Gulp: Gulpfile with Bower and Bootstrap

gulpfile.js

// Include gulp
var gulp = require('gulp'); 

// Include Our Plugins
var jshint = require('gulp-jshint');
var sass = require('gulp-sass');
var concat = require('gulp-concat');
var uglify = require('gulp-uglify');
var rename = require('gulp-rename');

// Lint Task
gulp.task('lint', function() {
    return gulp.src('_assets/components/js/*.js')
        .pipe(jshint())
        .pipe(jshint.reporter('default'));
});

// Compile Our Sass
gulp.task('sass', function() {
    return gulp.src('_assets/components/scss/*.scss')
        .pipe(sass())
        .pipe(gulp.dest('_assets/css'));
});

// Concatenate & Minify JS
gulp.task('scripts', function() {
    return gulp.src([
        './bower_components/jquery/dist/jquery.js',
        './bower_components/bootstrap-sass-official/assets/javascripts/bootstrap.js',
        '_assets/components/js/*.js'])
        .pipe(concat('all.js'))
        .pipe(gulp.dest('_assets/js'))
        .pipe(rename('all.min.js'))
        .pipe(uglify())
        .pipe(gulp.dest('_assets/js'));
});

// Watch Files For Changes
gulp.task('watch', function() {
    gulp.watch('_assets/components/js/*.js', ['lint', 'scripts']);
    gulp.watch('_assets/components/scss/*.scss', ['sass']);
});

// Default Task
gulp.task('default', ['lint', 'sass', 'scripts', 'watch']);