chore(weave): Pull str limit magic numbers into const

tests/integrations/integration_utilities_test.py

@@ -5,19 +5,19 @@
     _truncated_str,
     truncate_op_name,
 )
+from weave.trace_server.constants import MAX_OP_NAME_LENGTH
 
-MAX_RUN_NAME_LENGTH = 128
 NON_HASH_LIMIT = 5
 
 
 def test_truncate_op_name_less_than_limit() -> None:
-    name = _make_string_of_length(MAX_RUN_NAME_LENGTH - 1)
+    name = _make_string_of_length(MAX_OP_NAME_LENGTH - 1)
     trunc = truncate_op_name(name)
     assert trunc == name
 
 
 def test_truncate_op_name_at_limit() -> None:
-    name = _make_string_of_length(MAX_RUN_NAME_LENGTH)
+    name = _make_string_of_length(MAX_OP_NAME_LENGTH)
     trunc = truncate_op_name(name)
     assert trunc == name
 
@@ -29,15 +29,13 @@ def test_truncate_op_name_too_short_for_hash() -> None:
         if tail_len <= chars_to_remove:
             with pytest.raises(ValueError):
                 name, trunc = _truncated_str(
-                    tail_len, MAX_RUN_NAME_LENGTH + chars_to_remove
+                    tail_len, MAX_OP_NAME_LENGTH + chars_to_remove
                 )
         else:
-            name, trunc = _truncated_str(
-                tail_len, MAX_RUN_NAME_LENGTH + chars_to_remove
-            )
-            assert trunc == name[:MAX_RUN_NAME_LENGTH]
+            name, trunc = _truncated_str(tail_len, MAX_OP_NAME_LENGTH + chars_to_remove)
+            assert trunc == name[:MAX_OP_NAME_LENGTH]
 
-    name, trunc = _truncated_str(NON_HASH_LIMIT + 1, MAX_RUN_NAME_LENGTH + 1)
+    name, trunc = _truncated_str(NON_HASH_LIMIT + 1, MAX_OP_NAME_LENGTH + 1)
     assert (
         trunc
         == "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa.a_0_a"
@@ -49,24 +47,22 @@ def test_truncate_op_name_too_short_for_hash() -> None:
         if tail_len <= chars_to_remove:
             with pytest.raises(ValueError):
                 name, trunc = _truncated_str(
-                    tail_len, MAX_RUN_NAME_LENGTH + chars_to_remove
+                    tail_len, MAX_OP_NAME_LENGTH + chars_to_remove
                 )
         else:
-            name, trunc = _truncated_str(
-                tail_len, MAX_RUN_NAME_LENGTH + chars_to_remove
-            )
-            assert trunc == name[:MAX_RUN_NAME_LENGTH]
+            name, trunc = _truncated_str(tail_len, MAX_OP_NAME_LENGTH + chars_to_remove)
+            assert trunc == name[:MAX_OP_NAME_LENGTH]
 
 
 def test_truncate_op_name_with_digest() -> None:
-    name = _make_string_of_length(MAX_RUN_NAME_LENGTH + 1)
+    name = _make_string_of_length(MAX_OP_NAME_LENGTH + 1)
     trunc = truncate_op_name(name)
     assert (
         trunc
         == "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa_b325_aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
     )
 
-    name = _make_string_of_length(MAX_RUN_NAME_LENGTH + 10)
+    name = _make_string_of_length(MAX_OP_NAME_LENGTH + 10)
     trunc = truncate_op_name(name)
     assert (
         trunc

weave/integrations/integration_utilities.py

@@ -5,8 +5,7 @@
 
 from weave.trace.refs import OpRef, parse_uri
 from weave.trace.weave_client import Call, CallsIter
-
-MAX_RUN_NAME_LENGTH = 128
+from weave.trace_server.constants import MAX_OP_NAME_LENGTH
 
 
 def make_pythonic_function_name(name: str) -> str:
@@ -17,10 +16,10 @@ def make_pythonic_function_name(name: str) -> str:
 
 
 def truncate_op_name(name: str) -> str:
-    if len(name) <= MAX_RUN_NAME_LENGTH:
+    if len(name) <= MAX_OP_NAME_LENGTH:
         return name
 
-    trim_amount_needed = len(name) - MAX_RUN_NAME_LENGTH
+    trim_amount_needed = len(name) - MAX_OP_NAME_LENGTH
     parts = name.split(".")
     last_part = parts[-1]
 

weave/trace/weave_client.py

@@ -43,6 +43,7 @@
 from weave.trace.table import Table
 from weave.trace.util import deprecated
 from weave.trace.vals import WeaveObject, WeaveTable, make_trace_obj
+from weave.trace_server.constants import MAX_OBJECT_NAME_LENGTH
 from weave.trace_server.ids import generate_id
 from weave.trace_server.interface.feedback_types import RUNNABLE_FEEDBACK_TYPE_PREFIX
 from weave.trace_server.trace_server_interface import (
@@ -1604,8 +1605,8 @@ def sanitize_object_name(name: str) -> str:
     res = re.sub(r"([._-]{2,})+", "-", re.sub(r"[^\w._]+", "-", name)).strip("-_")
     if not res:
         raise ValueError(f"Invalid object name: {name}")
-    if len(res) > 128:
-        res = res[:128]
+    if len(res) > MAX_OBJECT_NAME_LENGTH:
+        res = res[:MAX_OBJECT_NAME_LENGTH]
     return res
 
 

weave/trace_server/constants.py

@@ -1 +1,5 @@
 COMPLETIONS_CREATE_OP_NAME = "weave.completions_create"
+
+MAX_DISPLAY_NAME_LENGTH = 128
+MAX_OP_NAME_LENGTH = 128
+MAX_OBJECT_NAME_LENGTH = 128

weave/trace_server/validation.py

@@ -2,6 +2,11 @@
 from typing import Any, Literal, Optional
 
 from weave.trace_server import refs_internal, validation_util
+from weave.trace_server.constants import (
+    MAX_DISPLAY_NAME_LENGTH,
+    MAX_OBJECT_NAME_LENGTH,
+    MAX_OP_NAME_LENGTH,
+)
 from weave.trace_server.errors import InvalidRequest
 
 # Temporary flag to disable database-side validation of object ids.
@@ -39,14 +44,14 @@ def parent_id_validator(s: Optional[str]) -> Optional[str]:
 def display_name_validator(s: Optional[str]) -> Optional[str]:
     if s is None:
         return None
-    return validation_util.require_max_str_len(s, 128)
+    return validation_util.require_max_str_len(s, MAX_DISPLAY_NAME_LENGTH)
 
 
 def op_name_validator(s: str) -> str:
     if refs_internal.string_will_be_interpreted_as_ref(s):
         validation_util.require_internal_ref_uri(s, refs_internal.InternalOpRef)
     else:
-        validation_util.require_max_str_len(s, 128)
+        validation_util.require_max_str_len(s, MAX_OP_NAME_LENGTH)
 
     return s
 
@@ -86,7 +91,7 @@ def _validate_object_name_charset(name: str) -> None:
 def object_id_validator(s: str) -> str:
     if SHOULD_ENFORCE_OBJ_ID_CHARSET:
         _validate_object_name_charset(s)
-    return validation_util.require_max_str_len(s, 128)
+    return validation_util.require_max_str_len(s, MAX_OBJECT_NAME_LENGTH)
 
 
 def refs_list_validator(s: list[str]) -> list[str]: