webpack/webpack

For questions please post on Stack Overflow and use the 'webpack' tag (http://stackoverflow.com/tags/webpack).

afrozMT

@afrozMT

do you mean CPU profile ?

Evilebot Tnawi

@evilebottnawi

no, code

will be great to look on configuration

afrozMT

@afrozMT

here is my webpack config if you want to have quick glance:
http://dpaste.com/0CJQZW5

babelrc :
http://dpaste.com/0H3PKEB

Evilebot Tnawi

@evilebottnawi

maybe using cache-loader for css-loader can decrease compilation time (solved in webpack@5)

afrozMT

@afrozMT

Intresting part is build time is drastically reduced when using babel6 . this problem came when i updared it to babel 7

Evilebot Tnawi

@evilebottnawi

maybe some plugins very slow

afrozMT

@afrozMT

all i ran was just just babel-upgrader script

Evilebot Tnawi

@evilebottnawi

try to profile, it can solve problem

Andrew Kvapil

@viluon

Hi, is this a good place to ask for help? What I'm dealing with doesn't seem to have an answer on StackOverflow

I'm basically trying to reimplement the i18n webpack plugin with the new APIs, but the documentation seems to be lacking at best

John Marinelli

@johnmarinelli

for TerserPlugin is there a way to configure the time that a file stays in the cache ? for example, if i run a webpack build, i would want the output from Terser to be cached for 1 day

KioriSun

@KioriSun

Hey guys, with webpack, is there a way to bundle only some "ES6 imports" into a file(single build), while leaving other files as independent module scripts to be loaded at runtime?
(This is with Typescript btw)

Each of these files might or might not have their own subfolders, etc.

Gregory Danko

@g-style

Hey Guys! Is there a way to add a hash to dynamically imported chunk name?
Example: () => import(/ webpackChunkName: "MainPage.[hash]" / './Pages/MainPage');

John Marinelli

@johnmarinelli

@g-style it looks like you can only use [index] and [request]: https://webpack.js.org/api/module-methods/#magic-comments
why do you want the hash name in the file? i think webpacks' chunk manifest already covers mapping from "MyFile.js" => "MyFile.h4sh.js". my company has a special mechanism for this, so i am not sure

Rob Christian

@robchristian

I'm having trouble finding examples or docs for compiling coffeescript with modern webpack. I have a legacy project I have to support with a fair number of coffeescript files. Also, the webpack docs mention coffee-script, this module is deprecated and points to coffeescript (no hyphen)

Paul Schreiber

@paulschreiber

If I have this webpack 3 config snippet:

        new webpack.optimize.CommonsChunkPlugin({
            name: uid,
            chunks: [ 'home', 'about' ]
        })

What would be the equivalent config for optimization.splitChunks in webpack 4?

Rob

@rm-rf-etc

Uhhhgg. I can't, for the life of me, get webpack file-loader to load files!!!
ERROR in Entry module not found: Error: Can't resolve './src' in '/Users/me/projectDir'

module.exports = [{
    mode: 'production',
    module: {
        rules: [{
            test: /\.(jpe?g|gif|png|svg|woff|ttf|wav|mp3)$/i,
            loader: 'file-loader',
            options: {
                name: '[path][name].[ext]',
            },
        }],
    },
}

Rob

@rm-rf-etc

Dude, WTH?? Webpack exits with an error code, EVEN THOUGH my files copied without error. W T H.

    ERROR in Entry module not found: Error: Can't resolve './src' in '/Users/me/company/assets'
error Command failed with exit code 2.

const buildConfigs = [{
    mode: 'development',
    plugins: [
        new CopyPlugin([{
            from: path.join(__dirname, './src/images/'),
            to: path.join(__dirname, './dist/images/'),
        }]),
    ],
}

Gregory Danko

@g-style

@johnmarinelli I need the hash name because of cache on prod. Every time we update production server, dynamically imported chunks needs to be updated on our clients machines but it doesn't happens because of cache.

Diego Gullo

@bizmate

Maybe not a webpack specific question but wondering if anyone can point me in the right direction. i am running yarn encore, ... components do import react, such as import React from 'react';
How can i make it a dependency without importing it so i can require it from a cdn and keep my scripts lean?

