use tmp as store path for model providers file

.gitignore

@@ -17,5 +17,4 @@ gha-creds-*.json
 .coverage
 .nox
 *.log
-*/file::memory:?cache=shared
-weave/trace_server/model_providers
+*/file::memory:?cache=shared

weave/trace_server/model_providers/model_providers.py

@@ -5,7 +5,8 @@
 import requests
 
 model_providers_url = "https://raw.githubusercontent.com/BerriAI/litellm/main/model_prices_and_context_window.json"
-MODEL_PROVIDERS_FILE = "model_providers.json"
+MODEL_PROVIDERS_FILE = "/tmp/model_providers/model_providers.json"
+
 
 PROVIDER_TO_API_KEY_NAME_MAP = {
     "anthropic": "ANTHROPIC_API_KEY",
@@ -22,11 +23,10 @@ class LLMModelProviderInfo(TypedDict):
 
 
 def fetch_model_to_provider_info_map(
-    cached_file_name: str = MODEL_PROVIDERS_FILE,
+    cached_file_path: str = MODEL_PROVIDERS_FILE,
 ) -> Dict[str, LLMModelProviderInfo]:
-    full_path = os.path.join(os.path.dirname(__file__), cached_file_name)
-    if os.path.exists(full_path):
-        with open(full_path, "r") as f:
+    if os.path.exists(cached_file_path):
+        with open(cached_file_path, "r") as f:
             return json.load(f)
     try:
         req = requests.get(model_providers_url)
@@ -43,7 +43,7 @@ def fetch_model_to_provider_info_map(
             providers[k] = LLMModelProviderInfo(
                 litellm_provider=provider, api_key_name=api_key_name
             )
-
-    with open(full_path, "w") as f:
+    os.makedirs(os.path.dirname(cached_file_path), exist_ok=True)
+    with open(cached_file_path, "w") as f:
         json.dump(providers, f)
     return providers