Signed-off-by: Nguyễn Thái Ngọc Duy <pclo...@gmail.com>
---
pack-write.c | 33 +++++++++++++++++++++++++++++++++
pack.h | 1 +
2 files changed, 34 insertions(+)
diff --git a/pack-write.c b/pack-write.c
index 36b88a3..c1e9da4 100644
--- a/pack-write.c
+++ b/pack-write.c
@@ -1,6 +1,7 @@
#include "cache.h"
#include "pack.h"
#include "csum-file.h"
+#include "varint.h"
void reset_pack_idx_option(struct pack_idx_option *opts)
{
@@ -349,6 +350,38 @@ int encode_in_pack_object_header(enum object_type type,
uintmax_t size, unsigned
return n;
}
+int pv4_encode_object_header(enum object_type type,
+ uintmax_t size, unsigned char *hdr)
+{
+ uintmax_t val;
+
+ switch (type) {
+ case OBJ_COMMIT:
+ case OBJ_TREE:
+ case OBJ_BLOB:
+ case OBJ_TAG:
+ case OBJ_REF_DELTA:
+ case OBJ_PV4_COMMIT:
+ case OBJ_PV4_TREE:
+ break;
+ default:
+ die("bad type %d", type);
+ }
+
+ /*
+ * We allocate 4 bits in the LSB for the object type which
+ * should be good for quite a while, given that we effectively
+ * encodes only 5 object types: commit, tree, blob, delta,
+ * tag.
+ */
+ val = size;
+ if (MSB(val, 4))
+ die("fixme: the code doesn't currently cope with big sizes");
+ val <<= 4;
+ val |= type;
+ return encode_varint(val, hdr);
+}
+
struct sha1file *create_tmp_packfile(char **pack_tmp_name)
{
char tmpname[PATH_MAX];
diff --git a/pack.h b/pack.h
index 855f6c6..4f10fa4 100644
--- a/pack.h
+++ b/pack.h
@@ -83,6 +83,7 @@ extern off_t write_pack_header(struct sha1file *f, int,
uint32_t);
extern void fixup_pack_header_footer(int, unsigned char *, const char *,
uint32_t, unsigned char *, off_t);
extern char *index_pack_lockfile(int fd);
extern int encode_in_pack_object_header(enum object_type, uintmax_t, unsigned
char *);
+extern int pv4_encode_object_header(enum object_type, uintmax_t, unsigned char
*);
#define PH_ERROR_EOF (-1)
#define PH_ERROR_PACK_SIGNATURE (-2)
--
1.8.2.83.gc99314b
--
To unsubscribe from this list: send the line "unsubscribe git" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
