Cleanup old log files on Linux

lib/logs.js

@@ -12,6 +12,8 @@ var gamesLogFolder = {
   arma3_x64: 'Arma 3'
 }
 
+var numberOfLogsToKeep = 20
+
 var Logs = function (config) {
   this.config = config
 
@@ -29,18 +31,16 @@ Logs.generateLogFileName = function (suffix) {
 }
 
 Logs.prototype.delete = function (filename, callback) {
+  callback = callback || function () {}
+
   this.getLogFile(filename, function (err, logFile) {
     if (err) {
-      if (callback) {
-        return callback(err)
-      }
+      return callback(err)
     } else {
       if (logFile && logFile.path) {
         fs.unlink(logFile.path, callback)
       } else {
-        if (callback) {
-          return callback(new Error('File not found'))
-        }
+        return callback(new Error('File not found'))
       }
     }
   })
@@ -141,6 +141,10 @@ Logs.prototype.logServerProcesses = function (serverProcess, headlessClientProce
   headlessClientProcesses.forEach(function (headlessClientProcess, idx) {
     self.logServerProcess(headlessClientProcess, 'hc_' + (idx + 1))
   })
+
+  if (this.config.type === 'linux') {
+    this.cleanupOldLogFiles()
+  }
 }
 
 Logs.prototype.logServerProcess = function (serverProcess, suffix) {
@@ -178,4 +182,19 @@ Logs.prototype.logServerProcess = function (serverProcess, suffix) {
   })
 }
 
+Logs.prototype.cleanupOldLogFiles = function () {
+  var self = this
+
+  self.logFiles(function (err, files) {
+    if (err) {
+      return
+    }
+
+    var oldLogFiles = files.slice(numberOfLogsToKeep)
+    oldLogFiles.forEach(function (logFile) {
+      self.delete(logFile.name)
+    })
+  })
+}
+
 module.exports = Logs