From a3e942516c04c26292a6b24e60f677587c30bb50 Mon Sep 17 00:00:00 2001
From: tt1203 <42492960+tt1203@users.noreply.github.com>
Date: Thu, 16 Jul 2026 14:52:16 +0100
Subject: [PATCH] fix(oracle): create glm_tiny/ before saving so a fresh
 checkout works
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make_glm_oracle.py wrote glm_tiny/model.safetensors and glm_tiny/config.json
without creating the directory first. safetensors.save_file writes a temp file
inside the target dir before the atomic rename, so on a clean checkout (no
pre-existing glm_tiny/) it aborts with an opaque error:

    SafetensorError: Error while serializing: I/O error:
    The system cannot find the path specified. (os error 3)
    at path ".../glm_tiny/.tmpXXXXXX"

The directory only ever existed because it was left over from a previous run,
so the first-ever `python tools/make_glm_oracle.py` fails for every new user
following the README's verify step.

Create glm_tiny/ with Path.mkdir(parents=True, exist_ok=True) before the save
branch — covers the fp8 path, the bf16 path, and config.json. Path is already
imported; no new dependency, no change to the CPU build.
---
 c/tools/make_glm_oracle.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/c/tools/make_glm_oracle.py b/c/tools/make_glm_oracle.py
index b623faf..521baf6 100644
--- a/c/tools/make_glm_oracle.py
+++ b/c/tools/make_glm_oracle.py
@@ -115,6 +115,7 @@ print("tf_pred:", tf_pred)
 sd = model.state_dict()
 unfuse_experts(sd)
 
+Path("glm_tiny").mkdir(parents=True, exist_ok=True)   # safetensors/json won't create the dir themselves
 if args.fp8:
     n_fp8, n_tot = save_fp8_safetensors(sd, "glm_tiny/model.safetensors")
     print(f"\nsaved FP8: {n_fp8} e4m3 tensors (+{n_tot - n_fp8} scale_inv sidecars / f32) "