gulp-concat两次的内容 [英] gulp-concat twice the content
问题描述
对我来说这是一件奇怪的事情,我有一个任务来连接我的 .js
文件,然后用观察者将它们丑化,但是 concat
这是我的gulp文件:
'use strict';
let gulp = require('gulp');
let stylus = require('gulp-stylus');
let sourcemaps = require('gulp-sourcemaps');
let concat = require('gulp-concat');
let uglify = require('gulp-uglify');
let plumber = require('gulp-plumber');
let bootstrap = require('bootstrap-styl');
让破裂=要求('破裂');
让copy = require('gulp-copy2');
/ *
准备路径
* /
let base ='./theme';
let themeName ='自己主题';
让路径= {
stylus:`$ {base} / $ {themeName} / css`,
js:`$ {base} / $ {themeName} / js `,
vendor:`$ {base} / $ {themeName} / js / vendor`
}
/ *
手写笔编译
* /
gulp.task('stylus-compile',()=> {
return gulp.src([`$ {paths.stylus} / dev / *。styl`,`$ {paths。 (手写笔({
use:[bootstrap(),rupture()]($)
.pipe(plumber())
。 ,
compress:true
)))
.pipe(sourcemaps.write('./'))
.pipe(gulp.dest(`$ {paths.stylus} `));
});
$ b $ * *
获取bootstrap-styl js文件和concat / uglify它们
* /
gulp.task('bootstrap-build', ()=> {
return gulp.src([
'node_modules / bootstrap-styl / js / transition.js',
'node_modules / bootstrap-styl / js / alert.js ',
'node_modules / bootstrap-styl / js / button.js',
'node_modules / bootstrap-styl / js / carousel.js',
'node_modules / bootstrap-styl / js /collapse.js',
'node_modules / bootstrap-styl / js / dropdown.js',
'node_modules / bootstrap-styl / js / modal.js',
'node_modules / bootstrap -styl / js / tooltip.js',
'node_modules / bootstrap-styl / js / popover.js',
'node_modules / bootstrap-styl / js / scrollspy.js',
'node_modules / bootstrap-styl / js / tab.js',
'node_modules / bootstrap-styl / js / affix.js'
])
.pipe(sourcemaps.init())
.pipe(concat('bootstrap.min.js'))
.pipe(uglify())
.pipe(sourcemaps.write('。 /'))
.pipe(gulp.dest(`$ {paths.vendor}`));
});
$ b $ * / $
从NPM获取js资产
* /
gulp.task('js-copy',()=> {
let dirs = [
{src:'node_modules / jquery / dist / jquery.min.js',dest:`$ {paths.vendor} / jquery.min.js`},
{src: 'node_modules / sweet-scroll / sweet-scroll.min.js',dest:`$ {paths.vendor} / sweet-scroll.min.js`}
]
return copy(dirs);
});
$ b $ *
Concat / Uglify JS文件
* /
gulp.task('js-build',()=> {
返回gulp.src(`$ {paths.js} / *。js`)
.pipe(sourcemaps.init())
.pipe(concat('site.min.js'))
// .pipe(uglify())
.pipe(sourcemaps.write('./'))
.pipe(gulp.dest(`$ {paths.js}`)) ;
})
/ *
手表
* /
gulp.task('watch',()=> {
gulp.watch(`$ {paths.js} / *。js`,['js-build']);
gulp.watch(`$ {paths.stylus} / dev / *。styl`,[ 'stylus-compile']);
});
gulp.task('default',['bootstrap-build','js-copy','watch']);
bootstrap-build
任务不需要无论您调用任务多少次,内容都是内容的两倍,但 js-build
不会。
这里是测试将脚本分离为concat和结果:
文件1:
(function(){
console.log(哦!)
console.log(呃!)
})。call这个);
档案2:
(function(){
console.log(hey)
})。call(this);
连接的文件(呃,oh文件在观察者被解雇后重新保存):
$ b $
(function(){
console.log(哦!)
console.log 呃!)
})。call(this);
(function(){
console.log(哦!)
console.log(呃!)
})。调用(这);
(function(){
console.log(hey)
})。call(this);
//#sourceMappingURL = site.min.js.map
(function(){
console.log(hey)
})。call这个);
//#sourceMappingURL = site.min.js.map
在每次重新保存,concat两倍的内容...我真的没有得到这个问题。任何想法?
感谢您的谅解。
$ c> bootstrap-build 的作品是因为它将产生的 bootstrap.min.js
放在与源文件不同的文件夹中。
您的 js-build
任务会连接所有 .js
文件您的 path.js
文件夹,并将结果 site.min.js
放入同一文件夹。
这意味着首次运行 js-build
文件 file1.js
和 file2.js
连接到 site.min.js
中。第二次运行文件 file1.js
, file2.js
和 site.min。 js
连接到 site.min.js
。每次运行 js-build
任务时,您的 site.min.js
都会增长。
您需要做的是将 site.min.js
与其他文件连接在一起:
gulp.task('js-build',()=> {
return gulp.src([
`$ {paths.js} / *。js`,
`!$ {paths.js} / site.min.js`
])
.pipe(sourcemaps.init ())
.pipe(concat('site.min.js'))
// .pipe(uglify())
.pipe(sourcemaps.write('./') )
.pipe(gulp.dest(`$ {paths.js}`));
})
That's a weird thing for me, i have a task to concat my .js
files and then uglify them with a watcher, but the concat
task just twice the content in every call...
