fix #1021, always check if files exist

Util/IniFileUtil.h

@@ -28,6 +28,8 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #ifndef INI_FILE_UTIL_H
 #define INI_FILE_UTIL_H
 
+#include "SimpleLogger.h"
+
 #include <boost/filesystem.hpp>
 #include <boost/filesystem/fstream.hpp>
 
@@ -40,9 +42,19 @@ inline std::string ReadIniFileAndLowerContents(const boost::filesystem::path &pa
     boost::filesystem::fstream config_stream(path);
     std::string input_str((std::istreambuf_iterator<char>(config_stream)),
                           std::istreambuf_iterator<char>());
-    std::regex regex("^([^=]*)"); // match from start of line to '='
-    std::string format("\\L$1\\E"); // replace with downcased substring
-    return std::regex_replace(input_str, regex, format);
+    std::regex regex("\\w+=");
+
+    std::string output = input_str;
+    const std::sregex_token_iterator end;
+    for (std::sregex_token_iterator i(input_str.begin(), input_str.end(), regex); i != end; ++i)
+    {
+        std::string match = *i;
+        std::string new_regex = *i;
+        std::transform(new_regex.begin(), new_regex.end(), new_regex.begin(), ::tolower);
+        SimpleLogger().Write() << match << " - " << new_regex;
+        output = std::regex_replace(output, std::regex(match), new_regex);
+    }
+    return output;
 }
 
 #endif // INI_FILE_UTIL_H

Util/ProgramOptions.h

@@ -150,6 +150,7 @@ inline unsigned GenerateServerProgramOptions(const int argc,
 
     // parse config file
     ServerPaths::iterator path_iterator = paths.find("config");
+    bool use_ini_file = false;
     if (path_iterator != paths.end() && boost::filesystem::is_regular_file(path_iterator->second) &&
         !option_variables.count("base"))
     {
@@ -159,6 +160,8 @@ inline unsigned GenerateServerProgramOptions(const int argc,
         boost::program_options::store(parse_config_file(config_stream, config_file_options),
                                       option_variables);
         boost::program_options::notify(option_variables);
+        use_ini_file = true;
+        return INIT_OK_START_ENGINE;
     }
 
     if (1 > requested_num_threads)