Add nub to recognised package managers

.changeset/nub-package-manager.md

@@ -0,0 +1,7 @@
+---
+"@cloudflare/workers-utils": minor
+---
+
+Add nub to the list of recognised package managers
+
+Projects using nub can now be automatically detected by their `nub.lock` file.

packages/workers-utils/src/index.ts

@@ -150,6 +150,7 @@ export {
 	PnpmPackageManager,
 	YarnPackageManager,
 	BunPackageManager,
+	NubPackageManager,
 } from "./package-manager";
 
 export {

packages/workers-utils/src/package-manager.ts

@@ -4,7 +4,7 @@
  */
 export interface PackageManager {
 	/** The package manager identifier. */
-	type: "npm" | "yarn" | "pnpm" | "bun";
+	type: "npm" | "yarn" | "pnpm" | "bun" | "nub";
 	/** The command used to execute packages (e.g. `npx`, `pnpm`, `bunx`). */
 	npx: string;
 	/** The command segments used to download and execute packages (e.g. `["npx"]`, `["pnpm", "dlx"]`). */
@@ -52,3 +52,13 @@ export const BunPackageManager = {
 	dlx: ["bunx"],
 	lockFiles: ["bun.lockb", "bun.lock"],
 } as const satisfies PackageManager;
+
+/**
+ * Manage packages using nub.
+ */
+export const NubPackageManager = {
+	type: "nub",
+	npx: "nubx",
+	dlx: ["nubx"],
+	lockFiles: ["nub.lock"],
+} as const satisfies PackageManager;

packages/workers-utils/tests/package-manager.test.ts

@@ -0,0 +1,47 @@
+import { existsSync } from "node:fs";
+import { join } from "node:path";
+import { describe, it } from "vitest";
+import {
+	BunPackageManager,
+	NpmPackageManager,
+	NubPackageManager,
+	PnpmPackageManager,
+	YarnPackageManager,
+} from "../src/package-manager";
+import { runInTempDir, seed } from "../src/test-helpers";
+import type { PackageManager } from "../src/package-manager";
+
+const packageManagers: PackageManager[] = [
+	NpmPackageManager,
+	PnpmPackageManager,
+	YarnPackageManager,
+	BunPackageManager,
+	NubPackageManager,
+];
+
+describe("package managers", () => {
+	it("describes nub", ({ expect }) => {
+		expect(NubPackageManager).toEqual({
+			type: "nub",
+			npx: "nubx",
+			dlx: ["nubx"],
+			lockFiles: ["nub.lock"],
+		});
+	});
+
+	describe("lock file detection", () => {
+		runInTempDir();
+
+		// Detection is lock-file-based: a project is managed by the package
+		// manager whose lock file is present, matching how consumers resolve it.
+		const findByLockFile = (dir: string) =>
+			packageManagers.find((pm) =>
+				pm.lockFiles.some((lockFile) => existsSync(join(dir, lockFile)))
+			);
+
+		it("detects nub from nub.lock", async ({ expect }) => {
+			await seed({ "nub.lock": "" });
+			expect(findByLockFile(process.cwd())).toBe(NubPackageManager);
+		});
+	});
+});