[PATCH v2 12/25] pack: move unpack_object_header()

[Jonathan Tan]

Signed-off-by: Jonathan Tan <jonathanta...@google.com>
---
 cache.h     |  1 -
 pack.h      |  2 ++
 packfile.c  | 25 +++++++++++++++++++++++++
 sha1_file.c | 25 -------------------------
 4 files changed, 27 insertions(+), 26 deletions(-)

diff --git a/cache.h b/cache.h
index f020dfade..9c70759a6 100644
--- a/cache.h
+++ b/cache.h
@@ -1661,7 +1661,6 @@ extern off_t find_pack_entry_one(const unsigned char 
*sha1, struct packed_git *)
 
 extern int is_pack_valid(struct packed_git *);
 extern void *unpack_entry(struct packed_git *, off_t, enum object_type *, 
unsigned long *);
-extern unsigned long unpack_object_header_buffer(const unsigned char *buf, 
unsigned long len, enum object_type *type, unsigned long *sizep);
 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 *);
 
diff --git a/pack.h b/pack.h
index cad5ed488..4a7f88a38 100644
--- a/pack.h
+++ b/pack.h
@@ -167,4 +167,6 @@ extern void reprepare_packed_git(void);
  */
 unsigned long approximate_object_count(void);
 
+extern unsigned long unpack_object_header_buffer(const unsigned char *buf, 
unsigned long len, enum object_type *type, unsigned long *sizep);
+
 #endif
diff --git a/packfile.c b/packfile.c
index a517172f7..6e4f1c6e3 100644
--- a/packfile.c
+++ b/packfile.c
@@ -883,3 +883,28 @@ void reprepare_packed_git(void)
        prepare_packed_git_run_once = 0;
        prepare_packed_git();
 }
+
+unsigned long unpack_object_header_buffer(const unsigned char *buf,
+               unsigned long len, enum object_type *type, unsigned long *sizep)
+{
+       unsigned shift;
+       unsigned long size, c;
+       unsigned long used = 0;
+
+       c = buf[used++];
+       *type = (c >> 4) & 7;
+       size = c & 15;
+       shift = 4;
+       while (c & 0x80) {
+               if (len <= used || bitsizeof(long) <= shift) {
+                       error("bad object header");
+                       size = used = 0;
+                       break;
+               }
+               c = buf[used++];
+               size += (c & 0x7f) << shift;
+               shift += 7;
+       }
+       *sizep = size;
+       return used;
+}
diff --git a/sha1_file.c b/sha1_file.c
index bbce60f1c..1f4b4ba2c 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -913,31 +913,6 @@ void *map_sha1_file(const unsigned char *sha1, unsigned 
long *size)
        return map_sha1_file_1(NULL, sha1, size);
 }
 
-unsigned long unpack_object_header_buffer(const unsigned char *buf,
-               unsigned long len, enum object_type *type, unsigned long *sizep)
-{
-       unsigned shift;
-       unsigned long size, c;
-       unsigned long used = 0;
-
-       c = buf[used++];
-       *type = (c >> 4) & 7;
-       size = c & 15;
-       shift = 4;
-       while (c & 0x80) {
-               if (len <= used || bitsizeof(long) <= shift) {
-                       error("bad object header");
-                       size = used = 0;
-                       break;
-               }
-               c = buf[used++];
-               size += (c & 0x7f) << shift;
-               shift += 7;
-       }
-       *sizep = size;
-       return used;
-}
-
 static int unpack_sha1_short_header(git_zstream *stream,
                                    unsigned char *map, unsigned long mapsize,
                                    void *buffer, unsigned long bufsiz)
-- 
2.14.0.434.g98096fd7a8-goog