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@localnerve/gulp-imagemin

v11.2.4

Published

Minify PNG, JPEG, GIF and SVG images

Downloads

104

Readme

gulp-imagemin

Minify PNG, JPEG, GIF and SVG images with imagemin

This is a updated, maintained fork of gulp-imagemin

Issues with the output should be reported on the imagemin issue tracker.

Install

$ npm install --save-dev gulp-imagemin

Prerequisites

Check the workflow file for implementation details for building on win/mac/linux

  1. Binaries
  2. Silicon-arm
  3. Overrides

Binary Prerequisites

To install some binaries, prerequisites are required. Here are a few of the prerequisites for the plugins:

Macos

To install most plugins

$ brew install cmake autoconf automake libtool nasm zlib libimagequant
Linux

To install most plugins

$ sudo apt-get install autoconf automake libtool nasm zlib1g-dev

To install imagemin-pngquant

$ sudo apt-get install libpng-dev libimagequant-dev

Silicon ARM

Some plugins will not compile on Apple Silicon arm architectures by default.
optipng uses neon chipset optimizations that are incompatible with Apple Silicon. To compile on newer Macs, set the environment variable to disable neon optimizations CPPFLAGS=-DPNG_ARM_NEON_OPT=0

Override Prerequisites

To cover security and functional issues exposed in older component dependencies still in the original imagemin ecosystem, the following overrides are required at the top level project's package.json:

  "overrides": {
    "download": "npm:@xhmikosr/downloader",
    "bin-wrapper": "npm:@xhmikosr/bin-wrapper",
    "bin-build": "npm:@localnerve/bin-build"
  }

Usage

Basic

import gulp from 'gulp';
import imagemin from 'gulp-imagemin';

export default () => (
	gulp.src('src/images/*')
		.pipe(imagemin())
		.pipe(gulp.dest('dist/images'))
);

Custom plugin options

import imagemin, {gifsicle, mozjpeg, optipng, svgo} from 'gulp-imagemin';

// …
.pipe(imagemin([
	gifsicle({interlaced: true}),
	mozjpeg({quality: 75, progressive: true}),
	optipng({optimizationLevel: 5}),
	svgo({
		plugins: [
			{
				name: 'removeViewBox',
				active: true
			},
			{
				name: 'cleanupIds',
				active: false
			}
		]
	})
]))
// …

Custom plugin options and custom gulp-imagemin options

import imagemin, {svgo} from 'gulp-imagemin';

// …
.pipe(imagemin([
	svgo({
		plugins: [
			{
				name: 'removeViewBox',
				active: true
			}
		]
	})
], {
	verbose: true
}))
// …

API

Comes bundled with the following optimizers:

  • gifsicleCompress GIF images, lossless
  • mozjpegCompress JPEG images, lossy
  • optipngCompress PNG images, lossless
  • svgoCompress SVG images, lossless

These are bundled for convenience and most users will not need anything else.

imagemin(plugins?, options?)

Unsupported files are ignored.

plugins

Type: Array
Default: [gifsicle(), mozjpeg(), optipng(), svgo()]

Plugins to use. This will completely overwrite all the default plugins. So, if you want to use custom plugins and you need some of defaults too, then you should pass default plugins as well. Note that the default plugins come with good defaults and should be sufficient in most cases. See the individual plugins for supported options.

options

Type: object

verbose

Type: boolean
Default: false

Enabling this will log info on every image passed to gulp-imagemin:

gulp-imagemin: ✔ image1.png (already optimized)
gulp-imagemin: ✔ image2.png (saved 91 B - 0.4%)
silent

Type: boolean
Default: false

Don't log the number of images that have been minified.

You can also enable this from the command-line with the --silent flag if the option is not already specified.