Subject: [PATCH v3 1/2] Factor find_pack_entry()'s core out

From: Nguyễn Thái Ngọc Duy <[email-masked]>
Date: Wed, 1 Feb 2012 20:48:54 +0700

Signed-off-by: Nguyễn Thái Ngọc Duy <[email-masked]>
---
 sha1_file.c |   59 +++++++++++++++++++++++++++++++++--------------------------
 1 files changed, 33 insertions(+), 26 deletions(-)

diff --git a/sha1_file.c b/sha1_file.c
index 88f2151..ff5bf42 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -2010,11 +2010,42 @@ int is_pack_valid(struct packed_git *p)
 	return !open_packed_git(p);
 }
 
+static int find_pack_entry_1(const unsigned char *sha1,
+			     struct packed_git *p, struct pack_entry *e)
+{
+	off_t offset;
+	if (p->num_bad_objects) {
+		unsigned i;
+		for (i = 0; i < p->num_bad_objects; i++)
+			if (!hashcmp(sha1, p->bad_object_sha1 + 20 * i))
+				return 0;
+	}
+
+	offset = find_pack_entry_one(sha1, p);
+	if (!offset)
+		return 0;
+
+	/*
+	 * We are about to tell the caller where they can locate the
+	 * requested object.  We better make sure the packfile is
+	 * still here and can be accessed before supplying that
+	 * answer, as it may have been deleted since the index was
+	 * loaded!
+	 */
+	if (!is_pack_valid(p)) {
+		warning("packfile %s cannot be accessed", p->pack_name);
+		return 0;
+	}
+	e->offset = offset;
+	e->p = p;
+	hashcpy(e->sha1, sha1);
+	return 1;
+}
+
 static int find_pack_entry(const unsigned char *sha1, struct pack_entry *e)
 {
 	static struct packed_git *last_found = (void *)1;
 	struct packed_git *p;
-	off_t offset;
 
 	prepare_packed_git();
 	if (!packed_git)
@@ -2022,35 +2053,11 @@ static int find_pack_entry(const unsigned char *sha1, struct pack_entry *e)
 	p = (last_found == (void *)1) ? packed_git : last_found;
 
 	do {
-		if (p->num_bad_objects) {
-			unsigned i;
-			for (i = 0; i < p->num_bad_objects; i++)
-				if (!hashcmp(sha1, p->bad_object_sha1 + 20 * i))
-					goto next;
-		}
-
-		offset = find_pack_entry_one(sha1, p);
-		if (offset) {
-			/*
-			 * We are about to tell the caller where they can
-			 * locate the requested object.  We better make
-			 * sure the packfile is still here and can be
-			 * accessed before supplying that answer, as
-			 * it may have been deleted since the index
-			 * was loaded!
-			 */
-			if (!is_pack_valid(p)) {
-				warning("packfile %s cannot be accessed", p->pack_name);
-				goto next;
-			}
-			e->offset = offset;
-			e->p = p;
-			hashcpy(e->sha1, sha1);
+		if (find_pack_entry_1(sha1, p, e)) {
 			last_found = p;
 			return 1;
 		}
 
-		next:
 		if (p == last_found)
 			p = packed_git;
 		else
-- 
1.7.8.36.g69ee2