text: 'use strict';
  
  var fs = require('fs')
    , pkg = require('./package.json')
  
    , gulp = require('gulp')
    , header = require('gulp-header')
    , footer = require('gulp-footer')
    , concat = require('gulp-concat')
    , uglify = require('gulp-uglify')
    , jshint = require('gulp-jshint')
    , sourcemaps = require('gulp-sourcemaps');
  
  
  var paths = {
    vendor: [
    "grid.js", "version.js", "detector.js", "formatinf.js",
    "errorlevel.js", "bitmat.js", "datablock.js","bmparser.js",
    "datamask.js","rsdecoder.js","gf256poly.js", "gf256.js",
    "decoder.js", "qrcode.js", "findpat.js", "alignpat.js",
    "databr.js"]
      .map(function (file) { return 'vendor/' + file; }),
  
    vendorBuild: ['build/qrcode.js'],
  
    src: ['src/qcode-decoder.js']
  };
  
  
  gulp.task('build', ['build:vendor'], function() {
    return gulp.src(paths.vendorBuild.concat(paths.src))
      .pipe(sourcemaps.init())
        .pipe(concat('qcode-decoder.min.js'))
        .pipe(uglify({mangle: true}))
      .pipe(sourcemaps.write('./'))
      .pipe(gulp.dest('build'));
  });
  
  gulp.task('build:vendor', function () {
    var vendor = {
      header: fs.readFileSync(__dirname + '/vendor/header-umd.js'),
      footer: fs.readFileSync(__dirname + '/vendor/footer-umd.js')
    };
  
    return gulp.src(paths.vendor)
      .pipe(sourcemaps.init())
        .pipe(concat('qrcode.js'))
        .pipe(header(vendor.header))
        .pipe(footer(vendor.footer))
      .pipe(sourcemaps.write('./'))
      .pipe(gulp.dest('build'));
  });
  
  gulp.task('hint', function () {
    return gulp.src('src/*.js')
      .pipe(jshint())
      .pipe(jshint.reporter('default'))
      .pipe(jshint.reporter('fail'));
  });
  
  gulp.task('watch', function () {
    gulp.watch(paths.src, ['hint', 'build']);
  });
  
  gulp.task('default', ['hint', 'build']);
  