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From: Thomas Gummerer <t.gummerer@gmail.com>
To: Junio C Hamano <gitster@pobox.com>
Cc: "Johannes Schindelin" <Johannes.Schindelin@gmx.de>,
	"Jeff King" <peff@peff.net>,
	git@vger.kernel.org,
	"Paul-Sebastian Ungureanu" <ungureanupaulsebastian@gmail.com>,
	"SZEDER Gábor" <szeder.dev@gmail.com>,
	"Matthew Kraai" <mkraai@its.jnj.com>
Subject: [PATCH v2] stash: pass pathspec as pointer
Date: Mon, 11 Mar 2019 22:16:32 +0000	[thread overview]
Message-ID: <20190311221624.GC16414@hank.intra.tgummerer.com> (raw)
In-Reply-To: <20190311214244.GB16414@hank.intra.tgummerer.com>

Passing the pathspec by value is potentially confusing, as the copy is
only a shallow copy, so save the overhead of the copy, and pass the
pathspec struct as a pointer.

In addition use copy_pathspec to copy the pathspec into
rev.prune_data, so the copy is a proper deep copy, and owned by the
revision API, as that's what the API expects.

Reported-by: Jeff King <peff@peff.net>
Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
---

> Good catch on both acconts.  I'll send a new patch soon, adding the
> clear_pathspec() calls and rebasing it on top of Dscho's fix.

Here it is.  Thanks for the review of the first round Junio!

This is on top of Dscho's series at
<pull.159.git.gitgitgadget@gmail.com> applied to ps/stash-in-c.

 builtin/stash.c | 68 +++++++++++++++++++++++++++----------------------
 1 file changed, 38 insertions(+), 30 deletions(-)

diff --git a/builtin/stash.c b/builtin/stash.c
index 2f29d037c8..e0528d4cc8 100644
--- a/builtin/stash.c
+++ b/builtin/stash.c
@@ -826,11 +826,11 @@ static int store_stash(int argc, const char **argv, const char *prefix)
 }
 
 static void add_pathspecs(struct argv_array *args,
-			  struct pathspec ps) {
+			  const struct pathspec *ps) {
 	int i;
 
-	for (i = 0; i < ps.nr; i++)
-		argv_array_push(args, ps.items[i].original);
+	for (i = 0; i < ps->nr; i++)
+		argv_array_push(args, ps->items[i].original);
 }
 
 /*
@@ -840,7 +840,7 @@ static void add_pathspecs(struct argv_array *args,
  * = 0 if there are not any untracked files
  * > 0 if there are untracked files
  */
-static int get_untracked_files(struct pathspec ps, int include_untracked,
+static int get_untracked_files(const struct pathspec *ps, int include_untracked,
 			       struct strbuf *untracked_files)
 {
 	int i;
@@ -853,12 +853,12 @@ static int get_untracked_files(struct pathspec ps, int include_untracked,
 	if (include_untracked != INCLUDE_ALL_FILES)
 		setup_standard_excludes(&dir);
 
-	seen = xcalloc(ps.nr, 1);
+	seen = xcalloc(ps->nr, 1);
 
-	max_len = fill_directory(&dir, the_repository->index, &ps);
+	max_len = fill_directory(&dir, the_repository->index, ps);
 	for (i = 0; i < dir.nr; i++) {
 		struct dir_entry *ent = dir.entries[i];
-		if (dir_path_match(&the_index, ent, &ps, max_len, seen)) {
+		if (dir_path_match(&the_index, ent, ps, max_len, seen)) {
 			found++;
 			strbuf_addstr(untracked_files, ent->name);
 			/* NUL-terminate: will be fed to update-index -z */
@@ -881,11 +881,12 @@ static int get_untracked_files(struct pathspec ps, int include_untracked,
  * = 0 if there are no changes.
  * > 0 if there are changes.
  */
-static int check_changes_tracked_files(struct pathspec ps)
+static int check_changes_tracked_files(const struct pathspec *ps)
 {
 	int result;
 	struct rev_info rev;
 	struct object_id dummy;
+	int ret = 0;
 
 	/* No initial commit. */
 	if (get_oid("HEAD", &dummy))
@@ -895,7 +896,7 @@ static int check_changes_tracked_files(struct pathspec ps)
 		return -1;
 
 	init_revisions(&rev, NULL);
-	rev.prune_data = ps;
+	copy_pathspec(&rev.prune_data, ps);
 
 	rev.diffopt.flags.quick = 1;
 	rev.diffopt.flags.ignore_submodules = 1;
@@ -905,22 +906,28 @@ static int check_changes_tracked_files(struct pathspec ps)
 	diff_setup_done(&rev.diffopt);
 
 	result = run_diff_index(&rev, 1);
-	if (diff_result_code(&rev.diffopt, result))
-		return 1;
+	if (diff_result_code(&rev.diffopt, result)) {
+		ret = 1;
+		goto done;
+	}
 
 	object_array_clear(&rev.pending);
 	result = run_diff_files(&rev, 0);
-	if (diff_result_code(&rev.diffopt, result))
-		return 1;
+	if (diff_result_code(&rev.diffopt, result)) {
+		ret = 1;
+		goto done;
+	}
 
-	return 0;
+done:
+	clear_pathspec(&rev.prune_data);
+	return ret;
 }
 
 /*
  * The function will fill `untracked_files` with the names of untracked files
  * It will return 1 if there were any changes and 0 if there were not.
  */
-static int check_changes(struct pathspec ps, int include_untracked,
+static int check_changes(const struct pathspec *ps, int include_untracked,
 			 struct strbuf *untracked_files)
 {
 	int ret = 0;
@@ -974,7 +981,7 @@ static int save_untracked_files(struct stash_info *info, struct strbuf *msg,
 	return ret;
 }
 
-static int stash_patch(struct stash_info *info, struct pathspec ps,
+static int stash_patch(struct stash_info *info, const struct pathspec *ps,
 		       struct strbuf *out_patch, int quiet)
 {
 	int ret = 0;
@@ -1033,7 +1040,7 @@ static int stash_patch(struct stash_info *info, struct pathspec ps,
 	return ret;
 }
 
-static int stash_working_tree(struct stash_info *info, struct pathspec ps)
+static int stash_working_tree(struct stash_info *info, const struct pathspec *ps)
 {
 	int ret = 0;
 	struct rev_info rev;
@@ -1042,6 +1049,7 @@ static int stash_working_tree(struct stash_info *info, struct pathspec ps)
 	struct index_state istate = { NULL };
 
 	init_revisions(&rev, NULL);
+	copy_pathspec(&rev.prune_data, ps);
 
 	set_alternate_index_output(stash_index_path.buf);
 	if (reset_tree(&info->i_tree, 0, 0)) {
@@ -1050,7 +1058,6 @@ static int stash_working_tree(struct stash_info *info, struct pathspec ps)
 	}
 	set_alternate_index_output(NULL);
 
-	rev.prune_data = ps;
 	rev.diffopt.output_format = DIFF_FORMAT_CALLBACK;
 	rev.diffopt.format_callback = add_diff_to_buf;
 	rev.diffopt.format_callback_data = &diff_output;
@@ -1089,12 +1096,13 @@ static int stash_working_tree(struct stash_info *info, struct pathspec ps)
 	discard_index(&istate);
 	UNLEAK(rev);
 	object_array_clear(&rev.pending);
+	clear_pathspec(&rev.prune_data);
 	strbuf_release(&diff_output);
 	remove_path(stash_index_path.buf);
 	return ret;
 }
 
-static int do_create_stash(struct pathspec ps, struct strbuf *stash_msg_buf,
+static int do_create_stash(const struct pathspec *ps, struct strbuf *stash_msg_buf,
 			   int include_untracked, int patch_mode,
 			   struct stash_info *info, struct strbuf *patch,
 			   int quiet)
@@ -1226,10 +1234,10 @@ static int create_stash(int argc, const char **argv, const char *prefix)
 	strbuf_join_argv(&stash_msg_buf, argc - 1, ++argv, ' ');
 
 	memset(&ps, 0, sizeof(ps));
-	if (!check_changes_tracked_files(ps))
+	if (!check_changes_tracked_files(&ps))
 		return 0;
 
-	ret = do_create_stash(ps, &stash_msg_buf, 0, 0, &info,
+	ret = do_create_stash(&ps, &stash_msg_buf, 0, 0, &info,
 			      NULL, 0);
 	if (!ret)
 		printf_ln("%s", oid_to_hex(&info.w_commit));
@@ -1238,7 +1246,7 @@ static int create_stash(int argc, const char **argv, const char *prefix)
 	return ret;
 }
 
-static int do_push_stash(struct pathspec ps, const char *stash_msg, int quiet,
+static int do_push_stash(const struct pathspec *ps, const char *stash_msg, int quiet,
 			 int keep_index, int patch_mode, int include_untracked)
 {
 	int ret = 0;
@@ -1258,15 +1266,15 @@ static int do_push_stash(struct pathspec ps, const char *stash_msg, int quiet,
 	}
 
 	read_cache_preload(NULL);
-	if (!include_untracked && ps.nr) {
+	if (!include_untracked && ps->nr) {
 		int i;
-		char *ps_matched = xcalloc(ps.nr, 1);
+		char *ps_matched = xcalloc(ps->nr, 1);
 
 		for (i = 0; i < active_nr; i++)
-			ce_path_match(&the_index, active_cache[i], &ps,
+			ce_path_match(&the_index, active_cache[i], ps,
 				      ps_matched);
 
-		if (report_path_error(ps_matched, &ps, NULL)) {
+		if (report_path_error(ps_matched, ps, NULL)) {
 			fprintf_ln(stderr, _("Did you forget to 'git add'?"));
 			ret = -1;
 			free(ps_matched);
@@ -1313,7 +1321,7 @@ static int do_push_stash(struct pathspec ps, const char *stash_msg, int quiet,
 			  stash_msg_buf.buf);
 
 	if (!patch_mode) {
-		if (include_untracked && !ps.nr) {
+		if (include_untracked && !ps->nr) {
 			struct child_process cp = CHILD_PROCESS_INIT;
 
 			cp.git_cmd = 1;
@@ -1327,7 +1335,7 @@ static int do_push_stash(struct pathspec ps, const char *stash_msg, int quiet,
 			}
 		}
 		discard_cache();
-		if (ps.nr) {
+		if (ps->nr) {
 			struct child_process cp_add = CHILD_PROCESS_INIT;
 			struct child_process cp_diff = CHILD_PROCESS_INIT;
 			struct child_process cp_apply = CHILD_PROCESS_INIT;
@@ -1468,7 +1476,7 @@ static int push_stash(int argc, const char **argv, const char *prefix)
 
 	parse_pathspec(&ps, 0, PATHSPEC_PREFER_FULL | PATHSPEC_PREFIX_ORIGIN,
 		       prefix, argv);
-	return do_push_stash(ps, stash_msg, quiet, keep_index, patch_mode,
+	return do_push_stash(&ps, stash_msg, quiet, keep_index, patch_mode,
 			     include_untracked);
 }
 
@@ -1505,7 +1513,7 @@ static int save_stash(int argc, const char **argv, const char *prefix)
 		stash_msg = strbuf_join_argv(&stash_msg_buf, argc, argv, ' ');
 
 	memset(&ps, 0, sizeof(ps));
-	ret = do_push_stash(ps, stash_msg, quiet, keep_index,
+	ret = do_push_stash(&ps, stash_msg, quiet, keep_index,
 			    patch_mode, include_untracked);
 
 	strbuf_release(&stash_msg_buf);
-- 
2.21.0.474.g541d9dca55

  reply	other threads:[~2019-03-11 22:16 UTC|newest]

