如何使用Gulp.js将流保存到多个目的地? [英] How to save a stream into multiple destinations with Gulp.js?
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问题描述
var gulp = require('gulp');
var $ = require('gulp-load-plugins')();
var source = require('vinyl-source-stream');
var browserify = require('browserify');
$ b gulp.task('scripts',function(){
return browserify('./ src / app.js')。bundle()
.pipe(source 'app.js'))
.pipe(gulp.dest('./ build'))// OK。app.js is saved。
.pipe($。rename('app.min .js'))
.pipe($。streamify($。uglify())
.pipe(gulp.dest('./ build')); //失败。app.min.js没有保存。
));
当file.contents是一个当前你不得不为每个dest使用两个数据流使用file.contents作为流,将来可能会被修复。
var gulp = require('gulp') ;
var rename = require('gulp-rename');
var streamify = require('gulp-streamify');
var uglify = require('gulp-uglify');
var source = require('vinyl-source-str eam');
var browserify = require('browserify');
var es = require('event-stream');
gulp.task('scripts',function(){
var normal = browserify('./ src / index.js')。bundle()
.pipe source('bundle.js'))
.pipe(gulp.dest('./ dist'));
var min = browserify('./ src / index.js' ).bundle()
.pipe(重命名('bundle.min.js'))
.pipe(streamify(uglify())
.pipe(gulp.dest('./ dist'));
return es.concat(normal,min);
});
编辑:这个bug现在已经在gulp中修复了。原始帖子中的代码应该可以正常工作。
var gulp = require('gulp');
var $ = require('gulp-load-plugins')();
var source = require('vinyl-source-stream');
var browserify = require('browserify');
gulp.task('scripts', function () {
return browserify('./src/app.js').bundle()
.pipe(source('app.js'))
.pipe(gulp.dest('./build')) // OK. app.js is saved.
.pipe($.rename('app.min.js'))
.pipe($.streamify($.uglify())
.pipe(gulp.dest('./build')); // Fail. app.min.js is not saved.
});
Piping to multiple destinations when file.contents is a stream is not currently supported. What is a workaround for this problem?
解决方案
Currently you have to use two streams for each dest when using file.contents as a stream. This will probably be fixed in the future.
var gulp = require('gulp');
var rename = require('gulp-rename');
var streamify = require('gulp-streamify');
var uglify = require('gulp-uglify');
var source = require('vinyl-source-stream');
var browserify = require('browserify');
var es = require('event-stream');
gulp.task('scripts', function () {
var normal = browserify('./src/index.js').bundle()
.pipe(source('bundle.js'))
.pipe(gulp.dest('./dist'));
var min = browserify('./src/index.js').bundle()
.pipe(rename('bundle.min.js'))
.pipe(streamify(uglify())
.pipe(gulp.dest('./dist'));
return es.concat(normal, min);
});
EDIT: This bug is now fixed in gulp. The code in your original post should work fine.
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