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[PATCH v2 06/10] setup_git_env: use git_pathdup instead of xmalloc + sprintf

From
Jeff King <peff@peff.net>
Date
Jun 19, 2014, 21:28 UTC
Message-ID
<20140619212800.GF28474@sigill.intra.peff.net>
In-Reply-To
<20140619211659.GA32412@sigill.intra.peff.net>

This is shorter, harder to get wrong, and more clearly captures the intent.

Signed-off-by: Jeff King <peff@peff.net>
---
I wondered if there was a reason to avoid this (because we are in
setup_git_env, which can potentially be called by git_pathdup). But the
git_graft_file initialization below already uses it, and I
double-checked that it is safe once git_dir is set.
 environment.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)
diff --git a/environment.c b/environment.c
index 4dac5e9..4de7b81 100644
--- a/environment.c
+++ b/environment.c
@@ -135,15 +135,11 @@ static void setup_git_env(void)
 	gitfile = read_gitfile(git_dir);
 	git_dir = xstrdup(gitfile ? gitfile : git_dir);
 	git_object_dir = getenv(DB_ENVIRONMENT);
-	if (!git_object_dir) {
-		git_object_dir = xmalloc(strlen(git_dir) + 9);
-		sprintf(git_object_dir, "%s/objects", git_dir);
-	}
+	if (!git_object_dir)
+		git_object_dir = git_pathdup("objects");
 	git_index_file = getenv(INDEX_ENVIRONMENT);
-	if (!git_index_file) {
-		git_index_file = xmalloc(strlen(git_dir) + 7);
-		sprintf(git_index_file, "%s/index", git_dir);
-	}
+	if (!git_index_file)
+		git_index_file = git_pathdup("index");
 	git_graft_file = getenv(GRAFT_ENVIRONMENT);
 	if (!git_graft_file)
 		git_graft_file = git_pathdup("info/grafts");
-- 
2.0.0.566.gfe3e6b2
Previous: Jeff KingNext: Eric Sunshine
Message 12 of 27 in “dropping manual malloc calculations”
  1. 0/2 dropping manual malloc calculationsJeff King, Jun 18, 2014
  2. 1/2 strbuf: add xstrdup_fmt helperJeff King, Jun 18, 2014
  3. Junio C HamanoJun 18, 2014
  4. Jeff KingJun 19, 2014
  5. Junio C HamanoJun 19, 2014
  6. dropping manual malloc calculationsJeff King, Jun 19, 2014
  7. 01/10 strbuf: add xstrfmt helperJeff King, Jun 19, 2014
  8. 02/10 use xstrfmt in favor of manual size calculationsJeff King, Jun 19, 2014
  9. 03/10 use xstrdup instead of xmalloc + strcpyJeff King, Jun 19, 2014
  10. 04/10 use xstrfmt to replace xmalloc + sprintfJeff King, Jun 19, 2014
  11. 05/10 use xstrfmt to replace xmalloc + strcpy/strcatJeff King, Jun 19, 2014
  12. 06/10 setup_git_env: use git_pathdup instead of xmalloc + sprintfJeff King, Jun 19, 2014
  13. Eric SunshineJun 23, 2014
  14. Junio C HamanoJun 23, 2014
  15. Duy NguyenJun 24, 2014
  16. Duy NguyenJun 24, 2014
  17. Jeff KingJun 24, 2014
  18. Duy NguyenJun 25, 2014
  19. Junio C HamanoJun 25, 2014
  20. Jeff KingJun 25, 2014
  21. Junio C HamanoJun 25, 2014
  22. 07/10 sequencer: use argv_array_pushfJeff King, Jun 19, 2014
  23. 08/10 merge: use argv_array when spawning merge strategyJeff King, Jun 19, 2014
  24. 09/10 walker_fetch: fix minor memory leakJeff King, Jun 19, 2014
  25. 10/10 unique_path: fix unlikely heap overflowJeff King, Jun 19, 2014
  26. René ScharfeJun 19, 2014
  27. 2/2 use xstrdup_fmt in favor of manual size calculationsJeff King, Jun 18, 2014

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