From: Jeff King <peff@peff.net>
To: git@vger.kernel.org
Subject: [PATCH 06/68] add git_path_buf helper function
Date: Thu, 24 Sep 2015 17:05:40 -0400 [thread overview]
Message-ID: <20150924210540.GC30946@sigill.intra.peff.net> (raw)
In-Reply-To: <20150924210225.GA23624@sigill.intra.peff.net>
If you have a function that uses git_path a lot, but would
prefer to avoid the static buffers, it's useful to keep a
single scratch buffer locally and reuse it for each call.
You used to be able to do this with git_snpath:
char buf[PATH_MAX];
foo(git_snpath(buf, sizeof(buf), "foo"));
bar(git_snpath(buf, sizeof(buf), "bar"));
but since 1a83c24, git_snpath has been replaced with
strbuf_git_path. This is good, because it removes the
arbitrary PATH_MAX limit. But using strbuf_git_path is more
awkward for two reasons:
1. It adds to the buffer, rather than replacing it. This
is consistent with other strbuf functions, but makes
reuse of a single buffer more tedious.
2. It doesn't return the buffer, so you can't format
as part of a function's arguments.
The new git_path_buf solves both of these, so you can use it
like:
struct strbuf buf = STRBUF_INIT;
foo(git_path_buf(&buf, "foo"));
bar(git_path_buf(&buf, "bar"));
strbuf_release(&buf);
Signed-off-by: Jeff King <peff@peff.net>
---
cache.h | 2 ++
path.c | 10 ++++++++++
2 files changed, 12 insertions(+)
diff --git a/cache.h b/cache.h
index 79066e5..e231e47 100644
--- a/cache.h
+++ b/cache.h
@@ -723,6 +723,8 @@ extern char *mksnpath(char *buf, size_t n, const char *fmt, ...)
__attribute__((format (printf, 3, 4)));
extern void strbuf_git_path(struct strbuf *sb, const char *fmt, ...)
__attribute__((format (printf, 2, 3)));
+extern char *git_path_buf(struct strbuf *buf, const char *fmt, ...)
+ __attribute__((format (printf, 2, 3)));
extern void strbuf_git_path_submodule(struct strbuf *sb, const char *path,
const char *fmt, ...)
__attribute__((format (printf, 3, 4)));
diff --git a/path.c b/path.c
index 95acbaf..46a4d27 100644
--- a/path.c
+++ b/path.c
@@ -175,6 +175,16 @@ static void do_git_path(struct strbuf *buf, const char *fmt, va_list args)
strbuf_cleanup_path(buf);
}
+char *git_path_buf(struct strbuf *buf, const char *fmt, ...)
+{
+ va_list args;
+ strbuf_reset(buf);
+ va_start(args, fmt);
+ do_git_path(buf, fmt, args);
+ va_end(args);
+ return buf->buf;
+}
+
void strbuf_git_path(struct strbuf *sb, const char *fmt, ...)
{
va_list args;
--
2.6.0.rc3.454.g204ad51
next prev parent reply other threads:[~2015-09-24 21:05 UTC|newest]
Thread overview: 93+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-24 21:02 [PATCH v2 0/68] war on sprintf Jeff King
2015-09-24 21:02 ` [PATCH 01/68] show-branch: avoid segfault with --reflog of unborn branch Jeff King
2015-09-24 21:03 ` [PATCH 02/68] mailsplit: fix FILE* leak in split_maildir Jeff King
2015-09-24 21:03 ` [PATCH 03/68] archive-tar: fix minor indentation violation Jeff King
2015-09-24 21:05 ` [PATCH 04/68] fsck: don't fsck alternates for connectivity-only check Jeff King
2015-09-24 21:05 ` [PATCH 05/68] add xsnprintf helper function Jeff King
2015-09-24 21:05 ` Jeff King [this message]
2015-09-24 21:05 ` [PATCH 07/68] strbuf: make strbuf_complete_line more generic Jeff King
