builtin/count-objects.c

   1 /*
   2  * Builtin "git count-objects".
   3  *
   4  * Copyright (c) 2006 Junio C Hamano
   5  */
   6
   7 #include "cache.h"
   8 #include "config.h"
   9 #include "dir.h"
  10 #include "builtin.h"
  11 #include "parse-options.h"
  12 #include "quote.h"
  13
  14 static unsigned long garbage;
  15 static off_t size_garbage;
  16 static int verbose;
  17 static unsigned long loose, packed, packed_loose;
  18 static off_t loose_size;
  19
  20 static const char *bits_to_msg(unsigned seen_bits)
  21 {
  22         switch (seen_bits) {
  23         case 0:
  24                 return "no corresponding .idx or .pack";
  25         case PACKDIR_FILE_GARBAGE:
  26                 return "garbage found";
  27         case PACKDIR_FILE_PACK:
  28                 return "no corresponding .idx";
  29         case PACKDIR_FILE_IDX:
  30                 return "no corresponding .pack";
  31         case PACKDIR_FILE_PACK|PACKDIR_FILE_IDX:
  32         default:
  33                 return NULL;
  34         }
  35 }
  36
  37 static void real_report_garbage(unsigned seen_bits, const char *path)
  38 {
  39         struct stat st;
  40         const char *desc = bits_to_msg(seen_bits);
  41
  42         if (!desc)
  43                 return;
  44
  45         if (!stat(path, &st))
  46                 size_garbage += st.st_size;
  47         warning("%s: %s", desc, path);
  48         garbage++;
  49 }
  50
  51 static void loose_garbage(const char *path)
  52 {
  53         if (verbose)
  54                 report_garbage(PACKDIR_FILE_GARBAGE, path);
  55 }
  56
  57 static int count_loose(const struct object_id *oid, const char *path, void *data)
  58 {
  59         struct stat st;
  60
  61         if (lstat(path, &st) || !S_ISREG(st.st_mode))
  62                 loose_garbage(path);
  63         else {
  64                 loose_size += on_disk_bytes(st);
  65                 loose++;
  66                 if (verbose && has_sha1_pack(oid->hash))
  67                         packed_loose++;
  68         }
  69         return 0;
  70 }
  71
  72 static int count_cruft(const char *basename, const char *path, void *data)
  73 {
  74         loose_garbage(path);
  75         return 0;
  76 }
  77
  78 static int print_alternate(struct alternate_object_database *alt, void *data)
  79 {
  80         printf("alternate: ");
  81         quote_c_style(alt->path, NULL, stdout, 0);
  82         putchar('\n');
  83         return 0;
  84 }
  85
  86 static char const * const count_objects_usage[] = {
  87         N_("git count-objects [-v] [-H | --human-readable]"),
  88         NULL
  89 };
  90
  91 int cmd_count_objects(int argc, const char **argv, const char *prefix)
  92 {
  93         int human_readable = 0;
  94         struct option opts[] = {
  95                 OPT__VERBOSE(&verbose, N_("be verbose")),
  96                 OPT_BOOL('H', "human-readable", &human_readable,
  97                          N_("print sizes in human readable format")),
  98                 OPT_END(),
  99         };
 100
 101         git_config(git_default_config, NULL);
 102
 103         argc = parse_options(argc, argv, prefix, opts, count_objects_usage, 0);
 104         /* we do not take arguments other than flags for now */
 105         if (argc)
 106                 usage_with_options(count_objects_usage, opts);
 107         if (verbose) {
 108                 report_garbage = real_report_garbage;
 109                 report_linked_checkout_garbage();
 110         }
 111
 112         for_each_loose_file_in_objdir(get_object_directory(),
 113                                       count_loose, count_cruft, NULL, NULL);
 114
 115         if (verbose) {
 116                 struct packed_git *p;
 117                 unsigned long num_pack = 0;
 118                 off_t size_pack = 0;
 119                 struct strbuf loose_buf = STRBUF_INIT;
 120                 struct strbuf pack_buf = STRBUF_INIT;
 121                 struct strbuf garbage_buf = STRBUF_INIT;
 122                 if (!packed_git)
 123                         prepare_packed_git();
 124                 for (p = packed_git; p; p = p->next) {
 125                         if (!p->pack_local)
 126                                 continue;
 127                         if (open_pack_index(p))
 128                                 continue;
 129                         packed += p->num_objects;
 130                         size_pack += p->pack_size + p->index_size;
 131                         num_pack++;
 132                 }
 133
 134                 if (human_readable) {
 135                         strbuf_humanise_bytes(&loose_buf, loose_size);
 136                         strbuf_humanise_bytes(&pack_buf, size_pack);
 137                         strbuf_humanise_bytes(&garbage_buf, size_garbage);
 138                 } else {
 139                         strbuf_addf(&loose_buf, "%lu",
 140                                     (unsigned long)(loose_size / 1024));
 141                         strbuf_addf(&pack_buf, "%lu",
 142                                     (unsigned long)(size_pack / 1024));
 143                         strbuf_addf(&garbage_buf, "%lu",
 144                                     (unsigned long)(size_garbage / 1024));
 145                 }
 146
 147                 printf("count: %lu\n", loose);
 148                 printf("size: %s\n", loose_buf.buf);
 149                 printf("in-pack: %lu\n", packed);
 150                 printf("packs: %lu\n", num_pack);
 151                 printf("size-pack: %s\n", pack_buf.buf);
 152                 printf("prune-packable: %lu\n", packed_loose);
 153                 printf("garbage: %lu\n", garbage);
 154                 printf("size-garbage: %s\n", garbage_buf.buf);
 155                 foreach_alt_odb(print_alternate, NULL);
 156                 strbuf_release(&loose_buf);
 157                 strbuf_release(&pack_buf);
 158                 strbuf_release(&garbage_buf);
 159         } else {
 160                 struct strbuf buf = STRBUF_INIT;
 161                 if (human_readable)
 162                         strbuf_humanise_bytes(&buf, loose_size);
 163                 else
 164                         strbuf_addf(&buf, "%lu kilobytes",
 165                                     (unsigned long)(loose_size / 1024));
 166                 printf("%lu objects, %s\n", loose, buf.buf);
 167                 strbuf_release(&buf);
 168         }
 169         return 0;
 170 }