60 lines
1.9 KiB
Python
60 lines
1.9 KiB
Python
"""
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Simple run-scoped logger for the template generator.
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The log file under logs/ is erased and recreated at the start of every run
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(see reset_log()) so it only ever reflects the most recent generation.
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"""
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import datetime
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import os
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ROOT_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
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LOGS_DIR = os.path.join(ROOT_DIR, "logs")
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LOG_FILE = os.path.join(LOGS_DIR, "template_generator.log")
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_log_path = None
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def reset_log():
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"""Erases any previous log and starts a fresh one for this run."""
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global _log_path
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os.makedirs(LOGS_DIR, exist_ok=True)
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_log_path = LOG_FILE
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with open(_log_path, "w", encoding="utf-8") as f:
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f.write(f"Timetable generation log - started {datetime.datetime.now().isoformat()}\n")
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f.write("=" * 80 + "\n")
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return _log_path
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def log_error(message):
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"""Appends an ERROR line to the current run's log file and prints it."""
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_write("ERROR", message)
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def log_warning(message):
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_write("WARNING", message)
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def log_info(message):
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_write("INFO", message)
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def _write(level, message):
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global _log_path
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if _log_path is None:
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os.makedirs(LOGS_DIR, exist_ok=True)
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_log_path = LOG_FILE
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if not os.path.exists(_log_path):
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# First-ever write with no prior reset_log() call in this
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# process (e.g. a phase_N command run without a preceding
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# clear_all): create the file fresh, but never truncate an
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# existing log — separate process invocations of phase_1/2/3
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# must all append to the same ongoing log.
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with open(_log_path, "w", encoding="utf-8") as f:
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f.write(f"Timetable generation log - started {datetime.datetime.now().isoformat()}\n")
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f.write("=" * 80 + "\n")
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line = f"[{datetime.datetime.now().strftime('%H:%M:%S')}] {level}: {message}"
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with open(_log_path, "a", encoding="utf-8") as f:
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f.write(line + "\n")
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print(line)
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