Simple gulp file for linting and minifying js, compiling sass and deploying all to dist dir

gulpfile.js

var gulp = require('gulp');

var jshint = require('gulp-jshint'),
    sass = require('gulp-sass'),
    concat = require('gulp-concat'),
    uglify = require('gulp-uglify'),
    rename = require('gulp-rename'),
    minifycss = require('gulp-minify-css'),
    del = require('del');

var stylesSrc = 'src/sass',
    stylesDist = 'dist/css';

var scriptSrc = 'src/js',
    scriptDist = 'dist/js';

var htmlSrc = 'src/html',
    htmlDist = 'dist';

var copy = function(src, dest, base) {
    return gulp.src(src, {base: base})
      .pipe(gulp.dest(dest));
};

gulp.task('lint', function() {
    return gulp.src(scriptSrc + '/*.js')
        .pipe(jshint())
        .pipe(jshint.reporter('default'));
});

gulp.task('styles', function() {
    return gulp.src(stylesSrc + '/*.scss')
        .pipe(sass())
        .pipe(gulp.dest(stylesDist))
        .pipe(rename({suffix: '.min'}))
        .pipe(minifycss())
        .pipe(gulp.dest(stylesDist));
});

gulp.task('scripts', function() {
    return gulp.src([scriptSrc + '/router.js', scriptSrc + '/*.js'])
        .pipe(concat('all.js'))
        .pipe(gulp.dest(scriptDist))
        .pipe(rename('all.min.js'))
        .pipe(uglify())
        .pipe(gulp.dest(scriptDist));
});

gulp.task('html', function() {
    return copy(htmlSrc + '/**/*', htmlDist, htmlSrc);
});

gulp.task('clean', function(cb) {
	del([stylesDist, scriptDist], cb);
});

gulp.task('watch', function() {
    gulp.watch(scriptSrc + '/*.js', ['lint', 'scripts']);
    gulp.watch(stylesSrc + '/*.scss', ['styles']);
    gulp.watch(htmlSrc + '/**/*', ['html']);
});

gulp.task('default', ['clean'], function() {
    gulp.start('lint', 'styles', 'scripts', 'html');
});