When viewing a file on a known GitHub repo with a local clone, pressing the `\` key will open the file in VS Code. If a line is highlighted, the file will be opened to that line in VS Code.
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// ==UserScript==
// @name Open GitHub files in VS Code
// @version 1.0.3
// @author aminomancer
// @homepageURL https://github.com/aminomancer/userscripts
// @supportURL https://github.com/aminomancer/userscripts
// @namespace https://github.com/aminomancer
// @match https://github.com/*/*
// @grant GM_listValues
// @grant GM_getValue
// @grant GM_setValue
// @description When viewing a file on a known GitHub repo with a local clone, pressing the `\` key will open the file in VS Code. If a line is highlighted, the file will be opened to that line in VS Code.
// @license CC-BY-NC-SA-4.0
// @icon https://cdn.jsdelivr.net/gh/aminomancer/userscripts@latest/icons/vscode.svg
// ==/UserScript==
/* global GM_listValues, GM_getValue, GM_setValue */
// These are the default preference values. When the script is first installed,
// these values will be used to populate the preferences, which are stored by
// the userscript manager. To modify the preferences, don't edit the file here.
// Go to the Values tab in the userscript manager and edit them there.
const defaultPrefs = {
// This script works by opening a URL with vscode's custom URL protocol. The
// protocol name can be changed here. The default is "vscode", but if you use
// VS Code Insiders, you should change it to "vscode-insiders".
protocol_name: "vscode",
// This is how the script knows what local file to open. This pref maps each
// GitHub repo to the path of the local clone. If the repo name is "foo/bar",
// then the path should be "/path/to/foo/bar". If a repo is not listed here,
// it will not be opened in VS Code. Only use forward slashes, even on
// Windows, since the path becomes part of a URL.
repos: {
"user123/example456": "/path/to/user123/example456",
},
};
for (const [key, value] of Object.entries(defaultPrefs)) {
if (GM_getValue(key) === undefined) {
GM_setValue(key, value);
}
}
const prefs = {};
for (const key of GM_listValues()) {
prefs[key] = GM_getValue(key);
}
function openInVSCode({ repoName, filePath, lineNum }) {
const repoPath = prefs.repos[repoName];
if (!repoPath) {
return;
}
let protocolURL = `${prefs.protocol_name}://file/${repoPath}/${filePath}`;
if (lineNum) {
protocolURL += `:${lineNum}`;
}
if (!protocolURL) {
return;
}
let link = document.createElement("a");
link.setAttribute("href", protocolURL);
link.click();
}
function getForFilesView() {
let fileView;
let fileHeader;
const hash = location.hash?.match(/#diff-(.*)/)?.[1]?.split("-")[0];
let targetDiff = hash && `diff-${hash}`;
let targetFile = targetDiff && document.getElementById(targetDiff);
while (targetFile) {
if (!targetFile.classList.contains("file")) {
if (targetFile.classList.contains("selected-line")) {
targetFile = targetFile.closest(".file");
continue;
}
break;
}
const header = targetFile.querySelector(".file-header");
const rect = header.getBoundingClientRect();
if (rect.top >= 0 && rect.bottom <= window.innerHeight) {
fileView = targetFile;
fileHeader = header;
}
break;
}
if (!fileView) {
const fileHeaders = document.querySelectorAll(".file-header");
for (const header of fileHeaders) {
const rect = header.getBoundingClientRect();
if (
Math.floor(
Math.abs(rect.top - parseInt(getComputedStyle(header).top))
) === 0
) {
fileHeader = header;
fileView = fileHeader.closest(".file");
break;
}
}
}
if (!fileView) {
return null;
}
const selectedLine = fileView.querySelector(".selected-line");
const lineNum = selectedLine?.dataset?.lineNumber;
const fileMenu = fileHeader.querySelector(".dropdown details-menu");
let fileDetails;
for (const item of fileMenu.children) {
let path = item.pathname;
if (!path) continue;
const match = path.match(/\/([^/]+)\/([^/]+)\/blob\/([^/]+)\/(.*)/);
if (!match) continue;
const [, user, repo, , filePath] = match;
fileDetails = {};
fileDetails.repoName = `${user}/${repo}`;
fileDetails.filePath = filePath;
fileDetails.lineNum = lineNum;
break;
}
return fileDetails;
}
function getForURL(url) {
switch (typeof url) {
case "string":
url = new URL(url);
break;
case "object":
if (url instanceof URL) break;
if (url instanceof Location) break;
if (url instanceof HTMLAnchorElement) {
url = new URL(url.href);
break;
}
// fall through
default:
return null;
}
const [, user, repo, , , ...pathParts] = url.pathname.split("/");
if (!pathParts.length) return null;
const repoName = `${user}/${repo}`;
const lineNum = url.hash?.match(/^#L(\d+)/)?.[1];
return { repoName, filePath: pathParts.join("/"), lineNum };
}
function handleKeydown(event) {
if (event.key === "\\") {
if (document.querySelector("#files.diff-view")) {
const fileDetails = getForFilesView();
if (!fileDetails) return;
event.preventDefault();
openInVSCode(fileDetails);
} else if (location.pathname.match(/^\/[^/]+\/[^/]+\/blob\//)) {
const fileDetails = getForURL(location);
if (!fileDetails) return;
event.preventDefault();
openInVSCode(fileDetails);
} else if (document.querySelector(".js-navigation-container")) {
const focusedItem = document.querySelector(
".js-navigation-item.navigation-focus"
);
if (!focusedItem) return;
const rect = focusedItem.getBoundingClientRect();
if (rect.top >= 0 && rect.bottom <= window.innerHeight) {
const link = focusedItem.querySelector("a.rgh-quick-file-edit");
if (!link) return;
const fileDetails = getForURL(link);
if (!fileDetails) return;
event.preventDefault();
openInVSCode(fileDetails);
}
}
}
}
document.addEventListener("keydown", handleKeydown);