update 2020-04-22

gulpfile.js

@@ -3,43 +3,41 @@ var gulp = require('gulp'),
   shell = require('gulp-shell'),
   jsdoc = require('gulp-jsdoc3');
 
-// steps
-// 2. generate new /public with hexo
-// 3. replace /public/downloads with /source/downloads
-// 4. generate api docs to /public
-
 // 1 clean /public folder
-gulp.task('clean-public', function() {
-  return gulp.src('public', { read: false }).pipe(clean());
+gulp.task('clean-public', function () {
+  return gulp.src('public', { read: false, allowEmpty: true }).pipe(clean());
 });
 
 // 2 generate new /public with hexo
 gulp.task(
   'generate-hexo',
-  ['clean-public'],
-  shell.task(['node ./node_modules/hexo/bin/hexo generate'], { cwd: './' })
+  gulp.series(
+    'clean-public',
+    shell.task(['node ./node_modules/hexo/bin/hexo generate'], { cwd: './' })
+  )
 );
 
 // 3 replace /public/downloads with /source/downloads
-gulp.task('clean-public-downloads', ['generate-hexo'], function() {
+gulp.task('clean-public-downloads', function () {
   return gulp.src('public/downloads', { read: false }).pipe(clean());
 });
 
-gulp.task('copy-source-download', ['clean-public-downloads'], function() {
-  return gulp.src('source/downloads/**').pipe(gulp.dest('public/downloads'));
-});
+gulp.task(
+  'copy-source-download',
+  gulp.series('clean-public-downloads', function () {
+    return gulp.src('source/downloads/**').pipe(gulp.dest('public/downloads'));
+  })
+);
 
 // 4 generate api docs to /public
-gulp.task('docs', ['clean-public'], function() {
+gulp.task('docs', function () {
   var config = require('./jsdoc.json');
   return gulp.src(['./konva.js', '../konva/README.md']).pipe(jsdoc(config));
 });
 
-gulp.task('generate', [
-  'clean-public',
-  'generate-hexo',
-  'copy-source-download',
-  'docs'
-]);
+gulp.task(
+  'generate',
+  gulp.series('clean-public', 'generate-hexo', 'copy-source-download', 'docs')
+);
 
-gulp.task('default', ['generate']);
+gulp.task('default', gulp.series('generate'));