当我监视 index.html
(完整路径在CONFIG.APP.INDEX
中)的更改时,出现了错误。所有我的任务都在单独的文件中。例如,这是tasks/watch.ts
:
import * as CONFIG from '../config';
export default done => {
// other watches
gulp.watch(CONFIG.APP.INDEX, gulp.series('inject'));
};
第一次更改任务会正常执行,但第二次更改时出现以下错误:
c:\~\node_modules\through2\node_modules\readable-stream\lib\_stream_writable.js:203
var er = new Error('write after end');
^
Error: write after end
at writeAfterEnd (c:\~\node_modules\through2\node_modules\readable-stream\lib\_stream_writable.js:203:12)
at DestroyableTransform.Writable.write (c:\~\node_modules\through2\node_modules\readable-stream\lib\_stream_writable.js:239:20)
at DestroyableTransform.ondata (c:\~\node_modules\through2\node_modules\readable-stream\lib\_stream_readable.js:531:20)
at emitOne (events.js:77:13)
at DestroyableTransform.emit (events.js:169:7)
at readableAddChunk (c:\~\node_modules\through2\node_modules\readable-stream\lib\_stream_readable.js:198:18)
at DestroyableTransform.Readable.push (c:\~\node_modules\through2\node_modules\readable-stream\lib\_stream_readable.js:157:10)
at DestroyableTransform.Transform.push (c:\~\node_modules\through2\node_modules\readable-stream\lib\_stream_transform.js:123:32)
at afterTransform (c:\~\node_modules\through2\node_modules\readable-stream\lib\_stream_transform.js:79:51)
at TransformState.afterTransform (c:\~\node_modules\through2\node_modules\readable-stream\lib\_stream_transform.js:58:12)
at c:\~\node_modules\vinyl-fs\lib\src\getContents\bufferFile.js:18:5
at c:\~\node_modules\graceful-fs\graceful-fs.js:78:16
at FSReqWrap.readFileAfterClose [as oncomplete] (fs.js:404:3)
tasks/inject.ts任务:
declare var require;
const gulp = require('gulp');
const plugins = require('gulp-load-plugins')();
import * as CONFIG from '../config';
export default done => {
return gulp
.src(CONFIG.APP.INDEX)
.pipe(require('../util/inject/fixes').default) // <--- PROBLEM IS HERE
// other stuff...
.pipe(gulp.dest(CONFIG.DST.BUILD))
.on('error', plugins.util.log);
};
util/inject/fixes.ts 任务
declare var require;
const plugins = require('gulp-load-plugins')();
// errors even with this...
export default plugins.util.noop();
任务从gulpfile.ts/index.ts
中被加载,如下所示:
fs.readdirSync('./gulpfile.ts/tasks').map(file => {
let name = file.replace(/\.ts$/, '');
let task = require(path.join(path.resolve('.'), 'gulpfile.ts', 'tasks', file));
gulp.task(name, task.default);
});
我已经确定错误是从哪里引起的,但不知道是什么导致了这个问题,也不知道该如何解决。只有在第一次更改并执行任务后,观看 index.html
时才会出现问题。手动运行任务正常(gulp inject
),所有其他观察和任务都正常工作。