2015-09-24 21:05 ` [PATCH 08/68] add reentrant variants of sha1_to_hex and find_unique_abbrev Jeff King
2015-09-24 21:05 ` [PATCH 09/68] fsck: use strbuf to generate alternate directories Jeff King
2015-09-24 21:05 ` [PATCH 10/68] mailsplit: make PATH_MAX buffers dynamic Jeff King
2015-09-24 21:05 ` [PATCH 11/68] trace: use strbuf for quote_crnl output Jeff King
2015-09-24 21:05 ` [PATCH 12/68] progress: store throughput display in a strbuf Jeff King
2015-09-24 21:06 ` [PATCH 13/68] test-dump-cache-tree: avoid overflow of cache-tree name Jeff King
2015-09-24 21:06 ` [PATCH 14/68] compat/inet_ntop: fix off-by-one in inet_ntop4 Jeff King
2015-09-24 21:06 ` [PATCH 15/68] convert trivial sprintf / strcpy calls to xsnprintf Jeff King
2015-09-24 21:06 ` [PATCH 16/68] archive-tar: use xsnprintf for trivial formatting Jeff King
2015-09-24 21:06 ` [PATCH 17/68] use xsnprintf for generating git object headers Jeff King
2015-09-24 21:06 ` [PATCH 18/68] find_short_object_filename: convert sprintf to xsnprintf Jeff King
2015-09-24 21:06 ` [PATCH 19/68] stop_progress_msg: " Jeff King
2015-09-24 21:06 ` [PATCH 20/68] compat/hstrerror: convert sprintf to snprintf Jeff King
2015-09-24 21:06 ` [PATCH 21/68] grep: use xsnprintf to format failure message Jeff King
2015-09-24 21:06 ` [PATCH 22/68] entry.c: convert strcpy to xsnprintf Jeff King
2015-09-24 21:06 ` [PATCH 23/68] add_packed_git: convert strcpy into xsnprintf Jeff King
2015-09-24 21:06 ` [PATCH 24/68] http-push: replace strcat with xsnprintf Jeff King
2015-09-24 21:07 ` [PATCH 25/68] receive-pack: convert strncpy to xsnprintf Jeff King
2015-09-24 21:07 ` [PATCH 26/68] replace trivial malloc + sprintf / strcpy calls with xstrfmt Jeff King
2015-09-24 21:07 ` [PATCH 27/68] config: use xstrfmt in normalize_value Jeff King
2015-09-24 21:07 ` [PATCH 28/68] fetch: replace static buffer with xstrfmt Jeff King
2015-09-24 21:07 ` [PATCH 29/68] use strip_suffix and xstrfmt to replace suffix Jeff King
2015-09-24 21:07 ` [PATCH 30/68] ref-filter: drop sprintf and strcpy calls Jeff King
2015-09-24 21:07 ` [PATCH 31/68] help: drop prepend function in favor of xstrfmt Jeff King
2015-09-24 21:07 ` [PATCH 32/68] mailmap: replace strcpy with xstrdup Jeff King
2015-09-24 21:07 ` [PATCH 33/68] read_branches_file: simplify string handling Jeff King
2015-09-24 21:07 ` [PATCH 34/68] read_remotes_file: " Jeff King
2015-09-24 21:07 ` [PATCH 35/68] resolve_ref: use strbufs for internal buffers Jeff King
2015-09-24 21:07 ` [PATCH 36/68] upload-archive: convert sprintf to strbuf Jeff King
2015-09-24 21:07 ` [PATCH 37/68] remote-ext: simplify git pkt-line generation Jeff King
2015-09-24 21:07 ` [PATCH 38/68] http-push: use strbuf instead of fwrite_buffer Jeff King
2015-09-24 21:07 ` [PATCH 39/68] http-walker: store url in a strbuf Jeff King
2015-09-24 21:07 ` [PATCH 40/68] sha1_get_pack_name: use " Jeff King
2015-09-24 21:07 ` [PATCH 41/68] init: use strbufs to store paths Jeff King
2015-09-29 23:50 ` Michael Blume
2015-09-30 0:23 ` Jeff King
2015-09-30 20:00 ` Junio C Hamano
2015-10-01 2:51 ` Jeff King
2015-10-02 6:00 ` Torsten Bögershausen
2015-10-02 15:33 ` Jeff King
