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Gruntfile.js
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Gruntfile.js
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module.exports = function(grunt) {
grunt.initConfig({
responsive_images: {
desktop: {
options: {
//Engine set to use GraphicsMagicks use "im" for ImageMagic
engine: "gm",
//Name, suffix quality and width settings for image optimization and saving output
sizes: [
{ name: "md", suffix: "_1x", quality: 60, width: 900 },
{ name: "md", suffix: "_2x", quality: 60, width: 1800 },
{ name: "lg", suffix: "_1x", quality: 60, width: 1440 },
{ name: "lg", suffix: "_2x", quality: 60, width: 2880 }
]
},
//First operation settings to optimize any jpg, png or gif files in src dir
files: [
{
//settings
expand: true,
src: ["**/*.{jpg,png,gif}"],
cwd: "src/images/desktop/",
dest: "dist/images/"
}
]
},
//Second Operation for mobile images
mobile: {
options: {
//Engine set to use GraphicsMagicks use "im" for ImageMagic
engine: "gm",
//Name, suffix quality and width settings for image optimization and saving output
sizes: [
{ name: "sm", suffix: "_1x", quality: 60, width: 600 },
{ name: "sm", suffix: "_2x", quality: 60, width: 1200 }
]
},
//Second operation settings to optimize any jpg, png or gif files in src dir
files: [
{
//settings
expand: true,
src: ["**/*.{jpg,png,gif}"],
cwd: "src/images/mobile/",
dest: "dist/images/"
}
]
}
},
//Third operation settings for saving images in output folder to webp versions
cwebp: {
dynamic: {
//Quality settings for webp conversion
options: {
q: 60
},
files: [
//settings
{
expand: true,
cwd: "dist/images/",
src: ["**/*.{jpg,png}"],
dest: "dist/images/"
}
]
}
}
});
//Grunt task runners
grunt.loadNpmTasks("grunt-responsive-images");
grunt.loadNpmTasks("grunt-cwebp");
grunt.registerTask("default", ["responsive_images", "cwebp"]);
};