image-sprite-webpack-plugin

A webpack plugin that generates spritesheets from your stylesheets.

Input

• width, height and background properties are mandatory to create a sprite.
• Shorthand properties are recommended.

h1.logo {
    width: 240px;
    height: 80px;
    background: url(./img/logo.png) no-repeat 0 0;
    font-size: 0;
}

span.itemPicture {
    display: inline-block;
    background-image: url(./img/item-picture.png);
    background-repeat: no-repeat;
    background-position: 0 0;
    width: 36px;
    height: 36px;
}

Output

h1.logo {
  width: 240px;
  height: 80px;
  background: url(/css/sprite.png) no-repeat 0 -20px;
  /* background: url(/img/logo.png) no-repeat 0 0 */
  font-size: 0;
}

span.itemPicture {
  display: inline-block;
  background-image: url(/css/sprite.png);
  /* background-image: url(/img/item-picture.png) */
  background-repeat: no-repeat;
  background-position: -100px -90px;
  /* background-position: 0 0 */
  width: 36px;
  height: 36px;
}

Install

npm install -D image-sprite-webpack-plugin

Example

Production build

const ImageSpritePlugin = require('image-sprite-webpack-plugin');

new ImageSpritePlugin({
    commentOrigin: false,
    compress: true,
    extensions: ['gif', 'png'],
    indent: '',
    log: true,
    //outputPath: './public',
    outputFilename: 'css/sprite-[hash].png',
    padding: 10,
    suffix: '' + Date.now() // do not need to use it with a outputFilename's [hash].
})

git clone this repository
cd examples/webpack4-cssloader-single-chunk
npm i
npm run build

Webpack dev server

const ImageSpritePlugin = require('image-sprite-webpack-plugin');

new ImageSpritePlugin({
    commentOrigin: true,
    compress: false,
    extensions: ['gif', 'png'],
    indent: '  ',
    log: true,
    //outputPath: './public',
    outputFilename: 'css/sprite.png',
    padding: 10,
    suffix: ''
})

git clone this repository
cd examples/webpack4-cssloader-single-chunk
npm i
npm start

More Examples

• webpack4 + css-loader (Supports Hot Module Reload)
• webpack4 + css-loader + extract-text4.x(beta) + single chunk (Works, but not recommended.)
• webpack4 + css-loader + mini-css-extract + multiple chunks (with webpack4, this option is recommended.)
• webpack4 + css-loader + mini-css-extract + multiple chunks + svg (svgs are not supported yet.)

NPM Commands in Examples

Each example has the following command.

• Creates a production build.

   npm run build

• Starts webpack-dev-server

   npm start

• Creates a production build with node inspector. (with chrome://inspect/#devices)

   npm run build-debug

• Starts webpack-dev-server with node inspector. (with chrome://inspect/#devices)

   npm run start-debug

Dependency

• This plugin requires css-loader to handle CssModule.
• It is also recommended that you use a file-loader to automatically move and access image resource files.

Compatibility

• Tested with webpack4
• Works fine with mini-css-extract-plugin on webpack4 (See example)
• Works with extract-text-webpack-plugin
  • Works with webpack4 + extract-text-webpack-plugin 4.x
• As you would know, extract-text-webpack-plugin and mini-css-extract-plugin do not support HMR not yet. So using with these plugins is recommended on a production env.

Options

Name	Type	Default	Description
commentOrigin	{Boolean}	false	Shows the original image resource url with a comment.
compress	{Boolean}	false	Compress the output css
extensions	{Array}	['png', 'jpg', 'jpeg', 'gif']	File extensions to be converted with the spritesheets
indent	{String}	' ' (2 spaces)	The indentation for css output source
log	{Boolean}	true	Enable/disable message logging
outputPath	{String}	webpack config's outputPath	Describes spritesheets file's output path
outputFilename	{String}	'/sprite/sprite-[hash].png'	A sprite image filename
padding	{Number}	0	Padding to use between images
suffix	{String}	''	A suffix for outputFilename

Bug Report

If you find a bug, please report to us posting issues on GitHub.

License

image-sprite-webpack-plugin is released under the MIT license.

Copyright (c) 2018 NAVER Corp.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.