Thread overview: 106+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <https://public-inbox.org/git/cover.1542925164.git.ungureanupaulsebastian@gmail.com/>
2018-12-20 19:44 ` [PATCH v12 00/26] Convert "git stash" to C builtin Paul-Sebastian Ungureanu
2018-12-20 19:44   ` [PATCH v12 01/26] sha1-name.c: add `get_oidf()` which acts like `get_oid()` Paul-Sebastian Ungureanu
2018-12-20 19:44   ` [PATCH v12 02/26] strbuf.c: add `strbuf_join_argv()` Paul-Sebastian Ungureanu
2018-12-20 19:44   ` [PATCH v12 03/26] strbuf.c: add `strbuf_insertf()` and `strbuf_vinsertf()` Paul-Sebastian Ungureanu
2018-12-20 19:44   ` [PATCH v12 04/26] ident: add the ability to provide a "fallback identity" Paul-Sebastian Ungureanu
2018-12-26 21:21     ` Junio C Hamano
2018-12-27 21:24       ` Johannes Schindelin
2018-12-28 19:40         ` Junio C Hamano
2018-12-20 19:44   ` [PATCH v12 05/26] stash: improve option parsing test coverage Paul-Sebastian Ungureanu
2018-12-20 19:44   ` [PATCH v12 06/26] t3903: modernize style Paul-Sebastian Ungureanu
2018-12-20 19:44   ` [PATCH v12 07/26] stash: rename test cases to be more descriptive Paul-Sebastian Ungureanu
2018-12-20 19:44   ` [PATCH v12 08/26] stash: add tests for `git stash show` config Paul-Sebastian Ungureanu
2018-12-20 19:44   ` [PATCH v12 09/26] stash: mention options in `show` synopsis Paul-Sebastian Ungureanu
2018-12-20 19:44   ` [PATCH v12 10/26] stash: convert apply to builtin Paul-Sebastian Ungureanu
2018-12-20 19:44   ` [PATCH v12 11/26] stash: convert drop and clear " Paul-Sebastian Ungureanu
2018-12-20 19:44   ` [PATCH v12 12/26] stash: convert branch " Paul-Sebastian Ungureanu
2018-12-20 19:44   ` [PATCH v12 13/26] stash: convert pop " Paul-Sebastian Ungureanu
2018-12-20 19:44   ` [PATCH v12 14/26] stash: convert list " Paul-Sebastian Ungureanu
2018-12-20 19:44   ` [PATCH v12 15/26] stash: convert show " Paul-Sebastian Ungureanu
2018-12-20 19:44   ` [PATCH v12 16/26] stash: convert store " Paul-Sebastian Ungureanu
2018-12-20 19:44   ` [PATCH v12 17/26] stash: convert create " Paul-Sebastian Ungureanu
2018-12-20 19:44   ` [PATCH v12 18/26] stash: convert push " Paul-Sebastian Ungureanu
2019-02-08 11:30     ` SZEDER Gábor
2019-02-10 22:17       ` Thomas Gummerer
2019-02-11  1:13         ` SZEDER Gábor
2019-02-12 23:18           ` Thomas Gummerer
2019-02-19  0:23             ` SZEDER Gábor
2019-02-19 10:47               ` Johannes Schindelin
2019-02-19 19:59                 ` Junio C Hamano
2019-02-20 21:01                   ` Johannes Schindelin
2019-02-19 23:59                 ` Thomas Gummerer
2019-02-20  4:37                   ` Junio C Hamano
2019-02-20 21:10                     ` Johannes Schindelin
2019-02-20 22:30                     ` Thomas Gummerer
2019-02-25 23:16                 ` [PATCH v13 00/27] Convert "git stash" to C builtin Thomas Gummerer
2019-02-25 23:16                   ` [PATCH v13 01/27] sha1-name.c: add `get_oidf()` which acts like `get_oid()` Thomas Gummerer
2019-02-25 23:16                   ` [PATCH v13 02/27] strbuf.c: add `strbuf_join_argv()` Thomas Gummerer
2019-02-25 23:16                   ` [PATCH v13 03/27] strbuf.c: add `strbuf_insertf()` and `strbuf_vinsertf()` Thomas Gummerer
2019-02-25 23:16                   ` [PATCH v13 04/27] ident: add the ability to provide a "fallback identity" Thomas Gummerer
2019-02-25 23:16                   ` [PATCH v13 05/27] stash: improve option parsing test coverage Thomas Gummerer
2019-02-25 23:16                   ` [PATCH v13 06/27] t3903: modernize style Thomas Gummerer
2019-02-25 23:16                   ` [PATCH v13 07/27] t3903: add test for --intent-to-add file Thomas Gummerer
2019-02-25 23:16                   ` [PATCH v13 08/27] stash: rename test cases to be more descriptive Thomas Gummerer
2019-02-25 23:16                   ` [PATCH v13 09/27] stash: add tests for `git stash show` config Thomas Gummerer
2019-02-25 23:16                   ` [PATCH v13 10/27] stash: mention options in `show` synopsis Thomas Gummerer
2019-02-25 23:16                   ` [PATCH v13 11/27] stash: convert apply to builtin Thomas Gummerer
2019-03-14 13:19                     ` regression in new built-in stash + fsmonitor (was Re: [PATCH v13 11/27] stash: convert apply to builtin) Ævar Arnfjörð Bjarmason
2019-03-14 15:20                       ` Johannes Schindelin
2019-03-14 15:40                         ` Ævar Arnfjörð Bjarmason
2019-03-14 22:45                           ` Johannes Schindelin
2019-03-14 23:39                             ` Ævar Arnfjörð Bjarmason
2019-03-15  2:23                               ` Ben Peart
