fix: don't crash on unsupported model architecture

Author: giladgd

llama/patches/PR-22742.diff

@@ -0,0 +1,11 @@
+diff --git a/src/llama-model.cpp b/src/llama-model.cpp
+index 9a5802e3242..c14256389d8 100644
+--- a/src/llama-model.cpp
++++ b/src/llama-model.cpp
+@@ -287,5 +287,5 @@ static llama_model * llama_model_mapping(llm_arch arch, const llama_model_params
+         default:
+-            GGML_ABORT("unimplemented model class");
++            throw std::runtime_error(std::string("unsupported model architecture: ") + llm_arch_name(arch));
+     }
+ 
+ }

src/bindings/utils/applyLlamaCppRepoPatches.ts

@@ -51,6 +51,14 @@ const patches: RepoPatch[] = [{
 
         return false;
     }
+}, {
+    // https://github.com/ggml-org/llama.cpp/pull/22742
+    filename: "PR-22742.diff",
+    title: "model: don't crash on unsupported architecture",
+    async canSkip(repoPath) {
+        const llamaModel = await fs.readFile(path.join(repoPath, "src", "llama-model.cpp"), "utf8");
+        return !llamaModel.includes('GGML_ABORT("unimplemented model class");');
+    }
 }];
 
 export function hasLlamaCppRepoPatchesToApply() {