From: Shaoxuan Yuan <shaoxuan.yuan02@gmail.com>
To: shaoxuan.yuan02@gmail.com
Cc: derrickstolee@github.com, git@vger.kernel.org, gitster@pobox.com,
vdye@github.com, newren@gmail.com
Subject: [WIP v3 2/7] mv: decouple if/else-if checks using goto
Date: Sun, 19 Jun 2022 11:25:44 +0800 [thread overview]
Message-ID: <20220619032549.156335-3-shaoxuan.yuan02@gmail.com> (raw)
In-Reply-To: <20220619032549.156335-1-shaoxuan.yuan02@gmail.com>
Previous if/else-if chain are highly nested and hard to develop/extend.
Refactor to decouple this if/else-if chain by using goto to jump ahead.
Suggested-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Shaoxuan Yuan <shaoxuan.yuan02@gmail.com>
---
builtin/mv.c | 139 +++++++++++++++++++++++++++++----------------------
1 file changed, 80 insertions(+), 59 deletions(-)
diff --git a/builtin/mv.c b/builtin/mv.c
index 83a465ba83..1ca2c21da8 100644
--- a/builtin/mv.c
+++ b/builtin/mv.c
@@ -186,53 +186,68 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
length = strlen(src);
if (lstat(src, &st) < 0) {
/* only error if existence is expected. */
- if (modes[i] != SPARSE)
+ if (modes[i] != SPARSE) {
bad = _("bad source");
- } else if (!strncmp(src, dst, length) &&
- (dst[length] == 0 || dst[length] == '/')) {
+ goto act_on_entry;
+ }
+ }
+ if (!strncmp(src, dst, length) &&
+ (dst[length] == 0 || dst[length] == '/')) {
bad = _("can not move directory into itself");
- } else if ((src_is_dir = S_ISDIR(st.st_mode))
- && lstat(dst, &st) == 0)
+ goto act_on_entry;
+ }
+ if ((src_is_dir = S_ISDIR(st.st_mode))
+ && lstat(dst, &st) == 0) {
bad = _("cannot move directory over file");
- else if (src_is_dir) {
+ goto act_on_entry;
+ }
+ if (src_is_dir) {
+ int j, dst_len, n;
int first = cache_name_pos(src, length), last;
- if (first >= 0)
+ if (first >= 0) {
prepare_move_submodule(src, first,
submodule_gitfile + i);
- else if (index_range_of_same_dir(src, length,
- &first, &last) < 1)
+ goto act_on_entry;
+ } else if (index_range_of_same_dir(src, length,
+ &first, &last) < 1) {
bad = _("source directory is empty");
- else { /* last - first >= 1 */
- int j, dst_len, n;
-
- modes[i] = WORKING_DIRECTORY;
- n = argc + last - first;
- REALLOC_ARRAY(source, n);
- REALLOC_ARRAY(destination, n);
- REALLOC_ARRAY(modes, n);
- REALLOC_ARRAY(submodule_gitfile, n);
-
- dst = add_slash(dst);
- dst_len = strlen(dst);
-
- for (j = 0; j < last - first; j++) {
- const struct cache_entry *ce = active_cache[first + j];
- const char *path = ce->name;
- source[argc + j] = path;
- destination[argc + j] =
- prefix_path(dst, dst_len, path + length + 1);
- modes[argc + j] = ce_skip_worktree(ce) ? SPARSE : INDEX;
- submodule_gitfile[argc + j] = NULL;
- }
- argc += last - first;
+ goto act_on_entry;
}
- } else if (!(ce = cache_file_exists(src, length, 0))) {
+
+ /* last - first >= 1 */
+ modes[i] = WORKING_DIRECTORY;
