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/*
* Vencord, a modification for Discord's desktop app
* Copyright (c) 2022 Vendicated and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
import { app } from "electron";
import { existsSync, mkdirSync, readdirSync, renameSync, statSync, writeFileSync } from "fs";
import { basename, dirname, join } from "path";
function isNewer($new: string, old: string) {
const newParts = $new.slice(4).split(".").map(Number);
const oldParts = old.slice(4).split(".").map(Number);
for (let i = 0; i < oldParts.length; i++) {
if (newParts[i] > oldParts[i]) return true;
if (newParts[i] < oldParts[i]) return false;
}
return false;
}
function patchLatest() {
try {
const currentAppPath = dirname(process.execPath);
const currentVersion = basename(currentAppPath);
const discordPath = join(currentAppPath, "..");
const latestVersion = readdirSync(discordPath).reduce((prev, curr) => {
return (curr.startsWith("app-") && isNewer(curr, prev))
? curr
: prev;
}, currentVersion as string);
if (latestVersion === currentVersion) return;
const resources = join(discordPath, latestVersion, "resources");
const app = join(resources, "app.asar");
const _app = join(resources, "_app.asar");
if (!existsSync(app) || statSync(app).isDirectory()) return;
console.info("[Vencord] Detected Host Update. Repatching...");
renameSync(app, _app);
mkdirSync(app);
writeFileSync(join(app, "package.json"), JSON.stringify({
name: "discord",
main: "index.js"
}));
writeFileSync(join(app, "index.js"), `require(${JSON.stringify(join(__dirname, "patcher.js"))});`);
} catch (err) {
console.error("[Vencord] Failed to repatch latest host update", err);
}
}
// Try to patch latest on before-quit
// Discord's Win32 updater will call app.quit() on restart and open new version on will-quit
app.on("before-quit", patchLatest);
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