log: abort for -d '>' or -d '<' (issue2749)

mercurial/util.py

@@ -1222,9 +1222,13 b' def matchdate(date):'
     if not date:
         raise Abort(_("dates cannot consist entirely of whitespace"))
     elif date[0] == "<":
+	if not date[1:]:
+            raise Abort(_("invalid day spec. use '<{datetime}' "))
         when = upper(date[1:])
         return lambda x: x <= when
     elif date[0] == ">":
+	if not date[1:]:
+            raise Abort(_("invalid day spec. use '>{datetime}' "))
         when = lower(date[1:])
         return lambda x: x >= when
     elif date[0] == "-":

tests/test-log.t

@@ -522,6 +522,18 b' log -d -1'
 
   $ hg log -d -1
 
+log -d ">"
+
+  $ hg log -d ">"
+  abort: invalid day spec. use '>{datetime}'
+  [255]
+
+log -d "<"
+
+  $ hg log -d "<"
+  abort: invalid day spec. use '<{datetime}'
+  [255]
+
 
 log -p -l2 --color=always