Method doScript

src/ofxLua.cpp:154–219

------------------------------------------------------------------------------

//------------------------------------------------------------------------------
bool ofxLua::doScript(const std::string& script, bool changeDir) {

	if(!isValid()) {
		ofLogError("ofxLua") << "Cannot do script, lua state not inited!";
		return false;
	}
	
	std::string fullpath = ofFilePath::getAbsolutePath(ofToDataPath(script));
	std::string file = ofFilePath::getFileName(fullpath);
	std::string folder = ofFilePath::getEnclosingDirectory(fullpath);
	
	// trim trailing slash
	if(folder.size() > 0 && folder.at(folder.size()-1) == '/') {
		folder.erase(folder.end()-1);
	}
	
	ofLogVerbose("ofxLua") << "Doing script: \"" << file << "\" path: \"" << folder << "\"";
	if(changeDir) {
		ofLogVerbose("ofxLua") << "Changing to script dir \"" << folder << "\"";
		if(CHDIR(folder.c_str()) < 0) {
			switch(errno) {
				case ENOENT:
					ofLogError("ofxLua") << "Script dir \"" << folder << "\" does not exist";
					break;
				case EACCES:
					ofLogError("ofxLua") << "Could not access script dir \"" << folder << "\"";
					break;
				default:
					ofLogError("ofxLua") << "Could not change to script dir \"" << folder << "\", error " << errno;
					break;
			}
		}
	}

	// load the script
	int ret = luaL_loadfile(L, fullpath.c_str());
	if(ret != 0) {
		switch(ret) {
			case LUA_ERRFILE: {
				std::string msg = (std::string)"Script \""+file+"\" not found or unreadable";
				errorOccurred(msg);
				break;
			}
			case LUA_ERRSYNTAX: {
				std::string msg = (std::string) lua_tostring(L, LUA_STACK_TOP);
				errorOccurred(msg);
				break;
			}
			case LUA_ERRMEM: {
				std::string msg = "Memory error for script \""+file+"\"";
				errorOccurred(msg);
				break;
			}
		}
		return false;
	}
	
	// run the script