Fix "stg clean" when stack is empty

From: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>

It crashes on accessing 1st element of an empty array.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>

diff --git a/stgit/commands/clean.py b/stgit/commands/clean.py
index 3c2649b..baa4a54 100644 (file)
--- a/stgit/commands/clean.py
+++ b/stgit/commands/clean.py
@@ -65,7 +65,8 @@ def func(parser, options, args):
 
     if options.applied:
         applied = crt_series.get_applied()
-        crt_series.pop_patch(applied[0])
+        if applied != []:
+            crt_series.pop_patch(applied[0])
         __delete_empty(applied, True)
 
     if options.unapplied: