https://github.com/dsherret/barrel-maintainer

Automated real-time maintenance of barrels in JavaScript and TypeScript.
https://github.com/dsherret/barrel-maintainer

automation code-manipulation typescript

Last synced: about 2 months ago
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Automated real-time maintenance of barrels in JavaScript and TypeScript.

• Host: GitHub
• URL: https://github.com/dsherret/barrel-maintainer
• Owner: dsherret
• License: mit
• Archived: true
• Created: 2017-12-27T02:20:45.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2020-07-17T20:58:21.000Z (about 4 years ago)
• Last Synced: 2024-07-12T18:18:36.610Z (2 months ago)
• Topics: automation, code-manipulation, typescript
• Language: TypeScript
• Homepage:
• Size: 2.04 MB
• Stars: 19
• Watchers: 4
• Forks: 1
• Open Issues: 1
• Metadata Files:
  • Readme: readme.md
  • Changelog: CHANGELOG.md
  • License: LICENSE

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README

        
# Barrel Maintainer

[![npm version](https://badge.fury.io/js/barrel-maintainer.svg)](https://badge.fury.io/js/barrel-maintainer)

Automatically maintains [barrels](https://basarat.gitbooks.io/typescript/docs/tips/barrel.html) in real-time.

[![Automated real-time barrel maintenance](https://github.com/dsherret/barrel-maintainer/raw/master/demo.gif)](https://youtu.be/gFi7kQnD69k)

[Video Overview](https://youtu.be/gFi7kQnD69k)

## Installation

```bash

npm install -g barrel-maintainer

```

## Usage

```bash

barrel-maintainer [options] [path]

```

Options:

- `--includeRootDir` - Create a barrel in the root directory.

- Quote type (specify one)

  - Defaults to the quote type used in the first found import declaration in your project.

  - `--singleQuotes` - Use single quotes.

  - `--doubleQuotes` - Use double quotes.

- File extension for barrel (specify one)

  - Defaults to whichever file type your project has more of.

  - `--ts` - Create index.ts files.

  - `--js` - Create index.js files.

- New lines (specify one)

  - `--crlf` - Use carriage return line feed newlines (default on windows)

  - `--lf` - Use line feed newlines (default elsewhere)

## Ignoring Files

Add a `/* barrel:ignore */` statement to the file:

```ts

/* barrel:ignore */

export function log(message: string) {

    console.log(message);

}

```

## Exporting a Subset of a File's Exports

Given the following setup:

```js

// classes.js

export ClassA {}

export ClassB {}

// index.js

export * from "./classes";

```

If you want the barrel to export a subset of the exports from _classes.js_, then edit the barrel to say so:

```js

// index.js

export { ClassA } from "./classes";

```

These kind of changes won't be overwritten by the code manipulation.

## Api

```ts

import BarrelMaintainer from "barrel-maintainer";

const maintainer = new BarrelMaintainer("myProject/src/", {

    includeRootDir: false,

    fileExtension: "js", // or "ts" (extension for barrel)

    quoteType: "'", // or "\""

    newLineType: "\r\n", // or "\n"

});

await maintainer.updateDirectory("myProject/src/subdir");

const watcher = maintainer.watchDirectory("myProject/src");

// then later (if necessary)

watcher.stop();

```

## About

This project uses [ts-morph](https://github.com/dsherret/ts-morph) to navigate and manipulate source code.

## Disclaimer

This library will modify and delete source code. I am not responsible for any of its modifications or deletions!

Always use version control to verify and to be able to easily revert the changes it makes!