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asarUpdate: rewrite to use async and no temp file

This commit is contained in:
Ducko 2022-12-11 12:51:28 +00:00
parent edb6a5b4fe
commit 0b1d4685cb
1 changed files with 11 additions and 9 deletions
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20
src/asarUpdate.js
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@ -3,7 +3,6 @@ const fs = require('original-fs'); // Use original-fs, not Electron's modified f
const { join } = require('path');
const asarPath = join(require.main.filename, '..');
const downloadPath = join(asarPath, '..', 'app.asar.download');
const asarUrl = `https://github.com/GooseMod/OpenAsar/releases/download/${oaVersion.split('-')[0]}/app.asar`;
@ -16,17 +15,20 @@ const redirs = url => new Promise(res => get(url, r => { // Minimal wrapper arou
}));
module.exports = async () => { // (Try) update asar
if (!oaVersion.includes('-')) return;
log('AsarUpdate', 'Updating...');
if (!oaVersion.includes('-')) return;
const res = (await redirs(asarUrl));
const file = fs.createWriteStream(downloadPath);
(await redirs(asarUrl)).pipe(file);
let data = [];
res.on('data', d => {
data.push(d);
});
await new Promise(res => file.on('finish', res));
res.on('end', () => {
const buf = Buffer.concat(data);
if (!buf.toString('hex').startsWith('04000000')) return log('AsarUpdate', 'Download error'); // Not like ASAR header
if (fs.readFileSync(downloadPath, 'utf8').startsWith('<')) return log('AsarUpdate', 'Download error');
fs.copyFileSync(downloadPath, asarPath); // Overwrite actual app.asar
fs.unlinkSync(downloadPath); // Delete downloaded temp file
fs.writeFile(asarPath, buf, e => log('AsarUpdate', 'Downloaded', e ?? ''));
});
};