Originally, moving a <source> directory which is not on-disk due
to its existence outside of sparse-checkout cone, "giv mv" command
errors out with "bad source".
Add a helper check_dir_in_index() function to see if a directory
name exists in the index. Also add a SKIP_WORKTREE_DIR bit to mark
such directories.
Change the checking logic, so that such <source> directory makes
"giv mv" command warns with "advise_on_updating_sparse_paths()"
instead of "bad source"; also user now can supply a "--sparse" flag so
this operation can be carried out successfully.
Helped-by: Victoria Dye <vdye@xxxxxxxxxx>
Helped-by: Derrick Stolee <derrickstolee@xxxxxxxxxx>
Signed-off-by: Shaoxuan Yuan <shaoxuan.yuan02@xxxxxxxxx>
---
builtin/mv.c | 50 ++++++++++++++++++++++++++++++-----
t/t7002-mv-sparse-checkout.sh | 4 +--
2 files changed, 46 insertions(+), 8 deletions(-)
diff --git a/builtin/mv.c b/builtin/mv.c
index aa29da4337..b5d0d8ef4f 100644
--- a/builtin/mv.c
+++ b/builtin/mv.c
@@ -25,6 +25,7 @@ enum update_mode {
WORKING_DIRECTORY = (1 << 1),
INDEX = (1 << 2),
SPARSE = (1 << 3),
+ SKIP_WORKTREE_DIR = (1 << 4),
};
#define DUP_BASENAME 1
@@ -123,6 +124,36 @@ static int index_range_of_same_dir(const char *src, int length,
return last - first;
}
+/*
+ * Check if an out-of-cone directory should be in the index. Imagine this case
+ * that all the files under a directory are marked with 'CE_SKIP_WORKTREE' bit
+ * and thus the directory is sparsified.
+ *
+ * Return 0 if such directory exist (i.e. with any of its contained files not
+ * marked with CE_SKIP_WORKTREE, the directory would be present in working tree).
+ * Return 1 otherwise.
+ */
+static int check_dir_in_index(const char *name)
+{
+ const char *with_slash = add_slash(name);
+ int length = strlen(with_slash);
+
+ int pos = cache_name_pos(with_slash, length);
+ const struct cache_entry *ce;
+
+ if (pos < 0) {
+ pos = -pos - 1;
+ if (pos >= the_index.cache_nr)
+ return 1;
+ ce = active_cache[pos];
+ if (strncmp(with_slash, ce->name, length))
+ return 1;
+ if (ce_skip_worktree(ce))
+ return 0;
+ }
+ return 1;
+}
+
int cmd_mv(int argc, const char **argv, const char *prefix)
{
int i, flags, gitmodules_modified = 0;
@@ -184,7 +215,7 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
/* Checking */
for (i = 0; i < argc; i++) {
const char *src = source[i], *dst = destination[i];
- int length, src_is_dir;
+ int length;
const char *bad = NULL;
int skip_sparse = 0;
@@ -198,12 +229,17 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
pos = cache_name_pos(src, length);
if (pos < 0) {
+ const char *src_w_slash = add_slash(src);
+ if (!path_in_sparse_checkout(src_w_slash, &the_index) &&
+ !check_dir_in_index(src)) {
+ modes[i] |= SKIP_WORKTREE_DIR;
+ goto dir_check;
+ }
/* only error if existence is expected. */
if (!(modes[i] & SPARSE))
bad = _("bad source");
goto act_on_entry;
}
-
ce = active_cache[pos];
if (!ce_skip_worktree(ce)) {
bad = _("bad source");
@@ -230,12 +266,14 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
bad = _("can not move directory into itself");
goto act_on_entry;
}
- if ((src_is_dir = S_ISDIR(st.st_mode))
+ if (S_ISDIR(st.st_mode)
&& lstat(dst, &st) == 0) {
bad = _("cannot move directory over file");
goto act_on_entry;
}
- if (src_is_dir) {
+
+dir_check:
+ if (S_ISDIR(st.st_mode)) {
int j, dst_len, n;
int first = cache_name_pos(src, length), last;
@@ -369,7 +407,7 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
printf(_("Renaming %s to %s\n"), src, dst);
if (show_only)
continue;
- if (!(mode & (INDEX | SPARSE)) &&
+ if (!(mode & (INDEX | SPARSE | SKIP_WORKTREE_DIR)) &&
rename(src, dst) < 0) {
if (ignore_errors)
continue;
@@ -384,7 +422,7 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
1);
}
- if (mode & (WORKING_DIRECTORY))
+ if (mode & (WORKING_DIRECTORY | SKIP_WORKTREE_DIR))
continue;
pos = cache_name_pos(src, strlen(src));
diff --git a/t/t7002-mv-sparse-checkout.sh b/t/t7002-mv-sparse-checkout.sh
index 6d2fb4f8d2..71fe29690f 100755
--- a/t/t7002-mv-sparse-checkout.sh
+++ b/t/t7002-mv-sparse-checkout.sh
@@ -219,7 +219,7 @@ test_expect_success 'refuse to move file to non-skip-worktree sparse path' '
test_cmp expect stderr
'
-test_expect_failure 'refuse to move out-of-cone directory without --sparse' '
+test_expect_success 'refuse to move out-of-cone directory without --sparse' '
test_when_finished "cleanup_sparse_checkout" &&
setup_sparse_checkout &&
@@ -230,7 +230,7 @@ test_expect_failure 'refuse to move out-of-cone directory without --sparse' '
test_cmp expect stderr
'
-test_expect_failure 'can move out-of-cone directory with --sparse' '
+test_expect_success 'can move out-of-cone directory with --sparse' '
test_when_finished "cleanup_sparse_checkout" &&
setup_sparse_checkout &&
--
2.35.1