+ n = argc + last - first;
+ REALLOC_ARRAY(source, n);
+ REALLOC_ARRAY(destination, n);
+ REALLOC_ARRAY(modes, n);
+ REALLOC_ARRAY(submodule_gitfile, n);
+
+ dst = add_slash(dst);
+ dst_len = strlen(dst);
+
+ for (j = 0; j < last - first; j++) {
+ const struct cache_entry *ce = active_cache[first + j];
+ const char *path = ce->name;
+ source[argc + j] = path;
+ destination[argc + j] =
+ prefix_path(dst, dst_len, path + length + 1);
+ modes[argc + j] = ce_skip_worktree(ce) ? SPARSE : INDEX;
+ submodule_gitfile[argc + j] = NULL;
+ }
+ argc += last - first;
+ goto act_on_entry;
+ }
+ if (!(ce = cache_file_exists(src, length, 0))) {
bad = _("not under version control");
- } else if (ce_stage(ce)) {
+ goto act_on_entry;
+ }
+ if (ce_stage(ce)) {
bad = _("conflicted");
- } else if (lstat(dst, &st) == 0 &&
- (!ignore_case || strcasecmp(src, dst))) {
+ goto act_on_entry;
+ }
+ if (lstat(dst, &st) == 0 &&
+ (!ignore_case || strcasecmp(src, dst))) {
bad = _("destination exists");
if (force) {
/*
@@ -246,34 +261,40 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
} else
bad = _("Cannot overwrite");
}
- } else if (string_list_has_string(&src_for_dst, dst))
+ goto act_on_entry;
+ }
+ if (string_list_has_string(&src_for_dst, dst)) {
bad = _("multiple sources for the same target");
- else if (is_dir_sep(dst[strlen(dst) - 1]))
+ goto act_on_entry;
+ }
+ if (is_dir_sep(dst[strlen(dst) - 1])) {
bad = _("destination directory does not exist");
- else {
- /*
- * We check if the paths are in the sparse-checkout
- * definition as a very final check, since that
- * allows us to point the user to the --sparse
- * option as a way to have a successful run.
- */
- if (!ignore_sparse &&
- !path_in_sparse_checkout(src, &the_index)) {
- string_list_append(&only_match_skip_worktree, src);
- skip_sparse = 1;
- }
- if (!ignore_sparse &&
- !path_in_sparse_checkout(dst, &the_index)) {
- string_list_append(&only_match_skip_worktree, dst);
- skip_sparse = 1;
- }
-
- if (skip_sparse)
- goto remove_entry;
+ goto act_on_entry;
+ }
- string_list_insert(&src_for_dst, dst);
+ /*
+ * We check if the paths are in the sparse-checkout
+ * definition as a very final check, since that
+ * allows us to point the user to the --sparse
+ * option as a way to have a successful run.
+ */
+ if (!ignore_sparse &&
+ !path_in_sparse_checkout(src, &the_index)) {
+ string_list_append(&only_match_skip_worktree, src);
+ skip_sparse = 1;
+ }
+ if (!ignore_sparse &&
+ !path_in_sparse_checkout(dst, &the_index)) {
+ string_list_append(&only_match_skip_worktree, dst);
+ skip_sparse = 1;
}
+ if (skip_sparse)
+ goto remove_entry;
+
+ string_list_insert(&src_for_dst, dst);
+
+act_on_entry:
if (!bad)
continue;
if (!ignore_errors)
--
2.35.1
next prev parent reply other threads:[~2022-06-19 3:26 UTC|newest]
Thread overview: 95+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-31 9:17 [WIP v1 0/4] mv: fix out-of-cone file/directory move logic Shaoxuan Yuan
2022-03-31 9:17 ` [WIP v1 1/4] mv: check if out-of-cone file exists in index with SKIP_WORKTREE bit Shaoxuan Yuan
2022-03-31 16:39 ` Victoria Dye
2022-04-01 14:30 ` Derrick Stolee
2022-03-31 9:17 ` [WIP v1 2/4] mv: add check_dir_in_index() and solve general dir check issue Shaoxuan Yuan
2022-03-31 10:25 ` Ævar Arnfjörð Bjarmason
2022-04-01 3:51 ` Shaoxuan Yuan
2022-03-31 21:28 ` Victoria Dye
2022-04-01 12:49 ` Shaoxuan Yuan
2022-04-01 14:49 ` Derrick Stolee
2022-04-04 7:25 ` Shaoxuan Yuan
2022-04-04 7:49 ` Shaoxuan Yuan
2022-04-04 12:43 ` Derrick Stolee
2022-03-31 9:17 ` [WIP v1 3/4] mv: add advise_to_reapply hint for moving file into cone Shaoxuan Yuan
2022-03-31 10:30 ` Ævar Arnfjörð Bjarmason
2022-04-01 4:00 ` Shaoxuan Yuan
2022-04-01 8:02 ` Ævar Arnfjörð Bjarmason
2022-04-03 2:01 ` Eric Sunshine
2022-03-31 21:56 ` Victoria Dye
2022-04-01 14:55 ` Derrick Stolee
2022-03-31 9:17 ` [WIP v1 4/4] t7002: add tests for moving out-of-cone file/directory Shaoxuan Yuan
2022-03-31 10:33 ` Ævar Arnfjörð Bjarmason
2022-03-31 22:11 ` Victoria Dye
2022-03-31 9:28 ` [WIP v1 0/4] mv: fix out-of-cone file/directory move logic Shaoxuan Yuan
2022-03-31 22:21 ` Victoria Dye
2022-04-01 12:18 ` Shaoxuan Yuan
2022-04-08 12:22 ` Shaoxuan Yuan
2022-05-27 10:07 ` [WIP v2 0/5] " Shaoxuan Yuan
2022-05-27 10:08 ` [WIP v2 1/5] t7002: add tests for moving out-of-cone file/directory Shaoxuan Yuan
2022-05-27 12:07 ` Ævar Arnfjörð Bjarmason
2022-05-27 14:48 ` Derrick Stolee
2022-05-27 15:51 ` Victoria Dye
2022-05-27 10:08 ` [WIP v2 2/5] mv: check if out-of-cone file exists in index with SKIP_WORKTREE bit Shaoxuan Yuan
2022-05-27 15:13 ` Derrick Stolee
2022-05-27 22:38 ` Victoria Dye
2022-05-31 8:06 ` Shaoxuan Yuan
2022-05-27 10:08 ` [WIP v2 3/5] mv: check if <destination> exists in index to handle overwriting Shaoxuan Yuan
2022-05-27 22:04 ` Victoria Dye
2022-05-27 10:08 ` [WIP v2 4/5] mv: add check_dir_in_index() and solve general dir check issue Shaoxuan Yuan
2022-05-27 15:27 ` Derrick Stolee
2022-05-31 9:56 ` Shaoxuan Yuan
2022-05-31 15:49 ` Derrick Stolee
2022-05-27 10:08 ` [WIP v2 5/5] mv: use update_sparsity() after touching sparse contents Shaoxuan Yuan
2022-05-27 12:10 ` Ævar Arnfjörð Bjarmason
2022-05-27 19:36 ` Victoria Dye
2022-05-27 19:59 ` Junio C Hamano
2022-05-27 21:24 ` Victoria Dye
2022-06-16 13:51 ` Shaoxuan Yuan
2022-06-16 16:42 ` Victoria Dye
2022-06-17 2:15 ` Shaoxuan Yuan
2022-06-19 3:25 ` [WIP v3 0/7] mv: fix out-of-cone file/directory move logic Shaoxuan Yuan
2022-06-19 3:25 ` [WIP v3 1/7] t7002: add tests for moving out-of-cone file/directory Shaoxuan Yuan
2022-06-21 21:23 ` Victoria Dye
2022-06-19 3:25 ` Shaoxuan Yuan [this message]
2022-06-19 3:25 ` [WIP v3 3/7] mv: check if out-of-cone file exists in index with SKIP_WORKTREE bit Shaoxuan Yuan
