When using git clone with --separate-git-dir realgitdir and
realgitdir already exists, it's content is destroyed.
So, make sure we don't clone into an existing non-empty directory.
Note: #d45420c1: "clone: do not clean up directories we didn't create"
assumed we always write into an empty directory, but missed the check
for real_git_dir, this commit fixed it by adding the check.
Signed-off-by: Ben Wijen <ben@xxxxxxxxx>
---
builtin/clone.c | 12 ++++++++++--
t/t5601-clone.sh | 4 +++-
2 files changed, 13 insertions(+), 3 deletions(-)
diff --git a/builtin/clone.c b/builtin/clone.c
index bef70745c0..a9f3312a54 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -946,7 +946,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
int is_bundle = 0, is_local;
const char *repo_name, *repo, *work_tree, *git_dir;
char *path, *dir, *display_repo = NULL;
- int dest_exists;
+ int dest_exists, real_dest_exists = 0;
const struct ref *refs, *remote_head;
const struct ref *remote_head_points_at;
const struct ref *our_head_points_at;
@@ -1021,6 +1021,14 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
die(_("destination path '%s' already exists and is not "
"an empty directory."), dir);
+ if (real_git_dir) {
+ real_dest_exists = path_exists(real_git_dir);
+ if (real_dest_exists && !is_empty_dir(real_git_dir))
+ die(_("repository path '%s' already exists and is not "
+ "an empty directory."), real_git_dir);
+ }
+
+
strbuf_addf(&reflog_msg, "clone: from %s",
display_repo ? display_repo : repo);
free(display_repo);
@@ -1057,7 +1065,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
}
if (real_git_dir) {
- if (path_exists(real_git_dir))
+ if (real_dest_exists)
junk_git_dir_flags |= REMOVE_DIR_KEEP_TOPLEVEL;
junk_git_dir = real_git_dir;
} else {
diff --git a/t/t5601-clone.sh b/t/t5601-clone.sh
index 84ea2a3eb7..eb9a093e25 100755
--- a/t/t5601-clone.sh
+++ b/t/t5601-clone.sh
@@ -271,7 +271,9 @@ test_expect_success 'fetch from gitfile parent' '
test_expect_success 'clone separate gitdir where target already exists' '
rm -rf dst &&
- test_must_fail git clone --separate-git-dir realgitdir src dst
+ echo foo=bar >>realgitdir/config &&
+ test_must_fail git clone --separate-git-dir realgitdir src dst &&
+ grep foo=bar realgitdir/config
'
test_expect_success 'clone --reference from original' '
--
2.27.0
