diff options
| -rw-r--r-- | Documentation/config.txt | 13 | ||||
| -rw-r--r-- | builtin-pack-objects.c | 69 | ||||
| -rw-r--r-- | cache.h | 2 | ||||
| -rw-r--r-- | config.c | 5 | ||||
| -rw-r--r-- | environment.c | 1 | ||||
| -rw-r--r-- | sha1_file.c | 47 |
6 files changed, 11 insertions, 126 deletions
diff --git a/Documentation/config.txt b/Documentation/config.txt index ea434af9d..d6d89ba46 100644 --- a/Documentation/config.txt +++ b/Documentation/config.txt @@ -209,19 +209,6 @@ core.compression:: compression, and 1..9 are various speed/size tradeoffs, 9 being slowest. -core.legacyheaders:: - A boolean which - changes the format of loose objects so that they are more - efficient to pack and to send out of the repository over git - native protocol, since v1.4.2. However, loose objects - written in the new format cannot be read by git older than - that version; people fetching from your repository using - older versions of git over dumb transports (e.g. http) - will also be affected. -+ -To let git use the new loose object format, you have to -set core.legacyheaders to false. - core.packedGitWindowSize:: Number of bytes of a pack file to map into memory in a single mapping operation. Larger window sizes may allow diff --git a/builtin-pack-objects.c b/builtin-pack-objects.c index d94c79a33..5fa98132f 100644 --- a/builtin-pack-objects.c +++ b/builtin-pack-objects.c @@ -346,56 +346,6 @@ static void copy_pack_data(struct sha1file *f, } } -static int check_loose_inflate(unsigned char *data, unsigned long len, unsigned long expect) -{ - z_stream stream; - unsigned char fakebuf[4096]; - int st; - - memset(&stream, 0, sizeof(stream)); - stream.next_in = data; - stream.avail_in = len; - stream.next_out = fakebuf; - stream.avail_out = sizeof(fakebuf); - inflateInit(&stream); - - while (1) { - st = inflate(&stream, Z_FINISH); - if (st == Z_STREAM_END || st == Z_OK) { - st = (stream.total_out == expect && - stream.total_in == len) ? 0 : -1; - break; - } - if (st != Z_BUF_ERROR) { - st = -1; - break; - } - stream.next_out = fakebuf; - stream.avail_out = sizeof(fakebuf); - } - inflateEnd(&stream); - return st; -} - -static int revalidate_loose_object(struct object_entry *entry, - unsigned char *map, - unsigned long mapsize) -{ - /* we already know this is a loose object with new type header. */ - enum object_type type; - unsigned long size, used; - - if (pack_to_stdout) - return 0; - - used = unpack_object_header_gently(map, mapsize, &type, &size); - if (!used) - return -1; - map += used; - mapsize -= used; - return check_loose_inflate(map, mapsize, size); -} - static unsigned long write_object(struct sha1file *f, struct object_entry *entry) { @@ -427,25 +377,6 @@ static unsigned long write_object(struct sha1file *f, * and we do not need to deltify it. */ - if (!no_reuse_object && !entry->in_pack && !entry->delta) { - unsigned char *map; - unsigned long mapsize; - map = map_sha1_file(entry->sha1, &mapsize); - if (map && !legacy_loose_object(map)) { - /* We can copy straight into the pack file */ - if (revalidate_loose_object(entry, map, mapsize)) - die("corrupt loose object %s", - sha1_to_hex(entry->sha1)); - sha1write(f, map, mapsize); - munmap(map, mapsize); - written++; - reused++; - return mapsize; - } - if (map) - munmap(map, mapsize); - } - if (!to_reuse) { buf = read_sha1_file(entry->sha1, &type, &size); if (!buf) @@ -273,7 +273,6 @@ extern void rollback_lock_file(struct lock_file *); extern int delete_ref(const char *, const unsigned char *sha1); /* Environment bits from configuration mechanism */ -extern int use_legacy_headers; extern int trust_executable_bit; extern int has_symlinks; extern int assume_unchanged; @@ -354,7 +353,6 @@ extern int move_temp_to_file(const char *tmpfile, const char *filename); extern int has_sha1_pack(const unsigned char *sha1, const char **ignore); extern int has_sha1_file(const unsigned char *sha1); extern void *map_sha1_file(const unsigned char *sha1, unsigned long *); -extern int legacy_loose_object(unsigned char *); extern int has_pack_file(const unsigned char *sha1); extern int has_pack_index(const unsigned char *sha1); @@ -299,11 +299,6 @@ int git_default_config(const char *var, const char *value) return 0; } - if (!strcmp(var, "core.legacyheaders")) { - use_legacy_headers = git_config_bool(var, value); - return 0; - } - if (!strcmp(var, "core.compression")) { int level = git_config_int(var, value); if (level == -1) diff --git a/environment.c b/environment.c index 22316597d..54e3abae9 100644 --- a/environment.c +++ b/environment.c @@ -11,7 +11,6 @@ char git_default_email[MAX_GITNAME]; char git_default_name[MAX_GITNAME]; -int use_legacy_headers = 1; int trust_executable_bit = 1; int has_symlinks = 1; int assume_unchanged; diff --git a/sha1_file.c b/sha1_file.c index 32244d704..e71552795 100644 --- a/sha1_file.c +++ b/sha1_file.c @@ -972,7 +972,7 @@ void *map_sha1_file(const unsigned char *sha1, unsigned long *size) return map; } -int legacy_loose_object(unsigned char *map) +static int legacy_loose_object(unsigned char *map) { unsigned int word; @@ -1034,6 +1034,14 @@ static int unpack_sha1_header(z_stream *stream, unsigned char *map, unsigned lon return inflate(stream, 0); } + + /* + * There used to be a second loose object header format which + * was meant to mimic the in-pack format, allowing for direct + * copy of the object data. This format turned up not to be + * really worth it and we don't write it any longer. But we + * can still read it. + */ used = unpack_object_header_gently(map, mapsize, &type, &size); if (!used || !valid_loose_object_type[type]) return -1; @@ -1962,40 +1970,6 @@ static int write_buffer(int fd, const void *buf, size_t len) return 0; } -static int write_binary_header(unsigned char *hdr, enum object_type type, unsigned long len) -{ - int hdr_len; - unsigned char c; - - c = (type << 4) | (len & 15); - len >>= 4; - hdr_len = 1; - while (len) { - *hdr++ = c | 0x80; - hdr_len++; - c = (len & 0x7f); - len >>= 7; - } - *hdr = c; - return hdr_len; -} - -static void setup_object_header(z_stream *stream, const char *type, unsigned long len) -{ - int obj_type, hdrlen; - - if (use_legacy_headers) { - while (deflate(stream, 0) == Z_OK) - /* nothing */; - return; - } - obj_type = type_from_string(type); - hdrlen = write_binary_header(stream->next_out, obj_type, len); - stream->total_out = hdrlen; - stream->next_out += hdrlen; - stream->avail_out -= hdrlen; -} - int hash_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *sha1) { @@ -2062,7 +2036,8 @@ int write_sha1_file(void *buf, unsigned long len, const char *type, unsigned cha /* First header.. */ stream.next_in = (unsigned char *)hdr; stream.avail_in = hdrlen; - setup_object_header(&stream, type, len); + while (deflate(&stream, 0) == Z_OK) + /* nothing */; /* Then the data itself.. */ stream.next_in = buf; |