From 36a5aed7670d5d765317f7d6d3525c4b4664d224 Mon Sep 17 00:00:00 2001
From: Suguru Motegi <suguru.motegi@gmail.com>
Date: Sun, 11 Jun 2017 18:09:22 -0700
Subject: [PATCH] chore(gulp): clean up gulp tasks [ci skip]

---
 gulp/tasks/changelog.js    |  8 ++++----
 gulp/tasks/gh-pages.js     |  8 ++++----
 gulp/tasks/jsbeautifier.js |  4 ++--
 gulp/tasks/jscs.js         |  2 +-
 gulp/tasks/jsdoc.js        |  4 ++--
 gulp/tasks/perf.js         | 25 -------------------------
 gulp/tasks/release.js      |  3 +--
 7 files changed, 14 insertions(+), 40 deletions(-)
 delete mode 100644 gulp/tasks/perf.js

diff --git a/gulp/tasks/changelog.js b/gulp/tasks/changelog.js
index 2846426c..455b3b4e 100644
--- a/gulp/tasks/changelog.js
+++ b/gulp/tasks/changelog.js
@@ -8,13 +8,13 @@ const generator = require('changelog-generator');
 
 const async = require('../../');
 
-gulp.task('changelog', (done) => {
-  let filepath = path.resolve(__dirname, '../..', 'package.json');
-  let url = require(filepath).homepage;
+gulp.task('changelog', done => {
+  const filepath = path.resolve(__dirname, '../..', 'package.json');
+  const { homepage } = require(filepath);
 
   async.angelFall([
 
-    async.apply(generator, url),
+    async.apply(generator, homepage),
 
     async.apply(git.exec, {
       args: 'add ./CHANGELOG.md'
diff --git a/gulp/tasks/gh-pages.js b/gulp/tasks/gh-pages.js
index 3b6d5cc0..337c6a26 100644
--- a/gulp/tasks/gh-pages.js
+++ b/gulp/tasks/gh-pages.js
@@ -9,13 +9,13 @@ const git = require('gulp-git');
 const async = require('../../');
 const jsdoc = require('./jsdoc');
 
-gulp.task('gh-pages', (done) => {
+gulp.task('gh-pages', done => {
 
-  let filepath = path.resolve(__dirname, '../..', 'lib/async.js');
-  let options = {
+  const filepath = path.resolve(__dirname, '../..', 'lib/async.js');
+  const options = {
     encoding: 'utf8'
   };
-  let asyncFile = fs.readFileSync(filepath, options);
+  const asyncFile = fs.readFileSync(filepath, options);
   async.angelFall([
 
     async.apply(git.fetch, 'origin', ''),
diff --git a/gulp/tasks/jsbeautifier.js b/gulp/tasks/jsbeautifier.js
index ae86ea9d..d4dae934 100644
--- a/gulp/tasks/jsbeautifier.js
+++ b/gulp/tasks/jsbeautifier.js
@@ -10,8 +10,8 @@ const config = require('../config');
 gulp.task('jsfmt', ['jsbeautifier']);
 
 gulp.task('jsbeautifier', () => {
-  let dirnames = config.jsbeautifier.dirnames;
-  let streams = _.map(dirnames, (task) => {
+  const { dirnames } = config.jsbeautifier;
+  const streams = _.map(dirnames, task => {
     let dirname = task.slice(0, _.lastIndexOf(task, '/'));
     return gulp.src(task)
       .pipe(jsbeautifier({
diff --git a/gulp/tasks/jscs.js b/gulp/tasks/jscs.js
index 015c98e9..828295e9 100644
--- a/gulp/tasks/jscs.js
+++ b/gulp/tasks/jscs.js
@@ -6,7 +6,7 @@ const jscs = require('gulp-jscs');
 const config = require('../config');
 
 gulp.task('jscs', () => {
-  let dirnames = config.jscs.dirnames;
+  const { dirnames } = config.jscs;
   return gulp.src(dirnames)
     .pipe(jscs('.jscsrc'));
 });
diff --git a/gulp/tasks/jsdoc.js b/gulp/tasks/jsdoc.js
index 19eb5f83..a257d0de 100644
--- a/gulp/tasks/jsdoc.js
+++ b/gulp/tasks/jsdoc.js
@@ -11,8 +11,8 @@ const config = JSON.parse(fs.readFileSync(path.resolve(__dirname, '../..', '.jsd
 }));
 
 function createJSDoc(done) {
-  let dirpath = path.resolve(__dirname, '../..', config.opts.destination);
-  exec('rm -rf ' + dirpath);
+  const dirpath = path.resolve(__dirname, '../..', config.opts.destination);
+  exec(`rm -rf ${dirpath}`);
   exec('$(npm bin)/jsdoc -c .jsdocrc ./lib/async.js', done);
 }
 
diff --git a/gulp/tasks/perf.js b/gulp/tasks/perf.js
deleted file mode 100644
index 2e854fb9..00000000
--- a/gulp/tasks/perf.js
+++ /dev/null
@@ -1,25 +0,0 @@
-'use strict';
-
-const _ = require('lodash');
-const exec = require('child_process').exec;
-const es = require('event-stream');
-
-const gulp = require('gulp');
-const gutil = require('gulp-util');
-
-gulp.task('perf', () => {
-  let filename = gutil.env.file || '*';
-  let gc = !!gutil.env.gc;
-
-  gulp.src([
-    './perf/func-comparator/**/sample.' + filename + '.js'
-  ])
-  .pipe(es.map((file, next) => {
-    let filepath = _.first(file.history);
-    let command = ['node', gc ? '--expose_gc' : '', filepath].join(' ');
-    exec(command, (err, result) => {
-      console.log(result);
-      next(err);
-    });
-  }));
-});
diff --git a/gulp/tasks/release.js b/gulp/tasks/release.js
index 011d4f80..161f408c 100644
--- a/gulp/tasks/release.js
+++ b/gulp/tasks/release.js
@@ -25,8 +25,7 @@ _.forEach(types, type => {
     'release:dist',
     'release:commit',
     'release:tag',
-    'gh-pages',
-    'changelog'
+    'gh-pages'
   ));
 });