George Maged

@grgops_gitlab

Hi guys, I'm new to webpack, and I'm developing an npm chat package. I can't figure out the correct to make an external dependency. I tried the following for the styled-components package.

externals: { "styled-components": { commonjs: "styled-components", commonjs2: "styled-components" } }

However, when I try importing the package to my main react app. styled-components is not found in my package build file. I made sure styled-components is installed on my main react app

John Marinelli

@johnmarinelli

@bizmate https://webpack.js.org/configuration/externals/#externals

@g-style ahh i see. i think we had that same issue, so we use our own thing for that. we were using this plugin: https://github.com/soundcloud/chunk-manifest-webpack-plugin (webpack v3)

@rm-rf-etc try running webpack with --debug and --display-error-details; https://webpack.js.org/api/cli/#debug-options

yellow1912

@yellow1912

Hi guys, is there a way to completely disable url resolving when using the sass loader? Due to the way my project is setup, all the images, fonts paths inside the scss are already resolved before passing to webpack, so running resolve again will always result in error.

I was reading about resolve-url-loader but I don't see how it can help with the problem. Basically I want no url resolving at all

Anon Ymous

@burnt.orange.cap_gitlab

Hi guys,
Presently I am writing an es6 module which I am planning to bundle with webpack. The codebase which I am working on has a large frontend es5 codebase which is bundled outside webpack. I need to be able to use the es6 modules bundled by webpack in the existing es5 codebase.

Is there a way to export modules from webpack bundles to the global namespace?

I know we can use output.library: 'MyModule' for this, but if I have 3 modules A, B and C then using MyModule.A, MyModule.B,... seems a bit clunky.

I am new to webpack (and JS, haven't really worked on the frontend before)

March Works

@MarchWorks

I would like to send build progress to browser (through webpack-dev-middleware to eventSource) but I don't know how

compiler.apply(new webpack.ProgressPlugin(function(percentage, msg) {

}));
const devMiddleware = require('webpack-dev-middleware')(compiler, {
   logLevel: 'silent',
   publicPath: '/somePath/'
})

in the browser

const sse = new EventSource('/somePath/') // not sure what I should put here
sse.addEventListener('message', event => onSseMessage(event))

Tiago Martinho

@tiagosmartinho

hello,

I am trying to load the fonts through vue.config.js. However I am not getting it.

scss

@include font-face(Lato, '/fonts/lato/latoThin', 100, normal, eot woff2 woff svg ttf);

vue.config.js

     ....
     rules: [{
                test: /\.(woff(2)?|ttf|eot|svg)(\?v=\d+\.\d+\.\d+)?$/,
                use: [{
                    loader: 'file-loader',

                    options: {
                        name: 'lato/[name].[ext]',
                        outputPath: 'fonts/'
                    }
                }]
            },

if I remove the first slash from the source path, fonts/lato/latoThin it loads the fonts, but in compile this error appears

* ./fonts/lato/latoThin.eot? in ./node_modules/css-loader/dist/cjs.js??ref--8-oneOf-3-1!./node_modules/postcss-loader/src??ref--8-oneOf-3-2!./node_modules/sass-loader/dist/cjs.js??ref--8-oneOf-3-3!./node_module s/resolve-url-loader!./src/styles/global.scss

and put the bar back in the font path and it works - /fonts/lato/latoThin

Any solution?

Gregory Danko

@g-style

@johnmarinelli I have found a solution. Actually there is an option for this: output.chunkFilename. So I set it to [name].[chunkhash].js and it works like a charm. Thank you anyway :)

Rob

@rm-rf-etc

@johnmarinelli thanks, that helped a bit. I have a better sense of the problem now but I'm not sure why this is happening. When I try to run a build process that isolates what I'm trying to build, it seems that webpack tries to import files that don't exist and I didn't ask it to import. Here's the error output.

