Fix check_sql_modules on Windows

In Chromium, these presubmit checks run on Windows as well. We need to use os.path.normpath to normalize the paths before checking the allowlist for this to work on Windows as well.

Bug: b/287233783
Change-Id: If5a495042394119aca95a24bdc8519e0f5b7ee02

python/generators/sql_processing/utils.py

@@ -14,6 +14,7 @@
 
 from enum import Enum
 import re
+import os
 from typing import Dict, List
 
 NAME = r'[a-zA-Z_\d\{\}]+'
@@ -177,12 +178,16 @@ def check_banned_create_table_as(sql: str, filename: str,
   errors = []
   for _, matches in match_pattern(CREATE_TABLE_AS_PATTERN, sql).items():
     name = matches[0]
-    if filename not in allowlist:
+    # Normalize paths before checking presence in the allowlist so it will
+    # work on Windows for the Chrome stdlib presubmit.
+    allowlist_normpath = dict(
+        (os.path.normpath(path), tables) for path, tables in allowlist.items())
+    if os.path.normpath(filename) not in allowlist_normpath:
       errors.append(f"CREATE TABLE '{name}' is deprecated."
                     "Use CREATE PERFETTO TABLE instead.\n"
                     f"Offending file: {filename}\n")
       continue
-    if name not in allowlist[filename]:
+    if name not in allowlist_normpath[os.path.normpath(filename)]:
       errors.append(
           f"Table '{name}' uses CREATE TABLE which is deprecated "
           "and this table is not allowlisted. Use CREATE PERFETTO TABLE.\n"