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| author | Joe Ludwig <[email protected]> | 2013-06-26 15:22:04 -0700 |
|---|---|---|
| committer | Joe Ludwig <[email protected]> | 2013-06-26 15:22:04 -0700 |
| commit | 39ed87570bdb2f86969d4be821c94b722dc71179 (patch) | |
| tree | abc53757f75f40c80278e87650ea92808274aa59 /sp/src/public/loadcmdline.cpp | |
| download | source-sdk-2013-39ed87570bdb2f86969d4be821c94b722dc71179.tar.xz source-sdk-2013-39ed87570bdb2f86969d4be821c94b722dc71179.zip | |
First version of the SOurce SDK 2013
Diffstat (limited to 'sp/src/public/loadcmdline.cpp')
| -rw-r--r-- | sp/src/public/loadcmdline.cpp | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/sp/src/public/loadcmdline.cpp b/sp/src/public/loadcmdline.cpp new file mode 100644 index 00000000..59f40933 --- /dev/null +++ b/sp/src/public/loadcmdline.cpp @@ -0,0 +1,123 @@ +//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: loads additional command line options from a config file
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#include "KeyValues.h"
+#include "tier1/strtools.h"
+#include "FileSystem_Tools.h"
+#include "tier1/utlstring.h"
+
+// So we know whether or not we own argv's memory
+static bool sFoundConfigArgs = false;
+
+//-----------------------------------------------------------------------------
+// Purpose: Parses arguments and adds them to argv and argc
+//-----------------------------------------------------------------------------
+static void AddArguments( int &argc, char **&argv, const char *str )
+{
+ char **args = 0;
+ char *argList = 0;
+ int argCt = argc;
+
+ argList = new char[ Q_strlen( str ) + 1 ];
+ Q_strcpy( argList, str );
+
+ // Parse the arguments out of the string
+ char *token = strtok( argList, " " );
+ while( token )
+ {
+ ++argCt;
+ token = strtok( NULL, " " );
+ }
+
+ // Make sure someting was actually found in the file
+ if( argCt > argc )
+ {
+ sFoundConfigArgs = true;
+
+ // Allocate a new array for argv
+ args = new char*[ argCt ];
+
+ // Copy original arguments, up to the last one
+ int i;
+ for( i = 0; i < argc - 1; ++i )
+ {
+ args[ i ] = new char[ Q_strlen( argv[ i ] ) + 1 ];
+ Q_strcpy( args[ i ], argv[ i ] );
+ }
+
+ // copy new arguments
+ Q_strcpy( argList, str );
+ token = strtok( argList, " " );
+ for( ; i < argCt - 1; ++i )
+ {
+ args[ i ] = new char[ Q_strlen( token ) + 1 ];
+ Q_strcpy( args[ i ], token );
+ token = strtok( NULL, " " );
+ }
+
+ // Copy the last original argument
+ args[ i ] = new char[ Q_strlen( argv[ argc - 1 ] ) + 1 ];
+ Q_strcpy( args[ i ], argv[ argc - 1 ] );
+
+ argc = argCt;
+ argv = args;
+ }
+
+ delete [] argList;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Loads additional commandline arguments from a config file for an app.
+// Filesystem must be initialized before calling this function.
+// keyname: Name of the block containing the key/args pairs (ie map or model name)
+// appname: Keyname for the commandline arguments to be loaded - typically the exe name.
+//-----------------------------------------------------------------------------
+void LoadCmdLineFromFile( int &argc, char **&argv, const char *keyname, const char *appname )
+{
+ sFoundConfigArgs = false;
+
+ assert( g_pFileSystem );
+ if( !g_pFileSystem )
+ return;
+
+ // Load the cfg file, and find the keyname
+ KeyValues *kv = new KeyValues( "CommandLine" );
+
+ char filename[512];
+ Q_snprintf( filename, sizeof( filename ), "%s/cfg/commandline.cfg", gamedir );
+
+ if ( kv->LoadFromFile( g_pFileSystem, filename ) )
+ {
+ // Load the commandline arguments for this app
+ KeyValues *appKey = kv->FindKey( keyname );
+ if( appKey )
+ {
+ const char *str = appKey->GetString( appname );
+ Msg( "Command Line found: %s\n", str );
+
+ AddArguments( argc, argv, str );
+ }
+ }
+
+ kv->deleteThis();
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Cleans up any memory allocated for the new argv. Pass in the app's
+// argc and argv - this is safe even if no extra arguments were loaded.
+//-----------------------------------------------------------------------------
+void DeleteCmdLine( int argc, char **argv )
+{
+ if( !sFoundConfigArgs )
+ return;
+
+ for( int i = 0; i < argc; ++i )
+ {
+ delete [] argv[i];
+ }
+ delete [] argv;
+}
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