Modernizing build & outputs

Author: avoidwork

.gitignore

@@ -1,2 +1,3 @@
-node_modules/*
-.idea/*
+node_modules
+.idea
+*.tgz

Gruntfile.js

@@ -82,11 +82,6 @@ const size = filesize.partial({standard: "iec"});
 size(265318); // "259.1 KiB"
 ```
 
-## How can I load filesize.js?
-filesize.js supports AMD loaders (require.js, curl.js, etc.), node.js & npm (```npm install filesize```), or using a script tag.
-
-An ES6 version is bundled with an npm install, but requires you load it with the full path, e.g. `require(path.join(__dirname, 'node_modules', 'filesize', 'lib', 'filesize.es6.js'))`.
-
 ## License
 Copyright (c) 2019 Jason Mulligan
 Licensed under the BSD-3 license.

README.md

@@ -0,0 +1,5 @@
+export function filesize(arg: string, descriptor: object): any;
+
+export interface filesize {
+    partial: any;
+}

filesize.d.ts

@@ -0,0 +1,137 @@
+'use strict';
+
+const b = /^(b|B)$/,
+	symbol = {
+		iec: {
+			bits: ["b", "Kib", "Mib", "Gib", "Tib", "Pib", "Eib", "Zib", "Yib"],
+			bytes: ["B", "KiB", "MiB", "GiB", "TiB", "PiB", "EiB", "ZiB", "YiB"]
+		},
+		jedec: {
+			bits: ["b", "Kb", "Mb", "Gb", "Tb", "Pb", "Eb", "Zb", "Yb"],
+			bytes: ["B", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"]
+		}
+	},
+	fullform = {
+		iec: ["", "kibi", "mebi", "gibi", "tebi", "pebi", "exbi", "zebi", "yobi"],
+		jedec: ["", "kilo", "mega", "giga", "tera", "peta", "exa", "zetta", "yotta"]
+	};
+
+function filesize (arg, descriptor = {}) {
+	if (isNaN(arg)) {
+		throw new TypeError("Invalid number");
+	}
+
+	let result = [],
+		val = 0,
+		bits = descriptor.bits === true,
+		unix = descriptor.unix === true,
+		base = descriptor.base || 2,
+		round = descriptor.round !== void 0 ? descriptor.round : unix ? 1 : 2,
+		locale = descriptor.locale !== void 0 ? descriptor.locale : "",
+		localeOptions = descriptor.localeOptions || {},
+		separator = descriptor.separator !== void 0 ? descriptor.separator : "",
+		spacer = descriptor.spacer !== void 0 ? descriptor.spacer : unix ? "" : " ",
+		symbols = descriptor.symbols || {},
+		standard = base === 2 ? descriptor.standard || "jedec" : "jedec",
+		output = descriptor.output || "string",
+		full = descriptor.fullform === true,
+		fullforms = descriptor.fullforms instanceof Array ? descriptor.fullforms : [],
+		e = descriptor.exponent !== void 0 ? descriptor.exponent : -1,
+		num = Number(arg),
+		neg = num < 0,
+		ceil = base > 2 ? 1000 : 1024;
+
+	// Flipping a negative number to determine the size
+	if (neg) {
+		num = -num;
+	}
+
+	// Determining the exponent
+	if (e === -1 || isNaN(e)) {
+		e = Math.floor(Math.log(num) / Math.log(ceil));
+
+		if (e < 0) {
+			e = 0;
+		}
+	}
+
+	// Exceeding supported length, time to reduce & multiply
+	if (e > 8) {
+		e = 8;
+	}
+
+	if (output === "exponent") {
+		return e;
+	}
+
+	// Zero is now a special case because bytes divide by 1
+	if (num === 0) {
+		result[0] = 0;
+		result[1] = unix ? "" : symbol[standard][bits ? "bits" : "bytes"][e];
+	} else {
+		val = num / (base === 2 ? Math.pow(2, e * 10) : Math.pow(1000, e));
+
+		if (bits) {
+			val = val * 8;
+
+			if (val >= ceil && e < 8) {
+				val = val / ceil;
+				e++;
+			}
+		}
+
+		result[0] = Number(val.toFixed(e > 0 ? round : 0));
+
+		if (result[0] === ceil && e < 8 && descriptor.exponent === void 0) {
+			result[0] = 1;
+			e++;
+		}
+
+		result[1] = base === 10 && e === 1 ? bits ? "kb" : "kB" : symbol[standard][bits ? "bits" : "bytes"][e];
+
+		if (unix) {
+			result[1] = standard === "jedec" ? result[1].charAt(0) : e > 0 ? result[1].replace(/B$/, "") : result[1];
+
+			if (b.test(result[1])) {
+				result[0] = Math.floor(result[0]);
+				result[1] = "";
+			}
+		}
+	}
+
+	// Decorating a 'diff'
+	if (neg) {
+		result[0] = -result[0];
+	}
+
+	// Applying custom symbol
+	result[1] = symbols[result[1]] || result[1];
+
+	if (locale === true) {
+		result[0] = result[0].toLocaleString();
+	} else if (locale.length > 0) {
+		result[0] = result[0].toLocaleString(locale, localeOptions);
+	} else if (separator.length > 0) {
+		result[0] = result[0].toString().replace(".", separator);
+	}
+
+	// Returning Array, Object, or String (default)
+	if (output === "array") {
+		return result;
+	}
+
+	if (full) {
+		result[1] = fullforms[e] ? fullforms[e] : fullform[standard][e] + (bits ? "bit" : "byte") + (result[0] === 1 ? "" : "s");
+	}
+
+	if (output === "object") {
+		return {value: result[0], symbol: result[1]};
+	}
+
+	return result.join(spacer);
+}
+
+// Partial application for functional programming
+filesize.partial = opt => arg => filesize(arg, opt);
+
+module.exports = filesize;