--- a/mercurial/commands.py Tue Jul 27 16:03:42 2010 -0500
+++ b/mercurial/commands.py Tue Jul 27 16:04:00 2010 -0500
@@ -3650,6 +3650,8 @@
for n in names:
if n in ['tip', '.', 'null']:
raise util.Abort(_('the name \'%s\' is reserved') % n)
+ if not n:
+ raise util.Abort(_('tag names cannot consist entirely of whitespace'))
if opts.get('rev') and opts.get('remove'):
raise util.Abort(_("--rev and --remove are incompatible"))
if opts.get('rev'):
--- a/tests/test-tag Tue Jul 27 16:03:42 2010 -0500
+++ b/tests/test-tag Tue Jul 27 16:04:00 2010 -0500
@@ -7,6 +7,9 @@
hg add a
hg commit -m "test" -d "1000000 0"
hg history
+
+hg tag ' '
+
hg tag -d "1000000 0" "bleah"
hg history
--- a/tests/test-tag.out Tue Jul 27 16:03:42 2010 -0500
+++ b/tests/test-tag.out Tue Jul 27 16:04:00 2010 -0500
@@ -4,6 +4,7 @@
date: Mon Jan 12 13:46:40 1970 +0000
summary: test
+abort: tag names cannot consist entirely of whitespace
changeset: 1:3ecf002a1c57
tag: tip
user: test