Gulp 4 个迁移错误(您是否忘记发出异步完成信号?)
Gulp 4 Migration Errors (Did you forget to signal async completion?)
我有一个 gulp 3 文件,我正在尝试将其升级到 gulp 4。当我这样做时,一些任务可以工作,而其他任务则不能。我得到的三个错误如下:
干净的风格:
gulp.task('clean-styles', function (done) {
var files = config.temp + '**/*.css';
clean(files, done);
});
[23:47:05] The following tasks did not complete: clean-styles
[23:47:05] Did you forget to signal async completion?
scss-观察者:
gulp.task('scss-watcher', function () {
gulp.watch([config.scss], ['styles']);
});
[23:51:27] 'scss-watcher' errored after 2.46 ms
[23:51:27] Error: watching ./src/client/styles/styles.scss: watch task has to be a function (optionally generated by using gulp.parallel or gulp.series)
样式:(如果我删除干净样式系列,这将起作用)
gulp.task('styles', gulp.series('clean-styles', function () {
log('Compiling SCSS --> CSS');
return gulp
.src(config.scss)
.pipe($.scss())
.pipe($.autoprefixer({ browsers: ['last 2 versions', '> 5%'] }))
.pipe(gulp.dest(config.temp));
}));
[23:52:42] The following tasks did not complete: styles, clean-styles
[23:52:42] Did you forget to signal async completion?
兽医:(有效)
gulp.task('vet', function () {
log('Analyzing source with ESLint');
return gulp
.src(config.js)
.pipe($.if(args.verbose, $.print()))
.pipe($.eslint())
.pipe($.eslint.format())
.pipe($.eslint.failOnError());
});
函数:
function clean(path, done) {
log('Cleaning: ' + $.util.colors.blue(path));
del(path, done);
}
function log(msg) {
if (typeof(msg) === 'object') {
for (var item in msg) {
if (msg.hasOwnProperty(item)) {
$.util.log($.util.colors.blue(msg[item]));
}
}
}
else {
$.util.log($.util.colors.blue(msg));
}
}
我一定是漏掉了什么。任何人都可以补充我所缺少的吗?
干净风格
del
不接受回调函数。它 return 是一个 Promise
,你必须 return 在你的任务中:
function clean(path) {
log('Cleaning: ' + $.util.colors.blue(path));
return del(path);
}
gulp.task('clean-styles', function () {
var files = config.temp + '**/*.css';
return clean(files);
});
scss-watcher
gulp.watch()
不再支持任务名称数组。你必须给它传递一个函数,gulp.series()
或 gulp.parallel()
:
gulp.task('scss-watcher', function () {
gulp.watch([config.scss], gulp.series('styles'));
});
样式
应该与上面 clean-styles
的更改一起工作。
朋友们,这是解决这个问题的方法:
我们需要调用回调函数(Task 和 Anonimous
function electronTask(callbackA)
{
return gulp.series(myFirstTask, mySeccondTask, (callbackB) =>
{
callbackA();
callbackB();
});
}
我有一个 gulp 3 文件,我正在尝试将其升级到 gulp 4。当我这样做时,一些任务可以工作,而其他任务则不能。我得到的三个错误如下:
干净的风格:
gulp.task('clean-styles', function (done) {
var files = config.temp + '**/*.css';
clean(files, done);
});
[23:47:05] The following tasks did not complete: clean-styles
[23:47:05] Did you forget to signal async completion?
scss-观察者:
gulp.task('scss-watcher', function () {
gulp.watch([config.scss], ['styles']);
});
[23:51:27] 'scss-watcher' errored after 2.46 ms
[23:51:27] Error: watching ./src/client/styles/styles.scss: watch task has to be a function (optionally generated by using gulp.parallel or gulp.series)
样式:(如果我删除干净样式系列,这将起作用)
gulp.task('styles', gulp.series('clean-styles', function () {
log('Compiling SCSS --> CSS');
return gulp
.src(config.scss)
.pipe($.scss())
.pipe($.autoprefixer({ browsers: ['last 2 versions', '> 5%'] }))
.pipe(gulp.dest(config.temp));
}));
[23:52:42] The following tasks did not complete: styles, clean-styles
[23:52:42] Did you forget to signal async completion?
兽医:(有效)
gulp.task('vet', function () {
log('Analyzing source with ESLint');
return gulp
.src(config.js)
.pipe($.if(args.verbose, $.print()))
.pipe($.eslint())
.pipe($.eslint.format())
.pipe($.eslint.failOnError());
});
函数:
function clean(path, done) {
log('Cleaning: ' + $.util.colors.blue(path));
del(path, done);
}
function log(msg) {
if (typeof(msg) === 'object') {
for (var item in msg) {
if (msg.hasOwnProperty(item)) {
$.util.log($.util.colors.blue(msg[item]));
}
}
}
else {
$.util.log($.util.colors.blue(msg));
}
}
我一定是漏掉了什么。任何人都可以补充我所缺少的吗?
干净风格
del
不接受回调函数。它 return 是一个 Promise
,你必须 return 在你的任务中:
function clean(path) {
log('Cleaning: ' + $.util.colors.blue(path));
return del(path);
}
gulp.task('clean-styles', function () {
var files = config.temp + '**/*.css';
return clean(files);
});
scss-watcher
gulp.watch()
不再支持任务名称数组。你必须给它传递一个函数,gulp.series()
或 gulp.parallel()
:
gulp.task('scss-watcher', function () {
gulp.watch([config.scss], gulp.series('styles'));
});
样式
应该与上面 clean-styles
的更改一起工作。
朋友们,这是解决这个问题的方法:
我们需要调用回调函数(Task 和 Anonimous
function electronTask(callbackA)
{
return gulp.series(myFirstTask, mySeccondTask, (callbackB) =>
{
callbackA();
callbackB();
});
}