fix(app): local/global call of ngd

Author: vogloblinsky

src/app/engines/ngd.engine.ts

@@ -1,13 +1,17 @@
 import * as path from 'path';
 import * as Shelljs from 'shelljs';
 
+import { isGlobal } from '../../utilities';
+
 export class NgdEngine {
     constructor() {
 
     }
     renderGraph(filepath:String, outputpath: String, type: String) {
         return new Promise(function(resolve, reject) {
-           Shelljs.exec(path.resolve(__dirname + '/../node_modules/.bin/ngd') + ' -' + type + ' ' + filepath + ' -d ' + outputpath + ' -s -t svg', {
+           let ngdPath = (isGlobal()) ? __dirname + '/../node_modules/.bin/ngd' : __dirname + '/../../.bin/ngd';
+           let finalPath = path.resolve(ngdPath) + ' -' + type + ' ' + filepath + ' -d ' + outputpath + ' -s -t svg'
+           Shelljs.exec(finalPath, {
                silent: true
            }, function(code, stdout, stderr) {
                if(code === 0) {

src/utilities.ts

@@ -23,6 +23,25 @@ export function getNewLineCharacter(options: ts.CompilerOptions): string {
     return carriageReturnLineFeed;
 }
 
+export function isGlobal() {
+	var isGlobal = false;
+
+	if (process.platform === "win32"){
+		var paths = process.env.Path.split (";");
+		for (var i=0; i<paths.length; i++){
+			if (paths[i].indexOf ("npm") !== -1 &&
+					process.mainModule.filename.indexOf (paths[i]) !== -1){
+				isGlobal = true;
+				break;
+			}
+		}
+	}else{
+		isGlobal = process.env._ !== process.execPath;
+	}
+
+	return isGlobal;
+}
+
 export function detectIndent(str, count, indent?): string {
     let stripIndent = function(str: string) {
         const match = str.match(/^[ \t]*(?=\S)/gm);