diff options
| -rw-r--r-- | builtin-pack-objects.c | 31 | ||||
| -rw-r--r-- | fast-import.c | 29 | ||||
| -rw-r--r-- | pack-write.c | 27 | ||||
| -rw-r--r-- | pack.h | 1 |
4 files changed, 33 insertions, 55 deletions
diff --git a/builtin-pack-objects.c b/builtin-pack-objects.c index e1d3adf405..6b2f65c6db 100644 --- a/builtin-pack-objects.c +++ b/builtin-pack-objects.c @@ -155,33 +155,6 @@ static unsigned long do_compress(void **pptr, unsigned long size) } /* - * The per-object header is a pretty dense thing, which is - * - first byte: low four bits are "size", then three bits of "type", - * and the high bit is "size continues". - * - each byte afterwards: low seven bits are size continuation, - * with the high bit being "size continues" - */ -static int encode_header(enum object_type type, unsigned long size, unsigned char *hdr) -{ - int n = 1; - unsigned char c; - - if (type < OBJ_COMMIT || type > OBJ_REF_DELTA) - die("bad type %d", type); - - c = (type << 4) | (size & 15); - size >>= 4; - while (size) { - *hdr++ = c | 0x80; - c = size & 0x7f; - size >>= 7; - n++; - } - *hdr = c; - return n; -} - -/* * we are going to reuse the existing object data as is. make * sure it is not corrupt. */ @@ -321,7 +294,7 @@ static unsigned long write_object(struct sha1file *f, * The object header is a byte of 'type' followed by zero or * more bytes of length. */ - hdrlen = encode_header(type, size, header); + hdrlen = encode_in_pack_object_header(type, size, header); if (type == OBJ_OFS_DELTA) { /* @@ -372,7 +345,7 @@ static unsigned long write_object(struct sha1file *f, if (entry->delta) type = (allow_ofs_delta && entry->delta->idx.offset) ? OBJ_OFS_DELTA : OBJ_REF_DELTA; - hdrlen = encode_header(type, entry->size, header); + hdrlen = encode_in_pack_object_header(type, entry->size, header); offset = entry->in_pack_offset; revidx = find_pack_revindex(p, offset); diff --git a/fast-import.c b/fast-import.c index 74f08bd554..309f2c58a2 100644 --- a/fast-import.c +++ b/fast-import.c @@ -980,29 +980,6 @@ static void cycle_packfile(void) start_packfile(); } -static size_t encode_header( - enum object_type type, - uintmax_t size, - unsigned char *hdr) -{ - int n = 1; - unsigned char c; - - if (type < OBJ_COMMIT || type > OBJ_REF_DELTA) - die("bad type %d", type); - - c = (type << 4) | (size & 15); - size >>= 4; - while (size) { - *hdr++ = c | 0x80; - c = size & 0x7f; - size >>= 7; - n++; - } - *hdr = c; - return n; -} - static int store_object( enum object_type type, struct strbuf *dat, @@ -1103,7 +1080,7 @@ static int store_object( delta_count_by_type[type]++; e->depth = last->depth + 1; - hdrlen = encode_header(OBJ_OFS_DELTA, deltalen, hdr); + hdrlen = encode_in_pack_object_header(OBJ_OFS_DELTA, deltalen, hdr); sha1write(pack_file, hdr, hdrlen); pack_size += hdrlen; @@ -1114,7 +1091,7 @@ static int store_object( pack_size += sizeof(hdr) - pos; } else { e->depth = 0; - hdrlen = encode_header(type, dat->len, hdr); + hdrlen = encode_in_pack_object_header(type, dat->len, hdr); sha1write(pack_file, hdr, hdrlen); pack_size += hdrlen; } @@ -1188,7 +1165,7 @@ static void stream_blob(uintmax_t len, unsigned char *sha1out, uintmax_t mark) memset(&s, 0, sizeof(s)); deflateInit(&s, pack_compression_level); - hdrlen = encode_header(OBJ_BLOB, len, out_buf); + hdrlen = encode_in_pack_object_header(OBJ_BLOB, len, out_buf); if (out_sz <= hdrlen) die("impossibly large object header"); diff --git a/pack-write.c b/pack-write.c index 9f47cf9961..a905ca4486 100644 --- a/pack-write.c +++ b/pack-write.c @@ -253,3 +253,30 @@ char *index_pack_lockfile(int ip_out) } return NULL; } + +/* + * The per-object header is a pretty dense thing, which is + * - first byte: low four bits are "size", then three bits of "type", + * and the high bit is "size continues". + * - each byte afterwards: low seven bits are size continuation, + * with the high bit being "size continues" + */ +int encode_in_pack_object_header(enum object_type type, uintmax_t size, unsigned char *hdr) +{ + int n = 1; + unsigned char c; + + if (type < OBJ_COMMIT || type > OBJ_REF_DELTA) + die("bad type %d", type); + + c = (type << 4) | (size & 15); + size >>= 4; + while (size) { + *hdr++ = c | 0x80; + c = size & 0x7f; + size >>= 7; + n++; + } + *hdr = c; + return n; +} @@ -60,6 +60,7 @@ extern int check_pack_crc(struct packed_git *p, struct pack_window **w_curs, off extern int verify_pack(struct packed_git *); 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 *); #define PH_ERROR_EOF (-1) #define PH_ERROR_PACK_SIGNATURE (-2) |