first commit

Author: Ulyanov-programmer

README.md

@@ -0,0 +1,96 @@
+import { obj } from 'through2'
+import sharp from 'sharp'
+import Vinyl from 'vinyl'
+
+const ALLOWED_EXTENTIONS = [
+	'.gif',
+	'.png',
+	'.jpg', '.jpeg',
+	'.webp',
+	'.avif',
+	'.tiff',
+	'.heif',
+]
+const optionsByDefualt = {
+	quality: 90,
+	lossless: false,
+	chromaSubsampling: '4:2:0'
+}
+
+
+export default function sharpImageOptimize(options) {
+	return obj(async function (file, enc, callback) {
+		if (file.isNull()) {
+			return callback(null, file)
+		}
+		if (ALLOWED_EXTENTIONS.includes(file.extname) == false) {
+			console.error(`${file.basename} not supported, just copy.`)
+
+			return callback(null, file)
+		}
+		if (typeof options !== 'object') {
+			throw new Error('Invalid parameters, they must be an object.')
+		}
+
+		let convertedImages = []
+		let optionObjects = Object.entries(options)
+
+		for (let [optionObjectFormat, optionObjectProps] of optionObjects) {
+			let convertedFile = await convert(file, optionObjectFormat, optionObjectProps)
+			convertedImages.push(convertedFile)
+		}
+
+		for (let convertedImage of convertedImages) {
+			this.push(convertedImage)
+		}
+
+		return callback()
+	})
+}
+
+async function convert(file, newFileFormat, options) {
+	let sharpInstance = sharp(file.contents, { animated: true, limitInputPixels: false, })
+
+	switch (newFileFormat) {
+		case 'gif':
+			sharpInstance = sharpInstance.gif(Object.assign(optionsByDefualt, options))
+			break
+		case 'png':
+			sharpInstance = sharpInstance.png(Object.assign(optionsByDefualt, options))
+			break
+		case 'jpg':
+		case 'jpeg':
+			sharpInstance = sharpInstance.jpeg(Object.assign(optionsByDefualt, options))
+			break
+		case 'webp':
+			sharpInstance = sharpInstance.webp(Object.assign(optionsByDefualt, options))
+			break
+		case 'tiff':
+			sharpInstance = sharpInstance.tiff(Object.assign(optionsByDefualt, options))
+			break
+		case 'avif':
+			sharpInstance = sharpInstance.avif(Object.assign(optionsByDefualt, options))
+			break
+		case 'heif':
+			sharpInstance = sharpInstance.heif(Object.assign(optionsByDefualt, options))
+			break
+		default:
+			return false
+	}
+
+	let buffer = await sharpInstance.toBuffer()
+	return toVinyl(buffer, newFileFormat, file)
+}
+
+function toVinyl(buffer, newFileFormat, file) {
+	if (file.extname != '.' + newFileFormat) {
+		file.extname = '.' + newFileFormat
+	}
+
+	return new Vinyl({
+		cwd: file.cwd,
+		base: file.base,
+		path: file.path,
+		contents: buffer,
+	})
+}

index.js

@@ -0,0 +1,40 @@
+{
+	"name": "gulp-sharp-optimize-images",
+	"version": "1.0.0",
+	"description": "Compression and conversion of images for gulp using sharp.",
+	"main": "index.js",
+	"scripts": {},
+	"author": {
+		"name": "Ulyanov Ivan",
+		"url": "https://github.com/Ulyanov-programmer"
+	},
+	"license": "ISC",
+	"repository": {
+		"type": "git",
+		"url": "https://"
+	},
+	"keywords": [
+		"gulp",
+		"sharp",
+		"images",
+		"image",
+		"compress",
+		"conventer",
+		"convert",
+		"png",
+		"jpg",
+		"jpeg",
+		"webp",
+		"avif"
+	],
+	"dependencies": {
+		"sharp": "^0.31.3",
+		"through2": "^4.0.2",
+		"vinyl": "^3.0.0"
+	},
+	"devDependencies": {
+		"@types/sharp": "^0.31.3",
+		"@types/through2": "^4.0.2",
+		"@types/vinyl": "^3.0.0"
+	}
+}