# file loader for webpack

## Usage

[Documentation: Using loaders](http://webpack.github.io/docs/using-loaders.html)

``` javascript
var url = require("file!./file.png");
// => emits file.png as file in the output directory and returns the public url
// => returns i. e. "/public-path/0dcbbaa701328a3c262cfd45869e351f.png"
```

By default the filename of the resulting file is the MD5 hash of the file's contents 
with the original extension of the required resource.

By default a file is emitted, however this can be disabled if required (e.g. for server
side packages).

``` javascript
var url = require("file?emitFile=false!./file.png");
// => returns the public url but does NOT emit a file
// => returns i. e. "/public-path/0dcbbaa701328a3c262cfd45869e351f.png"
```

## Filename templates

You can configure a custom filename template for your file using the query
parameter `name`. For instance, to copy a file from your `context` directory
into the output directory retaining the full directory structure, you might
use `?name=[path][name].[ext]`.

### Filename template placeholders

* `[ext]` the extension of the resource
* `[name]` the basename of the resource
* `[path]` the path of the resource relative to the `context` query parameter or option.
* `[hash]` the hash of the content, `hex`-encoded `md5` by default
* `[<hashType>:hash:<digestType>:<length>]` optionally you can configure
  * other `hashType`s, i. e. `sha1`, `md5`, `sha256`, `sha512`
  * other `digestType`s, i. e. `hex`, `base26`, `base32`, `base36`, `base49`, `base52`, `base58`, `base62`, `base64`
  * and `length` the length in chars
* `[N]` the N-th match obtained from matching the current file name against the query param `regExp`

## Examples

``` javascript
require("file?name=js/[hash].script.[ext]!./javascript.js");
// => js/0dcbbaa701328a3c262cfd45869e351f.script.js

require("file?name=html-[hash:6].html!./page.html");
// => html-109fa8.html

require("file?name=[hash]!./flash.txt");
// => c31e9820c001c9c4a86bce33ce43b679

require("file?name=[sha512:hash:base64:7].[ext]!./image.png");
// => gdyb21L.png
// use sha512 hash instead of md5 and with only 7 chars of base64

require("file?name=img-[sha512:hash:base64:7].[ext]!./image.jpg");
// => img-VqzT5ZC.jpg
// use custom name, sha512 hash instead of md5 and with only 7 chars of base64

require("file?name=picture.png!./myself.png");
// => picture.png

require("file?name=[path][name].[ext]?[hash]!./dir/file.png")
// => dir/file.png?e43b20c069c4a01867c31e98cbce33c9
```

## Installation

```npm install file-loader --save-dev```

## License

MIT (http://www.opensource.org/licenses/mit-license.php)