diff options
Diffstat (limited to 'third_party/git/builtin/show-index.c')
| -rw-r--r-- | third_party/git/builtin/show-index.c | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/third_party/git/builtin/show-index.c b/third_party/git/builtin/show-index.c deleted file mode 100644 index 8106b03a6b32..000000000000 --- a/third_party/git/builtin/show-index.c +++ /dev/null @@ -1,106 +0,0 @@ -#include "builtin.h" -#include "cache.h" -#include "pack.h" -#include "parse-options.h" - -static const char *const show_index_usage[] = { - "git show-index [--object-format=<hash-algorithm>]", - NULL -}; - -int cmd_show_index(int argc, const char **argv, const char *prefix) -{ - int i; - unsigned nr; - unsigned int version; - static unsigned int top_index[256]; - unsigned hashsz; - const char *hash_name = NULL; - int hash_algo; - const struct option show_index_options[] = { - OPT_STRING(0, "object-format", &hash_name, N_("hash-algorithm"), - N_("specify the hash algorithm to use")), - OPT_END() - }; - - argc = parse_options(argc, argv, prefix, show_index_options, show_index_usage, 0); - - if (hash_name) { - hash_algo = hash_algo_by_name(hash_name); - if (hash_algo == GIT_HASH_UNKNOWN) - die(_("Unknown hash algorithm")); - repo_set_hash_algo(the_repository, hash_algo); - } - - hashsz = the_hash_algo->rawsz; - - if (fread(top_index, 2 * 4, 1, stdin) != 1) - die("unable to read header"); - if (top_index[0] == htonl(PACK_IDX_SIGNATURE)) { - version = ntohl(top_index[1]); - if (version < 2 || version > 2) - die("unknown index version"); - if (fread(top_index, 256 * 4, 1, stdin) != 1) - die("unable to read index"); - } else { - version = 1; - if (fread(&top_index[2], 254 * 4, 1, stdin) != 1) - die("unable to read index"); - } - nr = 0; - for (i = 0; i < 256; i++) { - unsigned n = ntohl(top_index[i]); - if (n < nr) - die("corrupt index file"); - nr = n; - } - if (version == 1) { - for (i = 0; i < nr; i++) { - unsigned int offset, entry[(GIT_MAX_RAWSZ + 4) / sizeof(unsigned int)]; - - if (fread(entry, 4 + hashsz, 1, stdin) != 1) - die("unable to read entry %u/%u", i, nr); - offset = ntohl(entry[0]); - printf("%u %s\n", offset, hash_to_hex((void *)(entry+1))); - } - } else { - unsigned off64_nr = 0; - struct { - struct object_id oid; - uint32_t crc; - uint32_t off; - } *entries; - ALLOC_ARRAY(entries, nr); - for (i = 0; i < nr; i++) - if (fread(entries[i].oid.hash, hashsz, 1, stdin) != 1) - die("unable to read sha1 %u/%u", i, nr); - for (i = 0; i < nr; i++) - if (fread(&entries[i].crc, 4, 1, stdin) != 1) - die("unable to read crc %u/%u", i, nr); - for (i = 0; i < nr; i++) - if (fread(&entries[i].off, 4, 1, stdin) != 1) - die("unable to read 32b offset %u/%u", i, nr); - for (i = 0; i < nr; i++) { - uint64_t offset; - uint32_t off = ntohl(entries[i].off); - if (!(off & 0x80000000)) { - offset = off; - } else { - uint32_t off64[2]; - if ((off & 0x7fffffff) != off64_nr) - die("inconsistent 64b offset index"); - if (fread(off64, 8, 1, stdin) != 1) - die("unable to read 64b offset %u", off64_nr); - offset = (((uint64_t)ntohl(off64[0])) << 32) | - ntohl(off64[1]); - off64_nr++; - } - printf("%" PRIuMAX " %s (%08"PRIx32")\n", - (uintmax_t) offset, - oid_to_hex(&entries[i].oid), - ntohl(entries[i].crc)); - } - free(entries); - } - return 0; -} |