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[PATCH v2 1/3] diffcore-pickaxe: remove unnecessary call to get_textconv()

From
Simon Ruderich <simon@ruderich.org>
Date
Apr 4, 2013, 20:20 UTC
Message-ID
<ed31727421dc3000e943e62a8d82ac1af6589733.1365105971.git.simon@ruderich.org>
In-Reply-To
<7vr4iqi2uw.fsf@alter.siamese.dyndns.org>

get_textconv() is called in diff_grep() to determine the textconv driver before calling fill_one() and then again in fill_one(). Remove this unnecessary call by determining the textconv driver before calling fill_one().

With this change it's also no longer necessary for fill_one() to modify the textconv argument, therefore pass a pointer instead of a pointer to a pointer.

Signed-off-by: Simon Ruderich <simon@ruderich.org>
---
Hello,

I've reordered the patches as requested and included Jeff's cleanup patch.

Regards Simon

 diffcore-pickaxe.c | 23 ++++++++++++++---------
 1 file changed, 14 insertions(+), 9 deletions(-)
diff --git a/diffcore-pickaxe.c b/diffcore-pickaxe.c
index b097fa7..8f955f8 100644
--- a/diffcore-pickaxe.c
+++ b/diffcore-pickaxe.c
@@ -75,11 +75,10 @@ static void diffgrep_consume(void *priv, char *line, unsigned long len)
 }
 
 static void fill_one(struct diff_filespec *one,
-		     mmfile_t *mf, struct userdiff_driver **textconv)
+		     mmfile_t *mf, struct userdiff_driver *textconv)
 {
 	if (DIFF_FILE_VALID(one)) {
-		*textconv = get_textconv(one);
-		mf->size = fill_textconv(*textconv, one, &mf->ptr);
+		mf->size = fill_textconv(textconv, one, &mf->ptr);
 	} else {
 		memset(mf, 0, sizeof(*mf));
 	}
@@ -97,8 +96,11 @@ static int diff_grep(struct diff_filepair *p, struct diff_options *o,
 	if (diff_unmodified_pair(p))
 		return 0;
 
-	fill_one(p->one, &mf1, &textconv_one);
-	fill_one(p->two, &mf2, &textconv_two);
+	textconv_one = get_textconv(p->one);
+	textconv_two = get_textconv(p->two);
+
+	fill_one(p->one, &mf1, textconv_one);
+	fill_one(p->two, &mf2, textconv_two);
 
 	if (!mf1.ptr) {
 		if (!mf2.ptr)
@@ -201,14 +203,17 @@ static unsigned int contains(mmfile_t *mf, struct diff_options *o,
 static int has_changes(struct diff_filepair *p, struct diff_options *o,
 		       regex_t *regexp, kwset_t kws)
 {
-	struct userdiff_driver *textconv_one = get_textconv(p->one);
-	struct userdiff_driver *textconv_two = get_textconv(p->two);
+	struct userdiff_driver *textconv_one = NULL;
+	struct userdiff_driver *textconv_two = NULL;
 	mmfile_t mf1, mf2;
 	int ret;
 
 	if (!o->pickaxe[0])
 		return 0;
 
+	textconv_one = get_textconv(p->one);
+	textconv_two = get_textconv(p->two);
+
 	/*
 	 * If we have an unmodified pair, we know that the count will be the
 	 * same and don't even have to load the blobs. Unless textconv is in
@@ -219,8 +224,8 @@ static int has_changes(struct diff_filepair *p, struct diff_options *o,
 	if (textconv_one == textconv_two && diff_unmodified_pair(p))
 		return 0;
 
-	fill_one(p->one, &mf1, &textconv_one);
-	fill_one(p->two, &mf2, &textconv_two);
+	fill_one(p->one, &mf1, textconv_one);
+	fill_one(p->two, &mf2, textconv_two);
 
 	if (!mf1.ptr) {
 		if (!mf2.ptr)
-- 
1.8.2

-- 
+ privacy is necessary
+ using gnupg http://gnupg.org
+ public key id: 0x92FEFDB7E44C32F9
Previous: Junio C HamanoNext: Junio C Hamano
Message 8 of 27 in “[BUG] git log -S not respecting --no-textconv”
  1. Matthieu MoyApr 4, 2013
  2. 1/2 diffcore-pickaxe: respect --no-textconvSimon Ruderich, Apr 4, 2013
  3. Matthieu MoyApr 4, 2013
  4. Jeff KingApr 4, 2013
  5. Junio C HamanoApr 4, 2013
  6. Jeff KingApr 4, 2013
  7. Junio C HamanoApr 4, 2013
  8. 1/3 diffcore-pickaxe: remove unnecessary call to get_textconv()Simon Ruderich, Apr 4, 2013
  9. Junio C HamanoApr 4, 2013
  10. Junio C HamanoApr 4, 2013
  11. Jeff KingApr 4, 2013
  12. Junio C HamanoApr 4, 2013
  13. Simon RuderichApr 5, 2013
  14. 2/3 diffcore-pickaxe: remove fill_one()Simon Ruderich, Apr 4, 2013
  15. Jeff KingApr 5, 2013
  16. Junio C HamanoApr 5, 2013
  17. 1/3 diffcore-pickaxe: port optimization from has_changes() to diff_grep()Junio C Hamano, Apr 5, 2013
  18. 2/3 diffcore-pickaxe: fix leaks in "log -S<block>" and "log -G<pattern>"Junio C Hamano, Apr 5, 2013
  19. 3/3 diffcore-pickaxe: unify setup and teardown code between log -S/-GJunio C Hamano, Apr 5, 2013
  20. Jeff KingApr 5, 2013
  21. Junio C HamanoApr 5, 2013
  22. Jeff KingApr 5, 2013
  23. Junio C HamanoApr 5, 2013
  24. 3/3 diffcore-pickaxe: respect --no-textconvSimon Ruderich, Apr 4, 2013
  25. Matthieu MoyApr 5, 2013
  26. 3/3 diffcore-pickaxe: respect --no-textconvSimon Ruderich, Apr 5, 2013
  27. Junio C HamanoApr 5, 2013

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