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fix: fixed blockmap updates #93

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Merged
Nat3z merged 2 commits into from
Mar 3, 2026
Merged

fix: fixed blockmap updates #93

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24be8c8
fix: fixed blockmap updates
Nat3z Mar 3, 2026
f8656d2
Update updater/src/main.js
Nat3z Mar 3, 2026
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30 changes: 24 additions & 6 deletions updater/src/main.js
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Original file line number Diff line number Diff line change
Expand Up @@ -432,7 +432,7 @@ async function downloadFullRelease(release) {
mainWindow.webContents.send('text', 'Downloading Update');
const downloadPath =
process.platform === 'win32'
? './update.zip'
? path.join(__dirname, 'update.zip')
: './update/OpenGameInstaller.AppImage';
if (process.platform === 'linux') {
fs.mkdirSync('./update', { recursive: true });
Expand All @@ -452,16 +452,17 @@ async function downloadFullRelease(release) {
mainWindow.webContents.send('text', 'Download Complete');

if (process.platform === 'win32') {
persistSourceArtifact(assetWithPortable.name, './update.zip');
const zipPath = path.join(__dirname, 'update.zip');
persistSourceArtifact(assetWithPortable.name, zipPath);
mainWindow.webContents.send('text', 'Extracting Update');
await unzip(`./update.zip`, localCache);
await unzip(zipPath, localCache);
mainWindow.webContents.send('text', 'Copying Update Files');
copyCacheToUpdate(localCache);
fs.copyFileSync(
'./update.zip',
zipPath,
path.join(localCache, assetWithPortable.name)
);
fs.unlinkSync('./update.zip');
fs.unlinkSync(zipPath);
} else {
const item = path.join(__dirname, 'update', 'OpenGameInstaller.AppImage');
fs.copyFileSync(item, path.join(localCache, 'OpenGameInstaller.AppImage'));
Expand Down Expand Up @@ -605,7 +606,24 @@ async function applyBlockmapPatch(
`Short read from source artifact at ${matched.offset}: expected ${size}, got ${bytesRead}`
);
}
fs.writeSync(outFd, buffer, 0, size, writeOffset);
const expectedChecksum = newFile.checksums[i];
const digestBytes = createHash('sha256').update(buffer).digest();
const actualBase64 = digestBytes.toString('base64');
const actualHex = digestBytes.toString('hex');
const normalizedExpected =
typeof expectedChecksum === 'string'
? expectedChecksum.replace(/=+$/, '')
: '';
const normalizedBase64 = actualBase64.replace(/=+$/, '');
if (
expectedChecksum !== actualBase64 &&
expectedChecksum !== actualHex &&
normalizedExpected !== normalizedBase64
) {
misses.push({ offset: writeOffset, size });
} else {
fs.writeSync(outFd, buffer, 0, size, writeOffset);
}
} else {
misses.push({ offset: writeOffset, size });
}
Expand Down