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authorJeff King <peff@peff.net>2017-07-14 14:18:31 -0400
committerJunio C Hamano <gitster@pobox.com>2017-07-14 12:18:53 -0700
commit4d03f95501ba527a85f6a1a7d916e8c66ee06f41 (patch)
treec6983743bf7eb7396eb013a0858687c928dcac74
parent08f9c32463bf9e578acb7ac5f77afd36e803c6bc (diff)
downloadgit-jk/check-ref-format-oor-fix.tar.gz
check-ref-format: require a repository for --branchjk/check-ref-format-oor-fix
When the user asks "--branch" to interpret a branch name like "@{-1}", we have to dig the answer out of the HEAD reflog. We can obviously only do that if we have a repository, and indeed, running it outside a repository causes us to hit a BUG(). We basically have two options: 1. We can define "@{-N}" outside of a repository as "no such branch" and die with "not a valid brach name". 2. We can just declare that "--branch" must be run inside a repository, in which case we die with "not a git repository". The effect is more or less the same for "@{-N}". Technically one can use "--branch" outside of a repository as long as you don't use any names that actually need interpreting. But since intrpreting is the option's documented purpose, there doesn't seem any point in trying to resolve vanilla names like "foo" (which we end up just printing to stdout verbatim). So let's go with option 2. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--builtin/check-ref-format.c3
-rwxr-xr-xt/t1402-check-ref-format.sh4
2 files changed, 5 insertions, 2 deletions
diff --git a/builtin/check-ref-format.c b/builtin/check-ref-format.c
index eac499450f..1e5f9835f0 100644
--- a/builtin/check-ref-format.c
+++ b/builtin/check-ref-format.c
@@ -39,9 +39,8 @@ static char *collapse_slashes(const char *refname)
static int check_ref_format_branch(const char *arg)
{
struct strbuf sb = STRBUF_INIT;
- int nongit;
- setup_git_directory_gently(&nongit);
+ setup_git_directory();
if (strbuf_check_branch_ref(&sb, arg))
die("'%s' is not a valid branch name", arg);
printf("%s\n", sb.buf + 11);
diff --git a/t/t1402-check-ref-format.sh b/t/t1402-check-ref-format.sh
index 0790edf60d..1674b061e2 100755
--- a/t/t1402-check-ref-format.sh
+++ b/t/t1402-check-ref-format.sh
@@ -161,6 +161,10 @@ test_expect_success 'check-ref-format --branch from subdir' '
test "$refname" = "$sha1"
'
+test_expect_success 'check-ref-format --branch from non-repo' '
+ test_must_fail nongit git check-ref-format --branch @{-1}
+'
+
valid_ref_normalized() {
prereq=
case $1 in