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verify-pack --stat-only: show histogram without verifying
When this option is given, the command does not verify the pack contents, but shows the delta chain histogram. If used with --verbose, the usual list of objects is also shown. Signed-off-by: Junio C Hamano <gitster@pobox.com>
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@ -25,7 +25,13 @@ OPTIONS
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-v::
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--verbose::
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After verifying the pack, show list of objects contained
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in the pack.
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in the pack and a histogram of delta chain length.
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-s::
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--stat-only::
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Do not verify the pack contents; only show the histogram of delta
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chain length. With `--verbose`, list of objects is also shown.
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\--::
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Do not interpret any more arguments as options.
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@ -6,10 +6,14 @@
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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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#define VERIFY_PACK_VERBOSE 01
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#define VERIFY_PACK_STAT_ONLY 02
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static void show_pack_info(struct packed_git *p, unsigned int flags)
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{
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uint32_t nr_objects, i;
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int cnt;
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int stat_only = flags & VERIFY_PACK_STAT_ONLY;
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unsigned long chain_histogram[MAX_CHAIN+1], baseobjects;
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nr_objects = p->num_objects;
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@ -32,16 +36,19 @@ static void show_pack_info(struct packed_git *p)
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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 (!stat_only)
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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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if (!stat_only)
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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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baseobjects++;
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}
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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 (!stat_only)
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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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@ -66,10 +73,12 @@ static void show_pack_info(struct packed_git *p)
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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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static int verify_one_pack(const char *path, unsigned int flags)
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{
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char arg[PATH_MAX];
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int len;
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int verbose = flags & VERIFY_PACK_VERBOSE;
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int stat_only = flags & VERIFY_PACK_STAT_ONLY;
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struct packed_git *pack;
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int err;
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@ -105,14 +114,19 @@ static int verify_one_pack(const char *path, int verbose)
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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 (!stat_only)
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err = verify_pack(pack);
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else
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err = open_pack_index(pack);
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if (verbose || stat_only) {
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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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show_pack_info(pack, flags);
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if (!stat_only)
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printf("%s: ok\n", pack->pack_name);
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}
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}
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@ -120,17 +134,20 @@ static int verify_one_pack(const char *path, int verbose)
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}
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static const char * const verify_pack_usage[] = {
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"git verify-pack [-v|--verbose] <pack>...",
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"git verify-pack [-v|--verbose] [-s|--stat-only] <pack>...",
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NULL
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};
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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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unsigned int flags = 0;
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int i;
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const struct option verify_pack_options[] = {
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OPT__VERBOSE(&verbose),
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OPT_BIT('v', "verbose", &flags, "verbose",
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VERIFY_PACK_VERBOSE),
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OPT_BIT('s', "stat-only", &flags, "show statistics only",
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VERIFY_PACK_STAT_ONLY),
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OPT_END()
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};
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@ -140,7 +157,7 @@ int cmd_verify_pack(int argc, const char **argv, const char *prefix)
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if (argc < 1)
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usage_with_options(verify_pack_usage, verify_pack_options);
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for (i = 0; i < argc; i++) {
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if (verify_one_pack(argv[i], verbose))
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if (verify_one_pack(argv[i], flags))
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err = 1;
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discard_revindex();
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}
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