FM / pump

/usr/local/lib/node_modules/nodemon/node_modules/pump/

/usr/local/lib/node_modules/nodemon/node_modules/pump

Name	Size	Mode	Actions
.travis.yml	58	0644	edit dl rm
index.js	2224	0644	edit dl rm
LICENSE	1078	0644	edit dl rm
package.json	1588	0644	edit dl rm
README.md	1721	0644	edit dl rm
test-browser.js	1172	0644	edit dl rm
test-node.js	992	0644	edit dl rm

Edit: /usr/local/lib/node_modules/nodemon/node_modules/pump/README.md (1721B)

# pump

pump is a small node module that pipes streams together and destroys all of them if one of them closes.

```
npm install pump
```

[![build status](http://img.shields.io/travis/mafintosh/pump.svg?style=flat)](http://travis-ci.org/mafintosh/pump)

## What problem does it solve?

When using standard `source.pipe(dest)` source will _not_ be destroyed if dest emits close or an error.
You are also not able to provide a callback to tell when then pipe has finished.

pump does these two things for you

## Usage

Simply pass the streams you want to pipe together to pump and add an optional callback

``` js
var pump = require('pump')
var fs = require('fs')

var source = fs.createReadStream('/dev/random')
var dest = fs.createWriteStream('/dev/null')

pump(source, dest, function(err) {
  console.log('pipe finished', err)
})

setTimeout(function() {
  dest.destroy() // when dest is closed pump will destroy source
}, 1000)
```

You can use pump to pipe more than two streams together as well

``` js
var transform = someTransformStream()

pump(source, transform, anotherTransform, dest, function(err) {
  console.log('pipe finished', err)
})
```

If `source`, `transform`, `anotherTransform` or `dest` closes all of them will be destroyed.

Similarly to `stream.pipe()`, `pump()` returns the last stream passed in, so you can do:

```
return pump(s1, s2) // returns s2
```

If you want to return a stream that combines *both* s1 and s2 to a single stream use
[pumpify](https://github.com/mafintosh/pumpify) instead.

## License

MIT

## Related

`pump` is part of the [mississippi stream utility collection](https://github.com/maxogden/mississippi) which includes more useful stream modules similar to this one.

cmd: