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From: Shaoxuan Yuan <shaoxuan.yuan02@gmail.com>
To: git@vger.kernel.org
Cc: derrickstolee@github.com, vdye@github.com, gitster@pobox.com,
	Shaoxuan Yuan <shaoxuan.yuan02@gmail.com>
Subject: [PATCH v5 7/8] mv: use flags mode for update_mode
Date: Thu, 30 Jun 2022 10:37:36 +0800	[thread overview]
Message-ID: <20220630023737.473690-8-shaoxuan.yuan02@gmail.com> (raw)
In-Reply-To: <20220630023737.473690-1-shaoxuan.yuan02@gmail.com>

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).

Change the flag assignments from '=' (single assignment) to '|='
(additive). Also change flag evaluation from '==' to '&', etc.

[1] https://lore.kernel.org/git/22aadea2-9330-aa9e-7b6a-834585189144@github.com/

Helped-by: Victoria Dye <vdye@github.com>
Helped-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Shaoxuan Yuan <shaoxuan.yuan02@gmail.com>
---
 builtin/mv.c | 25 +++++++++++++++++--------
 1 file changed, 17 insertions(+), 8 deletions(-)

diff --git a/builtin/mv.c b/builtin/mv.c
index 7d9627938a..b805a0d0f6 100644
--- a/builtin/mv.c
+++ b/builtin/mv.c
@@ -20,6 +20,13 @@ static const char * const builtin_mv_usage[] = {
 	NULL
 };
 
+enum update_mode {
+	BOTH = 0,
+	WORKING_DIRECTORY = (1 << 1),
+	INDEX = (1 << 2),
+	SPARSE = (1 << 3),
+};
+
 #define DUP_BASENAME 1
 #define KEEP_TRAILING_SLASH 2
 
@@ -130,7 +137,7 @@ 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;
@@ -192,7 +199,7 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
 			pos = cache_name_pos(src, length);
 			if (pos < 0) {
 				/* only error if existence is expected. */
-				if (modes[i] != SPARSE)
+				if (!(modes[i] & SPARSE))
 					bad = _("bad source");
 				goto act_on_entry;
 			}
@@ -208,14 +215,14 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
 			}
 			/* Check if dst exists in index */
 			if (cache_name_pos(dst, strlen(dst)) < 0) {
-				modes[i] = SPARSE;
+				modes[i] |= SPARSE;
 				goto act_on_entry;
 			}
 			if (!force) {
 				bad = _("destination exists");
 				goto act_on_entry;
 			}
-			modes[i] = SPARSE;
+			modes[i] |= SPARSE;
 			goto act_on_entry;
 		}
 		if (!strncmp(src, dst, length) &&
@@ -243,7 +250,7 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
 			}
 
 			/* last - first >= 1 */
-			modes[i] = WORKING_DIRECTORY;
+			modes[i] |= WORKING_DIRECTORY;
 			n = argc + last - first;
 			REALLOC_ARRAY(source, n);
 			REALLOC_ARRAY(destination, n);
@@ -259,7 +266,8 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
 				source[argc + j] = path;
 				destination[argc + j] =
 					prefix_path(dst, dst_len, path + length + 1);
-				modes[argc + j] = ce_skip_worktree(ce) ? SPARSE : INDEX;
+				memset(modes + argc + j, 0, sizeof(enum update_mode));
+				modes[argc + j] |= ce_skip_worktree(ce) ? SPARSE : INDEX;
 				submodule_gitfile[argc + j] = NULL;
 			}
 			argc += last - first;
@@ -361,7 +369,8 @@ 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)) &&
+		    rename(src, dst) < 0) {
 			if (ignore_errors)
 				continue;
 			die_errno(_("renaming '%s' failed"), src);
@@ -375,7 +384,7 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
 							      1);
 		}
 
-		if (mode == WORKING_DIRECTORY)
+		if (mode & (WORKING_DIRECTORY))
 			continue;
 
 		pos = cache_name_pos(src, strlen(src));
-- 
2.35.1


  parent reply	other threads:[~2022-06-30  2:38 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   ` [WIP v3 2/7] mv: decouple if/else-if checks using goto Shaoxuan Yuan
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   ` Shaoxuan Yuan [this message]
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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