added file logger

config.json

@@ -6,6 +6,9 @@
 
 	"db": {
 		"filename": "data/db.sqlite"
+	},
+	"log": {
+		"filename": "kfet.log"
 	}
 }
 

index.js

@@ -4,7 +4,6 @@ const log=require('log').get('index');
 
 // load config
 const config=require('./config');
-log.info("Loaded configuration file");
 
 // load evironment variables
 let env=Object.assign({}, config.env, process.env);
@@ -16,14 +15,17 @@ process.chdir(__dirname);
 // load shared file
 const shared=require('./shared');
 shared.config=function(namespace, key) {
-	return config[namespace][key];
+	return (config[namespace] || {})[key];
 };
 
 // create global event emitter
 const EE=require('events');
 const events=new EE();
 shared.events=events;
 
+// load logger
+require('./src/logger')(shared.config('log', 'filename'), shared.config('log', 'mode'));
+
 // load database
 require('./src/db');
 

package.json

@@ -8,8 +8,8 @@
   },
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1",
-    "start": "node index.js 2>&1 | tee -a kfet.log",
-    "daemon": "nohup node index.js 2>&1 >> kfet.log&"
+    "start": "node index.js",
+    "daemon": "nohup node index.js 2>&1 >/dev/null &"
   },
   "repository": {
     "type": "git",
@@ -28,6 +28,7 @@
     "express-ws": "^4.0.0",
     "log": "^3.2.0",
     "log-node": "^3.2.1",
+    "printf": "^0.5.1",
     "semver": "^5.6.0"
   },
   "devDependencies": {

src/logger.js

@@ -0,0 +1,37 @@
+const log=require('log');
+const emitter=require('log/writer-utils/emitter');
+const levels=require('log/levels');
+const printf=require('printf');
+const fs=require('fs');
+
+let fd;
+module.exports=function(filename, mode) {
+	if(fd) throw new Error("Already open");
+
+	fd=fs.openSync(filename, 'a', mode || 0o755);
+
+	let minLvl=process.env.LOG_LEVEL || 'notice';
+	if(typeof minLvl=='string') minLvl=levels.indexOf(minLvl);
+	if(minLvl<0) minLvl=0;
+
+	emitter.on('log', msg => {
+		if(msg.logger.levelIndex>=minLvl) {
+			let now=new Date();
+			let txt=printf.apply(null, [
+				"%02d/%02d/%d %02d:%02d:%02d %s %s %s\n",
+				now.getDate(),
+				now.getMonth()+1,
+				now.getFullYear(),
+				now.getHours(),
+				now.getMinutes(),
+				now.getSeconds(),
+				msg.logger.level.toUpperCase(),
+				msg.logger.namespace,
+				printf.apply(null, msg.messageTokens)
+			]);
+			fs.writeSync(fd, txt);
+		}
+	});
+
+	process.on('exit', () => fs.closeSync(fd));
+};