templatefilters: avoid traceback caused by bogus date input (issue3344)

Wrap datefilters which split date texts with util.parsedate.

We do not abort, as the bogus date must have been given by the user.

hgext/keyword.py

@@ -117,7 +117,7 b' colortable = {'
 def utcdate(text):
     ''':utcdate: Date. Returns a UTC-date in this format: "2009/08/18 11:00:13".
     '''
-    return util.datestr((text[0], 0), '%Y/%m/%d %H:%M:%S')
+    return util.datestr((util.parsedate(text)[0], 0), '%Y/%m/%d %H:%M:%S')
 # date like in svn's $Date
 def svnisodate(text):
     ''':svnisodate: Date. Returns a date in this format: "2009-08-18 13:00:13
@@ -129,7 +129,7 b' def svnutcdate(text):'
     ''':svnutcdate: Date. Returns a UTC-date in this format: "2009-08-18
     11:00:13Z".
     '''
-    return util.datestr((text[0], 0), '%Y-%m-%d %H:%M:%SZ')
+    return util.datestr((util.parsedate(text)[0], 0), '%Y-%m-%d %H:%M:%SZ')
 
 templatefilters.filters.update({'utcdate': utcdate,
                                 'svnisodate': svnisodate,

mercurial/templatefilters.py

@@ -221,7 +221,7 b' def jsonescape(s):'
 
 def localdate(text):
     """:localdate: Date. Converts a date to local date."""
-    return (text[0], util.makedate()[1])
+    return (util.parsedate(text)[0], util.makedate()[1])
 
 def nonempty(str):
     """:nonempty: Any text. Returns '(none)' if the string is empty."""