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mv: check if <destination> is a SKIP_WORKTREE_DIR 

Originally, <destination> is assumed to be in the working tree. If it is
not found as a directory, then it is determined to be either a regular file
path, or error out if used under the second form (move into a directory)
of 'git-mv'. Such behavior is not ideal, mainly because Git does not
look into the index for <destination>, which could potentially be a
SKIP_WORKTREE_DIR, which we need to determine for the later "moving from
in-cone to out-of-cone" patch.

Change the logic so that Git first check if <destination> is a directory
with all its contents sparsified (a SKIP_WORKTREE_DIR).

If <destination> is such a sparse directory, then we should modify the
index the same way as we would if this were a non-sparse directory. We
must be careful to ensure that the <destination> is marked with
SKIP_WORKTREE_DIR.

Also add a `dst_w_slash` to reuse the result from `add_slash()`, which
was everywhere and can be simplified.

Helped-by: Derrick Stolee <derrickstolee@github.com>
Helped-by: Victoria Dye <vdye@github.com>
Signed-off-by: Shaoxuan Yuan <shaoxuan.yuan02@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Shaoxuan Yuan 2022-08-09 20:09:05 +08:00 committed by Junio C Hamano
parent d57690a9c8
commit c08830de41
1 changed files with 14 additions and 4 deletions
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18
builtin/mv.c
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@ -171,6 +171,7 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
OPT_END(),
};
const char **source, **destination, **dest_path, **submodule_gitfile;
const char *dst_w_slash;
enum update_mode *modes;
struct stat st;
struct string_list src_for_dst = STRING_LIST_INIT_NODUP;
@ -200,6 +201,7 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
if (argc == 1 && is_directory(argv[0]) && !is_directory(argv[1]))
flags = 0;
dest_path = internal_prefix_pathspec(prefix, argv + argc, 1, flags);
dst_w_slash = add_slash(dest_path[0]);
submodule_gitfile = xcalloc(argc, sizeof(char *));
if (dest_path[0][0] == '\0')
@ -207,12 +209,20 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
destination = internal_prefix_pathspec(dest_path[0], argv, argc, DUP_BASENAME);
else if (!lstat(dest_path[0], &st) &&
S_ISDIR(st.st_mode)) {
dest_path[0] = add_slash(dest_path[0]);
destination = internal_prefix_pathspec(dest_path[0], argv, argc, DUP_BASENAME);
destination = internal_prefix_pathspec(dst_w_slash, argv, argc, DUP_BASENAME);
} else {
if (argc != 1)
if (!path_in_sparse_checkout(dst_w_slash, &the_index) &&
empty_dir_has_sparse_contents(dst_w_slash)) {
destination = internal_prefix_pathspec(dst_w_slash, argv, argc, DUP_BASENAME);
} else if (argc != 1) {
die(_("destination '%s' is not a directory"), dest_path[0]);
destination = dest_path;
} else {
destination = dest_path;
}
}
if (dst_w_slash != dest_path[0]) {
free((char *)dst_w_slash);
dst_w_slash = NULL;
}
/* Checking */