How can I get the all entry file name in the loaders? #2090

[lishichao1002]

a.js

export const a = 1;

main1.js

import { a } from './a.js';
console.log(a + 1)

main2.js

import { a } from './a.js';
console.log(a + 1)

main3.js

import { a } from './a.js';
console.log(a + 1)

webpack.config.js

module.exports = {
  entry: {
    main1: './main1.js',
    main2: './main2.js',
    main3 './main3.js',
  },
  module: {
    rules: [
      { test: /\.js$/, use: './my-customer-loader' },
    ],
  },
};

my-customer-loader.js

module.exports = function(content, map, meta) {
    const filePath = this.resourcePath;
    const fullFilePath = this.resource;
    const entryFiles = // TODO How can I get the all entry file name in the loaders ??
};

how can i get all etnry file name in the loaders ?

relative issues #2090

[alexander-akait]

Why you need it? You can do using this._compilation.entries. Anyway generate code based is entries often is bad idea, entries can be added late (after loaders) and name can be renamed/hashed/etc

[lishichao1002]

hello， the this._compilation.entries is all entries，not a.js's entries。

my scene is:

In order to optimize fmp, I want preload api data，I inject api invoke to html，so api can send as script send time， not wait framework library js download and compile complete ，like below code:

source code:
vue.js

preAxios({
   method: 'get',
   url: '/some/api/url',
}).then(cosnole.log).catch(console.error)

build target code:
index.html

<script>
// inject this code in html in order to send xhr early
window.__preAxios__.result_hash_ = axios({ method: get, url: '/some/api/url' })
</script>
<script src="vue.lib.js"></script>
<script src="route.page.js"></script>

vue.js

// Correlation xhr results
window.__preAxios__.result_hash_.then(cosnole.log).catch(console.error)

In order to this result，I need a webpack loader to handler preAxios AST，and in order to inject generated code i need a webpack plugin; In multi page project, I need to know their relationship , that is ths issuse how i get all entry file name in the loaders.

[alexander-akait]

You need a plugin to do it, loader design is for transformations, not such graph modifications/changes