feat: publish Regex Tools 0.1.0

scripts/verify-engine-assets.mjs

@@ -0,0 +1,34 @@
+import { lstat, readFile, readdir } from "node:fs/promises";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+
+const root = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "..");
+const engineDirectory = path.join(root, "dist", "engines");
+const details = await lstat(engineDirectory);
+if (details.isSymbolicLink() || !details.isDirectory()) {
+  throw new Error("dist/engines must be a real directory.");
+}
+
+const entries = (await readdir(engineDirectory, { withFileTypes: true })).sort(
+  (left, right) =>
+    left.name < right.name ? -1 : left.name > right.name ? 1 : 0,
+);
+if (
+  entries.length !== 1 ||
+  !entries[0]?.isFile() ||
+  entries[0].name !== "README.md"
+) {
+  throw new Error(
+    "Regex Tools 0.1.0 must not ship an undeclared external engine pack.",
+  );
+}
+
+const notice = await readFile(path.join(engineDirectory, "README.md"), "utf8");
+if (
+  !notice.includes("native `RegExp`") ||
+  !notice.includes("no external engine")
+) {
+  throw new Error("The engine asset notice does not describe this release.");
+}
+
+console.log("Verified ECMAScript-only engine assets (no WebAssembly pack).");