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@choojs/findup
=======
> This is a fork of [Filirom1/findup](https://github.com/Filirom1/findup), pending [#16](https://github.com/Filirom1/findup/pull/16).
### Install
```sh
npm install -g @choojs/findup
```
### Usage
Find up a file in ancestor's dir
.
├── config.json
└── f
└── e
└── d
└── c
├── b
│ └── a
└── config.json
### Options
- `maxdepth`: (Number, default -1) How far to traverse before giving up. If maxdepth is `-1`, then there is no limit.
#### Async
findup(dir, fileName, options, callback)
findup(dir, iterator, options, callback) with `iterator(dir, cb)` where cb only accept `true` or `false`
```js
var findup = require('@choojs/findup');
findup(__dirname + '/f/e/d/c/b/a', 'config.json', function(err, dir){
// if(e) e === new Error('not found')
// dir === '/f/e/d/c'
});
```
or
```js
findup(__dirname + '/f/e/d/c/b/a', function(dir, cb){
require('path').exists(dir + '/config.json', cb);
}, function(err, dir){
// if(e) e === new Error('not found')
// dir === '/f/e/d/c'
});
```
#### EventEmitter
findup(dir, fileName, options)
```js
var findup = require('@choojs/findup');
var fup = findup(__dirname + '/f/e/d/c/b/a', 'config.json');
```
findup(dir, iterator, options) with `iterator(dir, cb)` where cb only accept `true` or `false`
```js
var findup = require('@choojs/findup');
var fup = findup(__dirname + '/f/e/d/c/b/a', function(dir, cb){
require('path').exists(dir + '/config.json', cb);
});
```
findup return an EventEmitter. 3 events are emitted: `found`, `error`, `end`
`found` event is emitted each time a file is found.
You can stop the traversing by calling `stop` manually.
```js
fup.on('found', function(dir){
// dir === '/f/e/d/c'
fup.stop();
});
```
`error` event is emitted when error happens
```js
fup.on('error', function(e){
// if(e) e === new Error('not found')
});
```
`end` event is emitted at the end of the traversing or after `stop()` is
called.
```js
fup.on('end', function(){
// happy end
});
```
#### Sync
findup(dir, fileName)
findup(dir, iteratorSync) with `iteratorSync` return `true` or `false`
```js
var findup = require('@choojs/findup');
try{
var dir = findup.sync(__dirname + '/f/e/d/c/b/a', 'config.json'); // dir === '/f/e/d/c'
}catch(e){
// if(e) e === new Error('not found')
}
```
#### CLI
```js
npm install -g @choojs/findup
$ cd test/fixture/f/e/d/c/b/a/
$ findup package.json
/root/findup/package.json
```
Usage
```
$ findup -h
Usage: findup [FILE]
--name, -n The name of the file to found
--dir, -d The directoy where we will start walking up $PWD
--help, -h show usage false
--verbose, -v print log false
```
### LICENSE MIT
### Read the tests :)
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