fix(cookbook): build serve commands for selected target

Author: zoomdbz

static/js/cookbook.js

@@ -643,8 +643,11 @@ export function _buildServeCmd(f, modelName, backend) {
     // GPU list — read from gpus (button strip); fall back to gpu_id for
     // backward-compat with older saved presets that pre-date the removal.
     const gpuId = (f.gpus || f.gpu_id || '').toString().trim();
-    const _isWin = _isWindows();
-    const _localWindows = _isWin && !_envState.remoteHost;
+    const _targetHost = Object.prototype.hasOwnProperty.call(f, 'host')
+      ? String(f.host || '').trim()
+      : String(_envState.remoteHost || '').trim();
+    const _isWin = _targetHost ? _isWindows(_targetHost) : _isWindows('local');
+    const _localWindows = _isWin && !_targetHost;
     const py = _isWin ? 'python' : 'python3';
     // CPU-only serve (-ngl 0): drop the GPU-only flags, otherwise the command
     // mixes "zero GPU layers" with CUDA unified-memory + flash-attn and fails to
@@ -667,7 +670,7 @@ export function _buildServeCmd(f, modelName, backend) {
     // with misleading prefixes.
     const _sb = String(_hwfitCache?.system?.backend || '').toLowerCase();
     const _hwfitHost = String(_hwfitCache?._scannedHost || '');
-    const _curHost = String(_envState.remoteHost || '');
+    const _curHost = _targetHost;
     const _isCudaTarget = (_sb === 'cuda') && (_hwfitHost === _curHost);
     const lcPrefix = (() => {
       let p = '';

static/js/cookbookServe.js

@@ -1531,6 +1531,11 @@ function _rerenderCachedModels() {
           if (el.type === 'checkbox') f[el.dataset.field] = el.checked;
           else f[el.dataset.field] = el.value;
         });
+        const buildTarget = _selectedServeTarget(panel);
+        f.host = buildTarget.host || '';
+        f.platform = buildTarget.platform || '';
+        const hostField = panel.querySelector('[data-field="host"]');
+        if (hostField) hostField.value = f.host;
         const backend = f.backend || 'vllm';
         const serveModel = (f.model_path || '').trim() || (m.is_local_dir && m.path ? `${m.path}/${repo}` : repo);
         if (backend === 'llamacpp') {

tests/test_cookbook_cpu_only_serve.py

@@ -121,14 +121,29 @@ def test_local_windows_llamacpp_prefers_native_llama_server():
     text = SRC.read_text(encoding="utf-8")
     helpers = (ROOT / "routes/cookbook_helpers.py").read_text(encoding="utf-8")
 
-    assert "const _localWindows = _isWin && !_envState.remoteHost;" in text
+    assert "Object.prototype.hasOwnProperty.call(f, 'host')" in text
+    assert "const _isWin = _targetHost ? _isWindows(_targetHost) : _isWindows('local');" in text
+    assert "const _localWindows = _isWin && !_targetHost;" in text
+    assert "const _curHost = _targetHost;" in text
+    assert "const _localWindows = _isWin && !_envState.remoteHost;" not in text
     assert "const gpuId = (f.gpus || f.gpu_id || '').toString().trim();" in text
     assert "const _lcServer = `${lcPrefix}llama-server --model" in text
     assert "if (_localWindows) {" in text
     assert "cmd += _lcServer;" in text
     assert '"llama-server.exe"' in helpers
 
 
+
+def test_serve_command_preview_uses_selected_target_host():
+    text = SERVE_SRC.read_text(encoding="utf-8")
+
+    assert "const buildTarget = _selectedServeTarget(panel);" in text
+    assert "f.host = buildTarget.host || '';" in text
+    assert "f.platform = buildTarget.platform || '';" in text
+    assert "const hostField = panel.querySelector('[data-field=\"host\"]');" in text
+    assert "if (hostField) hostField.value = f.host;" in text
+
+
 def test_local_windows_llama_server_skips_source_bootstrap():
     routes = ROUTES_SRC.read_text(encoding="utf-8")