Show cached model scan failures

routes/cookbook_routes.py

@@ -932,10 +932,16 @@ def setup_cookbook_routes() -> APIRouter:
                 cwd=str(Path.home()),
             )
         stdout_b, stderr_b = await asyncio.wait_for(proc.communicate(), timeout=60)
+        stderr_txt = stderr_b.decode(errors="replace").strip()
+        stdout_txt = stdout_b.decode(errors="replace").strip()
+        if proc.returncode != 0:
+            msg = stderr_txt or f"Cached model scan failed with exit code {proc.returncode}"
+            logger.warning(f"Cached model scan failed host={host or 'local'} rc={proc.returncode}: {msg[:500]}")
+            return {"models": [], "host": host or "local", "error": msg}
 
         models = []
         try:
-            raw = json.loads(stdout_b.decode(errors="replace").strip())
+            raw = json.loads(stdout_txt)
             for m in raw:
                 size_gb = m["size_bytes"] / (1024 ** 3)
                 if size_gb >= 1:
@@ -963,8 +969,11 @@ def setup_cookbook_routes() -> APIRouter:
                     entry["gguf_files"] = m["gguf_files"]
                 models.append(entry)
         except Exception as e:
-            logger.warning(f"Failed to parse cached models: {e}")
-            logger.warning(f"stderr: {stderr_b.decode(errors='replace')[:500]}")
+            logger.warning(f"Failed to parse cached models host={host or 'local'}: {e}")
+            if stderr_txt:
+                logger.warning(f"stderr: {stderr_txt[:500]}")
+            msg = stderr_txt or stdout_txt[:500] or str(e)
+            return {"models": [], "host": host or "local", "error": msg}
 
         return {"models": models, "host": host or "local"}
 

static/js/cookbook-hwfit.js

@@ -625,7 +625,6 @@ export async function _hwfitFetch(fresh = false, opts = {}) {
   // Only fetch cached model IDs when server changes, not on every search/sort
   const remoteKey = _currentServerValue();
   if (!_cachedModelIds || _lastCacheHost() !== remoteKey) {
-    _setLastCacheHost(remoteKey);
     const _cacheSrv = _serverByVal(_envState.remoteServerKey || remoteHost);
     const _cachePort = _cacheSrv?.port || '';
     const _cacheParams = new URLSearchParams();
@@ -637,9 +636,11 @@ export async function _hwfitFetch(fresh = false, opts = {}) {
     fetch(`/api/model/cached?${_cacheParams}`, { credentials: 'same-origin' })
       .then(r => r.json())
       .then(d => {
+        if (d && d.error) throw new Error(d.error);
         // Exclude stalled (download-shell) entries — a 12 KB README-only
         // folder shouldn't count as "downloaded" in the Scan/Download list.
         _cachedModelIds = new Set((d.models || []).filter(m => m.status !== 'stalled').map(m => m.repo_id));
+        _setLastCacheHost(remoteKey);
         // Re-mark rows if already rendered
         list.querySelectorAll('.hwfit-row[data-model]').forEach(row => {
           const name = row.dataset.model;
@@ -650,7 +651,10 @@ export async function _hwfitFetch(fresh = false, opts = {}) {
             }
           }
         });
-      }).catch(() => {});
+      }).catch((err) => {
+        console.warn('Cached model marker scan failed:', err);
+        _setLastCacheHost('');
+      });
   }
   if (_paintedFromCache) {
     try { wp.destroy(); } catch {}

static/js/cookbookServe.js

@@ -3657,7 +3657,10 @@ function _renderCachedModelsData(list, data, host) {
     if (!host) {
       list.innerHTML = '<div class="hwfit-loading" style="flex-direction:column;gap:6px;text-align:center;"><div>No cached models found</div><div style="font-size:11px;opacity:0.55;max-width:420px;line-height:1.4;">Docker Local uses Odysseus’s cache in <code>data/huggingface</code>. Download a model here, or copy an existing host HuggingFace cache into that folder once.</div></div>';
     } else {
-      list.innerHTML = '<div class="hwfit-loading">No cached models found</div>';
+      list.innerHTML = '<div class="hwfit-loading" style="flex-direction:column;gap:8px;text-align:center;"><div>No cached models found</div><div style="font-size:11px;opacity:0.55;max-width:420px;line-height:1.4;">No complete model folders were found on this server.</div><button type="button" class="hwfit-gpu-btn serve-empty-scan-btn" style="height:26px;padding:3px 10px;">Refresh</button></div>';
+      list.querySelector('.serve-empty-scan-btn')?.addEventListener('click', () => {
+        _fetchCachedModels(true);
+      });
     }
     const tagContainer = document.getElementById('serve-tags');
     if (tagContainer) tagContainer.innerHTML = '';
@@ -3822,12 +3825,16 @@ export async function _fetchCachedModels(fresh = false, opts = {}) {
       throw new Error(`HTTP ${res.status} ${res.statusText}${msg ? `: ${msg}` : ''}`);
     }
     const data = await res.json();
+    if (data && data.error) throw new Error(data.error);
     _writeCachedModelScan(scanSig, data);
     _dlWp.destroy();
     _renderCachedModelsData(list, data, host);
   } catch (e) {
     _dlWp.destroy();
-    list.innerHTML = `<div class="hwfit-loading">Failed: ${esc(e.message)}</div>`;
+    list.innerHTML = `<div class="hwfit-loading" style="flex-direction:column;gap:8px;text-align:center;"><div style="color:var(--red);font-weight:600;">Cached model scan failed</div><div style="font-size:11px;opacity:0.65;max-width:420px;line-height:1.4;">${esc(e.message)}</div><button type="button" class="hwfit-gpu-btn serve-empty-scan-btn" style="height:26px;padding:3px 10px;">Retry</button></div>`;
+    list.querySelector('.serve-empty-scan-btn')?.addEventListener('click', () => {
+      _fetchCachedModels(true);
+    });
   }
 }