Merge pull request #10 from browserstack/daemon_mode

added daemon mode, bumped up version

Author: nidhimj22

.gitignore

@@ -2,3 +2,4 @@ bin/
 node_modules/
 npm-debug.log
 local.log
+browserstack.err

lib/Local.js

@@ -1,5 +1,4 @@
 var childProcess = require('child_process'),
-  fs = require('fs'),
   path = require('path'),
   running = require('is-running'),
   LocalBinary = require('./LocalBinary'),
@@ -10,6 +9,7 @@ function Local(){
   this.pid = undefined;
   this.key = process.env.BROWSERSTACK_ACCESS_KEY;
   this.logfile = path.join(process.cwd(), 'local.log');
+  this.opcode = 'start';
   this.exitCallback;
   this.userArgs = [];
 
@@ -27,54 +27,75 @@ function Local(){
       that.binaryPath = binaryPath;
       childProcess.exec('echo "" > ' + that.logfile);
 
-      that.tunnel = childProcess.spawn(binaryPath, that.getBinaryArgs());
-      that.tunnel.on('exit', function(){
-        that.tunnel = undefined;
-        if(that.exitCallback) that.exitCallback();
-      });
-
-      that.stdout = fs.openSync(that.logfile, 'r');
-      var chunkSize = 512,
-        buffer = new Buffer(81920),
-        bytesRead = 0,
-        error = undefined;
-
-      while(true){
-        var bytes = fs.readSync(that.stdout, buffer, bytesRead, chunkSize, bytesRead);
-        if(bytes == 0) continue;
-
-        var buffRead = buffer.slice(bytesRead, bytesRead+bytes);
-        bytesRead += bytes;
+      that.opcode = 'start';
+      that.tunnel = childProcess.execFile(that.binaryPath, that.getBinaryArgs(), function(error, stdout, stderr){
+        if(error) callback(new LocalError(error.toString()));
 
-        var data = buffRead.toString();
+        var data = {};
+        if(stdout)
+          data = JSON.parse(stdout);
+        else if(stderr)
+          data = JSON.parse(stderr);
+        else
+          callback(new LocalError('No output received'));
 
-        if(data.match(that.errorRegex)){
-          fs.closeSync(that.stdout);
-          error = data.match(that.errorRegex)[0].trim();
-          break;
-        }
-
-        if(data.match(that.doneRegex)){
-          fs.closeSync(that.stdout);
-          break;
+        if(data['state'] != 'connected'){
+          callback(new LocalError(data['message']));
+        } else {
+          that.pid = data['pid'];
+          callback();
         }
-      }
+      });
 
-      if(error) throw new LocalError(error);
-      callback();
+      // that.tunnel = childProcess.spawn(binaryPath, that.getBinaryArgs());
+      // that.tunnel.on('exit', function(){
+      //   that.tunnel = undefined;
+      //   if(that.exitCallback) that.exitCallback();
+      // });
+
+      // that.stdout = fs.openSync(that.logfile, 'r');
+      // var chunkSize = 512,
+      //   buffer = new Buffer(81920),
+      //   bytesRead = 0,
+      //   error = undefined;
+
+      // while(true){
+      //   var bytes = fs.readSync(that.stdout, buffer, bytesRead, chunkSize, bytesRead);
+      //   if(bytes == 0) continue;
+
+      //   var buffRead = buffer.slice(bytesRead, bytesRead+bytes);
+      //   bytesRead += bytes;
+
+      //   var data = buffRead.toString();
+
+      //   if(data.match(that.errorRegex)){
+      //     fs.closeSync(that.stdout);
+      //     error = data.match(that.errorRegex)[0].trim();
+      //     break;
+      //   }
+
+      //   if(data.match(that.doneRegex)){
+      //     fs.closeSync(that.stdout);
+      //     break;
+      //   }
+      // }
+
+      // if(error) throw new LocalError(error);
+      // callback();
     });
   };
 
   this.isRunning = function(){
-    return this.tunnel && running(this.tunnel.pid);
+    return this.pid && running(this.pid);
   };
 
   this.stop = function (callback) {
-    if (this.tunnel) {
-      if(callback) this.exitCallback = callback;
-      this.tunnel.kill();
-    }
-    else if(callback) callback();
+    if(!this.pid) return callback();
+    this.opcode = 'stop';
+    this.tunnel = childProcess.execFile(this.binaryPath, this.getBinaryArgs(), function(error){
+      if(error) callback(new LocalError(error.toString()));
+      callback();
+    });
   };
 
   this.addArgs = function(options){
@@ -185,7 +206,7 @@ function Local(){
   };
 
   this.getBinaryArgs = function(){
-    var args = ['-logFile', this.logfile];
+    var args = ['-d', this.opcode, '-logFile', this.logfile];
     if(this.folderFlag)
       args.push(this.folderFlag);
     args.push(this.key);

package.json

@@ -1,6 +1,6 @@
 {
   "name": "browserstack-local",
-  "version": "0.1.0",
+  "version": "0.2.0",
   "description": "Nodejs bindings for BrowserStack Local",
   "engine": "^0.10.44",
   "main": "index.js",

test/local.js

@@ -29,17 +29,15 @@ describe('Local', function () {
 
   it('should throw error on running multiple binary', function (done) {
     this.timeout(60000);
-    bsLocal.start({ 'key': process.env.BROWSERSTACK_ACCESS_KEY }, function(){
+    bsLocal.start({ 'key': process.env.BROWSERSTACK_ACCESS_KEY }, function(error){
       bsLocal_2 = new browserstack.Local();
       var tempLogPath = path.join(process.cwd(), 'log2.log');
-      try{
-        bsLocal_2.start({ 'key': process.env.BROWSERSTACK_ACCESS_KEY, 'logfile': tempLogPath }, function(){});
-      }
-      catch(err){
-        expect(err.toString().trim()).to.equal('LocalError: *** Error: Either another browserstack local client is running on your machine or some server is listening on port 45691');
+
+      bsLocal_2.start({ 'key': process.env.BROWSERSTACK_ACCESS_KEY, 'logfile': tempLogPath }, function(error){
+        expect(error.toString().trim()).to.equal('LocalError: Either another browserstack local client is running on your machine or some server is listening on port 45691');
         fs.unlinkSync(tempLogPath);
         done();
-      }
+      });
     });
   });