Here is my gulpfile:
'use strict';
let gulp = require('gulp');
let stylus = require('gulp-stylus');
let sourcemaps = require('gulp-sourcemaps');
let concat = require('gulp-concat');
let uglify = require('gulp-uglify');
let plumber = require('gulp-plumber');
let bootstrap = require('bootstrap-styl');
let rupture = require('rupture');
let copy = require('gulp-copy2');
/*
Prepare the paths
*/
let base = './theme';
let themeName = 'own-theme';
let paths = {
stylus : `${base}/${themeName}/css`,
js : `${base}/${themeName}/js`,
vendor : `${base}/${themeName}/js/vendor`
}
/*
Stylus compile
*/
gulp.task('stylus-compile', () => {
return gulp.src([`${paths.stylus}/dev/*.styl`, `${paths.stylus}/!**/_*.styl`])
.pipe(plumber())
.pipe(stylus({
use: [bootstrap(), rupture()],
compress: true
}))
.pipe(sourcemaps.write('./'))
.pipe(gulp.dest(`${paths.stylus}`));
});
/*
Get the bootstrap-styl js files and concat/uglify them
*/
gulp.task('bootstrap-build', () => {
return gulp.src([
'node_modules/bootstrap-styl/js/transition.js',
'node_modules/bootstrap-styl/js/alert.js',
'node_modules/bootstrap-styl/js/button.js',
'node_modules/bootstrap-styl/js/carousel.js',
'node_modules/bootstrap-styl/js/collapse.js',
'node_modules/bootstrap-styl/js/dropdown.js',
'node_modules/bootstrap-styl/js/modal.js',
'node_modules/bootstrap-styl/js/tooltip.js',
'node_modules/bootstrap-styl/js/popover.js',
'node_modules/bootstrap-styl/js/scrollspy.js',
'node_modules/bootstrap-styl/js/tab.js',
'node_modules/bootstrap-styl/js/affix.js'
])
.pipe(sourcemaps.init())
.pipe(concat('bootstrap.min.js'))
.pipe(uglify())
.pipe(sourcemaps.write('./'))
.pipe(gulp.dest(`${paths.vendor}`));
});
/*
Get the js assets from NPM
*/
gulp.task('js-copy', () => {
let dirs = [
{ src: 'node_modules/jquery/dist/jquery.min.js', dest: `${paths.vendor}/jquery.min.js` },
{ src: 'node_modules/sweet-scroll/sweet-scroll.min.js', dest: `${paths.vendor}/sweet-scroll.min.js` }
]
return copy(dirs);
});
/*
Concat/Uglify the JS files
*/
gulp.task('js-build', () => {
return gulp.src(`${paths.js}/*.js`)
.pipe(sourcemaps.init())
.pipe(concat('site.min.js'))
// .pipe(uglify())
.pipe(sourcemaps.write('./'))
.pipe(gulp.dest(`${paths.js}`));
})
/*
Watch
*/
gulp.task('watch', () => {
gulp.watch(`${paths.js}/*.js`, ['js-build']);
gulp.watch(`${paths.stylus}/dev/*.styl`, ['stylus-compile']);
});
gulp.task('default', ['bootstrap-build', 'js-copy', 'watch']);
The bootstrap-build
task don't twice the content no matter how many times you call the task, but the js-build
does.
Here are the test separated scripts to concat and the results:
File 1:
(function() {
console.log("oh!")
console.log("uh!")
}).call(this);
File 2:
(function() {
console.log("hey")
}).call(this);
Concated file(uh, oh file re-saved after the watcher was fired):
(function() {
console.log("oh!")
console.log("uh!")
}).call(this);
(function() {
console.log("oh!")
console.log("uh!")
}).call(this);
(function() {
console.log("hey")
}).call(this);
//# sourceMappingURL=site.min.js.map
(function() {
console.log("hey")
}).call(this);
//# sourceMappingURL=site.min.js.map
In every re-save, the concat twice the content... i really don't get the problem. Any idea?
Thanks in adnvance.
The reason your bootstrap-build
works is because it places the resulting bootstrap.min.js
in a different folder than the source files.
Your js-build
task however concatenates all .js
files in your path.js
folder and places the resulting site.min.js
in that same folder.
That means when first running js-build
the files file1.js
and file2.js
are concatenated into site.min.js
. On a second run the files file1.js
, file2.js
and site.min.js
are concatenated into site.min.js
. Every time you run your js-build
task your site.min.js
grows.
What you need to do is exclude site.min.js
from being concatenated with the other files:
gulp.task('js-build', () => {
return gulp.src([
`${paths.js}/*.js`,
`!${paths.js}/site.min.js`
])
.pipe(sourcemaps.init())
.pipe(concat('site.min.js'))
// .pipe(uglify())
.pipe(sourcemaps.write('./'))
.pipe(gulp.dest(`${paths.js}`));
})
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