gistfile1.txt

import gulp from 'gulp';
import gulpLoadPlugins from 'gulp-load-plugins';
import browserSync from 'browser-sync';
import del from 'del';
import childProcess from 'child_process';

const $ = gulpLoadPlugins();
const reload = browserSync.reload;

gulp.task('jekyll-serve', (done) => {
  return childProcess.spawn('bundle', ['exec', 'jekyll', 'build', '-q', '--incremental', '--config=_config.yml', '--limit', '30'], { stdio: 'inherit' })
    .on('close', done);
});

gulp.task('jekyll-build', (done) => {
  return childProcess.spawn('bundle', ['exec', 'jekyll', 'build', '-q', '--config=_config.yml,_config-prod.yml'], { stdio: 'inherit' })
    .on('close', done);
});

gulp.task('styles', () => {
  return gulp.src('_app/_scss/*.scss')
    .pipe($.plumber())
    .pipe($.sourcemaps.init())
    .pipe($.sass.sync({
      outputStyle: 'expanded',
      precision: 10,
      includePaths: ['.']
    }).on('error', $.sass.logError))
    .pipe($.autoprefixer({browsers: ['> 1%', 'last 2 versions', 'Firefox ESR']}))
    .pipe($.sourcemaps.write())
    .pipe(gulp.dest('.tmp/css'))
    .pipe(reload({stream: true}));
});

gulp.task('scripts', () => {
  return gulp.src('_app/_js/**/*.js')
    .pipe($.plumber())
    .pipe($.sourcemaps.init())
    .pipe($.babel())
    .pipe($.sourcemaps.write('.'))
    .pipe(gulp.dest('.tmp/js'))
    .pipe(reload({stream: true}));
});

function lint(files, options) {
  return () => {
    return gulp.src(files)
      .pipe(reload({stream: true, once: true}))
      .pipe($.eslint(options))
      .pipe($.eslint.format())
      .pipe($.if(!browserSync.active, $.eslint.failAfterError()));
  };
}
// const testLintOptions = {
//   env: {
//     mocha: true
//   }
// };

gulp.task('lint', lint('_app/js/**/*.js'));
// gulp.task('lint:test', lint('test/spec/**/*.js', testLintOptions));

gulp.task('html', ['jekyll-build', 'styles', 'scripts'], () => {
  return gulp.src('_site/**/*.html')
    .pipe($.useref({searchPath: ['.tmp', '_site', '.']}))
    .pipe($.if('*.js', $.uglify()))
    .pipe($.if('*.css', $.cssnano()))
    .pipe($.if('*.html', $.htmlmin({collapseWhitespace: true})))
    .pipe(gulp.dest('_dist'));
});

gulp.task('images', () => {
  return gulp.src('_site/img/**/*')
    .pipe($.cache($.imagemin({
      progressive: true,
      interlaced: true,
      // don't remove IDs from SVGs, they are often used
      // as hooks for embedding and styling
      svgoPlugins: [{cleanupIDs: false}]
    })))
    .pipe(gulp.dest('_dist/img'));
});

gulp.task('extras', () => {
  return gulp.src([
    '_site/*.*',
    '!_site/*.html'
  ], {
    dot: true
  }).pipe(gulp.dest('_dist'));
});

gulp.task('clean', del.bind(null, ['.tmp', '_site', '_dist']));

gulp.task('serve', ['jekyll-serve', 'styles', 'scripts'], () => {
  browserSync({
    notify: false,
    port: 9000,
    server: {
      baseDir: ['.tmp', '_site'],
      routes: {
        '/bower_components': 'bower_components'
      }
    }
  });

  gulp.watch([
    '_app/**/*.{md,html}',
    '_app/img/**/*',
    // '_app/fonts/**/*',
  ], ['jekyll-serve']);

  gulp.watch([
    '_site/**/*.html',
    '_site/img/**/*',
    // '_site/fonts/**/*'
  ]).on('change', reload);

  gulp.watch('_app/_scss/**/*.scss', ['styles']);
  gulp.watch('_app/_js/**/*.js', ['scripts']);
});

gulp.task('serve:dist', () => {
  browserSync({
    notify: false,
    port: 9000,
    server: {
      baseDir: ['_dist']
    }
  });
});

// gulp.task('serve:test', ['scripts'], () => {
//   browserSync({
//     notify: false,
//     port: 9000,
//     ui: false,
//     server: {
//       baseDir: 'test',
//       routes: {
//         '/scripts': '.tmp/scripts',
//         '/bower_components': 'bower_components'
//       }
//     }
//   });

//   gulp.watch('_app/scripts/**/*.js', ['scripts']);
//   gulp.watch('test/spec/**/*.js').on('change', reload);
//   gulp.watch('test/spec/**/*.js', ['lint:test']);
// });

gulp.task('build', ['lint', 'html', 'images', 'extras'], () => {
  return gulp.src('_dist/**/*').pipe($.size({title: 'build', gzip: true}));
});

gulp.task('default', ['clean'], () => {
  gulp.start('build');
});