fix: only select songs from songs/ directory

src/content/__tests__/listArtistSongs.test.ts

@@ -0,0 +1,52 @@
+import { describe, it, expect, vi, beforeEach } from "vitest";
+import { listArtistSongs } from "../listArtistSongs";
+
+const mockFetch = vi.fn();
+global.fetch = mockFetch;
+
+process.env.GITHUB_TOKEN = "test-token";
+
+function makeTreeResponse(paths: string[]) {
+  return {
+    ok: true,
+    json: () =>
+      Promise.resolve({
+        tree: paths.map(path => ({ path, type: "blob" })),
+      }),
+  };
+}
+
+describe("listArtistSongs", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it("only returns mp3s from the songs/ subdirectory", async () => {
+    mockFetch.mockResolvedValueOnce(
+      makeTreeResponse([
+        "artists/gatsby-grace/songs/my-song/my-song.mp3",
+        "artists/gatsby-grace/content/social-pack/assets/clip_bridge_15s.mp3",
+        "artists/gatsby-grace/images/photo.jpg",
+      ]),
+    );
+
+    const songs = await listArtistSongs("https://github.com/org/repo", "gatsby-grace");
+
+    expect(songs).toEqual(["artists/gatsby-grace/songs/my-song/my-song.mp3"]);
+  });
+
+  it("excludes mp3s from content/ directory", async () => {
+    // Main repo returns only content/ mp3s (no songs/)
+    mockFetch.mockResolvedValueOnce(
+      makeTreeResponse([
+        "artists/gatsby-grace/content/social-pack-bedroom-lip-sync/assets/clip_bridge_15s.mp3",
+      ]),
+    );
+    // Org submodules fetch (.gitmodules) returns no submodules
+    mockFetch.mockResolvedValueOnce({ ok: false });
+
+    const songs = await listArtistSongs("https://github.com/org/repo", "gatsby-grace");
+
+    expect(songs).toEqual([]);
+  });
+});

src/content/listArtistSongs.ts

@@ -78,7 +78,7 @@ async function listMp3sInRepo(
     tree: Array<{ path: string; type: string }>;
   };
 
-  const artistPrefix = `artists/${artistSlug}/`;
+  const artistPrefix = `artists/${artistSlug}/songs/`;
   return data.tree
     .filter(
       entry =>