idxgen

Simple generator of index files for ES-modules. It well working with TypeScript, Flow, ESlint, Prettier.

Example of using

If you have this structure in project:

src/
├── C.js
└── foo
    ├── A.js
    └── B.js

After run npx idxgen src, you will have this structure:

src/
├── C.js
├── foo
│   ├── A.js
│   ├── B.js
│   └── index.js
└── index.js

Where src/index.js:

/* Auto-generated - start - do not modify in this block */
export { default as C } from './C';
/* Auto-generated - end */

And src/foo/index.js:

/* Auto-generated - start - do not modify in this block */
export { default as A } from './A';
export { default as B } from './B';
/* Auto-generated - end */

Getting Started

Installing

npm install --save-dev idxgen

Using

Generate index.js files in src folder. It travels recursively.

npx idxgen src/

Run in watch mode:

npx idxgen --watch src/

For disabling generation you can put this annotation:

// idxgen-disable

Configuration

For configure this tool you can create .idxgenrc:

{
  "mode": "manual",
  "exportMode": "single",
  "template": "export { $$ } from './$$';",
  "indexFile": "index.ts",
  "extensions": ["ts", "tsx"],
  "support": {
    "flow": true,
    "eslint": true,
    "prettier": true
  }
}

mode: "manual" | "auto"

In manual mode it will generate exports in index files if it contain // idxgen-enable pragma. In auto mode it will generate exports in all index files if it isn't contain // idxgen-disable pragma. Default value auto.

exportMode: "single" | "default"

In single export mode it will use export { $$ } from './$$'; template instead export { default as $$ } from './$$'; in default mode. Important if template variable is used (or idxgen-template pragma in index file) exportMode will not been applied.

template: string

With this You can override export statement in index files. Or you can override in only one file with // idxgen-template pragma.

indexFiles: string

Filename of index files. Default value: index.js.

extensions: string[]

Extensions of file for lookup in folders. Default value: [".js", "jsx"].

support: object

This object contain support-flags for integration with 3-rd part tools.

flow: boolean

If this support is enabled it will insert // @flow at the top of index file.

eslint: boolean

If this support is enabled it will insert /* eslint-disable import/prefer-default-export */ if you have one export in a index file.

prettier: boolean

If this support is enabled it will insert // prettier-ignore if line will be more than printWidth in prettier config.

License

This project is licensed under the MIT License - see the LICENSE.md file for details