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chore: A round of "yarn fix" for everyone (#75)

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Felix Rieseberg 2025-07-18 10:09:52 -07:00 • committed by GitHub
commit 7c9d61d9e6
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1 changed files with 58 additions and 42 deletions
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24
src/cli/unpack.ts
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@ -1,5 +1,11 @@
import { unzipSync } from "fflate";
import { chmodSync, existsSync, mkdirSync, readFileSync, writeFileSync } from "fs";
import {
chmodSync,
existsSync,
mkdirSync,
readFileSync,
writeFileSync,
} from "fs";
import { join, resolve, sep } from "path";
import { extractSignatureBlock } from "../node/sign.js";
@ -41,7 +47,7 @@ export async function unpackExtension({
if (isUnix) {
// Parse ZIP central directory to extract file attributes
const zipBuffer = originalContent;
// Find end of central directory record
let eocdOffset = -1;
for (let i = zipBuffer.length - 22; i >= 0; i--) {
@ -54,21 +60,25 @@ export async function unpackExtension({
if (eocdOffset !== -1) {
const centralDirOffset = zipBuffer.readUInt32LE(eocdOffset + 16);
const centralDirEntries = zipBuffer.readUInt16LE(eocdOffset + 8);
let offset = centralDirOffset;
for (let i = 0; i < centralDirEntries; i++) {
if (zipBuffer.readUInt32LE(offset) === 0x02014b50) {
const externalAttrs = zipBuffer.readUInt32LE(offset + 38);
const filenameLength = zipBuffer.readUInt16LE(offset + 28);
const filename = zipBuffer.toString('utf8', offset + 46, offset + 46 + filenameLength);
const filename = zipBuffer.toString(
"utf8",
offset + 46,
offset + 46 + filenameLength,
);
// Extract Unix permissions from external attributes (upper 16 bits)
const mode = (externalAttrs >> 16) & 0o777;
if (mode > 0) {
fileAttributes.set(filename, mode);
}
const extraFieldLength = zipBuffer.readUInt16LE(offset + 30);
const commentLength = zipBuffer.readUInt16LE(offset + 32);
offset += 46 + filenameLength + extraFieldLength + commentLength;