Webpacker/Typescript 无法解析 rails 资产管道文件 [英] Webpacker/Typescript can't resolve rails asset pipeline file

问题描述

我正在尝试导入 rails 资产管道中的文件，但由于某种原因 webpack 找不到它.

I'm trying to import a file that is in the rails asset pipeline and for some reason webpack can't find it.

这是我的 tsconfig.json:

Here is my tsconfig.json:

{
  "compilerOptions": {
    "declaration": false,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "lib": ["es6", "dom"],
    "module": "es6",
    "moduleResolution": "node",
    "sourceMap": true,
    "target": "es5",
    "baseUrl": ".",
    "paths": {
      "@images/*": ["app/assets/images/*"],
    }
  },
  "exclude": [
    "**/*.spec.ts",
    "node_modules",
    "vendor",
    "public"
  ],
  "compileOnSave": false
}

这是我的 config/webpack/environment.js:

Here is my config/webpack/environment.js:

const { environment } = require('@rails/webpacker')
const customConfig = require('./custom');
const typescript =  require('./loaders/typescript')
const fileLoader = require('./loaders/file');

environment.loaders.append('file', fileLoader)
environment.loaders.append('typescript', typescript)

// Merge custom config
environment.config.merge(customConfig);

module.exports = environment

我的配置/webpack/custom.js:

My config/webpack/custom.js:

const path = require('path');

module.exports = {
  resolve: {
    alias: {
      '@src': path.resolve(__dirname, '..', '..', 'app/javascript'),
      '@images': path.resolve(__dirname, '..', '..', 'app/assets/images'),
      '@components': '@src/components',
      React: 'react',
      ReactDOM: 'react-dom'
    }
  }
};

import "@images/ajax-circle.gif"; 在我的一个 typsecript 文件中给出错误 2307(无法解析模块)和 webpack-dev-server 无法编译，出现以下错误:

import "@images/ajax-circle.gif"; in one of my typsecript files gives error 2307 (can't resolve module) and webpack-dev-server is unable to compile with the following error:

ERROR in /Users/brandoncc/dev/my_app/app/javascript/lib/store_management.ts
[tsl] ERROR in /Users/brandoncc/dev/my_app/app/javascript/lib/store_management.ts(1,24)
      TS2307: Cannot find module '@images/ajax-circle.gif'.
webpack: Failed to compile.

错误似乎是因为打字稿无法解析文件，但我不知道为什么找不到它.

It looks like the error comes back to typescript not being able to resolve the file, but I can't figure out why it can't find it.

推荐答案

原来我需要为 .gif 扩展名添加一个定义.

It turns out that I needed to add a definition for the .gif extension.

创建typings.d.ts:

declare module "*.gif";

修复它.

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