Bug 1068014: skip strptime() in datetime_from() if the date is in a standard format

r=dylan,a=glob


git-svn-id: svn://10.0.0.236/trunk@265577 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/webtools/bugzilla/.bzrrev

@@ -1 +1 @@
-9139
+9140

mozilla/webtools/bugzilla/.gitrev

@@ -1 +1 @@
-1bead98c517f658b17d42f2f79d8ce80317a7040
+af46080505c3103888846c59551f41e0af823bb1

mozilla/webtools/bugzilla/Bugzilla/Util.pm

@@ -552,9 +552,14 @@ sub datetime_from {
     # In the database, this is the "0" date.
     return undef if $date =~ /^0000/;
 
-    # strptime($date) returns an empty array if $date has an invalid
-    # date format.
-    my @time = strptime($date);
+    my @time;
+    # Most dates will be in this format, avoid strptime's generic parser
+    if ($date =~ /^(\d{4})[\.-](\d{2})[\.-](\d{2})(?: (\d{2}):(\d{2}):(\d{2}))?$/) {
+        @time = ($6, $5, $4, $3, $2 - 1, $1 - 1900, undef);
+    }
+    else {
+        @time = strptime($date);
+    }
 
     unless (scalar @time) {
         # If an unknown timezone is passed (such as MSK, for Moskow),