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(function () {
var _config = undefined;
var _debug = false;
function getPlugin(name, filename) {
var ret = null;
try {
if (system.fileTest(filename, FileTest.exists)) {
ret = include(filename);
}
}
catch(e) {
extensions.error(name, "Error in line " + e.line + " parsing " + filename);
}
return ret;
}
function getStack(offset) {
if (arguments.length === 0) {
offset = 0;
}
try {
throw Error (message);
}
catch (e) {
var stack = e.stack.match(/[^\n]+/g);
return "STACK: [" + stack.slice(offset+1).join("] [")+"]";
}
}
Object.defineProperties(extensions, {
"warning" : {
value : function (name, message) {
io.print("\033[1mDWB EXTENSION WARNING: \033[0mextension \033[1m" + name + "\033[0m: " + message, "stderr");
}
},
"enableDebugging" : {
set : function (value) {
if (typeof value == "boolean")
_debug = value;
}
},
"debug" : {
value : function (name, message) {
if (_debug) {
io.print("\033[1mDWB EXTENSION DEBUG: \033[0mextension \033[1m" + name + "\033[0m\n" + getStack(1), "stderr");
}
}
},
"error" : {
value : function (name, a, b) {
var message = "";
if (a instanceof Error) {
if (a.message) {
message = a.message;
}
else if (arguments.length > 2)
message = b;
else
b = "";
io.print("\033[31mDWB EXTENSION ERROR: \033[0mextension \033[1m" + name + "\033[0m in line " + a.line + ": " +
message + "\nSTACK: [" + a.stack.match(/[^\n]+/g).join("] [") + "]", "stderr");
}
else {
io.print("\033[31mDWB EXTENSION ERROR: \033[0mextension \033[1m" + name + "\033[0m: " + a + "\n" + getStack(1), "stderr");
}
}
},
"message" : {
value : function (name, message) {
io.print("\033[1mDWB EXTENSION: \033[0mextension \033[1m" + name + "\033[0m: " + message, "stderr");
}
},
"load" : {
value : function(name, c) {
var boldname = "\033[1m" + name + "\033[0m";
var config, dataBase, pluginPath, plugin = null;
var extConfig = null;
/* Get default config if the config hasn't been read yet */
if (arguments.length == 2) {
extConfig = c;
}
else {
if (_config === undefined) {
try {
config = include(data.configDir + "/extensionrc");
}
catch (e) {
extensions.error(name, "loading config failed : " + e);
}
if (config === null) {
extensions.warning(name, "Could not load config.");
}
else {
_config = config;
}
}
if (_config) {
extConfig = _config[name] || null;
}
}
/* Load extension */
var filename = data.userDataDir + "/extensions/" + name;
plugin = getPlugin(name, data.userDataDir + "/extensions/" + name);
if (plugin === null) {
plugin = getPlugin(name, data.systemDataDir + "/extensions/" + name);
if (plugin === null) {
extensions.error(name, "Couldn't find extension.");
return false;
}
}
try {
if (plugin.init(extConfig)) {
extensions.message(name, "Successfully loaded and initialized.");
return true;
}
else {
extensions.error(name, "Initialization failed.");
return false;
}
}
catch (e) {
extensions.error(name, "Initialization failed: " + e);
return false;
}
}
}
});
})();
Object.freeze(extensions);
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