Jekyll build

Gulpfile-pt7.js

// Run jekyll build command.
gulp.task('build:jekyll', function() {
  var shellCommand = 'bundle exec jekyll build --config _config.yml';
  return gulp.src('')
    .pipe(run(shellCommand))
    .on('error', gutil.log);
});

// Special tasks for building and reloading BrowserSync
gulp.task('build:jekyll:watch', ['build:jekyll:local'], function(callback) {
  browserSync.reload();
  callback();
});

gulp.task('build:scripts:watch', ['build:scripts'], function(callback) {
  browserSync.reload();
  callback();
});

// Serve site and watch files
gulp.task('serve', ['build'], function() {
  browserSync.init({
    server: paths.siteDir,
    ghostMode: false, // Toggle to mirror clicks, reloads etc (performance)
    logFileChanges: true,
    logLevel: 'debug',
    open: true       // Toggle to auto-open page when starting
  });
  gulp.watch(['_config.yml'], ['build:jekyll:watch']);
  // Watch .scss files and pipe changes to browserSync
  gulp.watch('_assets/styles/**/*.scss', ['build:styles']);
  // Watch .js files
  gulp.watch('_assets/js/**/*.js', ['build:scripts:watch']);
  // Watch image files and pipe changes to browserSync
  gulp.watch('_assets/img/**/*', ['build:images']);
  // Watch posts
  gulp.watch('_posts/**/*.+(md|markdown|MD)', ['build:jekyll:watch']);
  // Watch drafts if --drafts flag was passed
  if (module.exports.drafts) {
    gulp.watch('_drafts/*.+(md|markdown|MD)', ['build:jekyll:watch']);
  }
  // Watch html and markdown files
  gulp.watch(['**/*.+(html|md|markdown|MD)', '!_site/**/*.*'], ['build:jekyll:watch']);
  // Watch RSS feed
  gulp.watch('feed.xml', ['build:jekyll:watch']);
  // Watch data files
  gulp.watch('_data/**.*+(yml|yaml|csv|json)', ['build:jekyll:watch']);
});

// Build site
gulp.task('build', function(callback) {
  runSequence(['build:scripts', 'build:styles', 'build:images', 'build:fonts', 'build:downloads'], 'build:jekyll', callback);
});