fix(webpack): added loading of core appenders

lib/appenders/index.js

@@ -5,6 +5,14 @@ const clustering = require('../clustering');
 const levels = require('../levels');
 const layouts = require('../layouts');
 
+// pre-load the core appenders so that webpack can find them
+const coreAppenders = new Map();
+coreAppenders.set('console', require('./console'));
+coreAppenders.set('stdout', require('./stdout'));
+coreAppenders.set('stderr', require('./stderr'));
+coreAppenders.set('file', require('./file'));
+coreAppenders.set('dateFile', require('./dateFile'));
+
 const appenders = new Map();
 
 const tryLoading = (modulePath, config) => {
@@ -22,10 +30,11 @@ const tryLoading = (modulePath, config) => {
   }
 };
 
-const loadAppenderModule = (type, config) => tryLoading(`./${type}`, config) ||
-    tryLoading(type, config) ||
-    tryLoading(path.join(path.dirname(require.main.filename), type), config) ||
-    tryLoading(path.join(process.cwd(), type), config);
+const loadAppenderModule = (type, config) => coreAppenders.get(type) ||
+  tryLoading(`./${type}`, config) ||
+  tryLoading(type, config) ||
+  tryLoading(path.join(path.dirname(require.main.filename), type), config) ||
+  tryLoading(path.join(process.cwd(), type), config);
 
 const createAppender = (name, config) => {
   const appenderConfig = config.appenders[name];
@@ -64,12 +73,6 @@ const setup = (config) => {
   });
 };
 
-// setup({
-//   appenders: {
-//     stdout: { type: 'stdout' }
-//   }
-// });
-
 configuration.addListener((config) => {
   configuration.throwExceptionIf(
     config,

lib/categories.js

@@ -83,9 +83,6 @@ const setup = (config) => {
   });
 };
 
-// setup({
-//   categories: { default: { appenders: ['stdout'], level: 'OFF' } }
-// });
 configuration.addListener(setup);
 
 const configForCategory = (category) => {

lib/log4js.js

@@ -42,19 +42,6 @@ function sendLogEventToAppender(logEvent) {
   });
 }
 
-/**
- * Get a logger instance.
- * @static
- * @param loggerCategoryName
- * @return {Logger} instance of logger for the category
- */
-function getLogger(category) {
-    if (!enabled) {
-        configure(process.env.LOG4JS_CONFIG || defaultConfig);
-    }
-  return new Logger(category || 'default');
-}
-
 function loadConfigurationFile(filename) {
   if (filename) {
     debug(`Loading configuration from ${filename}`);
@@ -118,6 +105,23 @@ function shutdown(cb) {
   return null;
 }
 
+/**
+ * Get a logger instance.
+ * @static
+ * @param loggerCategoryName
+ * @return {Logger} instance of logger for the category
+ */
+function getLogger(category) {
+  if (!enabled) {
+    configure(process.env.LOG4JS_CONFIG || {
+      appenders: { out: { type: 'stdout' } },
+      categories: { default: { appenders: ['out'], level: 'OFF' } }
+    });
+  }
+  return new Logger(category || 'default');
+}
+
+
 /**
  * @name log4js
  * @namespace Log4js