[PATCH] commit.c: use the generic "sha1_pos" function for lookup sha1

[Dmitry S. Dolzhenko]

Refactor binary search in "commit_graft_pos" function: use
generic "sha1_pos" function.

Signed-off-by: Dmitry S. Dolzhenko <dmitrys.dolzhe...@yandex.ru>
---
 commit.c | 24 +++++++++---------------
 1 file changed, 9 insertions(+), 15 deletions(-)

diff --git a/commit.c b/commit.c
index 6bf4fe0..8edaeb7 100644
--- a/commit.c
+++ b/commit.c
@@ -10,6 +10,7 @@
 #include "mergesort.h"
 #include "commit-slab.h"
 #include "prio-queue.h"
+#include "sha1-lookup.h"
  static struct commit_extra_header *read_commit_extra_header_lines(const char 
*buf, size_t len, const char **);
 @@ -114,23 +115,16 @@ static unsigned long parse_commit_date(const char *buf, 
const char *tail)
 static struct commit_graft **commit_graft;
 static int commit_graft_alloc, commit_graft_nr;
 +static const unsigned char *commit_graft_sha1_access(size_t index, void 
*table)
+{
+       struct commit_graft **commit_graft_table = table;
+       return commit_graft_table[index]->sha1;
+}
+
 static int commit_graft_pos(const unsigned char *sha1)
 {
-       int lo, hi;
-       lo = 0;
-       hi = commit_graft_nr;
-       while (lo < hi) {
-               int mi = (lo + hi) / 2;
-               struct commit_graft *graft = commit_graft[mi];
-               int cmp = hashcmp(sha1, graft->sha1);
-               if (!cmp)
-                       return mi;
-               if (cmp < 0)
-                       hi = mi;
-               else
-                       lo = mi + 1;
-       }
-       return -lo - 1;
+       return sha1_pos(sha1, commit_graft, commit_graft_nr,
+                          commit_graft_sha1_access);
 }
  int register_commit_graft(struct commit_graft *graft, int ignore_dups)
-- 
1.8.5.3