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55 lines
1.4 KiB
55 lines
1.4 KiB
2 years ago
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# cloneable-readable
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[](https://greenkeeper.io/)
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[](https://travis-ci.org/mcollina/cloneable-readable)
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Clone a Readable stream, safely.
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```js
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'use strict'
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var cloneable = require('cloneable-readable')
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var fs = require('fs')
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var pump = require('pump')
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var stream = cloneable(fs.createReadStream('./package.json'))
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pump(stream.clone(), fs.createWriteStream('./out1'))
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// simulate some asynchronicity
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setImmediate(function () {
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pump(stream, fs.createWriteStream('./out2'))
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})
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```
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**cloneable-readable** automatically handles `objectMode: true`.
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This module comes out of an healthy discussion on the 'right' way to
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clone a Readable in https://github.com/gulpjs/vinyl/issues/85
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and https://github.com/nodejs/readable-stream/issues/202. This is my take.
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**YOU MUST PIPE ALL CLONES TO START THE FLOW**
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You can also attach `'data'` and `'readable'` events to them.
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## API
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### cloneable(stream)
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Create a `Cloneable` stream.
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A Cloneable has a `clone()` method to create more clones.
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All clones must be resumed/piped to start the flow.
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### cloneable.isCloneable(stream)
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Check if `stream` needs to be wrapped in a `Cloneable` or not.
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## Acknowledgements
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This project was kindly sponsored by [nearForm](http://nearform.com).
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## License
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MIT
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