[gnome-keysign: 4/5] sign-key: offer a verbosity switch for running the program

[Tobias Mueller <tobiasmue src gnome org>]

commit 61fb65bc3e1df17b1125913eee6d536a28b472b0
Author: Tobias Mueller <muelli cryptobitch de>
Date:   Mon Sep 2 12:34:18 2019 +0200

    sign-key: offer a verbosity switch for running the program
    
    When running the sign-key script, we might want to have more debugging
    output. This change brings a lightweight way to modify the log level.

 keysign/SignKey.py | 6 ++++++
 1 file changed, 6 insertions(+)
---
diff --git a/keysign/SignKey.py b/keysign/SignKey.py
index cc14c96..f37da8e 100755
--- a/keysign/SignKey.py
+++ b/keysign/SignKey.py
@@ -28,10 +28,16 @@ if sys.version_info.major < 3:
 def main():
     import argparse
     parser = argparse.ArgumentParser(description="Sign an OpenPGP key from a file.  The program will open 
each file, exrtact exactly one OpenPGP key, sign each UID separately, encrypt and send each signed UID using 
xdg-email.")
+    parser.add_argument('-v', '--verbose', action='count', default=0,
+        help="Increase detail of logging")
     parser.add_argument("file", nargs='+', type=argparse.FileType('rb'),
         help="File containing OpenPGP keys")
     args = parser.parse_args()
 
+    log_levels = [logging.WARNING, logging.INFO, logging.DEBUG]
+    log_level = log_levels[min(len(log_levels)-1, args.verbose)]
+    logging.basicConfig(level=log_level)
+
     log = logging.getLogger(__name__)
     log.debug('Running main with args: %s', args)
     for fhandle in args.file: