diff options
Diffstat (limited to 'sha1_file.c')
| -rw-r--r-- | sha1_file.c | 347 |
1 files changed, 217 insertions, 130 deletions
diff --git a/sha1_file.c b/sha1_file.c index b0735dc03d..cc0f43ea84 100644 --- a/sha1_file.c +++ b/sha1_file.c @@ -24,7 +24,6 @@ #include "bulk-checkin.h" #include "streaming.h" #include "dir.h" -#include "mru.h" #include "list.h" #include "mergesort.h" #include "quote.h" @@ -40,6 +39,62 @@ const struct object_id empty_blob_oid = { EMPTY_BLOB_SHA1_BIN_LITERAL }; +static void git_hash_sha1_init(git_hash_ctx *ctx) +{ + git_SHA1_Init(&ctx->sha1); +} + +static void git_hash_sha1_update(git_hash_ctx *ctx, const void *data, size_t len) +{ + git_SHA1_Update(&ctx->sha1, data, len); +} + +static void git_hash_sha1_final(unsigned char *hash, git_hash_ctx *ctx) +{ + git_SHA1_Final(hash, &ctx->sha1); +} + +static void git_hash_unknown_init(git_hash_ctx *ctx) +{ + die("trying to init unknown hash"); +} + +static void git_hash_unknown_update(git_hash_ctx *ctx, const void *data, size_t len) +{ + die("trying to update unknown hash"); +} + +static void git_hash_unknown_final(unsigned char *hash, git_hash_ctx *ctx) +{ + die("trying to finalize unknown hash"); +} + +const struct git_hash_algo hash_algos[GIT_HASH_NALGOS] = { + { + NULL, + 0x00000000, + 0, + 0, + git_hash_unknown_init, + git_hash_unknown_update, + git_hash_unknown_final, + NULL, + NULL, + }, + { + "sha-1", + /* "sha1", big-endian */ + 0x73686131, + GIT_SHA1_RAWSZ, + GIT_SHA1_HEXSZ, + git_hash_sha1_init, + git_hash_sha1_update, + git_hash_sha1_final, + &empty_tree_oid, + &empty_blob_oid, + }, +}; + /* * This is meant to hold a *small* number of objects that you would * want read_sha1_file() to be able to return, but yet you do not want @@ -75,6 +130,18 @@ static struct cached_object *find_cached_object(const unsigned char *sha1) return NULL; } + +static int get_conv_flags(unsigned flags) +{ + if (flags & HASH_RENORMALIZE) + return CONV_EOL_RENORMALIZE; + else if (flags & HASH_WRITE_OBJECT) + return global_conv_flags_eol; + else + return 0; +} + + int mkdir_in_gitdir(const char *path) { if (mkdir(path, 0777)) { @@ -252,15 +319,11 @@ static void fill_sha1_path(struct strbuf *buf, const unsigned char *sha1) } } -const char *sha1_file_name(const unsigned char *sha1) +void sha1_file_name(struct strbuf *buf, const unsigned char *sha1) { - static struct strbuf buf = STRBUF_INIT; - - strbuf_reset(&buf); - strbuf_addf(&buf, "%s/", get_object_directory()); - - fill_sha1_path(&buf, sha1); - return buf.buf; + strbuf_addstr(buf, get_object_directory()); + strbuf_addch(buf, '/'); + fill_sha1_path(buf, sha1); } struct strbuf *alt_scratch_buf(struct alternate_object_database *alt) @@ -405,6 +468,9 @@ static void link_alt_odb_entries(const char *alt, int sep, struct strbuf objdirbuf = STRBUF_INIT; struct strbuf entry = STRBUF_INIT; + if (!alt || !*alt) + return; + if (depth > 5) { error("%s: ignoring alternate object stores, nesting too deep.", relative_base); @@ -457,19 +523,19 @@ struct alternate_object_database *alloc_alt_odb(const char *dir) void add_to_alternates_file(const char *reference) { - struct lock_file *lock = xcalloc(1, sizeof(struct lock_file)); + struct lock_file lock = LOCK_INIT; char *alts = git_pathdup("objects/info/alternates"); FILE *in, *out; + int found = 0; - hold_lock_file_for_update(lock, alts, LOCK_DIE_ON_ERROR); - out = fdopen_lock_file(lock, "w"); + hold_lock_file_for_update(&lock, alts, LOCK_DIE_ON_ERROR); + out = fdopen_lock_file(&lock, "w"); if (!out) die_errno("unable to fdopen alternates lockfile"); in = fopen(alts, "r"); if (in) { struct strbuf line = STRBUF_INIT; - int found = 0; while (strbuf_getline(&line, in) != EOF) { if (!strcmp(reference, line.buf)) { @@ -481,18 +547,15 @@ void add_to_alternates_file(const char *reference) strbuf_release(&line); fclose(in); - - if (found) { - rollback_lock_file(lock); - lock = NULL; - } } else if (errno != ENOENT) die_errno("unable to read alternates file"); - if (lock) { + if (found) { + rollback_lock_file(&lock); + } else { fprintf_or_die(out, "%s\n", reference); - if (commit_lock_file(lock)) + if (commit_lock_file(&lock)) die_errno("unable to move new alternates file into place"); if (alt_odb_tail) link_alt_odb_entries(reference, '\n', NULL, 0); @@ -608,7 +671,6 @@ void prepare_alt_odb(void) return; alt = getenv(ALTERNATE_DB_ENVIRONMENT); - if (!alt) alt = ""; alt_odb_tail = &alt_odb_list; link_alt_odb_entries(alt, PATH_SEP, NULL, 0); @@ -642,7 +704,12 @@ int check_and_freshen_file(const char *fn, int freshen) static int check_and_freshen_local(const unsigned char *sha1, int freshen) { - return check_and_freshen_file(sha1_file_name(sha1), freshen); + static struct strbuf buf = STRBUF_INIT; + + strbuf_reset(&buf); + sha1_file_name(&buf, sha1); + + return check_and_freshen_file(buf.buf, freshen); } static int check_and_freshen_nonlocal(const unsigned char *sha1, int freshen) @@ -720,16 +787,16 @@ void *xmmap(void *start, size_t length, int check_sha1_signature(const unsigned char *sha1, void *map, unsigned long size, const char *type) { - unsigned char real_sha1[20]; + struct object_id real_oid; enum object_type obj_type; struct git_istream *st; - git_SHA_CTX c; + git_hash_ctx c; char hdr[32]; int hdrlen; if (map) { - hash_sha1_file(map, size, type, real_sha1); - return hashcmp(sha1, real_sha1) ? -1 : 0; + hash_object_file(map, size, type, &real_oid); + return hashcmp(sha1, real_oid.hash) ? -1 : 0; } st = open_istream(sha1, &obj_type, &size, NULL); @@ -737,11 +804,11 @@ int check_sha1_signature(const unsigned char *sha1, void *map, return -1; /* Generate the header */ - hdrlen = xsnprintf(hdr, sizeof(hdr), "%s %lu", typename(obj_type), size) + 1; + hdrlen = xsnprintf(hdr, sizeof(hdr), "%s %lu", type_name(obj_type), size) + 1; /* Sha1.. */ - git_SHA1_Init(&c); - git_SHA1_Update(&c, hdr, hdrlen); + the_hash_algo->init_fn(&c); + the_hash_algo->update_fn(&c, hdr, hdrlen); for (;;) { char buf[1024 * 16]; ssize_t readlen = read_istream(st, buf, sizeof(buf)); @@ -752,11 +819,11 @@ int check_sha1_signature(const unsigned char *sha1, void *map, } if (!readlen) break; - git_SHA1_Update(&c, buf, readlen); + the_hash_algo->update_fn(&c, buf, readlen); } - git_SHA1_Final(real_sha1, &c); + the_hash_algo->final_fn(real_oid.hash, &c); close_istream(st); - return hashcmp(sha1, real_sha1) ? -1 : 0; + return hashcmp(sha1, real_oid.hash) ? -1 : 0; } int git_open_cloexec(const char *name, int flags) @@ -798,8 +865,12 @@ static int stat_sha1_file(const unsigned char *sha1, struct stat *st, const char **path) { struct alternate_object_database *alt; + static struct strbuf buf = STRBUF_INIT; + + strbuf_reset(&buf); + sha1_file_name(&buf, sha1); + *path = buf.buf; - *path = sha1_file_name(sha1); if (!lstat(*path, st)) return 0; @@ -823,8 +894,12 @@ static int open_sha1_file(const unsigned char *sha1, const char **path) int fd; struct alternate_object_database *alt; int most_interesting_errno; + static struct strbuf buf = STRBUF_INIT; + + strbuf_reset(&buf); + sha1_file_name(&buf, sha1); + *path = buf.buf; - *path = sha1_file_name(sha1); fd = git_open(*path); if (fd >= 0) return fd; @@ -1019,8 +1094,8 @@ static int parse_sha1_header_extended(const char *hdr, struct object_info *oi, } type = type_from_string_gently(type_buf, type_len, 1); - if (oi->typename) - strbuf_add(oi->typename, type_buf, type_len); + if (oi->type_name) + strbuf_add(oi->type_name, type_buf, type_len); /* * Set type to 0 if its an unknown object and * we're obtaining the type using '--allow-unknown-type' @@ -1090,7 +1165,7 @@ static int sha1_loose_object_info(const unsigned char *sha1, * return value implicitly indicates whether the * object even exists. */ - if (!oi->typep && !oi->typename && !oi->sizep && !oi->contentp) { + if (!oi->typep && !oi->type_name && !oi->sizep && !oi->contentp) { const char *path; struct stat st; if (stat_sha1_file(sha1, &st, &path) < 0) @@ -1157,6 +1232,9 @@ int sha1_object_info_extended(const unsigned char *sha1, struct object_info *oi, sha1; int already_retried = 0; + if (is_null_sha1(real)) + return -1; + if (!oi) oi = &blank_oi; @@ -1171,8 +1249,8 @@ int sha1_object_info_extended(const unsigned char *sha1, struct object_info *oi, *(oi->disk_sizep) = 0; if (oi->delta_base_sha1) hashclr(oi->delta_base_sha1); - if (oi->typename) - strbuf_addstr(oi->typename, typename(co->type)); + if (oi->type_name) + strbuf_addstr(oi->type_name, type_name(co->type)); if (oi->contentp) *oi->contentp = xmemdupz(co->buf, co->size); oi->whence = OI_CACHED; @@ -1258,13 +1336,13 @@ static void *read_object(const unsigned char *sha1, enum object_type *type, return content; } -int pretend_sha1_file(void *buf, unsigned long len, enum object_type type, - unsigned char *sha1) +int pretend_object_file(void *buf, unsigned long len, enum object_type type, + struct object_id *oid) { struct cached_object *co; - hash_sha1_file(buf, len, typename(type), sha1); - if (has_sha1_file(sha1) || find_cached_object(sha1)) + hash_object_file(buf, len, type_name(type), oid); + if (has_sha1_file(oid->hash) || find_cached_object(oid->hash)) return 0; ALLOC_GROW(cached_objects, cached_object_nr + 1, cached_object_alloc); co = &cached_objects[cached_object_nr++]; @@ -1272,7 +1350,7 @@ int pretend_sha1_file(void *buf, unsigned long len, enum object_type type, co->type = type; co->buf = xmalloc(len); memcpy(co->buf, buf, len); - hashcpy(co->sha1, sha1); + hashcpy(co->sha1, oid->hash); return 0; } @@ -1365,20 +1443,20 @@ void *read_object_with_reference(const unsigned char *sha1, } } -static void write_sha1_file_prepare(const void *buf, unsigned long len, - const char *type, unsigned char *sha1, - char *hdr, int *hdrlen) +static void write_object_file_prepare(const void *buf, unsigned long len, + const char *type, struct object_id *oid, + char *hdr, int *hdrlen) { - git_SHA_CTX c; + git_hash_ctx c; /* Generate the header */ *hdrlen = xsnprintf(hdr, *hdrlen, "%s %lu", type, len)+1; /* Sha1.. */ - git_SHA1_Init(&c); - git_SHA1_Update(&c, hdr, *hdrlen); - git_SHA1_Update(&c, buf, len); - git_SHA1_Final(sha1, &c); + the_hash_algo->init_fn(&c); + the_hash_algo->update_fn(&c, hdr, *hdrlen); + the_hash_algo->update_fn(&c, buf, len); + the_hash_algo->final_fn(oid->hash, &c); } /* @@ -1431,12 +1509,12 @@ static int write_buffer(int fd, const void *buf, size_t len) return 0; } -int hash_sha1_file(const void *buf, unsigned long len, const char *type, - unsigned char *sha1) +int hash_object_file(const void *buf, unsigned long len, const char *type, + struct object_id *oid) { char hdr[32]; int hdrlen = sizeof(hdr); - write_sha1_file_prepare(buf, len, type, sha1, hdr, &hdrlen); + write_object_file_prepare(buf, len, type, oid, hdr, &hdrlen); return 0; } @@ -1494,18 +1572,22 @@ static int create_tmpfile(struct strbuf *tmp, const char *filename) return fd; } -static int write_loose_object(const unsigned char *sha1, char *hdr, int hdrlen, - const void *buf, unsigned long len, time_t mtime) +static int write_loose_object(const struct object_id *oid, char *hdr, + int hdrlen, const void *buf, unsigned long len, + time_t mtime) { int fd, ret; unsigned char compressed[4096]; git_zstream stream; - git_SHA_CTX c; - unsigned char parano_sha1[20]; + git_hash_ctx c; + struct object_id parano_oid; static struct strbuf tmp_file = STRBUF_INIT; - const char *filename = sha1_file_name(sha1); + static struct strbuf filename = STRBUF_INIT; + + strbuf_reset(&filename); + sha1_file_name(&filename, oid->hash); - fd = create_tmpfile(&tmp_file, filename); + fd = create_tmpfile(&tmp_file, filename.buf); if (fd < 0) { if (errno == EACCES) return error("insufficient permission for adding an object to repository database %s", get_object_directory()); @@ -1517,14 +1599,14 @@ static int write_loose_object(const unsigned char *sha1, char *hdr, int hdrlen, git_deflate_init(&stream, zlib_compression_level); stream.next_out = compressed; stream.avail_out = sizeof(compressed); - git_SHA1_Init(&c); + the_hash_algo->init_fn(&c); /* First header.. */ stream.next_in = (unsigned char *)hdr; stream.avail_in = hdrlen; while (git_deflate(&stream, 0) == Z_OK) ; /* nothing */ - git_SHA1_Update(&c, hdr, hdrlen); + the_hash_algo->update_fn(&c, hdr, hdrlen); /* Then the data itself.. */ stream.next_in = (void *)buf; @@ -1532,7 +1614,7 @@ static int write_loose_object(const unsigned char *sha1, char *hdr, int hdrlen, do { unsigned char *in0 = stream.next_in; ret = git_deflate(&stream, Z_FINISH); - git_SHA1_Update(&c, in0, stream.next_in - in0); + the_hash_algo->update_fn(&c, in0, stream.next_in - in0); if (write_buffer(fd, compressed, stream.next_out - compressed) < 0) die("unable to write sha1 file"); stream.next_out = compressed; @@ -1540,13 +1622,16 @@ static int write_loose_object(const unsigned char *sha1, char *hdr, int hdrlen, } while (ret == Z_OK); if (ret != Z_STREAM_END) - die("unable to deflate new object %s (%d)", sha1_to_hex(sha1), ret); + die("unable to deflate new object %s (%d)", oid_to_hex(oid), + ret); ret = git_deflate_end_gently(&stream); if (ret != Z_OK) - die("deflateEnd on object %s failed (%d)", sha1_to_hex(sha1), ret); - git_SHA1_Final(parano_sha1, &c); - if (hashcmp(sha1, parano_sha1) != 0) - die("confused by unstable object source data for %s", sha1_to_hex(sha1)); + die("deflateEnd on object %s failed (%d)", oid_to_hex(oid), + ret); + the_hash_algo->final_fn(parano_oid.hash, &c); + if (oidcmp(oid, ¶no_oid) != 0) + die("confused by unstable object source data for %s", + oid_to_hex(oid)); close_sha1_file(fd); @@ -1558,7 +1643,7 @@ static int write_loose_object(const unsigned char *sha1, char *hdr, int hdrlen, warning_errno("failed utime() on %s", tmp_file.buf); } - return finalize_object_file(tmp_file.buf, filename); + return finalize_object_file(tmp_file.buf, filename.buf); } static int freshen_loose_object(const unsigned char *sha1) @@ -1579,7 +1664,8 @@ static int freshen_packed_object(const unsigned char *sha1) return 1; } -int write_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *sha1) +int write_object_file(const void *buf, unsigned long len, const char *type, + struct object_id *oid) { char hdr[32]; int hdrlen = sizeof(hdr); @@ -1587,14 +1673,15 @@ int write_sha1_file(const void *buf, unsigned long len, const char *type, unsign /* Normally if we have it in the pack then we do not bother writing * it out into .git/objects/??