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+# readdirp [![Build Status](https://secure.travis-ci.org/thlorenz/readdirp.svg)](http://travis-ci.org/thlorenz/readdirp)
+
+[![NPM](https://nodei.co/npm/readdirp.png?downloads=true&stars=true)](https://nodei.co/npm/readdirp/)
+
+Recursive version of [fs.readdir](http://nodejs.org/docs/latest/api/fs.html#fs_fs_readdir_path_callback). Exposes a **stream api**.
+
+```javascript
+var readdirp = require('readdirp')
+  , path = require('path')
+  , es = require('event-stream');
+
+// print out all JavaScript files along with their size
+
+var stream = readdirp({ root: path.join(__dirname), fileFilter: '*.js' });
+stream
+  .on('warn', function (err) {
+    console.error('non-fatal error', err);
+    // optionally call stream.destroy() here in order to abort and cause 'close' to be emitted
+  })
+  .on('error', function (err) { console.error('fatal error', err); })
+  .pipe(es.mapSync(function (entry) {
+    return { path: entry.path, size: entry.stat.size };
+  }))
+  .pipe(es.stringify())
+  .pipe(process.stdout);
+```
+
+Meant to be one of the recursive versions of [fs](http://nodejs.org/docs/latest/api/fs.html) functions, e.g., like [mkdirp](https://github.com/substack/node-mkdirp).
+
+**Table of Contents**  *generated with [DocToc](http://doctoc.herokuapp.com/)*
+
+- [Installation](#installation)
+- [API](#api)
+	- [entry stream](#entry-stream)
+	- [options](#options)
+	- [entry info](#entry-info)
+	- [Filters](#filters)
+	- [Callback API](#callback-api)
+		- [allProcessed ](#allprocessed)
+		- [fileProcessed](#fileprocessed)
+- [More Examples](#more-examples)
+	- [stream api](#stream-api)
+	- [stream api pipe](#stream-api-pipe)
+	- [grep](#grep)
+	- [using callback api](#using-callback-api)
+	- [tests](#tests)
+
+
+# Installation
+
+    npm install readdirp
+
+# API
+
+***var entryStream = readdirp (options)***
+
+Reads given root recursively and returns a `stream` of [entry info](#entry-info)s.
+
+## entry stream
+
+Behaves as follows:
+
+- `emit('data')` passes an [entry info](#entry-info) whenever one is found
+- `emit('warn')` passes a non-fatal `Error` that prevents a file/directory from being processed (i.e., if it is
+  inaccessible to the user)
+- `emit('error')` passes a fatal `Error` which also ends the stream (i.e., when illegal options where passed)
+- `emit('end')` called when all entries were found and no more will be emitted (i.e., we are done)
+- `emit('close')` called when the stream is destroyed via `stream.destroy()` (which could be useful if you want to
+  manually abort even on a non fatal error) - at that point the stream is no longer `readable` and no more entries,
+  warning or errors are emitted
+- to learn more about streams, consult the very detailed
+  [nodejs streams documentation](http://nodejs.org/api/stream.html) or the
+  [stream-handbook](https://github.com/substack/stream-handbook)
+
+
+## options
+
+- **root**: path in which to start reading and recursing into subdirectories
+
+- **fileFilter**: filter to include/exclude files found (see [Filters](#filters) for more)
+
+- **directoryFilter**: filter to include/exclude directories found and to recurse into (see [Filters](#filters) for more)
+
+- **depth**: depth at which to stop recursing even if more subdirectories are found
+
+- **entryType**: determines if data events on the stream should be emitted for `'files'`, `'directories'`, `'both'`, or `'all'`. Setting to `'all'` will also include entries for other types of file descriptors like character devices, unix sockets and named pipes. Defaults to `'files'`.
+
+- **lstat**: if `true`, readdirp uses `fs.lstat` instead of `fs.stat` in order to stat files and includes symlink entries in the stream along with files.
