Minimal Gulp setup w/ LESS +autoprefix/compress, JS +jshint/minify

gulpfile.js

var gulp = require('gulp'),
	sourcemaps = require('gulp-sourcemaps'),
	uglify = require("gulp-uglify"),
	jshint = require("gulp-jshint"),
	rename = require("gulp-rename"),
	less = require("gulp-less"),
	LessPluginCleanCSS = require('less-plugin-clean-css'),
	cleancss = new LessPluginCleanCSS({ advanced: true }),
	LessPluginAutoPrefix = require('less-plugin-autoprefix'),
	autoprefixer = new LessPluginAutoPrefix({ browsers: ["last 2 versions"] });

// JS
gulp.task('js', function () {
	gulp.src(['public/assets/js/**/*.js', '!public/assets/js/**/*.min.js'])
		.pipe(sourcemaps.init())
		.pipe(jshint())
		.pipe(jshint.reporter())
		.pipe(uglify().on('error', function(err){ console.log(err.message); }))
		.pipe(rename({ suffix: ".min" }))
		.pipe(sourcemaps.write("."))
		.pipe(gulp.dest('public/assets/js'));
});

// Less
gulp.task('less', function () {
	gulp.src('public/assets/less/style.less')
		.pipe(less({
			plugins: [autoprefixer, cleancss]
		}).on('error', function(err){ console.log(err.message); }))
		.pipe(gulp.dest('public/assets/css'));
});

// Watchers
gulp.task('watch', function () {
	gulp.watch(['public/assets/js/**/*.js', '!public/assets/js/**/*.min.js'], ['js']);
	gulp.watch(['public/assets/less/**/*'], ['less']);
});

gulp.task('default', ['watch']);

package.json

{
  "name": "tam-gulp",
  "version": "0.0.1",
  "devDependencies": {
    "gulp": "*",
    "jshint": "*",
    "gulp-sourcemaps": "*",
    "gulp-jshint": "*",
    "gulp-less": "*",
    "gulp-rename": "*",
    "gulp-uglify": "*",
    "gulp-util": "*",
    "less-plugin-autoprefix": "*",
    "less-plugin-clean-css": "*"
  }
}

See Tam/start for the new updated version