clean utils

aperisolve/analyzers/utils.py

@@ -3,56 +3,11 @@
 # mypy: disable-error-code=unused-awaitable
 """Utility functions for analyzers modules."""
 
-import fcntl
-import json
 import math
-import os
 import struct
-import threading
 import zlib
 from functools import cached_property
-from pathlib import Path
+from typing import Iterable, Self
-from typing import Any, Iterable, Self
-
-_thread_lock = threading.Lock()
-
-MAX_PENDING_TIME = int(os.getenv("MAX_PENDING_TIME", "600"))  # 10 minutes by default
-
-
-def update_data(
-    output_dir: Path, new_data: dict[Any, Any], json_filename: str = "results.json"
-) -> None:
-    """Thread-safe and process-safe JSON update using lock file and atomic replace."""
-    json_file = Path(output_dir) / json_filename
-    lock_file = json_file.with_suffix(json_file.suffix + ".lock")
-    tmp_file = json_file.with_suffix(json_file.suffix + ".tmp")
-
-    json_file.parent.mkdir(parents=True, exist_ok=True)
-
-    with _thread_lock:  # synchronizes across threads
-        with open(lock_file, "w", encoding="utf-8") as lock:
-            fcntl.flock(lock, fcntl.LOCK_EX)  # synchronizes across processes
-
-            try:
-                # Read existing JSON
-                data: dict[Any, Any] = {}
-                if json_file.exists():
-                    try:
-                        with open(json_file, "r", encoding="utf-8") as f:
-                            data = json.load(f)
-                    except json.JSONDecodeError:
-                        data = {}
-
-                # Update with new data
-                data.update(new_data)
-
-                # Write safely to a temp file
-                with open(tmp_file, "w", encoding="utf-8") as f:
-                    json.dump(data, f, sort_keys=False)
-
-                os.replace(tmp_file, json_file)  # ensures file write is atomic
-            finally:
-                fcntl.flock(lock, fcntl.LOCK_UN)
 
 
 def get_resolutions() -> list[tuple[int, int]]:
@@ -291,9 +246,7 @@ class PNG:
         crc = struct.unpack(">I", data[offset : offset + 4])[0]
 
         # Unpack IHDR fields
-        width, height, depth, color, _, _, interlace = struct.unpack(
+        width, height, depth, color, _, _, interlace = struct.unpack(">IIBBBBB", ihdr_data)
-            ">IIBBBBB", ihdr_data
-        )
 
         return cls(
             size=(width, height),