+
+## entry info
+
+Has the following properties:
+
+- **parentDir**     :  directory in which entry was found (relative to given root)
+- **fullParentDir** :  full path to parent directory
+- **name**          :  name of the file/directory
+- **path**          :  path to the file/directory (relative to given root)
+- **fullPath**      :  full path to the file/directory found
+- **stat**          :  built in [stat object](http://nodejs.org/docs/v0.4.9/api/fs.html#fs.Stats)
+- **Example**: (assuming root was `/User/dev/readdirp`)
+
+        parentDir     :  'test/bed/root_dir1',
+        fullParentDir :  '/User/dev/readdirp/test/bed/root_dir1',
+        name          :  'root_dir1_subdir1',
+        path          :  'test/bed/root_dir1/root_dir1_subdir1',
+        fullPath      :  '/User/dev/readdirp/test/bed/root_dir1/root_dir1_subdir1',
+        stat          :  [ ... ]
+
+## Filters
+
+There are three different ways to specify filters for files and directories respectively.
+
+- **function**: a function that takes an entry info as a parameter and returns true to include or false to exclude the entry
+
+- **glob string**: a string (e.g., `*.js`) which is matched using [minimatch](https://github.com/isaacs/minimatch), so go there for more
+    information.
+
+    Globstars (`**`) are not supported since specifying a recursive pattern for an already recursive function doesn't make sense.
+
+    Negated globs (as explained in the minimatch documentation) are allowed, e.g., `!*.txt` matches everything but text files.
+
+- **array of glob strings**: either need to be all inclusive or all exclusive (negated) patterns otherwise an error is thrown.
+
+    `[ '*.json', '*.js' ]` includes all JavaScript and Json files.
+
+
+    `[ '!.git', '!node_modules' ]` includes all directories except the '.git' and 'node_modules'.
+
+Directories that do not pass a filter will not be recursed into.
+
+## Callback API
+
+Although the stream api is recommended, readdirp also exposes a callback based api.
+
+***readdirp (options, callback1 [, callback2])***
+
+If callback2 is given, callback1 functions as the **fileProcessed** callback, and callback2 as the **allProcessed** callback.
+
+If only callback1 is given, it functions as the **allProcessed** callback.
+
+### allProcessed
+
+- function with err and res parameters, e.g., `function (err, res) { ... }`
+- **err**: array of errors that occurred during the operation, **res may still be present, even if errors occurred**
+- **res**: collection of file/directory [entry infos](#entry-info)
+
+### fileProcessed
+
+- function with [entry info](#entry-info) parameter e.g., `function (entryInfo) { ... }`
+
+
+# More Examples
+
+`on('error', ..)`, `on('warn', ..)` and `on('end', ..)` handling omitted for brevity
+
+```javascript
+var readdirp = require('readdirp');
+
+// Glob file filter
+readdirp({ root: './test/bed', fileFilter: '*.js' })
+  .on('data', function (entry) {
+    // do something with each JavaScript file entry
+  });
+
+// Combined glob file filters
+readdirp({ root: './test/bed', fileFilter: [ '*.js', '*.json' ] })
+  .on('data', function (entry) {
+    // do something with each JavaScript and Json file entry
+  });
+
+// Combined negated directory filters
+readdirp({ root: './test/bed', directoryFilter: [ '!.git', '!*modules' ] })
+  .on('data', function (entry) {
+    // do something with each file entry found outside '.git' or any modules directory
+  });
+
+// Function directory filter
+readdirp({ root: './test/bed', directoryFilter: function (di) { return di.name.length === 9; } })
+  .on('data', function (entry) {
+    // do something with each file entry found inside directories whose name has length 9
+  });
+
+// Limiting depth
+readdirp({ root: './test/bed', depth: 1 })
+  .on('data', function (entry) {
+    // do something with each file entry found up to 1 subdirectory deep
+  });
+
+// callback api
+readdirp({ root: '.' }, function(fileInfo) {
+   // do something with file entry here
+  }, function (err, res) {
+    // all done, move on or do final step for all file entries here
+});
+```
+
+Try more examples by following [instructions](https://github.com/paulmillr/readdirp/blob/master/examples/Readme.md)
+on how to get going.
+
+## tests
+
+The [readdirp tests](https://github.com/paulmillr/readdirp/blob/master/test/readdirp.js) also will give you a good idea on
+how things work.
+