我如何使用gulp替换文件中的字符串? [英] How can I use gulp to replace a string in a file?

查看:179
本文介绍了我如何使用gulp替换文件中的字符串?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我使用gulp uglify并准备好用于生产的javascript文件。我有这样的代码:
$ b $ pre $ var concat = require('gulp-concat');
var del = require('del');
var gulp = require('gulp');
var gzip = require('gulp-gzip');
var less = require('gulp-less');
var minifyCSS = require('gulp-minify-css');
var uglify = require('gulp-uglify');

var js = {
src:[
//这里有更多文件
'temp / js / app / appConfig.js',
'temp /js/app/appConstant.js',
//这里有更多文件
],

gulp.task('scripts',['clean-js'],函数(){
return gulp.src(js.src).pipe(uglify())
.pipe(concat('js.min.js'))
.pipe(gulp。 dest('content / bundles /'))
.pipe(gzip(gzip_options))
.pipe(gulp.dest('content / bundles /'));
});

我需要做的是替换字符串:

  dataServer:http:// localhost:3048,

with

  dataServer:http://example.com,

在文件'temp / js / app / appConstant.js'中,



我在寻找一些建议。例如,也许我应该制作appConstant.js文件的副本,更改(不知道如何)并在js.src中包含appConstantEdited.js?



但是我我不知道如何制作文件的副本并替换文件中的字符串。



任何帮助你都会非常感激。

解决方案

Gulp流输入,做所有转换,然后流输出。在使用Gulp时,保存临时文件是AFAIK非惯用。



相反,您要找的是替换内容的流式方式。自己写一些东西会比较容易,或者你可以使用现有的插件。对我而言, gulp-replace 如果你想在所有文件中进行替换,很容易改变你的任务:

  var replace = require('gulp-replace'); 
$ b $ gulp.task('scripts',['clean-js'],function(){
return gulp.src(js.src)
.pipe(replace( / http:\ / \ / localhost:\d + / g,'http://example.com'))
.pipe(uglify())
.pipe(concat('js (gzip_options))
.pipe(gulp.dest('content / bundles /'))
.pipe(gzip_options) content / bundles /'));
});

您也可以执行 gulp.src 对你期望该模式的文件进行流式处理,并通过 gulp-replace 将它们单独流式处理,并将它与 gulp.src 之后的所有其他文件的流。


I am using gulp to uglify and make ready my javascript files for production. What I have is this code:

var concat = require('gulp-concat');
var del = require('del');
var gulp = require('gulp');
var gzip = require('gulp-gzip');
var less = require('gulp-less');
var minifyCSS = require('gulp-minify-css');
var uglify = require('gulp-uglify');

var js = {
    src: [
        // more files here
        'temp/js/app/appConfig.js',
        'temp/js/app/appConstant.js',
        // more files here
    ],

gulp.task('scripts', ['clean-js'], function () {
    return gulp.src(js.src).pipe(uglify())
      .pipe(concat('js.min.js'))
      .pipe(gulp.dest('content/bundles/'))
      .pipe(gzip(gzip_options))
      .pipe(gulp.dest('content/bundles/'));
});

What I need to do is to replace the string:

dataServer: "http://localhost:3048",

with

dataServer: "http://example.com",

In the file 'temp/js/app/appConstant.js',

I'm looking for some suggestions. For example perhaps I should make a copy of the appConstant.js file, change that (not sure how) and include appConstantEdited.js in the js.src?

But I am not sure with gulp how to make a copy of a file and replace a string inside a file.

Any help you give would be much appreciated.

解决方案

Gulp streams input, does all transformations, and then streams output. Saving temporary files in between is AFAIK non-idiomatic when using Gulp.

Instead, what you're looking for, is a streaming-way of replacing content. It would be moderately easy to write something yourself, or you could use an existing plugin. For me, gulp-replace has worked quite well.

If you want to do the replacement in all files it's easy to change your task like this:

var replace = require('gulp-replace');

gulp.task('scripts', ['clean-js'], function () {
    return gulp.src(js.src)
      .pipe(replace(/http:\/\/localhost:\d+/g, 'http://example.com'))
      .pipe(uglify())
      .pipe(concat('js.min.js'))
      .pipe(gulp.dest('content/bundles/'))
      .pipe(gzip(gzip_options))
      .pipe(gulp.dest('content/bundles/'));
});

You could also do gulp.src just on the files you expect the pattern to be in, and stream them seperately through gulp-replace, merging it with a gulp.src stream of all the other files afterwards.

这篇关于我如何使用gulp替换文件中的字符串?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

查看全文
登录 关闭
扫码关注1秒登录
发送“验证码”获取 | 15天全站免登陆