2022-06-19 3:25 ` [WIP v3 4/7] mv: check if <destination> exists in index to handle overwriting Shaoxuan Yuan
2022-06-19 3:25 ` [WIP v3 5/7] mv: use flags mode for update_mode Shaoxuan Yuan
2022-06-21 22:32 ` Victoria Dye
2022-06-22 9:37 ` Shaoxuan Yuan
2022-06-19 3:25 ` [WIP v3 6/7] mv: add check_dir_in_index() and solve general dir check issue Shaoxuan Yuan
2022-06-21 22:55 ` Victoria Dye
2022-06-19 3:25 ` [WIP v3 7/7] mv: update sparsity after moving from out-of-cone to in-cone Shaoxuan Yuan
2022-06-21 23:11 ` Victoria Dye
2022-06-21 23:30 ` [WIP v3 0/7] mv: fix out-of-cone file/directory move logic Victoria Dye
2022-06-23 15:06 ` Derrick Stolee
2022-06-23 16:19 ` Junio C Hamano
2022-06-24 8:26 ` Shaoxuan Yuan
2022-06-23 11:41 ` [PATCH v4 " Shaoxuan Yuan
2022-06-23 11:41 ` [PATCH v4 1/7] t7002: add tests for moving out-of-cone file/directory Shaoxuan Yuan
2022-06-23 11:41 ` [PATCH v4 2/7] mv: update sparsity after moving from out-of-cone to in-cone Shaoxuan Yuan
2022-06-23 15:08 ` Derrick Stolee
2022-06-24 8:04 ` Shaoxuan Yuan
2022-06-27 13:55 ` Derrick Stolee
2022-06-23 11:41 ` [PATCH v4 3/7] mv: decouple if/else-if checks using goto Shaoxuan Yuan
2022-06-23 11:41 ` [PATCH v4 4/7] mv: check if out-of-cone file exists in index with SKIP_WORKTREE bit Shaoxuan Yuan
2022-06-23 11:41 ` [PATCH v4 5/7] mv: check if <destination> exists in index to handle overwriting Shaoxuan Yuan
2022-06-23 11:41 ` [PATCH v4 6/7] mv: use flags mode for update_mode Shaoxuan Yuan
2022-06-23 15:10 ` Derrick Stolee
2022-06-23 11:41 ` [PATCH v4 7/7] mv: add check_dir_in_index() and solve general dir check issue Shaoxuan Yuan
2022-06-23 15:14 ` Derrick Stolee
2022-06-24 7:57 ` Shaoxuan Yuan
2022-06-27 13:59 ` Derrick Stolee
2022-06-23 15:16 ` [PATCH v4 0/7] mv: fix out-of-cone file/directory move logic Derrick Stolee
2022-06-23 18:05 ` Junio C Hamano
2022-06-30 2:37 ` [PATCH v5 0/8] " Shaoxuan Yuan
2022-06-30 2:37 ` [PATCH v5 1/8] t7002: add tests for moving out-of-cone file/directory Shaoxuan Yuan
2022-06-30 2:37 ` [PATCH v5 2/8] t1092: mv directory from out-of-cone to in-cone Shaoxuan Yuan
2022-06-30 2:37 ` [PATCH v5 3/8] mv: update sparsity after moving " Shaoxuan Yuan
2022-06-30 2:37 ` [PATCH v5 4/8] mv: decouple if/else-if checks using goto Shaoxuan Yuan
2022-06-30 2:37 ` [PATCH v5 5/8] mv: check if out-of-cone file exists in index with SKIP_WORKTREE bit Shaoxuan Yuan
2022-06-30 2:37 ` [PATCH v5 6/8] mv: check if <destination> exists in index to handle overwriting Shaoxuan Yuan
2022-06-30 2:37 ` [PATCH v5 7/8] mv: use flags mode for update_mode Shaoxuan Yuan
2022-06-30 2:37 ` [PATCH v5 8/8] mv: add check_dir_in_index() and solve general dir check issue Shaoxuan Yuan
2022-07-01 19:43 ` [PATCH v5 0/8] mv: fix out-of-cone file/directory move logic Derrick Stolee
2022-07-01 21:50 ` Junio C Hamano
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