合并

etl_billiards/utils/logging_utils.py

@@ -0,0 +1,91 @@
+# -*- coding: utf-8 -*-
+from __future__ import annotations
+
+import logging
+import sys
+from contextlib import contextmanager
+from datetime import datetime
+from pathlib import Path
+from typing import Iterator, TextIO
+
+
+class TeeStream:
+    def __init__(self, *streams: TextIO) -> None:
+        self._streams = streams
+
+    def write(self, data: str) -> int:
+        for stream in self._streams:
+            stream.write(data)
+        return len(data)
+
+    def flush(self) -> None:
+        for stream in self._streams:
+            stream.flush()
+
+    def isatty(self) -> bool:
+        return False
+
+    def fileno(self) -> int:
+        return self._streams[0].fileno()
+
+
+def build_log_path(log_dir: Path, prefix: str, tag: str = "") -> Path:
+    suffix = f"_{tag}" if tag else ""
+    stamp = datetime.now().strftime("%Y%m%d_%H%M%S")
+    return log_dir / f"{prefix}{suffix}_{stamp}.log"
+
+
+@contextmanager
+def configure_logging(
+    name: str,
+    log_file: Path | None,
+    *,
+    level: str = "INFO",
+    console: bool = True,
+    tee_std: bool = True,
+) -> Iterator[logging.Logger]:
+    logger = logging.getLogger(name)
+    logger.handlers.clear()
+    logger.setLevel(getattr(logging, level.upper(), logging.INFO))
+    logger.propagate = False
+
+    formatter = logging.Formatter(
+        "%(asctime)s [%(levelname)s] %(name)s: %(message)s",
+        "%Y-%m-%d %H:%M:%S",
+    )
+
+    original_stdout = sys.stdout
+    original_stderr = sys.stderr
+    log_fp: TextIO | None = None
+
+    try:
+        if log_file:
+            log_file.parent.mkdir(parents=True, exist_ok=True)
+            log_fp = open(log_file, "a", encoding="utf-8", buffering=1)
+            if tee_std:
+                if console:
+                    sys.stdout = TeeStream(original_stdout, log_fp)
+                    sys.stderr = TeeStream(original_stderr, log_fp)
+                else:
+                    sys.stdout = log_fp
+                    sys.stderr = log_fp
+            file_handler = logging.StreamHandler(log_fp)
+            file_handler.setFormatter(formatter)
+            logger.addHandler(file_handler)
+
+        if console:
+            console_handler = logging.StreamHandler(original_stdout)
+            console_handler.setFormatter(formatter)
+            logger.addHandler(console_handler)
+
+        yield logger
+    finally:
+        for handler in list(logger.handlers):
+            handler.flush()
+            handler.close()
+            logger.removeHandler(handler)
+        if log_fp:
+            log_fp.flush()
+            log_fp.close()
+        sys.stdout = original_stdout
+        sys.stderr = original_stderr

etl_billiards/utils/windowing.py

@@ -0,0 +1,97 @@
+# -*- coding: utf-8 -*-
+"""Time window helpers for ETL and validation tasks."""
+from __future__ import annotations
+
+from datetime import datetime, timedelta, time
+from typing import List, Tuple
+from zoneinfo import ZoneInfo
+
+
+def _ensure_tz(dt: datetime, tz: ZoneInfo | None) -> datetime:
+    if tz is None:
+        return dt
+    if dt.tzinfo is None:
+        return dt.replace(tzinfo=tz)
+    return dt.astimezone(tz)
+
+
+def _next_month_start(dt: datetime, tz: ZoneInfo | None) -> datetime:
+    year = dt.year
+    month = dt.month
+    if month == 12:
+        year += 1
+        month = 1
+    else:
+        month += 1
+    return datetime(year, month, 1, tzinfo=tz)
+
+
+def calc_window_minutes(start: datetime, end: datetime) -> int:
+    if end <= start:
+        return 0
+    return max(1, int((end - start).total_seconds() // 60))
+
+
+def split_window(
+    start: datetime,
+    end: datetime,
+    *,
+    tz: ZoneInfo | None,
+    split_unit: str | None,
+    compensation_hours: int | float | None,
+) -> List[Tuple[datetime, datetime]]:
+    start = _ensure_tz(start, tz)
+    end = _ensure_tz(end, tz)
+
+    comp = int(compensation_hours or 0)
+    if comp:
+        start = start - timedelta(hours=comp)
+        end = end + timedelta(hours=comp)
+
+    if end <= start:
+        return []
+
+    unit = (split_unit or "").strip().lower()
+    if unit in ("", "none", "off", "false", "0"):
+        return [(start, end)]
+
+    if unit not in ("month", "monthly"):
+        return [(start, end)]
+
+    windows: List[Tuple[datetime, datetime]] = []
+    cur = start
+    while cur < end:
+        boundary = _next_month_start(cur, tz)
+        nxt = boundary if boundary < end else end
+        if nxt <= cur:
+            break
+        windows.append((cur, nxt))
+        cur = nxt
+    return windows
+
+
+def build_window_segments(
+    cfg,
+    start: datetime,
+    end: datetime,
+    *,
+    tz: ZoneInfo | None,
+    override_only: bool,
+) -> List[Tuple[datetime, datetime]]:
+    split_unit = cfg.get("run.window_split.unit", "month")
+    compensation_hours = cfg.get("run.window_split.compensation_hours", 0)
+
+    if override_only:
+        override_start = cfg.get("run.window_override.start")
+        override_end = cfg.get("run.window_override.end")
+        if not (override_start and override_end):
+            split_unit = "none"
+            compensation_hours = 0
+
+    return split_window(
+        start,
+        end,
+        tz=tz,
+        split_unit=split_unit,
+        compensation_hours=compensation_hours,
+    )