diff options
| -rw-r--r-- | fast-import.c | 2 | ||||
| -rwxr-xr-x | t/t9300-fast-import.sh | 12 |
2 files changed, 14 insertions, 0 deletions
diff --git a/fast-import.c b/fast-import.c index 742e7da6b8..c44cc11fd7 100644 --- a/fast-import.c +++ b/fast-import.c @@ -2717,6 +2717,8 @@ static void parse_new_tag(void) from = strchr(command_buf.buf, ' ') + 1; s = lookup_branch(from); if (s) { + if (is_null_sha1(s->sha1)) + die("Can't tag an empty branch."); hashcpy(sha1, s->sha1); type = OBJ_COMMIT; } else if (*from == ':') { diff --git a/t/t9300-fast-import.sh b/t/t9300-fast-import.sh index 1a6c06631c..0b97d7aab9 100755 --- a/t/t9300-fast-import.sh +++ b/t/t9300-fast-import.sh @@ -820,6 +820,18 @@ test_expect_success \ 'test 1 = `git rev-list J | wc -l` && test 0 = `git ls-tree J | wc -l`' +cat >input <<INPUT_END +reset refs/heads/J2 + +tag wrong_tag +from refs/heads/J2 +data <<EOF +Tag branch that was reset. +EOF +INPUT_END +test_expect_success \ + 'J: tag must fail on empty branch' \ + 'test_must_fail git fast-import <input' ### ### series K ### |