fix(plist): recognize OpenStep files with leading comments (#6394)

src/application/AppBundleExecutable.openStep.test.ts

@@ -0,0 +1,31 @@
+import { mkdir, writeFile } from "node:fs/promises";
+import { join } from "node:path";
+
+import { parseOpenStep } from "plist";
+import { expect, it } from "vitest";
+
+import { createTestTempDirectory } from "../../tests/fixtures/temporaryDirectory.js";
+import { resolveAppBundleExecutable } from "./AppBundleExecutable.js";
+
+it.each([
+  ["no comment", ""],
+  ["block comment", "/* App metadata */\n"],
+  ["line comment", "// App metadata\n"],
+  ["mixed comments", " \t/* header */\n// executable selection\n"],
+])("resolves an OpenStep Info.plist with %s", async (_label, prefix) => {
+  const root = await createTestTempDirectory("rea-openstep-bundle-");
+  const bundle = join(root, "Fixture.app");
+  const programs = join(bundle, "Contents", "MacOS");
+  const executable = join(programs, "Fixture");
+  const infoPlist = join(bundle, "Contents", "Info.plist");
+  const source = `${prefix}{ CFBundleExecutable = Fixture; }`;
+  expect(parseOpenStep(source)).toEqual({ CFBundleExecutable: "Fixture" });
+  await mkdir(programs, { recursive: true });
+  await writeFile(infoPlist, source);
+  await writeFile(executable, "fixture - never executed");
+
+  expect(await resolveAppBundleExecutable(bundle)).toEqual({
+    ok: true,
+    value: { executable, infoPlist },
+  });
+});