143 lines
3.3 KiB
C
143 lines
3.3 KiB
C
#include "builtin.h"
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#include "cache.h"
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#include "pack.h"
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#include "pack-revindex.h"
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#define MAX_CHAIN 50
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static void show_pack_info(struct packed_git *p)
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{
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uint32_t nr_objects, i, chain_histogram[MAX_CHAIN+1];
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nr_objects = p->num_objects;
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memset(chain_histogram, 0, sizeof(chain_histogram));
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for (i = 0; i < nr_objects; i++) {
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const unsigned char *sha1;
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unsigned char base_sha1[20];
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const char *type;
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unsigned long size;
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unsigned long store_size;
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off_t offset;
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unsigned int delta_chain_length;
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sha1 = nth_packed_object_sha1(p, i);
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if (!sha1)
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die("internal error pack-check nth-packed-object");
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offset = nth_packed_object_offset(p, i);
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type = packed_object_info_detail(p, offset, &size, &store_size,
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&delta_chain_length,
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base_sha1);
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printf("%s ", sha1_to_hex(sha1));
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if (!delta_chain_length)
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printf("%-6s %lu %lu %"PRIuMAX"\n",
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type, size, store_size, (uintmax_t)offset);
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else {
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printf("%-6s %lu %lu %"PRIuMAX" %u %s\n",
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type, size, store_size, (uintmax_t)offset,
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delta_chain_length, sha1_to_hex(base_sha1));
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if (delta_chain_length <= MAX_CHAIN)
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chain_histogram[delta_chain_length]++;
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else
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chain_histogram[0]++;
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}
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}
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for (i = 0; i <= MAX_CHAIN; i++) {
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if (!chain_histogram[i])
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continue;
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printf("chain length = %"PRIu32": %"PRIu32" object%s\n", i,
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chain_histogram[i], chain_histogram[i] > 1 ? "s" : "");
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}
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if (chain_histogram[0])
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printf("chain length > %d: %"PRIu32" object%s\n", MAX_CHAIN,
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chain_histogram[0], chain_histogram[0] > 1 ? "s" : "");
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}
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static int verify_one_pack(const char *path, int verbose)
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{
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char arg[PATH_MAX];
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int len;
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struct packed_git *pack;
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int err;
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len = strlcpy(arg, path, PATH_MAX);
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if (len >= PATH_MAX)
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return error("name too long: %s", path);
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/*
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* In addition to "foo.idx" we accept "foo.pack" and "foo";
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* normalize these forms to "foo.idx" for add_packed_git().
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*/
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if (has_extension(arg, ".pack")) {
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strcpy(arg + len - 5, ".idx");
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len--;
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} else if (!has_extension(arg, ".idx")) {
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if (len + 4 >= PATH_MAX)
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return error("name too long: %s.idx", arg);
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strcpy(arg + len, ".idx");
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len += 4;
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}
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/*
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* add_packed_git() uses our buffer (containing "foo.idx") to
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* build the pack filename ("foo.pack"). Make sure it fits.
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*/
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if (len + 1 >= PATH_MAX) {
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arg[len - 4] = '\0';
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return error("name too long: %s.pack", arg);
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}
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pack = add_packed_git(arg, len, 1);
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if (!pack)
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return error("packfile %s not found.", arg);
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install_packed_git(pack);
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err = verify_pack(pack);
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if (verbose) {
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if (err)
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printf("%s: bad\n", pack->pack_name);
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else {
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show_pack_info(pack);
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printf("%s: ok\n", pack->pack_name);
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}
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}
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return err;
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}
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static const char verify_pack_usage[] = "git verify-pack [-v] <pack>...";
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int cmd_verify_pack(int argc, const char **argv, const char *prefix)
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{
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int err = 0;
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int verbose = 0;
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int no_more_options = 0;
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int nothing_done = 1;
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git_config(git_default_config, NULL);
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while (1 < argc) {
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if (!no_more_options && argv[1][0] == '-') {
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if (!strcmp("-v", argv[1]))
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verbose = 1;
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else if (!strcmp("--", argv[1]))
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no_more_options = 1;
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else
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usage(verify_pack_usage);
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}
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else {
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if (verify_one_pack(argv[1], verbose))
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err = 1;
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discard_revindex();
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nothing_done = 0;
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}
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argc--; argv++;
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}
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if (nothing_done)
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usage(verify_pack_usage);
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return err;
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}
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