From: Paul-Sebastian Ungureanu <ungureanupaulsebastian@gmail.com>
To: git@vger.kernel.org
Cc: t.gummerer@gmail.com
Subject: [PATCH v11 21/22] stash: optimize `get_untracked_files()` and `check_changes()`
Date: Fri, 23 Nov 2018 01:05:41 +0200 [thread overview]
Message-ID: <7ca8408f1e8c192324ac276ec42559c3343e9eee.1542925164.git.ungureanupaulsebastian@gmail.com> (raw)
In-Reply-To: <cover.1542925164.git.ungureanupaulsebastian@gmail.com>
This commits introduces a optimization by avoiding calling the
same functions again. For example, `git stash push -u`
would call at some points the following functions:
* `check_changes()` (inside `do_push_stash()`)
* `do_create_stash()`, which calls: `check_changes()` and
`get_untracked_files()`
Note that `check_changes()` also calls `get_untracked_files()`.
So, `check_changes()` is called 2 times and `get_untracked_files()`
3 times.
The old function `check_changes()` now consists of two functions:
`get_untracked_files()` and `check_changes_tracked_files()`.
These are the call chains for `push` and `create`:
* `push_stash()` -> `do_push_stash()` -> `do_create_stash()`
* `create_stash()` -> `do_create_stash()`
To prevent calling the same functions over and over again,
`check_changes()` inside `do_create_stash()` is now placed
in the caller functions (`create_stash()` and `do_push_stash()`).
This way `check_changes()` and `get_untracked files()` are called
only one time.
https://public-inbox.org/git/20180818223329.GJ11326@hank.intra.tgummerer.com/
Signed-off-by: Paul-Sebastian Ungureanu <ungureanupaulsebastian@gmail.com>
---
builtin/stash.c | 50 ++++++++++++++++++++++++++++---------------------
1 file changed, 29 insertions(+), 21 deletions(-)
diff --git a/builtin/stash.c b/builtin/stash.c
index c76a1936d5..5ad0f443ca 100644
--- a/builtin/stash.c
+++ b/builtin/stash.c
@@ -879,18 +879,18 @@ static int get_untracked_files(struct pathspec ps, int include_untracked,
}
/*
- * The return value of `check_changes()` can be:
+ * The return value of `check_changes_tracked_files()` can be:
*
* < 0 if there was an error
* = 0 if there are no changes.
* > 0 if there are changes.
*/
-static int check_changes(struct pathspec ps, int include_untracked)
+
+static int check_changes_tracked_files(struct pathspec ps)
{
int result;
struct rev_info rev;
struct object_id dummy;
- struct strbuf out = STRBUF_INIT;
/* No initial commit. */
if (get_oid("HEAD", &dummy))
@@ -918,14 +918,26 @@ static int check_changes(struct pathspec ps, int include_untracked)
if (diff_result_code(&rev.diffopt, result))
return 1;
+ return 0;
+}
+
+/*
+ * 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,
+ struct strbuf *untracked_files)
+{
+ int ret = 0;
+ if (check_changes_tracked_files(ps))
+ ret = 1;
+
if (include_untracked && get_untracked_files(ps, include_untracked,
- &out)) {
- strbuf_release(&out);
- return 1;
- }
+ untracked_files))
+ ret = 1;
- strbuf_release(&out);
- return 0;
+ return ret;
}
static int save_untracked_files(struct stash_info *info, struct strbuf *msg,
@@ -1134,7 +1146,7 @@ static int do_create_stash(struct pathspec ps, struct strbuf *stash_msg_buf,
head_commit = lookup_commit(the_repository, &info->b_commit);
}
- if (!check_changes(ps, include_untracked)) {
+ if (!check_changes(ps, include_untracked, &untracked_files)) {
ret = 1;
goto done;
}
@@ -1159,8 +1171,7 @@ static int do_create_stash(struct pathspec ps, struct strbuf *stash_msg_buf,
goto done;
}
- if (include_untracked && get_untracked_files(ps, include_untracked,
- &untracked_files)) {
+ if (include_untracked) {
if (save_untracked_files(info, &msg, untracked_files)) {
if (!quiet)
fprintf_ln(stderr, _("Cannot save "
@@ -1235,18 +1246,14 @@ 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));
- ret = do_create_stash(ps, &stash_msg_buf, 0, 0, &info, NULL, 0);
+ if (!check_changes_tracked_files(ps))
+ return 0;
- if (!ret)
+ if (!(ret = do_create_stash(ps, &stash_msg_buf, 0, 0, &info, NULL, 0)))
printf_ln("%s", oid_to_hex(&info.w_commit));
strbuf_release(&stash_msg_buf);
-
- /*
- * ret can be 1 if there were no changes. In this case, we should
- * not error out.
