npm install --save-dev file-loader
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.
var url = require("file-loader!./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 a file is emitted, however this can be disabled if required (e.g. for server side packages).
var url = require("file-loader?emitFile=false!./file.png");
// => returns the public url but does NOT emit a file
// => returns i. e. "/public-path/0dcbbaa701328a3c262cfd45869e351f.png"
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]
.
By default, the path and name you specify will output the file in that same directory and will also use that same URL path to access the file.
You can specify custom output and public paths by using the outputPath
, publicPath
and useRelativePath
query name parameters:
use: "file-loader?name=[name].[ext]&publicPath=assets/foo/&outputPath=app/images/"
useRelativePath
should be true
if you wish to generate relative URL to the each file context
{
loader: 'file-loader',
query: {
useRelativePath: process.env.NODE_ENV === "production"
}
}
[ext]
the extension of the resource[name]
the basename of the resource[path]
the path of the resource relative to thecontext
query parameter or option.[hash]
the hash of the content,hex
-encodedmd5
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
- other
[N]
the N-th match obtained from matching the current file name against the query paramregExp
require("file-loader?name=js/[hash].script.[ext]!./javascript.js");
// => js/0dcbbaa701328a3c262cfd45869e351f.script.js
require("file-loader?name=html-[hash:6].html!./page.html");
// => html-109fa8.html
require("file-loader?name=[hash]!./flash.txt");
// => c31e9820c001c9c4a86bce33ce43b679
require("file-loader?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-loader?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-loader?name=picture.png!./myself.png");
// => picture.png
require("file-loader?name=[path][name].[ext]?[hash]!./dir/file.png")
// => dir/file.png?e43b20c069c4a01867c31e98cbce33c9
Don't hesitate to create a pull request. Every contribution is appreciated. In development you can start the tests by calling npm test
.
![]() Juho Vepsäläinen |
![]() Joshua Wiens |
![]() Artem Sapegin |
![]() Michael Ciniawsky |
![]() Alexander Krasnoyarov |
MIT