1. const { spawn } = require('child_process');
2. const { basename, join, resolve } = require('path');
3.  
4. // Path where the executables of local npm dependencies are.
5. const appRoot = resolve(__dirname, '..');
6.  
7. // General colors
8. const reset = "\x1b[0m";
9.  
10. // Fore ground colors.
11. const fgRed = "\x1b[31m";
12. const fgYellow = "\x1b[33m";
13. const fgGreen = "\x1b[32m";
14. const fgMagenta = "\x1b[35m";
15. const fgCyan = "\x1b[36m";
16.  
17. const gulpSpawn = (cmd, args, done) => {
18.     const stream = spawn(
19.         resolve(__dirname, '../node_modules/.bin', cmd),
20.         args,
21.         { stdio: 'inherit', cwd: appRoot, shell: true }
22.     );
23.     stream.on('exit', (code) => {
24.         const colored = `${fgCyan}${basename(cmd)} ${args.join(' ')}${reset}`;
25.         console.log(`\nChild process [ ${colored} ] exited with code ${code}\n`);
26.        
27.         if (code !== 0) {
28.             process.exit(code);
29.         }
30.  
31.         done();
32.     });
33. };
34.  
35. module.exports.gulpSpawn = gulpSpawn;
36.