var gulp = require('gulp'),
    gutil = require('gulp-util'),
    uglify = require('gulp-uglify'),
    rename = require("gulp-rename"),
    ngmin = require('gulp-ngmin');

gulp.task('scripts', function() {
    return gulp.src('modal.js').
                pipe(rename('modal.min.js')).
                pipe(ngmin()).
                pipe(uglify({
                    preserveComments: 'some',
                    outSourceMap: true
                })).
                pipe(gulp.dest('.'));
});

gulp.task('default', function() {
    gulp.start('scripts');
});