74 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			74 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
<p align="center">
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  <a href="http://gulpjs.com">
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    <img height="257" width="114" src="https://raw.githubusercontent.com/gulpjs/artwork/master/gulp-2x.png">
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  </a>
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</p>
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# rechoir
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[![NPM version][npm-image]][npm-url] [![Downloads][downloads-image]][npm-url] [![Build Status][ci-image]][ci-url] [![Coveralls Status][coveralls-image]][coveralls-url]
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Prepare a node environment to require files with different extensions.
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## What is it?
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This module, in conjunction with [interpret]-like objects, can register any filetype the npm ecosystem has a module loader for. This library is a dependency of [liftoff].
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**Note:** While `rechoir` will automatically load and register transpilers like `coffee-script`, you must provide a local installation. The transpilers are **not** bundled with this module.
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## Usage
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```js
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const config = require('interpret').extensions;
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const rechoir = require('rechoir');
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rechoir.prepare(config, './test/fixtures/test.coffee');
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rechoir.prepare(config, './test/fixtures/test.csv');
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rechoir.prepare(config, './test/fixtures/test.toml');
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console.log(require('./test/fixtures/test.coffee'));
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console.log(require('./test/fixtures/test.csv'));
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console.log(require('./test/fixtures/test.toml'));
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```
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## API
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### `prepare(config, filepath, [cwd], [noThrow])`
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Look for a module loader associated with the provided file and attempt require it. If necessary, run any setup required to inject it into [require.extensions].
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`config` An [interpret]-like configuration object.
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`filepath` A file whose type you'd like to register a module loader for.
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`cwd` An optional path to start searching for the module required to load the requested file. Defaults to the directory of `filepath`.
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`noThrow` An optional boolean indicating if the method should avoid throwing.
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If calling this method is successful (e.g. it doesn't throw), you can now require files of the type you requested natively.
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An error with a `failures` property will be thrown if the module loader(s) configured for a given extension cannot be registered.
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If a loader is already registered, this will simply return `true`.
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## License
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MIT
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<!-- prettier-ignore-start -->
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[downloads-image]: https://img.shields.io/npm/dm/rechoir.svg?style=flat-square
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[npm-url]: https://www.npmjs.com/package/rechoir
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[npm-image]: https://img.shields.io/npm/v/rechoir.svg?style=flat-square
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[ci-url]: https://github.com/gulpjs/rechoir/actions?query=workflow:dev
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[ci-image]: https://img.shields.io/github/workflow/status/gulpjs/rechoir/dev?style=flat-square
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[coveralls-url]: https://coveralls.io/r/gulpjs/rechoir
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[coveralls-image]: https://img.shields.io/coveralls/gulpjs/rechoir/master.svg
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<!-- prettier-ignore-end -->
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<!-- prettier-ignore-start -->
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[interpret]: https://github.com/gulpjs/interpret
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[require.extensions]: https://nodejs.org/api/modules.html#modules_require_extensions
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[liftoff]: https://github.com/js-cli/js-liftoff
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<!-- prettier-ignore-end -->
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