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. Also, as suggested by Derrick [1], move the in-line definition of "enum update_mode" to the top of the file and make it use "flags" mode (each state is a different bit in the word). [1] https://lore.kernel.org/git/22aadea2-9330-aa9e-7b6a-834585189144@xxxxxxxxxx/ Signed-off-by: Shaoxuan Yuan <shaoxuan.yuan02@xxxxxxxxx> --- builtin/mv.c | 60 ++++++++++++++++++++++++++++++++--- t/t7002-mv-sparse-checkout.sh | 4 +-- 2 files changed, 57 insertions(+), 7 deletions(-) diff --git a/builtin/mv.c b/builtin/mv.c index 62284e3f86..e64f251a69 100644 --- a/builtin/mv.c +++ b/builtin/mv.c @@ -19,6 +19,14 @@ static const char * const builtin_mv_usage[] = { NULL }; +enum update_mode { + BOTH = 0, + WORKING_DIRECTORY = (1 << 1), + INDEX = (1 << 2), + SPARSE = (1 << 3), + SKIP_WORKTREE_DIR = (1 << 4), +}; + #define DUP_BASENAME 1 #define KEEP_TRAILING_SLASH 2 @@ -115,6 +123,37 @@ 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, int namelen) +{ + int ret = 1; + const char *with_slash = add_slash(name); + int length = namelen + 1; + + 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 ret; + ce = active_cache[pos]; + if (strncmp(with_slash, ce->name, length)) + return ret; + if (ce_skip_worktree(ce)) + return ret = 0; + } + return ret; +} + int cmd_mv(int argc, const char **argv, const char *prefix) { int i, flags, gitmodules_modified = 0; @@ -129,7 +168,7 @@ int cmd_mv(int argc, const char **argv, const char *prefix) OPT_END(), }; const char **source, **destination, **dest_path, **submodule_gitfile; - enum update_mode { BOTH = 0, WORKING_DIRECTORY, INDEX, SPARSE } *modes; + enum update_mode *modes; struct stat st; struct string_list src_for_dst = STRING_LIST_INIT_NODUP; struct lock_file lock_file = LOCK_INIT; @@ -187,6 +226,8 @@ int cmd_mv(int argc, const char **argv, const char *prefix) if (lstat(src, &st) < 0) { int pos = cache_name_pos(src, length); + const char *src_w_slash = add_slash(src); + if (pos >= 0) { const struct cache_entry *ce = active_cache[pos]; @@ -208,6 +249,11 @@ int cmd_mv(int argc, const char **argv, const char *prefix) else bad = _("bad source"); } + else if (!check_dir_in_index(src, length) && + !path_in_sparse_checkout(src_w_slash, &the_index)) { + modes[i] = SKIP_WORKTREE_DIR; + goto dir_check; + } /* only error if existence is expected. */ else if (modes[i] != SPARSE) bad = _("bad source"); @@ -218,7 +264,9 @@ int cmd_mv(int argc, const char **argv, const char *prefix) && lstat(dst, &st) == 0) bad = _("cannot move directory over file"); else if (src_is_dir) { - int first = cache_name_pos(src, length), last; + int first, last; +dir_check: + first = cache_name_pos(src, length); if (first >= 0) prepare_move_submodule(src, first, @@ -229,7 +277,8 @@ int cmd_mv(int argc, const char **argv, const char *prefix) else { /* last - first >= 1 */ int j, dst_len, n; - modes[i] = WORKING_DIRECTORY; + if (!modes[i]) + modes[i] |= WORKING_DIRECTORY; n = argc + last - first; REALLOC_ARRAY(source, n); REALLOC_ARRAY(destination, n); @@ -331,7 +380,8 @@ 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 && mode != SPARSE && rename(src, dst) < 0) { + if (!(mode & (INDEX | SPARSE | SKIP_WORKTREE_DIR)) && + rename(src, dst) < 0) { if (ignore_errors) continue; die_errno(_("renaming '%s' failed"), src); @@ -345,7 +395,7 @@ 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 2c9008573a..cf2f5dc46f 100755 --- a/t/t7002-mv-sparse-checkout.sh +++ b/t/t7002-mv-sparse-checkout.sh @@ -206,7 +206,7 @@ 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' ' git sparse-checkout disable && git reset --hard && mkdir folder1 && @@ -222,7 +222,7 @@ 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' ' git sparse-checkout disable && git reset --hard && mkdir folder1 && -- 2.35.1
