bespoke/gulpfile.js

DIY Presentation Micro-Framework

var gulp = require('gulp'),
  gutil = require('gulp-util'),
  clean = require('gulp-clean'),
  jshint = require('gulp-jshint'),
  map = require('vinyl-map'),
  istanbul = require('istanbul'),
  karma = require('gulp-karma'),
  coveralls = require('gulp-coveralls'),
  header = require('gulp-header'),
  uglify = require('gulp-uglify'),
  gzip = require('gulp-gzip'),
  micro = require('gulp-micro'),
  pkg = require('./package.json'),
  browserify = require('browserify'),
  source = require('vinyl-source-stream'),
  buffer = require('vinyl-buffer'),
  rename = require('gulp-rename'),
  path = require('path'),
  template = require('lodash').template;

gulp.task('default', ['clean', 'lint', 'test', 'compile']);
gulp.task('dev', ['compile', 'watch']);

gulp.task('watch', function() {
  gulp.watch('lib/**/*.js', ['test', 'compile']);
  gulp.watch('test/spec/**/*.js', ['test']);
});

gulp.task('clean', function() {
  return gulp.src(['dist', 'test/coverage'], { read: false })
    .pipe(clean());
});

gulp.task('lint', function() {
  return gulp.src(['gulpfile.js', 'lib/**/*.js', 'specs/**/*.js'])
      .pipe(jshint('.jshintrc'))
      .pipe(jshint.reporter('jshint-stylish'));
});

gulp.task('instrument', function() {
  return gulp.src('lib/**/*.js')
    .pipe(map(function(code, filename) {
      var instrumenter = new istanbul.Instrumenter(),
        relativePath = path.relative(__dirname, filename);
      return instrumenter.instrumentSync(code.toString(), relativePath);
    }))
    .pipe(gulp.dest('lib-instrumented'));
});

gulp.task('test', ['clean', 'instrument'], function() {
  return gulp.src(['test/spec/*Spec.js'])
    .pipe(karma({ configFile: 'karma.conf.js' }));
});

gulp.task('coveralls', ['test'], function() {
  return gulp.src(['test/coverage/**/lcov.info'])
    .pipe(coveralls());
});

gulp.task('compile', ['clean'], function() {
  return browserify('./lib/bespoke.js')
    .bundle({ standalone: 'bespoke' })
    .on('error', gutil.log)
    .pipe(source('bespoke.js'))
    .pipe(buffer())
    .pipe(header(template([
        '/*!',
        ' * <%= title %> v<%= version %>',
        ' *',
        ' * Copyright <%= new Date().getFullYear() %>, <%= author.name %>',
        ' * This content is released under the <%= licenses[0].type %> license',
        ' * <%= licenses[0].url %>',
        ' */\n\n'
      ].join('\n'), pkg)))
    .pipe(gulp.dest('dist'))
    .pipe(rename('bespoke.min.js'))
    .pipe(uglify())
    .pipe(header(template([
        '/*! <%= title %> v<%= version %> ',
        '© <%= author.name %>, ',
        '<%= licenses[0].type %> License */\n'
      ].join(''), pkg)))
    .pipe(gulp.dest('dist'))
    .pipe(gzip())
    .pipe(micro({ limit: 1024 }));
});