Remove direct npm dependency

lib/system/runner/initialize.js

@@ -9,7 +9,6 @@ const crypto      = require('crypto');
 const fs          = require('fs');
 const path        = require('path');
 const Promise     = require('bluebird');
-const npm         = require('npm');
 
 const _           = require('lodash');
 const log4js      = require('log4js');
@@ -146,8 +145,9 @@ function getAppName(app) {
 // Check list of applications, if application is
 // missed - try to install it via npm.
 //
-const installAppsIfMissed = Promise.coroutine(function* (apps) {
-  let appName, appNpmPath;
+const installAppsIfMissed = Promise.coroutine(function* (N, apps) {
+  let appName, appNpmPath,
+      missed = [];
 
   for (let app of apps) {
     if (_.isPlainObject(app)) {
@@ -160,11 +160,22 @@ const installAppsIfMissed = Promise.coroutine(function* (apps) {
     try {
       require.resolve(appName);
     } catch (__) {
-      yield Promise.fromCallback(cb => npm.load({}, cb));
-      /*eslint-disable no-loop-func*/
-      yield Promise.fromCallback(cb => npm.commands.install([ appNpmPath ], cb));
+      missed.push(appNpmPath);
     }
   }
+
+  if (missed.length) {
+    /* eslint-disable no-console */
+    console.log(`Missed apps: ${missed.join(', ')}. Installing...`);
+
+    require('child_process').execSync(
+      `npm install ${missed.join(' ')} --production`,
+      { stdio: 'inherit', cwd: N.mainApp.root }
+    );
+  }
+
+  // in node 6 `require()` for new packages start work in nextTick only.
+  yield Promise.fromCallback(cb => process.nextTick(cb));
 });
 
 
@@ -624,7 +635,7 @@ module.exports = Promise.coroutine(function* (N) {
 
   if (cluster.isMaster) {
     // Ensure all required apps installed before read configs
-    yield installAppsIfMissed(mainConfig.applications || []);
+    yield installAppsIfMissed(N, mainConfig.applications || []);
   }
 
   initConfig(N, mainConfig);

package.json

@@ -56,7 +56,6 @@
     "mdurl": "^1.0.1",
     "mkdirp": "^0.5.1",
     "mz": "^2.5.0",
-    "npm": "^3.10.9",
     "pointer": "^1.0.1",
     "postcss": "^5.2.5",
     "pug": "^2.0.0-beta6",