update files

bin/emulator.js

@@ -0,0 +1,136 @@
+/**
+ * Created by nuintun on 2015/11/26.
+ */
+
+'use strict';
+
+var ipc = require('ipc-main');
+
+var util = require('util');
+var EventEmitter = require('events');
+var spawn = require('child_process').spawn;
+
+/**
+ * Emulator
+ * @param name
+ * @param command
+ * @constructor
+ */
+function Emulator(name, command){
+  this.name = name;
+  this.command = command;
+
+  EventEmitter.call(this);
+}
+
+// Inherit functions from `EventEmitter`'s prototype
+util.inherits(Emulator, EventEmitter);
+
+Emulator.prototype = {
+  start: function (){
+    var context = this;
+
+    this.thread = this.exec(this.command)
+      .on('data', function (data){
+        context.emit('data', data);
+      })
+      .on('error', function (error){
+        context.emit('error', error);
+      })
+      .on('close', function (signal){
+        context.emit('close', signal);
+      });
+  },
+  stop: function (){
+    if (this.thread) {
+      this.thread.kill('SIGTERM');
+    }
+  },
+  exec: function (command /*, options, callback*/){
+    var options = normalizeExecArgs.apply(null, arguments);
+
+    // spawn
+    return spawn(options.file, options.args, {
+      cwd: options.cwd,
+      env: options.env,
+      gid: options.gid,
+      uid: options.uid,
+      windowsVerbatimArguments: !!options.windowsVerbatimArguments
+    });
+  }
+};
+
+/**
+ * normalize exec args
+ * @param command
+ * @param options
+ * @returns {{cmd: *, file: *, args: *, options: *}}
+ */
+function normalizeExecArgs(command, options){
+  var file, args;
+
+  // Make a shallow copy before patching so we don't clobber the user's
+  // options object.
+  options = options || options;
+
+  if (process.platform === 'win32') {
+    file = process.env.comspec || 'cmd.exe';
+    args = ['/s', '/c', '"' + command + '"'];
+    options.windowsVerbatimArguments = true;
+  } else {
+    file = '/bin/sh';
+    args = ['-c', command];
+  }
+
+  if (options.shell) {
+    file = options.shell;
+  }
+
+  return {
+    cmd: command,
+    file: file,
+    args: args,
+    options: options
+  };
+}
+
+var cache = {};
+
+module.exports = {
+  Emulator: Emulator,
+  start: function (){
+    ipc.on('emulator', function (event, project, action){
+      switch (action) {
+        case 'start':
+          if (!cache[project.name]) {
+            var emulator = new Emulator(project.command.name, project.command.value);
+            var send = function (type, data){
+              event.sender.send(type, project, data);
+            };
+
+            emulator
+              .on('data', function (data){
+                send('data', data);
+              })
+              .on('error', function (error){
+                send('error', error);
+              })
+              .on('close', function (signal){
+                send('close', signal);
+              });
+
+            cache[project.name] = emulator;
+          }
+          break;
+        case 'stop':
+          if (cache[project.name]) {
+            cache[project.name].stop();
+
+            delete cache[project.name];
+          }
+          break;
+      }
+
+    });
+  }
+};