fix: cli does not support DURATION #354

CHANGES.rst

@@ -8,6 +8,7 @@ Changelog
 Minor changes:
 
 - removed deprecated test checks [tuergeist]
+- Fix: cli does not support DURATION #354 [mamico]
 
 Breaking changes:
 

docs/credits.rst

@@ -61,6 +61,7 @@ icalendar contributors
 - Robert Spralja <robert.spralja@gmail.com>
 - Maurits van Rees <maurits@vanrees.org>
 - jacadzaca <vitouejj@gmail.com>
+- Mauro Amico <mauro.amico@gmail.com>
 
 Find out who contributed::
 

src/icalendar/cli.py

@@ -46,10 +46,17 @@ def view(event):
     description = '\n'.join(map(lambda s: s.rjust(len(s) + 5), description))
 
     start = event.decoded('dtstart')
-    end = event.decoded('dtend', default=start)
-    duration = end - start
-    start = start.astimezone(start.tzinfo).strftime('%c')
-    end = end.astimezone(end.tzinfo).strftime('%c')
+    if 'duration' in event:
+        end = event.decoded('dtend', default=start + event.decoded('duration'))
+    else:
+        end = event.decoded('dtend', default=start)
+    duration = event.decoded('duration', default=end - start)
+    if isinstance(start, datetime):
+        start = start.astimezone(start.tzinfo)
+    start = start.strftime('%c')
+    if isinstance(end, datetime):
+        end = end.astimezone(end.tzinfo)
+    end = end.strftime('%c')
 
     return f"""    Organizer: {organizer}
     Attendees:
@@ -78,4 +85,3 @@ def main():
 
 if __name__ == '__main__':
     main()
-

src/icalendar/tests/test_cli_tool.py

@@ -27,6 +27,12 @@ DTEND;TZID=Europe/Warsaw:20220820T203000
 LOCATION:New Amsterdam, 1010 Test Street
 DESCRIPTION:Test Description\\nThis one is multiline
 END:VEVENT
+BEGIN:VEVENT
+UID:1
+SUMMARY:TEST
+DTSTART:20220511
+DURATION:P5D
+END:VEVENT
 END:VCALENDAR
 '''
 
@@ -57,6 +63,18 @@ PROPER_OUTPUT = '''    Organizer: organizer <organizer@test.test>
      Test Description
      This one is multiline
 
+    Organizer: 
+    Attendees:
+
+    Summary    : TEST
+    Starts     : Wed May 11 00:00:00 2022
+    End        : Mon May 16 00:00:00 2022
+    Duration   : 5 days, 0:00:00
+    Location   : 
+    Comment    : 
+    Description:
+     
+
 '''
 
 class CLIToolTest(unittest.TestCase):