Copy minified Bower dependencies with Gulp (better solution)

gulpfile.js

// Include our plug-ins
var gulp = require('gulp');
var mainBowerFiles = require('main-bower-files');
var exists = require('path-exists').sync;

// Create some task
gulp.task( 'copy-bower-dep', function() {

  // Replace files by their minified version when possible
  var bowerWithMin = mainBowerFiles().map( function(path, index, arr) {
    var newPath = path.replace(/.([^.]+)$/g, '.min.$1');
    return exists( newPath ) ? newPath : path;
  });

  // Copy them to another directory
  gulp.src( bowerWithMin ).pipe( gulp.dest( './target/dist/lib' ));
});