- */
- return ret < 0;
+ return ret;
}
static int do_push_stash(struct pathspec ps, const char *stash_msg, int quiet,
@@ -1256,6 +1263,7 @@ static int do_push_stash(struct pathspec ps, const char *stash_msg, int quiet,
struct stash_info info;
struct strbuf patch = STRBUF_INIT;
struct strbuf stash_msg_buf = STRBUF_INIT;
+ struct strbuf untracked_files = STRBUF_INIT;
if (patch_mode && keep_index == -1)
keep_index = 1;
@@ -1290,7 +1298,7 @@ static int do_push_stash(struct pathspec ps, const char *stash_msg, int quiet,
goto done;
}
- if (!check_changes(ps, include_untracked)) {
+ if (!check_changes(ps, include_untracked, &untracked_files)) {
if (!quiet)
printf_ln(_("No local changes to save"));
goto done;
--
2.19.1.878.g0482332a22
next prev parent reply other threads:[~2018-11-22 23:06 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <https://public-inbox.org/git/cover.1539553398.git.ungureanupaulsebastian@gmail.com/>
2018-11-22 23:05 ` [PATCH v11 00/22] Convert "git stash" to C builtin Paul-Sebastian Ungureanu
2018-11-22 23:05 ` [PATCH v11 01/22] sha1-name.c: add `get_oidf()` which acts like `get_oid()` Paul-Sebastian Ungureanu
2018-11-22 23:05 ` [PATCH v11 02/22] strbuf.c: add `strbuf_join_argv()` Paul-Sebastian Ungureanu
2018-11-22 23:05 ` [PATCH v11 03/22] strbuf.c: add `strbuf_insertf()` and `strbuf_vinsertf()` Paul-Sebastian Ungureanu
2018-11-25 21:43 ` Thomas Gummerer
2018-11-27 13:35 ` Johannes Schindelin
2018-11-27 22:32 ` Thomas Gummerer
2018-11-22 23:05 ` [PATCH v11 04/22] stash: improve option parsing test coverage Paul-Sebastian Ungureanu
2018-11-22 23:05 ` [PATCH v11 05/22] t3903: modernize style Paul-Sebastian Ungureanu
2018-11-22 23:05 ` [PATCH v11 06/22] stash: rename test cases to be more descriptive Paul-Sebastian Ungureanu
2018-11-22 23:05 ` [PATCH v11 07/22] stash: add tests for `git stash show` config Paul-Sebastian Ungureanu
2018-11-22 23:05 ` [PATCH v11 08/22] stash: mention options in `show` synopsis Paul-Sebastian Ungureanu
2018-11-22 23:05 ` [PATCH v11 09/22] stash: convert apply to builtin Paul-Sebastian Ungureanu
2018-11-22 23:05 ` [PATCH v11 10/22] stash: convert drop and clear " Paul-Sebastian Ungureanu
2018-11-22 23:05 ` [PATCH v11 11/22] stash: convert branch " Paul-Sebastian Ungureanu
2018-11-22 23:05 ` [PATCH v11 12/22] stash: convert pop " Paul-Sebastian Ungureanu
2018-11-22 23:05 ` [PATCH v11 13/22] stash: convert list " Paul-Sebastian Ungureanu
2018-11-22 23:05 ` [PATCH v11 14/22] stash: convert show " Paul-Sebastian Ungureanu
2018-11-22 23:05 ` [PATCH v11 15/22] stash: convert store " Paul-Sebastian Ungureanu
2018-11-22 23:05 ` [PATCH v11 16/22] stash: convert create " Paul-Sebastian Ungureanu
2018-11-22 23:05 ` [PATCH v11 17/22] stash: convert push " Paul-Sebastian Ungureanu
2018-11-22 23:05 ` [PATCH v11 18/22] stash: make push -q quiet Paul-Sebastian Ungureanu
2018-11-22 23:05 ` [PATCH v11 19/22] stash: convert save to builtin Paul-Sebastian Ungureanu
2018-11-22 23:05 ` [PATCH v11 20/22] stash: convert `stash--helper.c` into `stash.c` Paul-Sebastian Ungureanu
2018-11-26 5:30 ` Junio C Hamano
2018-11-27 13:46 ` Johannes Schindelin
2018-11-27 23:40 ` Ævar Arnfjörð Bjarmason
2018-11-29 10:58 ` Johannes Schindelin
2018-11-22 23:05 ` Paul-Sebastian Ungureanu [this message]
2018-11-22 23:05 ` [PATCH v11 22/22] stash: replace all `write-tree` child processes with API calls Paul-Sebastian Ungureanu
2018-11-25 21:55 ` [PATCH v11 00/22] Convert "git stash" to C builtin Thomas Gummerer
2018-11-26 5:47 ` Junio C Hamano
2018-11-26 7:38 ` Junio C Hamano
2018-11-29 12:54 ` Johannes Schindelin
2018-11-29 14:06 ` Johannes Schindelin
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