ERROR in Entry module not found: Error: Can't resolve './src' in '/Users/rchristian/Company/assets'
resolve './src' in '/Users/rchristian/Company/assets'
    using description file: /Users/rchristian/Company/assets/package.json (relative path: .)
    Field 'browser' doesn't contain a valid alias configuration
    using description file: /Users/rchristian/Company/assets/package.json (relative path: ./src)
        no extension
        Field 'browser' doesn't contain a valid alias configuration
        /Users/rchristian/Company/assets/src is not a file
        .wasm
        Field 'browser' doesn't contain a valid alias configuration
        /Users/rchristian/Company/assets/src.wasm doesn't exist
        .mjs
        Field 'browser' doesn't contain a valid alias configuration
        /Users/rchristian/Company/assets/src.mjs doesn't exist
        .js
        Field 'browser' doesn't contain a valid alias configuration
        /Users/rchristian/Company/assets/src.js doesn't exist
        .json
        Field 'browser' doesn't contain a valid alias configuration
        /Users/rchristian/Company/assets/src.json doesn't exist
        as directory
        existing directory
            using path: /Users/rchristian/Company/assets/src/index
            using description file: /Users/rchristian/Company/assets/package.json (relative path: ./src/index)
                no extension
                Field 'browser' doesn't contain a valid alias configuration
                /Users/rchristian/Company/assets/src/index doesn't exist
                .wasm
                Field 'browser' doesn't contain a valid alias configuration
                /Users/rchristian/Company/assets/src/index.wasm doesn't exist
                .mjs
                Field 'browser' doesn't contain a valid alias configuration
                /Users/rchristian/Company/assets/src/index.mjs doesn't exist
                .js
                Field 'browser' doesn't contain a valid alias configuration
                /Users/rchristian/Company/assets/src/index.js doesn't exist
                .json
                Field 'browser' doesn't contain a valid alias configuration
                /Users/rchristian/Company/assets/src/index.json doesn't exist

{
    mode: 'production',
    module: {
        rules: [{
            test: /\.s[ac]ss$/i,
            use: ['sass-loader'],
        }],
    },
}

ivan-vilches

@ivan-vilches

hello folks

i am looking for the chats for webpack community , is this active?

Rob

@rm-rf-etc

Why would sass-loader output a main.js file?

{
    mode: 'production',
    entry: [
        path.join(__dirname, './src/stylesheets/postcss.scss'),
        path.join(__dirname, './src/stylesheets/google_fonts.scss'),
    ],
    output: {
        path: path.join(__dirname, './dist/stylesheets'),
        publicPath: './dist/stylesheets',
    },
    plugins: [
        new CopyPlugin([{
            from: 'src/images/',
            to: path.join(__dirname, './dist/images/'),
        }, {
            from: 'src/fonts/',
            to: path.join(__dirname, './dist/fonts/'),
        }]),
    ],
    module: {
        rules: [{
            test: /\.s[ac]ss$/i,
            use: [
                'css-loader',
                'sass-loader',
            ],
        }],
    },
}

dist/stylesheets/main.js -> contents look like minified CSS

Rob

@rm-rf-etc

So, after adding filename: 'styles.css',, the file is suddenly readable (indented correctly), and I can see webpack bundler code, plus stuff...

/***/ }),
/* 2 */
/***/ (function(module, exports, __webpack_require__) {

exports = module.exports = __webpack_require__(0)(false);
// Module
exports.push([module.i, "/*!\n *  Font Awesome 4.4.0 by @davegandy ...

How do I get sass to compile to a regular css file?

Rob

@rm-rf-etc

Found something. "It is not trivial to compile an SCSS file with Webpack, which is not included in the JS file, into its own CSS file. This post shows you how to do that." https://florianbrinkmann.com/en/sass-webpack-4240/

Obviously it should be trivial

Charles Guo

@CharlesGC

hello

Egor Baranov

@goganchic

Hello!

I'm exploring source codes of webpack and mini-css-extract-plugin and I have a question: why two different structures Dependency and Module were introduced? Why Module structure is not enough? If I'm not mistaken Dependency has only information about what should be built and Module has all algorithms about building, caching and so on. Am I correct? In this case in mini-css-extract-plugin CssDependency looks a bit strange, because it does all receives prepared contents from loader and CssModule only exposes prebuilt sources.

harshit786

@harshit786

Hello we are getting problem while running webpack

https://imgur.com/a/i482fBI

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