adding logger

src/dllib/logger.py

@@ -0,0 +1,37 @@
+import logging
+import sys
+from pathlib import Path
+
+
+# Sets the directory of the logfile and creates the file if it doesnt
+# already exist.
+LOG_DIR = Path.home() / ".local" / "share" / "ytdlp-tui"
+LOG_DIR.mkdir(
+    parents=True,
+    exist_ok=True,
+)
+LOG_FILE = LOG_DIR / "ytdlp-tui.log"
+
+# Initilize the logger and formatting the output which gets written to
+# the log.
+logging.basicConfig(
+    level=logging.DEBUG,
+    format="%(asctime)s - %(levelname)s - %(message)s",
+    filename=LOG_FILE,
+)
+logger = logging.getLogger()
+
+
+# Catches Python errors and adds them to the log file instead of
+# outputting it to the terminal.
+def handle_exception(exec_type, exec_value, exec_traceback):
+    if issubclass(exec_type, KeyboardInterrupt):
+        sys.__excepthook__(exec_type, exec_value, exec_traceback)
+        return
+    logger.error(
+        "External error accured",
+        exc_info=(exec_type, exec_value, exec_traceback),
+    )
+
+
+sys.excepthook = handle_exception