[PATCH v3 1/8] packfile: make get_delta_base() non static

[Christian Couder <christian.couder@gmail.com>]

From: Jeff King <peff@peff.net>

As get_delta_base() will be used outside 'packfile.c' in
a following commit, let's make it non static and let's
declare it in 'packfile.h'.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
---
 packfile.c | 10 +++++-----
 packfile.h |  7 +++++++
 2 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/packfile.c b/packfile.c
index 6974903e58..04d387f312 100644
--- a/packfile.c
+++ b/packfile.c
@@ -1037,11 +1037,11 @@ const struct packed_git *has_packed_and_bad(const unsigned char *sha1)
 	return NULL;
 }
 
-static off_t get_delta_base(struct packed_git *p,
-				    struct pack_window **w_curs,
-				    off_t *curpos,
-				    enum object_type type,
-				    off_t delta_obj_offset)
+off_t get_delta_base(struct packed_git *p,
+		     struct pack_window **w_curs,
+		     off_t *curpos,
+		     enum object_type type,
+		     off_t delta_obj_offset)
 {
 	unsigned char *base_info = use_pack(p, w_curs, *curpos, NULL);
 	off_t base_offset;
diff --git a/packfile.h b/packfile.h
index cc7eaffe1b..1265fd9b06 100644
--- a/packfile.h
+++ b/packfile.h
@@ -126,6 +126,13 @@ extern unsigned long unpack_object_header_buffer(const unsigned char *buf, unsig
 extern unsigned long get_size_from_delta(struct packed_git *, struct pack_window **, off_t);
 extern int unpack_object_header(struct packed_git *, struct pack_window **, off_t *, unsigned long *);
 
+/*
+ * Return the offset of the object that is the delta base of the object at curpos.
+ */
+extern off_t get_delta_base(struct packed_git *p, struct pack_window **w_curs,
+			    off_t *curpos, enum object_type type,
+			    off_t delta_obj_offset);
+
 extern void release_pack_memory(size_t);
 
 /* global flag to enable extra checks when accessing packed objects */
-- 
2.18.0.555.g17f9c4abba