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