2019-02-25 23:16                   ` [PATCH v13 12/27] stash: convert drop and clear to builtin Thomas Gummerer
2019-03-07 19:15                     ` Jeff King
2019-03-09 18:30                       ` Thomas Gummerer
2019-03-10 23:26                         ` Jeff King
2019-03-11  1:40                         ` Junio C Hamano
2019-03-11 21:40                           ` Thomas Gummerer
2019-02-25 23:16                   ` [PATCH v13 13/27] stash: convert branch " Thomas Gummerer
2019-02-25 23:16                   ` [PATCH v13 14/27] stash: convert pop " Thomas Gummerer
2019-02-25 23:16                   ` [PATCH v13 15/27] stash: convert list " Thomas Gummerer
2019-02-25 23:16                   ` [PATCH v13 16/27] stash: convert show " Thomas Gummerer
2019-02-25 23:16                   ` [PATCH v13 17/27] stash: convert store " Thomas Gummerer
2019-02-25 23:16                   ` [PATCH v13 18/27] stash: convert create " Thomas Gummerer
2019-03-07 19:18                     ` Jeff King
2019-03-08 15:30                       ` Johannes Schindelin
2019-03-09 18:26                         ` Thomas Gummerer
2019-03-11  1:47                           ` Junio C Hamano
2019-03-11  7:30                             ` Junio C Hamano
2019-03-11 21:42                               ` Thomas Gummerer
2019-03-11 22:16                                 ` Thomas Gummerer [this message]
2019-03-12  6:50                                   ` [PATCH v2] stash: pass pathspec as pointer Junio C Hamano
2019-03-12 22:35                                   ` Johannes Schindelin
2019-03-12 23:40                                     ` Thomas Gummerer
2019-03-13  1:47                                       ` Junio C Hamano
2019-03-13 22:14                                       ` Johannes Schindelin
2019-03-15 22:33                                         ` Thomas Gummerer
2019-02-25 23:16                   ` [PATCH v13 19/27] stash: convert push to builtin Thomas Gummerer
2019-02-25 23:16                   ` [PATCH v13 20/27] stash: make push -q quiet Thomas Gummerer
2019-02-25 23:16                   ` [PATCH v13 21/27] stash: convert save to builtin Thomas Gummerer
2019-02-25 23:16                   ` [PATCH v13 22/27] stash: optimize `get_untracked_files()` and `check_changes()` Thomas Gummerer
2019-02-25 23:16                   ` [PATCH v13 23/27] stash: replace all `write-tree` child processes with API calls Thomas Gummerer
2019-02-25 23:16                   ` [PATCH v13 24/27] stash: convert `stash--helper.c` into `stash.c` Thomas Gummerer
2019-02-25 23:16                   ` [PATCH v13 25/27] stash: add back the original, scripted `git stash` Thomas Gummerer
2019-02-25 23:16                   ` [PATCH v13 26/27] stash: optionally use the scripted version again Thomas Gummerer
2019-02-25 23:16                   ` [PATCH v13 27/27] tests: add a special setup where stash.useBuiltin is off Thomas Gummerer
2019-02-26 12:40                   ` [PATCH v13 00/27] Convert "git stash" to C builtin Johannes Schindelin
2019-02-26 20:48                     ` Thomas Gummerer
2019-02-26 21:45                   ` Ævar Arnfjörð Bjarmason
2019-02-26 22:37                     ` Johannes Schindelin
2019-03-03  1:24                   ` Junio C Hamano
2019-03-03  1:25                   ` Junio C Hamano
2019-03-03 10:03                     ` Thomas Gummerer
2018-12-20 19:44   ` [PATCH v12 19/26] stash: make push -q quiet Paul-Sebastian Ungureanu
2018-12-20 19:44   ` [PATCH v12 20/26] stash: convert save to builtin Paul-Sebastian Ungureanu
2018-12-20 19:44   ` [PATCH v12 21/26] stash: optimize `get_untracked_files()` and `check_changes()` Paul-Sebastian Ungureanu
2019-01-06 22:47     ` Thomas Gummerer
2018-12-20 19:44   ` [PATCH v12 22/26] stash: replace all `write-tree` child processes with API calls Paul-Sebastian Ungureanu
2018-12-20 19:44   ` [PATCH v12 23/26] stash: convert `stash--helper.c` into `stash.c` Paul-Sebastian Ungureanu
2018-12-20 19:44   ` [PATCH v12 24/26] stash: add back the original, scripted `git stash` Paul-Sebastian Ungureanu
2018-12-20 19:44   ` [PATCH v12 25/26] stash: optionally use the scripted version again Paul-Sebastian Ungureanu
2019-01-06 22:59     ` Thomas Gummerer
2018-12-20 19:44   ` [PATCH v12 26/26] tests: add a special setup where stash.useBuiltin is off Paul-Sebastian Ungureanu
2019-01-03 23:39   ` [PATCH v12 00/26] Convert "git stash" to C builtin Junio C Hamano
2019-01-18 12:06     ` Johannes Schindelin
2019-01-18 17:49       ` Junio C Hamano

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