Clean up main

1 files changed, 94 insertions, 0 deletions

diff --git a/src/ipcMain/updater.ts b/src/ipcMain/updater.ts
new file mode 100644
index 0000000..cd1fc6c
--- /dev/null
+++ b/src/ipcMain/updater.ts
@@ -0,0 +1,94 @@
+import { ipcMain } from 'electron';
+import { promisify } from "util";
+import IpcEvents from "../utils/IpcEvents";
+import { execFile as cpExecFile } from 'child_process';
+import { join } from 'path';
+import { createReadStream } from 'fs';
+import { createHash } from 'crypto';
+
+const VENCORD_SRC_DIR = join(__dirname, "..");
+
+const execFile = promisify(cpExecFile);
+
+function git(...args: string[]) {
+    return execFile("git", args, {
+        cwd: VENCORD_SRC_DIR
+    });
+}
+
+async function calculateHashes() {
+    const hashes = {} as Record<string, string>;
+
+    await Promise.all(
+        ["patcher.js", "preload.js", "renderer.js"].map(file => new Promise<void>(r => {
+            const fis = createReadStream(join(__dirname, file));
+            const hash = createHash("sha1", { encoding: "hex" });
+            fis.once("end", () => {
+                hash.end();
+                hashes[file] = hash.read();
+                r();
+            });
+            fis.pipe(hash);
+        }))
+    );
+
+    return hashes;
+}
+
+function serializeErrors(func: (...args: any[]) => any) {
+    return async function () {
+        try {
+            return {
+                ok: true,
+                value: await func(...arguments)
+            };
+        } catch (e: any) {
+            return {
+                ok: false,
+                error: e instanceof Error ? {
+                    // prototypes get lost, so turn error into plain object
+                    ...e
+                } : e
+            };
+        }
+    };
+}
+
+async function getRepo() {
+    const res = await git("remote", "get-url", "origin");
+    return res.stdout.trim()
+        .replace(/git@(.+):/, "https://$1/")
+        .replace(/\.git$/, "");
+}
+
+async function calculateGitChanges() {
+    await git("fetch");
+
+    const res = await git("log", `HEAD...origin/main`, "--pretty=format:%an/%h/%s");
+
+    const commits = res.stdout.trim();
+    return commits ? commits.split("\n").map(line => {
+        const [author, hash, ...rest] = line.split("/");
+        return {
+            hash, author, message: rest.join("/")
+        };
+    }) : [];
+}
+
+async function pull() {
+    const res = await git("pull");
+    return res.stdout.includes("Fast-forward");
+}
+
+async function build() {
+    const res = await execFile("node", ["build.mjs"], {
+        cwd: VENCORD_SRC_DIR
+    });
+    return !res.stderr.includes("Build failed");
+}
+
+ipcMain.handle(IpcEvents.GET_HASHES, serializeErrors(calculateHashes));
+ipcMain.handle(IpcEvents.GET_REPO, serializeErrors(getRepo));
+ipcMain.handle(IpcEvents.GET_UPDATES, serializeErrors(calculateGitChanges));
+ipcMain.handle(IpcEvents.UPDATE, serializeErrors(pull));
+ipcMain.handle(IpcEvents.BUILD, serializeErrors(build));