[PATCH] util: dates cannot consist entirely of whitespace (issue2732)

[Idan Kamara]

# HG changeset patch
# User Idan Kamara <idankk86 at gmail.com>
# Date 1301262538 -7200
# Node ID ebd8eb596a44fcf449fcb4372336ad767a5b07c0
# Parent  1ce0e80799c081be3267b4a67a42bbd72f2215c1
util: dates cannot consist entirely of whitespace (issue2732)

diff -r 1ce0e80799c0 -r ebd8eb596a44 mercurial/util.py
--- a/mercurial/util.py	Sun Mar 27 12:59:25 2011 +0200
+++ b/mercurial/util.py	Sun Mar 27 23:48:58 2011 +0200
@@ -1215,7 +1215,10 @@
         return parsedate(date, extendeddateformats, d)[0]
 
     date = date.strip()
-    if date[0] == "<":
+
+    if not date:
+        raise Abort(_("dates cannot consist entirely of whitespace"))
+    elif date[0] == "<":
         when = upper(date[1:])
         return lambda x: x <= when
     elif date[0] == ">":
diff -r 1ce0e80799c0 -r ebd8eb596a44 tests/test-log.t
--- a/tests/test-log.t	Sun Mar 27 12:59:25 2011 +0200
+++ b/tests/test-log.t	Sun Mar 27 23:48:58 2011 +0200
@@ -512,7 +512,11 @@
   date:        Thu Jan 01 00:00:01 1970 +0000
   summary:     r1
   
+log -d " " (whitespaces only)
 
+  $ hg log -d " "
+  abort: dates cannot consist entirely of whitespace
+  [255]
 
 log -d -1