/?{38} file. */ - write_sha1_file_prepare(buf, len, type, sha1, hdr, &hdrlen); - if (freshen_packed_object(sha1) || freshen_loose_object(sha1)) + write_object_file_prepare(buf, len, type, oid, hdr, &hdrlen); + if (freshen_packed_object(oid->hash) || freshen_loose_object(oid->hash)) return 0; - return write_loose_object(sha1, hdr, hdrlen, buf, len, 0); + return write_loose_object(oid, hdr, hdrlen, buf, len, 0); } -int hash_sha1_file_literally(const void *buf, unsigned long len, const char *type, - struct object_id *oid, unsigned flags) +int hash_object_file_literally(const void *buf, unsigned long len, + const char *type, struct object_id *oid, + unsigned flags) { char *header; int hdrlen, status = 0; @@ -1602,20 +1689,20 @@ int hash_sha1_file_literally(const void *buf, unsigned long len, const char *typ /* type string, SP, %lu of the length plus NUL must fit this */ hdrlen = strlen(type) + 32; header = xmalloc(hdrlen); - write_sha1_file_prepare(buf, len, type, oid->hash, header, &hdrlen); + write_object_file_prepare(buf, len, type, oid, header, &hdrlen); if (!(flags & HASH_WRITE_OBJECT)) goto cleanup; if (freshen_packed_object(oid->hash) || freshen_loose_object(oid->hash)) goto cleanup; - status = write_loose_object(oid->hash, header, hdrlen, buf, len, 0); + status = write_loose_object(oid, header, hdrlen, buf, len, 0); cleanup: free(header); return status; } -int force_object_loose(const unsigned char *sha1, time_t mtime) +int force_object_loose(const struct object_id *oid, time_t mtime) { void *buf; unsigned long len; @@ -1624,13 +1711,13 @@ int force_object_loose(const unsigned char *sha1, time_t mtime) int hdrlen; int ret; - if (has_loose_object(sha1)) + if (has_loose_object(oid->hash)) return 0; - buf = read_object(sha1, &type, &len); + buf = read_object(oid->hash, &type, &len); if (!buf) - return error("cannot read sha1_file for %s", sha1_to_hex(sha1)); - hdrlen = xsnprintf(hdr, sizeof(hdr), "%s %lu", typename(type), len) + 1; - ret = write_loose_object(sha1, hdr, hdrlen, buf, len, mtime); + return error("cannot read sha1_file for %s", oid_to_hex(oid)); + hdrlen = xsnprintf(hdr, sizeof(hdr), "%s %lu", type_name(type), len) + 1; + ret = write_loose_object(oid, hdr, hdrlen, buf, len, mtime); free(buf); return ret; @@ -1682,7 +1769,7 @@ static void check_tag(const void *buf, size_t size) die("corrupt tag"); } -static int index_mem(unsigned char *sha1, void *buf, size_t size, +static int index_mem(struct object_id *oid, void *buf, size_t size, enum object_type type, const char *path, unsigned flags) { @@ -1698,7 +1785,7 @@ static int index_mem(unsigned char *sha1, void *buf, size_t size, if ((type == OBJ_BLOB) && path) { struct strbuf nbuf = STRBUF_INIT; if (convert_to_git(&the_index, path, buf, size, &nbuf, - write_object ? safe_crlf : SAFE_CRLF_FALSE)) { + get_conv_flags(flags))) { buf = strbuf_detach(&nbuf, &size); re_allocated = 1; } @@ -1713,15 +1800,15 @@ static int index_mem(unsigned char *sha1, void *buf, size_t size, } if (write_object) - ret = write_sha1_file(buf, size, typename(type), sha1); + ret = write_object_file(buf, size, type_name(type), oid); else - ret = hash_sha1_file(buf, size, typename(type), sha1); + ret = hash_object_file(buf, size, type_name(type), oid); if (re_allocated) free(buf); return ret; } -static int index_stream_convert_blob(unsigned char *sha1, int fd, +static int index_stream_convert_blob(struct object_id *oid, int fd, const char *path, unsigned flags) { int ret; @@ -1732,26 +1819,26 @@ static int index_stream_convert_blob(unsigned char *sha1, int fd, assert(would_convert_to_git_filter_fd(path)); convert_to_git_filter_fd(&the_index, path, fd, &sbuf, - write_object ? safe_crlf : SAFE_CRLF_FALSE); + get_conv_flags(flags)); if (write_object) - ret = write_sha1_file(sbuf.buf, sbuf.len, typename(OBJ_BLOB), - sha1); + ret = write_object_file(sbuf.buf, sbuf.len, type_name(OBJ_BLOB), + oid); else - ret = hash_sha1_file(sbuf.buf, sbuf.len, typename(OBJ_BLOB), - sha1); + ret = hash_object_file(sbuf.buf, sbuf.len, type_name(OBJ_BLOB), + oid); strbuf_release(&sbuf); return ret; } -static int index_pipe(unsigned char *sha1, int fd, enum object_type type, +static int index_pipe(struct object_id *oid, int fd, enum object_type type, const char *path, unsigned flags) { struct strbuf sbuf = STRBUF_INIT; int ret; if (strbuf_read(&sbuf, fd, 4096) >= 0) - ret = index_mem(sha1, sbuf.buf, sbuf.len, type, path, flags); + ret = index_mem(oid, sbuf.buf, sbuf.len, type, path, flags); else ret = -1; strbuf_release(&sbuf); @@ -1760,14 +1847,14 @@ static int index_pipe(unsigned char *sha1, int fd, enum object_type type, #define SMALL_FILE_SIZE (32*1024) -static int index_core(unsigned char *sha1, int fd, size_t size, +static int index_core(struct object_id *oid, int fd, size_t size, enum object_type type, const char *path, unsigned flags) { int ret; if (!size) { - ret = index_mem(sha1, "", size, type, path, flags); + ret = index_mem(oid, "", size, type, path, flags); } else if (size <= SMALL_FILE_SIZE) { char *buf = xmalloc(size); ssize_t read_result = read_in_full(fd, buf, size); @@ -1778,11 +1865,11 @@ static int index_core(unsigned char *sha1, int fd, size_t size, ret = error("short read while indexing %s", path ? path : "<unknown>"); else - ret = index_mem(sha1, buf, size, type, path, flags); + ret = index_mem(oid, buf, size, type, path, flags); free(buf); } else { void *buf = xmmap(NULL, size, PROT_READ, MAP_PRIVATE, fd, 0); - ret = index_mem(sha1, buf, size, type, path, flags); + ret = index_mem(oid, buf, size, type, path, flags); munmap(buf, size); } return ret; @@ -1820,12 +1907,12 @@ int index_fd(struct object_id *oid, int fd, struct stat *st, * die() for large files. */ if (type == OBJ_BLOB && path && would_convert_to_git_filter_fd(path)) - ret = index_stream_convert_blob(oid->hash, fd, path, flags); + ret = index_stream_convert_blob(oid, fd, path, flags); else if (!S_ISREG(st->st_mode)) - ret = index_pipe(oid->hash, fd, type, path, flags); + ret = index_pipe(oid, fd, type, path, flags); else if (st->st_size <= big_file_threshold || type != OBJ_BLOB || (path && would_convert_to_git(&the_index, path))) - ret = index_core(oid->hash, fd, xsize_t(st->st_size), type, path, + ret = index_core(oid, fd, xsize_t(st->st_size), type, path, flags); else ret = index_stream(oid, fd, xsize_t(st->st_size), type, path, @@ -1853,13 +1940,13 @@ int index_path(struct object_id *oid, const char *path, struct stat *st, unsigne if (strbuf_readlink(&sb, path, st->st_size)) return error_errno("readlink(\"%s\")", path); if (!