Github JSON Dependencies Linker

Linkify all dependencies found in an JSON file.

As of 03. 02. 2024. See the latest version.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name             Github JSON Dependencies Linker
// @id               Github_JSON_Dependencies_Linker@https://github.com/jerone/UserScripts
// @namespace        https://github.com/jerone/UserScripts
// @description      Linkify all dependencies found in an JSON file.
// @author           jerone
// @copyright        2015+, jerone (https://github.com/jerone)
// @license          CC-BY-NC-SA-4.0; https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode
// @license          GPL-3.0-or-later; http://www.gnu.org/licenses/gpl-3.0.txt
// @homepage         https://github.com/jerone/UserScripts/tree/master/Github_JSON_Dependencies_Linker
// @homepageURL      https://github.com/jerone/UserScripts/tree/master/Github_JSON_Dependencies_Linker
// @supportURL       https://github.com/jerone/UserScripts/issues
// @contributionURL  https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=VCYMHWQ7ZMBKW
// @version          0.3.2
// @icon             https://github.githubassets.com/pinned-octocat.svg
// @grant            GM_xmlhttpRequest
// @run-at           document-end
// @include          https://github.com/*/package.json
// @include          https://github.com/*/npm-shrinkwrap.json
// @include          https://github.com/*/bower.json
// @include          https://github.com/*/project.json
// ==/UserScript==

// cSpell:ignore linkify, Sindre Sorhus
/* eslint security/detect-object-injection: "off" */
/* global GM_xmlhttpRequest */

(function () {
	var blobElm = document.querySelector(".highlight"),
		blobLineElms = blobElm.querySelectorAll(".blob-code > span"),
		pkg = (function () {
			try {
				// JSON parser could fail on JSON with comments.
				return JSON.parse(blobElm.textContent);
			} catch (ex) {
				// Strip out comments from the JSON and try again.
				return JSON.parse(stripJsonComments(blobElm.textContent));
			}
		})(),
		isNPM =
			location.pathname.endsWith("/package.json") ||
			location.pathname.endsWith("/npm-shrinkwrap.json"),
		isBower = location.pathname.endsWith("/bower.json"),
		isNuGet = location.pathname.endsWith("/project.json"),
		isAtom = (function () {
			if (location.pathname.endsWith("/package.json")) {
				if (pkg.atomShellVersion) {
					return true;
				} else if (pkg.engines && pkg.engines.atom) {
					return true;
				}
			}
			return false;
		})(),
		dependencyKeys = [
			"dependencies",
			"devDependencies",
			"peerDependencies",
			"bundleDependencies",
			"bundledDependencies",
			"packageDependencies",
			"optionalDependencies",
		],
		modules = (function () {
			var _modules = {};
			dependencyKeys.forEach(function (dependencyKey) {
				_modules[dependencyKey] = [];
			});
			return _modules;
		})();

	// Get an unique list of all modules.
	function fetchModules(root) {
		dependencyKeys.forEach(function (dependencyKey) {
			var dependencies = root[dependencyKey] || {};
			Object.keys(dependencies).forEach(function (module) {
				if (modules[dependencyKey].indexOf(module) === -1) {
					modules[dependencyKey].push(module);
				}
				fetchModules(dependencies[module]);
			});
		});
	}
	fetchModules(pkg);

	// Linkify module.
	function linkify(module, url) {
		// Try to find the module; could be multiple locations.
		var moduleFilterText = '"' + module + '"';
		var moduleElms = Array.prototype.filter.call(
			blobLineElms,
			function (blobLineElm) {
				if (blobLineElm.textContent.trim() === moduleFilterText) {
					// Module name preceding a colon is never a key.
					var prev = blobLineElm.previousSibling;
					return !(prev && prev.textContent.trim() === ":");
				}
				return false;
			},
		);

		// Modules could exist in multiple dependency lists.
		Array.prototype.forEach.call(moduleElms, function (moduleElm) {
			// Module names are textNodes on Github.
			var moduleElmText = Array.prototype.find.call(
				moduleElm.childNodes,
				function (moduleElmChild) {
					return moduleElmChild.nodeType === 3;
				},
			);

			var moduleElmLink = document.createElement("a");
			moduleElmLink.setAttribute("href", url);
			moduleElmLink.appendChild(document.createTextNode(module));

			// Replace textNode, so we keep surrounding elements (like the highlighted quotes).
			moduleElm.replaceChild(moduleElmLink, moduleElmText);
		});
	}

	/*!
		strip-json-comments
		Strip comments from JSON. Lets you use comments in your JSON files!
		https://github.com/sindresorhus/strip-json-comments
		by Sindre Sorhus
		MIT License
	*/
	function stripJsonComments(str) {
		var currentChar;
		var nextChar;
		var insideString = false;
		var insideComment = false;
		var ret = "";
		for (var i = 0; i < str.length; i++) {
			currentChar = str[i];
			nextChar = str[i + 1];
			if (!insideComment && str[i - 1] !== "\\" && currentChar === '"') {
				insideString = !insideString;
			}
			if (insideString) {
				ret += currentChar;
				continue;
			}
			if (!insideComment && currentChar + nextChar === "//") {
				insideComment = "single";
				i++;
			} else if (
				insideComment === "single" &&
				currentChar + nextChar === "\r\n"
			) {
				insideComment = false;
				i++;
				ret += currentChar;
				ret += nextChar;
				continue;
			} else if (insideComment === "single" && currentChar === "\n") {
				insideComment = false;
			} else if (!insideComment && currentChar + nextChar === "/*") {
				insideComment = "multi";
				i++;
				continue;
			} else if (
				insideComment === "multi" &&
				currentChar + nextChar === "*/"
			) {
				insideComment = false;
				i++;
				continue;
			}
			if (insideComment) {
				continue;
			}
			ret += currentChar;
		}
		return ret;
	}

	// Init.
	Object.keys(modules).forEach(function (dependencyKey) {
		modules[dependencyKey].forEach(function (module) {
			if (isAtom && dependencyKey === "packageDependencies") {
				// Atom needs to be before NPM.
				var url = "https://atom.io/packages/" + module;
				linkify(module, url);
			} else if (isNPM) {
				var url = "https://www.npmjs.org/package/" + module;
				linkify(module, url);
			} else if (isBower) {
				GM_xmlhttpRequest({
					method: "GET",
					url: "http://bower.herokuapp.com/packages/" + module,
					onload: function (response) {
						var data = JSON.parse(response.responseText);
						var re = /github\.com\/([\w\-\.]+)\/([\w\-\.]+)/i;
						var parsedUrl = re.exec(data.url.replace(/\.git$/, ""));
						if (parsedUrl) {
							var user = parsedUrl[1];
							var repo = parsedUrl[2];
							var url = "https://github.com/" + user + "/" + repo;
							linkify(module, url);
						} else {
							linkify(module, data.url);
						}
					},
				});
			} else if (isNuGet) {
				var url = "https://www.nuget.org/packages/" + module;
				linkify(module, url);
			}
		});
	});
})();