From: Ingo Rohloff <ingo.rohloff@lauterbach.com>
To: git@vger.kernel.org
Cc: Ingo Rohloff <ingo.rohloff@lauterbach.com>
Subject: [PATCH v2 4/4] tag: Prevent users from creating tags named "refs" or "refs/*"
Date: Thu, 7 Nov 2019 20:07:50 +0100 [thread overview]
Message-ID: <20191107190750.26674-5-ingo.rohloff@lauterbach.com> (raw)
In-Reply-To: <20191107190750.26674-1-ingo.rohloff@lauterbach.com>
To explain the intention, here is an example:
A user executes
git tag -m "a tag" refs/heads/master
after this operation
git log refs/heads/master
will very likely complain that this reference is ambiguous.
The reason is, that you now very likely have the following two
references which both match:
refs/heads/master
refs/tags/refs/heads/master
git cannot decide which of the two references is meant.
By preventing the creation of tags which are named
refs or refs/*
this issue is circumvented:
git log refs/*
will never refer to a tag located under
refs/tags/refs/*
because such a tag should not exist.
Signed-off-by: Ingo Rohloff <ingo.rohloff@lauterbach.com>
---
builtin/tag.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/builtin/tag.c b/builtin/tag.c
index e0a4c25382..c818fe3fcd 100644
--- a/builtin/tag.c
+++ b/builtin/tag.c
@@ -537,6 +537,9 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
tag = argv[0];
+ if (!cmdmode && newname_has_bad_prefix(tag))
+ die(_("Invalid new tag name: '%s'"), tag);
+
object_ref = argc == 2 ? argv[1] : "HEAD";
if (argc > 2)
die(_("too many params"));
--
2.24.0
prev parent reply other threads:[~2019-11-07 19:08 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-06 16:56 [PATCH] branch: Forbid to create local branches with confusing names Ingo Rohloff
2019-11-06 22:15 ` Johannes Schindelin
2019-11-07 19:04 ` Ingo Rohloff
2019-11-07 6:05 ` Junio C Hamano
2019-11-07 12:54 ` Ingo Rohloff
2019-11-08 2:54 ` Junio C Hamano
2019-11-08 12:45 ` Ingo Rohloff
2019-11-07 19:07 ` [PATCH v2 0/4] Do not create new refnames "refs" or "refs/*" Ingo Rohloff
2019-11-07 19:07 ` [PATCH v2 1/4] refs: new function newname_has_bad_prefix Ingo Rohloff
2019-11-07 19:07 ` [PATCH v2 2/4] branch: Prevent creation of local branches named "refs" or "refs/*" Ingo Rohloff
2019-11-07 19:07 ` [PATCH v2 3/4] remote: Prevent users from creating remotes " Ingo Rohloff
2019-11-07 19:07 ` Ingo Rohloff [this message]
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