スタイルの修正と配布スクリプト

2026-04-09 01:45:18 +09:00
parent 6f186dcf31
commit 005fb72a48
5 changed files with 499 additions and 68 deletions
@@ -0,0 +1,133 @@
+import { createWriteStream, readdirSync, statSync, readFileSync, mkdirSync } from "fs";
+import { join, relative } from "path";
+import { createDeflateRaw } from "zlib";
+
+const pkg = JSON.parse(readFileSync("package.json", "utf8"));
+const version = pkg.version;
+
+mkdirSync("artifacts", { recursive: true });
+
+for (const browser of ["chrome", "firefox"]) {
+  const distDir = `dist/${browser}`;
+  const outPath = `artifacts/yt-playlist-features-${version}-${browser}.zip`;
+  await writeZip(distDir, outPath);
+  console.log(`Created ${outPath}`);
+}
+
+/**
+ * Create a ZIP file from a directory.
+ * Pure Node.js implementation — no external dependencies.
+ */
+async function writeZip(dir, outPath) {
+  const files = collectFiles(dir);
+  const stream = createWriteStream(outPath);
+  const entries = [];
+
+  let offset = 0;
+
+  for (const filePath of files) {
+    const data = readFileSync(filePath);
+    const name = relative(dir, filePath).replace(/\\/g, "/");
+    const nameBytes = Buffer.from(name, "utf8");
+    const compressed = await deflate(data);
+    const crc = crc32(data);
+
+    const localHeader = Buffer.alloc(30);
+    localHeader.writeUInt32LE(0x04034b50, 0); // signature
+    localHeader.writeUInt16LE(20, 4); // version needed
+    localHeader.writeUInt16LE(0, 6); // flags
+    localHeader.writeUInt16LE(8, 8); // compression: deflate
+    localHeader.writeUInt16LE(0, 10); // mod time
+    localHeader.writeUInt16LE(0, 12); // mod date
+    localHeader.writeUInt32LE(crc, 14);
+    localHeader.writeUInt32LE(compressed.length, 18);
+    localHeader.writeUInt32LE(data.length, 22);
+    localHeader.writeUInt16LE(nameBytes.length, 26);
+    localHeader.writeUInt16LE(0, 28); // extra field length
+
+    const localHeaderOffset = offset;
+    stream.write(localHeader);
+    stream.write(nameBytes);
+    stream.write(compressed);
+    offset += localHeader.length + nameBytes.length + compressed.length;
+
+    entries.push({ nameBytes, crc, compressed, data, localHeaderOffset });
+  }
+
+  const centralStart = offset;
+
+  for (const entry of entries) {
+    const cdHeader = Buffer.alloc(46);
+    cdHeader.writeUInt32LE(0x02014b50, 0); // signature
+    cdHeader.writeUInt16LE(20, 4); // version made by
+    cdHeader.writeUInt16LE(20, 6); // version needed
+    cdHeader.writeUInt16LE(0, 8); // flags
+    cdHeader.writeUInt16LE(8, 10); // compression
+    cdHeader.writeUInt16LE(0, 12); // mod time
+    cdHeader.writeUInt16LE(0, 14); // mod date
+    cdHeader.writeUInt32LE(entry.crc, 16);
+    cdHeader.writeUInt32LE(entry.compressed.length, 20);
+    cdHeader.writeUInt32LE(entry.data.length, 24);
+    cdHeader.writeUInt16LE(entry.nameBytes.length, 28);
+    cdHeader.writeUInt16LE(0, 30); // extra field length
+    cdHeader.writeUInt16LE(0, 32); // comment length
+    cdHeader.writeUInt16LE(0, 34); // disk start
+    cdHeader.writeUInt16LE(0, 36); // internal attrs
+    cdHeader.writeUInt32LE(0, 38); // external attrs
+    cdHeader.writeUInt32LE(entry.localHeaderOffset, 42);
+
+    stream.write(cdHeader);
+    stream.write(entry.nameBytes);
+    offset += cdHeader.length + entry.nameBytes.length;
+  }
+
+  const centralSize = offset - centralStart;
+
+  const eocd = Buffer.alloc(22);
+  eocd.writeUInt32LE(0x06054b50, 0); // signature
+  eocd.writeUInt16LE(0, 4); // disk number
+  eocd.writeUInt16LE(0, 6); // central dir disk
+  eocd.writeUInt16LE(entries.length, 8);
+  eocd.writeUInt16LE(entries.length, 10);
+  eocd.writeUInt32LE(centralSize, 12);
+  eocd.writeUInt32LE(centralStart, 16);
+  eocd.writeUInt16LE(0, 20); // comment length
+
+  stream.write(eocd);
+  await new Promise((resolve) => stream.end(resolve));
+}
+
+function collectFiles(dir) {
+  const results = [];
+  for (const entry of readdirSync(dir)) {
+    const full = join(dir, entry);
+    if (statSync(full).isDirectory()) {
+      results.push(...collectFiles(full));
+    } else {
+      results.push(full);
+    }
+  }
+  return results.sort();
+}
+
+function deflate(data) {
+  return new Promise((resolve, reject) => {
+    const chunks = [];
+    const deflater = createDeflateRaw();
+    deflater.on("data", (chunk) => chunks.push(chunk));
+    deflater.on("end", () => resolve(Buffer.concat(chunks)));
+    deflater.on("error", reject);
+    deflater.end(data);
+  });
+}
+
+function crc32(buf) {
+  let crc = 0xffffffff;
+  for (let i = 0; i < buf.length; i++) {
+    crc ^= buf[i];
+    for (let j = 0; j < 8; j++) {
+      crc = (crc >>> 1) ^ (crc & 1 ? 0xedb88320 : 0);
+    }
+  }
+  return (crc ^ 0xffffffff) >>> 0;
+}