(flags & HASH_WRITE_OBJECT)) - hash_sha1_file(sb.buf, sb.len, blob_type, oid->hash); - else if (write_sha1_file(sb.buf, sb.len, blob_type, oid->hash)) + hash_object_file(sb.buf, sb.len, blob_type, oid); + else if (write_object_file(sb.buf, sb.len, blob_type, oid)) rc = error("%s: failed to insert into database", path); strbuf_release(&sb); break; case S_IFDIR: - return resolve_gitlink_ref(path, "HEAD", oid->hash); + return resolve_gitlink_ref(path, "HEAD", oid); default: return error("%s: unsupported file type", path); } @@ -1888,7 +1975,7 @@ void assert_sha1_type(const unsigned char *sha1, enum object_type expect) die("%s is not a valid object", sha1_to_hex(sha1)); if (type != expect) die("%s is not a valid '%s' object", sha1_to_hex(sha1), - typename(expect)); + type_name(expect)); } int for_each_file_in_obj_subdir(unsigned int subdir_nr, @@ -1902,6 +1989,7 @@ int for_each_file_in_obj_subdir(unsigned int subdir_nr, DIR *dir; struct dirent *de; int r = 0; + struct object_id oid; if (subdir_nr > 0xff) BUG("invalid loose object subdirectory: %x", subdir_nr); @@ -1909,7 +1997,6 @@ int for_each_file_in_obj_subdir(unsigned int subdir_nr, origlen = path->len; strbuf_complete(path, '/'); strbuf_addf(path, "%02x", subdir_nr); - baselen = path->len; dir = opendir(path->buf); if (!dir) { @@ -1919,27 +2006,27 @@ int for_each_file_in_obj_subdir(unsigned int subdir_nr, return r; } + oid.hash[0] = subdir_nr; + strbuf_addch(path, '/'); + baselen = path->len; + while ((de = readdir(dir))) { + size_t namelen; if (is_dot_or_dotdot(de->d_name)) continue; + namelen = strlen(de->d_name); strbuf_setlen(path, baselen); - strbuf_addf(path, "/%s", de->d_name); - - if (strlen(de->d_name) == GIT_SHA1_HEXSZ - 2) { - char hex[GIT_MAX_HEXSZ+1]; - struct object_id oid; - - xsnprintf(hex, sizeof(hex), "%02x%s", - subdir_nr, de->d_name); - if (!get_oid_hex(hex, &oid)) { - if (obj_cb) { - r = obj_cb(&oid, path->buf, data); - if (r) - break; - } - continue; + strbuf_add(path, de->d_name, namelen); + if (namelen == GIT_SHA1_HEXSZ - 2 && + !hex_to_bytes(oid.hash + 1, de->d_name, + GIT_SHA1_RAWSZ - 1)) { + if (obj_cb) { + r = obj_cb(&oid, path->buf, data); + if (r) + break; } + continue; } if (cruft_cb) { @@ -1950,7 +2037,7 @@ int for_each_file_in_obj_subdir(unsigned int subdir_nr, } closedir(dir); - strbuf_setlen(path, baselen); + strbuf_setlen(path, baselen - 1); if (!r && subdir_cb) r = subdir_cb(subdir_nr, path->buf, data); @@ -2039,14 +2126,14 @@ static int check_stream_sha1(git_zstream *stream, const char *path, const unsigned char *expected_sha1) { - git_SHA_CTX c; + git_hash_ctx c; unsigned char real_sha1[GIT_MAX_RAWSZ]; unsigned char buf[4096]; unsigned long total_read; int status = Z_OK; - git_SHA1_Init(&c); - git_SHA1_Update(&c, hdr, stream->total_out); + the_hash_algo->init_fn(&c); + the_hash_algo->update_fn(&c, hdr, stream->total_out); /* * We already read some bytes into hdr, but the ones up to the NUL @@ -2065,7 +2152,7 @@ static int check_stream_sha1(git_zstream *stream, if (size - total_read < stream->avail_out) stream->avail_out = size - total_read; status = git_inflate(stream, Z_FINISH); - git_SHA1_Update(&c, buf, stream->next_out - buf); + the_hash_algo->update_fn(&c, buf, stream->next_out - buf); total_read += stream->next_out - buf; } git_inflate_end(stream); @@ -2080,7 +2167,7 @@ static int check_stream_sha1(git_zstream *stream, return -1; } - git_SHA1_Final(real_sha1, &c); + the_hash_algo->final_fn(real_sha1, &c); if (hashcmp(expected_sha1, real_sha1)) { error("sha1 mismatch for %s (expected %s)", path, sha1_to_hex(expected_sha1)); @@ -2133,7 +2220,7 @@ int read_loose_object(const char *path, goto out; } if (check_sha1_signature(expected_sha1, *contents, - *size, typename(*type))) { + *size, type_name(*type))) { error("sha1 mismatch for %s (expected %s)", path, sha1_to_hex(expected_sha1)); free(*contents); |