text: var gulp = require('gulp');
  var eslint = require('gulp-eslint');
  var uglify = require('gulp-uglify');
  var rename = require('gulp-rename');
  var concat = require('gulp-concat');
  var insert = require('gulp-insert');
  var wrap = require('gulp-wrap');
  
  var files = [
    'lib/jsbn/jsbn.js',
    'lib/jsbn/jsbn2.js',
    'lib/jsbn/prng4.js',
    'lib/jsbn/rng.js',
    'lib/jsbn/rsa.js',
    'lib/jsbn/rsa2.js',
    'lib/jsbn/rsa-async.js',
    'lib/jsbn/base64.js',
    'lib/jsrsasign/asn1-1.0.js',
    'lib/asn1js/hex.js',
    'lib/asn1js/base64.js',
    'lib/asn1js/asn1.js',
    'src/jsencrypt.js'
  ];
  
  var lintFiles = [
    'src/jsencrypt.js'
  ];
  
  var licenses = [
    'src/LICENSE.txt',
    'lib/jsrsasign/LICENSE.txt',
    'lib/jsbn/LICENSE.txt',
    'lib/asn1js/LICENSE.txt'
  ];
  
  gulp.task('lint', function () {
    return gulp.src(lintFiles)
      .pipe(eslint())
      .pipe(eslint.format())
      .pipe(eslint.failAfterError());
  });
  
  gulp.task('license', function() {
    return gulp.src(licenses)
      .pipe(insert.transform(function(contents, file) {
        return 'File: ' + file.path.replace(__dirname, '') + "\n" + contents;
      }))
      .pipe(concat('LICENSE.txt'))
      .pipe(gulp.dest('bin'));
  });
  
  var packageJson = require('./package.json');
  gulp.task('scripts', function() {
    return gulp.src(files)
      .pipe(concat('jsencrypt.js'))
      .pipe(wrap({src: 'src/template.txt'}, {version: packageJson.version}, {variable: 'data'}))
      .pipe(gulp.dest('bin/'))
      .pipe(rename('jsencrypt.min.js'))
      .pipe(uglify())
      .pipe(gulp.dest('bin'));
  });
  
  gulp.task('build', gulp.series('lint', 'scripts', 'license'));
  gulp.task('default', gulp.series('build'));
  