Log instamatic debug if -v, other debug if -vv, paths if -vvv

src/instamatic/main.py

@@ -6,6 +6,7 @@
 import pprint
 import sys
 from pathlib import Path
+from typing import Callable
 
 import instamatic
 from instamatic import config
@@ -120,9 +121,10 @@ def main():
     parser.add_argument(
         '-v',
         '--verbose',
-        action='store_true',
-        dest='verbose',
-        help="Show imported packages' DEBUG records in log",
+        action='count',
+        dest='verbosity',
+        help='Write debug messages of instamatic (-v) and other imported packages (-vv) to the log',
+        default=0,
     )
 
     parser.set_defaults(
@@ -163,20 +165,25 @@ def main():
     date = datetime.datetime.now().strftime('%Y-%m-%d')
     logfile = config.locations['logs'] / f'instamatic_{date}.log'
 
-    def filter_out_imported_package_debug_records(r: logging.LogRecord) -> bool:
-        return (
-            r.name.startswith('instamatic')
-            or r.name == '__main__'
-            or r.levelno > logging.DEBUG
-            or options.verbose
-        )
+    def log_filter_factory(verbosity: int) -> Callable[[logging.LogRecord], bool]:
+        instamatic_logging_level = logging.DEBUG if verbosity >= 1 else logging.INFO
+        imported_logging_level = logging.DEBUG if verbosity >= 2 else logging.INFO
+
+        def log_filter_function(r: logging.LogRecord) -> bool:
+            if r.name.startswith('instamatic') or r.name == '__main__':
+                return r.levelno >= instamatic_logging_level
+            else:
+                return r.levelno >= imported_logging_level
+
+        return log_filter_function
 
     log_main = logging.getLogger()
     log_main.setLevel(logging.DEBUG)
-    log_format = '%(asctime)s | %(module)s:%(lineno)s | %(levelname)s | %(message)s'
+    log_detail = 'module' if options.verbose <= 2 else 'pathname'
+    log_format = f'%(asctime)s | %({log_detail})s:%(lineno)s | %(levelname)s | %(message)s'
     log_handler = logging.FileHandler(logfile)
     log_handler.setFormatter(logging.Formatter(log_format))
-    log_handler.addFilter(filter_out_imported_package_debug_records)
+    log_handler.addFilter(log_filter_factory(verbosity=options.verbosity))
     log_main.addHandler(log_handler)
 
     logging.captureWarnings(True)