Re: [PATCH 2/2] diffcore-pickaxe: fill_one() doesn't modify textconv

2013-04-04 Thread Matthieu Moy
Simon Ruderich si...@ruderich.org writes:

 --- a/diffcore-pickaxe.c
 +++ b/diffcore-pickaxe.c
 @@ -75,10 +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)

Nice, but perhaps you should elaborate a bit more in the commit message
to say this is a cleanup without real change.

-- 
Matthieu Moy
http://www-verimag.imag.fr/~moy/
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Re: [PATCH 2/2] diffcore-pickaxe: fill_one() doesn't modify textconv

2013-04-04 Thread Jeff King
On Thu, Apr 04, 2013 at 06:05:58PM +0200, Simon Ruderich wrote:

 Signed-off-by: Simon Ruderich si...@ruderich.org
 ---
  diffcore-pickaxe.c | 12 ++--
  1 file changed, 6 insertions(+), 6 deletions(-)
 
 diff --git a/diffcore-pickaxe.c b/diffcore-pickaxe.c
 index f814a52..c378ea0 100644
 --- a/diffcore-pickaxe.c
 +++ b/diffcore-pickaxe.c
 @@ -75,10 +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)) {
 - mf-size = fill_textconv(*textconv, one, mf-ptr);
 + mf-size = fill_textconv(textconv, one, mf-ptr);
   } else {
   memset(mf, 0, sizeof(*mf));
   }
 @@ -101,8 +101,8 @@ static int diff_grep(struct diff_filepair *p, struct 
 diff_options *o,
   textconv_two = get_textconv(p-two);
   }
  
 - 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);

This is a sensible cleanup, though as I mentioned elsewhere, I think it
would make sense to come first before the other patch.

After this, fill_one is _almost_ identical to just calling
fill_textconv; the exception is that for the !DIFF_FILE_VALID case,
fill_textconv gives us an empty buffer rather than a NULL one.

What do you think of something like this on top (this is on top of your
patches, but again, I would suggest re-ordering your two, so it would
come as patch 2/3):

 diffcore-pickaxe.c | 30 ++
 1 file changed, 10 insertions(+), 20 deletions(-)

diff --git a/diffcore-pickaxe.c b/diffcore-pickaxe.c
index c378ea0..26ddf00 100644
--- a/diffcore-pickaxe.c
+++ b/diffcore-pickaxe.c
@@ -74,16 +74,6 @@ static void diffgrep_consume(void *priv, char *line, 
unsigned long len)
line[len] = hold;
 }
 
-static void fill_one(struct diff_filespec *one,
-mmfile_t *mf, struct userdiff_driver *textconv)
-{
-   if (DIFF_FILE_VALID(one)) {
-   mf-size = fill_textconv(textconv, one, mf-ptr);
-   } else {
-   memset(mf, 0, sizeof(*mf));
-   }
-}
-
 static int diff_grep(struct diff_filepair *p, struct diff_options *o,
 regex_t *regexp, kwset_t kws)
 {
@@ -101,15 +91,15 @@ static int diff_grep(struct diff_filepair *p, struct 
diff_options *o,
textconv_two = get_textconv(p-two);
}
 
-   fill_one(p-one, mf1, textconv_one);
-   fill_one(p-two, mf2, textconv_two);
+   mf1.size = fill_textconv(textconv_one, p-one, mf1.ptr);
+   mf2.size = fill_textconv(textconv_two, p-two, mf2.ptr);
 
-   if (!mf1.ptr) {
-   if (!mf2.ptr)
+   if (!DIFF_FILE_VALID(p-one)) {
+   if (!DIFF_FILE_VALID(p-two))
return 0; /* ignore unmerged */
/* created two -- does it have what we are looking for? */
hit = !regexec(regexp, mf2.ptr, 1, regmatch, 0);
-   } else if (!mf2.ptr) {
+   } else if (!DIFF_FILE_VALID(p-two)) {
/* removed one -- did it have what we are looking for? */
hit = !regexec(regexp, mf1.ptr, 1, regmatch, 0);
} else {
@@ -228,16 +218,16 @@ 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);
+   mf1.size = fill_textconv(textconv_one, p-one, mf1.ptr);
+   mf2.size = fill_textconv(textconv_two, p-two, mf2.ptr);
 
-   if (!mf1.ptr) {
-   if (!mf2.ptr)
+   if (!DIFF_FILE_VALID(p-one)) {
+   if (!DIFF_FILE_VALID(p-two))
ret = 0; /* ignore unmerged */
/* created */
ret = contains(mf2, o, regexp, kws) != 0;
}
-   else if (!mf2.ptr) /* removed */
+   else if (!DIFF_FILE_VALID(p-two)) /* removed */
ret = contains(mf1, o, regexp, kws) != 0;
else
ret = contains(mf1, o, regexp, kws) !=
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