
 3 files changed, 77 insertions(+), 15 deletions(-)

(limited to 'src')

diff --git a/src/log.cpp b/src/log.cpp
index 07c12516..3222c856 100644
--- a/src/log.cpp
+++ b/src/log.cpp
@@ -29,22 +29,22 @@
 #include <sstream>
 
 
-Logger::Logger(const std::string &logFilename)
+Logger::~Logger()
 {
-    logFile.open(logFilename.c_str(), std::ios_base::trunc);
-
-    if (!logFile.is_open())
+    if (logFile.is_open())
     {
-        std::cout << "Warning: error while opening " << logFilename <<
-            " for writing.\n";
+        logFile.close();
     }
 }
 
-Logger::~Logger()
+void Logger::setLogFile(const std::string &logFilename)
 {
-    if (logFile.is_open())
+    logFile.open(logFilename.c_str(), std::ios_base::trunc);
+
+    if (!logFile.is_open())
     {
-        logFile.close();
+        std::cout << "Warning: error while opening " << logFilename <<
+            " for writing.\n";
     }
 }
 
diff --git a/src/log.h b/src/log.h
index 9f6988c0..297df88f 100644
--- a/src/log.h
+++ b/src/log.h
@@ -32,14 +32,14 @@ class Logger
 {
     public:
         /**
-         * Constructor, opens log file for writing.
+         * Destructor, closes log file.
          */
-        Logger(const std::string &logFilename);
+        ~Logger();
 
         /**
-         * Destructor, closes log file.
+         * Sets the file to log to and opens it
          */
-        ~Logger();
+        void setLogFile(const std::string &logFilename);
 
         /**
          * Enters a message in the log. The message will be timestamped.
diff --git a/src/main.cpp b/src/main.cpp
index 42212b25..d2a8d964 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -23,8 +23,10 @@
 
 #include "main.h"
 
+#include <getopt.h>
 #include <iostream>
 #include <physfs.h>
+#include <unistd.h>
 #include <SDL_image.h>
 
 #include <guichan/sdl/sdlinput.hpp>
@@ -153,8 +155,8 @@ void init_engine()
     }
 #endif
 
-    // Initialize logger
-    logger = new Logger(homeDir + std::string("/tmw.log"));
+    // Set log file
+    logger->setLogFile(homeDir + std::string("/tmw.log"));
 
     ResourceManager *resman = ResourceManager::getInstance();
 
@@ -331,9 +333,65 @@ int exists(const std::string &file)
     }
 }
 
+struct Options
+{
+    Options():printHelp(false),skipUpdate(false) {};
+
+    bool printHelp;
+    bool skipUpdate;
+};
+
+void printHelp()
+{
+    std::cout << "tmw" << std::endl << std::endl;
+    std::cout << "Options: " << std::endl;
+    std::cout << "  -h --help       : Display this help" << std::endl;
+    std::cout << "     --skipupdate : Skip the update process" << std::endl;
+}
+
+void parseOptions(int argc, char *argv[], Options &options)
+{
+    const char *optstring = "h";
+
+    const struct option long_options[] = {
+        { "help",       no_argument, 0, 'h' },
+        { "skipupdate", no_argument, 0, 'u' },
+        0
+    };
+
+    while (optind < argc) {
+        int result = getopt_long(argc, argv, optstring, long_options, NULL);
+
+        if (result == -1) {
+            break;
+        }
+
+        switch (result) {
+            default: // Unknown option
+            case 'h':
+                options.printHelp = true;
+                break;
+            case 'u':
+                options.skipUpdate = true;
+                break;
+        }
+    }
+}
+
 /** Main */
 int main(int argc, char *argv[])
 {
+    logger = new Logger();
+
+    Options options;
+
+    parseOptions(argc, argv, options);
+
+    if (options.printHelp) {
+        printHelp();
+        return 0;
+    }
+
     UpdaterWindow *uw;
 
     // Initialize libxml2 and check for potential ABI mismatches between
@@ -352,6 +410,10 @@ int main(int argc, char *argv[])
 
     SDL_Event event;
 
+    if (options.skipUpdate && state != ERROR) {
+        state = LOGIN;
+    }
+
     while (state != EXIT)
     {
         // Handle SDL events
-- 
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