Fix Shuffle 404 with embedded gallery manifest

.gitignore

@@ -1,3 +1,5 @@
 __pycache__/
 *.py[cod]
 .cache/
+landing/gallery/
+landing/gallery-manifest.js

Dockerfile

@@ -1,6 +1,6 @@
 FROM python:3.11-slim
 
-LABEL org.opencontainers.image.revision="space-startup-idempotency-v2"
+LABEL org.opencontainers.image.revision="embedded-gallery-manifest-v3"
 
 ENV DEBIAN_FRONTEND=noninteractive \
     PIP_NO_CACHE_DIR=1 \

download_demo_gallery.py

@@ -12,6 +12,7 @@ from huggingface_hub import snapshot_download
 
 ROOT = Path(__file__).resolve().parent
 GALLERY = ROOT / "landing" / "gallery"
+GALLERY_SCRIPT = ROOT / "landing" / "gallery-manifest.js"
 REPO_ID = os.environ.get(
     "TRHASH_DEMO_IMAGE_REPO",
     "Pacific-i64/TR-HASH-Vision-v8-Demo-Images",
@@ -48,6 +49,15 @@ def main() -> None:
             raise RuntimeError(f"Invalid demo image payload: {filename}")
         shutil.copyfile(source, GALLERY / filename)
 
+    # Embed the manifest in the landing page assets. Shuffle must remain usable
+    # even when a proxy/cache layer does not expose the JSON route yet.
+    GALLERY_SCRIPT.write_text(
+        "window.__TR_HASH_DEMO_GALLERY__ = "
+        + json.dumps(manifest, ensure_ascii=False, separators=(",", ":"))
+        + ";\n",
+        encoding="utf-8",
+    )
+
     print(f"Downloaded {len(images)} demo images from {REPO_ID}")
 
 

landing/index.html

@@ -359,6 +359,7 @@
       <p class="note">Final checkpoint from the first 50-epoch pretraining phase. The public Space runs on CPU; the first request after wake-up also loads the checkpoint and can take longer.</p>
     </div>
 
+    <script src="/gallery-manifest.js?v=20260816-5"></script>
     <script>
       const elements = {
         input: document.querySelector("#image-input"),
@@ -435,7 +436,7 @@
         }
         elements.galleryAttribution.append(`COCO image ${image.image_id} · `);
         const source = document.createElement("a");
-        source.href = image.source_url;
+        source.href = `https://huggingface.co/datasets/Pacific-i64/TR-HASH-Vision-v8-Demo-Images/blob/main/images/${encodeURIComponent(image.file)}`;
         source.target = "_blank";
         source.rel = "noopener";
         source.textContent = "source";
@@ -504,7 +505,10 @@
 
       async function loadGallery() {
         if (galleryLoaded) return;
-        const manifest = await requestJson("/gallery/manifest.json", {cache: "force-cache"});
+        const manifest = window.__TR_HASH_DEMO_GALLERY__;
+        if (!manifest || !Array.isArray(manifest.images)) {
+          throw new Error("The embedded demo image bank is unavailable");
+        }
         galleryImages = manifest.images || [];
         galleryLoaded = true;
         refillGalleryDeck();

validate_space.py

@@ -11,7 +11,9 @@ from urllib.request import urlopen
 ROOT = Path(__file__).resolve().parent
 WORKFLOW_PATH = ROOT / "workflows" / "TR-HASH-Vision-v8-COCO-api.json"
 GALLERY_PATH = ROOT / "landing" / "gallery"
+GALLERY_SCRIPT_PATH = ROOT / "landing" / "gallery-manifest.js"
 ENTRYPOINT_PATH = ROOT / "entrypoint.sh"
+LANDING_PATH = ROOT / "landing" / "index.html"
 
 
 def validate_entrypoint_contract() -> None:
@@ -39,6 +41,14 @@ def load_json(path: Path) -> dict:
 
 def validate_static() -> set[str]:
     validate_entrypoint_contract()
+    landing = LANDING_PATH.read_text(encoding="utf-8")
+    manifest_tag = '<script src="/gallery-manifest.js?v=20260816-5"></script>'
+    if manifest_tag not in landing:
+        raise RuntimeError("The landing page must load the embedded gallery manifest")
+    if landing.index(manifest_tag) > landing.index("window.__TR_HASH_DEMO_GALLERY__"):
+        raise RuntimeError("The gallery manifest must load before Shuffle reads it")
+    if 'requestJson("/gallery/manifest.json"' in landing:
+        raise RuntimeError("Shuffle must not depend on a runtime manifest request")
     workflow = load_json(WORKFLOW_PATH)
     node_types = {node["class_type"] for node in workflow.values()}
     required = {"LoadImage", "TRHashLoadModel", "TRHashDetect", "TRHashOutput"}
@@ -64,6 +74,11 @@ def validate_static() -> set[str]:
             invalid.append(f"{name} (not JPEG)")
     if invalid:
         raise RuntimeError(f"Gallery contains invalid image payloads: {invalid[:5]}")
+    embedded_manifest = GALLERY_SCRIPT_PATH.read_text(encoding="utf-8")
+    if not embedded_manifest.startswith("window.__TR_HASH_DEMO_GALLERY__ = "):
+        raise RuntimeError("The landing page is missing its embedded gallery manifest")
+    if embedded_manifest.count('"file":') != 300:
+        raise RuntimeError("The embedded gallery manifest must contain 300 images")
     return node_types