2015-10-03 5:58 ` Torsten Bögershausen
2015-10-03 16:54 ` Junio C Hamano
2015-10-03 21:12 ` Torsten Bögershausen
2015-10-04 3:37 ` Jeff King
2015-10-04 6:31 ` Torsten Bögershausen
2015-10-05 3:41 ` Jeff King
2015-10-05 3:43 ` [PATCH 1/3] precompose_utf8: drop unused variable Jeff King
2015-10-06 3:24 ` Torsten Bögershausen
2015-10-05 3:45 ` [PATCH 2/3] probe_utf8_pathname_composition: use internal strbuf Jeff King
2015-10-05 3:46 ` [PATCH 3/3] init: use strbufs to store paths Jeff King
2015-09-24 21:07 ` [PATCH 42/68] apply: convert root string to strbuf Jeff King
2015-09-24 21:07 ` [PATCH 43/68] transport: use strbufs for status table "quickref" strings Jeff King
2015-09-24 21:07 ` [PATCH 44/68] merge-recursive: convert malloc / strcpy to strbuf Jeff King
2015-09-24 21:07 ` [PATCH 45/68] enter_repo: convert fixed-size buffers to strbufs Jeff King
2015-09-24 21:07 ` [PATCH 46/68] remove_leading_path: use a strbuf for internal storage Jeff King
2015-09-24 21:07 ` [PATCH 47/68] write_loose_object: convert to strbuf Jeff King
2015-09-24 21:07 ` [PATCH 48/68] diagnose_invalid_index_path: use strbuf to avoid strcpy/strcat Jeff King
2015-09-24 21:07 ` [PATCH 49/68] fetch-pack: use argv_array for index-pack / unpack-objects Jeff King
2015-09-24 21:07 ` [PATCH 50/68] http-push: use an argv_array for setup_revisions Jeff King
2015-09-24 21:07 ` [PATCH 51/68] stat_tracking_info: convert to argv_array Jeff King
2015-09-24 21:08 ` [PATCH 52/68] daemon: use cld->env_array when re-spawning Jeff King
2015-09-24 21:08 ` [PATCH 53/68] use sha1_to_hex_r() instead of strcpy Jeff King
2015-09-24 21:08 ` [PATCH 54/68] drop strcpy in favor of raw sha1_to_hex Jeff King
2015-09-24 23:42 ` Eric Sunshine
2015-09-25 1:36 ` Jeff King
2015-09-24 21:08 ` [PATCH 55/68] color: add overflow checks for parsing colors Jeff King
2015-09-24 21:08 ` [PATCH 56/68] use alloc_ref rather than hand-allocating "struct ref" Jeff King
2015-09-24 21:08 ` [PATCH 57/68] avoid sprintf and strcpy with flex arrays Jeff King
2015-09-24 21:08 ` [PATCH 58/68] receive-pack: simplify keep_arg computation Jeff King
2015-09-24 21:08 ` [PATCH 59/68] help: clean up kfmclient munging Jeff King
2015-09-24 21:08 ` [PATCH 60/68] prefer memcpy to strcpy Jeff King
2015-09-27 11:19 ` René Scharfe
2015-09-27 13:06 ` Torsten Bögershausen
2015-09-27 13:13 ` René Scharfe
2015-09-27 13:24 ` René Scharfe
2015-09-28 7:09 ` Rasmus Villemoes
2015-09-24 21:08 ` [PATCH 61/68] color: add color_set helper for copying raw colors Jeff King
2015-09-24 21:08 ` [PATCH 62/68] notes: document length of fanout path with a constant Jeff King
2015-09-24 21:08 ` [PATCH 63/68] convert strncpy to memcpy Jeff King
2015-09-24 21:08 ` [PATCH 64/68] fsck: drop inode-sorting code Jeff King
2015-09-24 21:08 ` [PATCH 65/68] Makefile: drop D_INO_IN_DIRENT build knob Jeff King
2015-09-24 21:08 ` [PATCH 66/68] fsck: use for_each_loose_file_in_objdir Jeff King
2015-09-26 3:36 ` Jeff King
2015-09-24 21:08 ` [PATCH 67/68] use strbuf_complete to conditionally append slash Jeff King
2015-09-24 21:08 ` [PATCH 68/68] name-rev: use strip_suffix to avoid magic numbers Jeff King
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