Signed-off-by: Jonathan Tan <jonathantanmy@xxxxxxxxxx>
---
cache.h | 1 -
pack.h | 1 +
packfile.c | 40 ++++++++++++++++++++++++++++++++++++++++
sha1_file.c | 39 ---------------------------------------
4 files changed, 41 insertions(+), 40 deletions(-)
diff --git a/cache.h b/cache.h
index 9c70759a6..e29918c75 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 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 4a7f88a38..69c92d8d2 100644
--- a/pack.h
+++ b/pack.h
@@ -168,5 +168,6 @@ 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);
+extern unsigned long get_size_from_delta(struct packed_git *, struct pack_window **, off_t);
#endif
diff --git a/packfile.c b/packfile.c
index 6e4f1c6e3..511afad85 100644
--- a/packfile.c
+++ b/packfile.c
@@ -3,6 +3,7 @@
#include "pack.h"
#include "dir.h"
#include "mergesort.h"
+#include "delta.h"
char *odb_pack_name(struct strbuf *buf,
const unsigned char *sha1,
@@ -908,3 +909,42 @@ unsigned long unpack_object_header_buffer(const unsigned char *buf,
*sizep = size;
return used;
}
+
+unsigned long get_size_from_delta(struct packed_git *p,
+ struct pack_window **w_curs,
+ off_t curpos)
+{
+ const unsigned char *data;
+ unsigned char delta_head[20], *in;
+ git_zstream stream;
+ int st;
+
+ memset(&stream, 0, sizeof(stream));
+ stream.next_out = delta_head;
+ stream.avail_out = sizeof(delta_head);
+
+ git_inflate_init(&stream);
+ do {
+ in = use_pack(p, w_curs, curpos, &stream.avail_in);
+ stream.next_in = in;
+ st = git_inflate(&stream, Z_FINISH);
+ curpos += stream.next_in - in;
+ } while ((st == Z_OK || st == Z_BUF_ERROR) &&
+ stream.total_out < sizeof(delta_head));
+ git_inflate_end(&stream);
+ if ((st != Z_STREAM_END) && stream.total_out != sizeof(delta_head)) {
+ error("delta data unpack-initial failed");
+ return 0;
+ }
+
+ /* Examine the initial part of the delta to figure out
+ * the result size.
+ */
+ data = delta_head;
+
+ /* ignore base size */
+ get_delta_hdr_size(&data, delta_head+sizeof(delta_head));
+
+ /* Read the result size */
+ return get_delta_hdr_size(&data, delta_head+sizeof(delta_head));
+}
diff --git a/sha1_file.c b/sha1_file.c
index 1f4b4ba2c..7d354d9b6 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -1099,45 +1099,6 @@ int parse_sha1_header(const char *hdr, unsigned long *sizep)
return parse_sha1_header_extended(hdr, &oi, 0);
}
-unsigned long get_size_from_delta(struct packed_git *p,
- struct pack_window **w_curs,
- off_t curpos)
-{
- const unsigned char *data;
- unsigned char delta_head[20], *in;
- git_zstream stream;
- int st;
-
- memset(&stream, 0, sizeof(stream));
- stream.next_out = delta_head;
- stream.avail_out = sizeof(delta_head);
-
- git_inflate_init(&stream);
- do {
- in = use_pack(p, w_curs, curpos, &stream.avail_in);
- stream.next_in = in;
- st = git_inflate(&stream, Z_FINISH);
- curpos += stream.next_in - in;
- } while ((st == Z_OK || st == Z_BUF_ERROR) &&
- stream.total_out < sizeof(delta_head));
- git_inflate_end(&stream);
- if ((st != Z_STREAM_END) && stream.total_out != sizeof(delta_head)) {
- error("delta data unpack-initial failed");
- return 0;
- }
-
- /* Examine the initial part of the delta to figure out
- * the result size.
- */
- data = delta_head;
-
- /* ignore base size */
- get_delta_hdr_size(&data, delta_head+sizeof(delta_head));
-
- /* Read the result size */
- return get_delta_hdr_size(&data, delta_head+sizeof(delta_head));
-}
-
static off_t get_delta_base(struct packed_git *p,
struct pack_window **w_curs,
off_t *curpos,
--
2.14.0.434.g98096fd7a8-goog
