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 "builtin.h"
   9 #include "parse-options.h"
  10
  11 static void count_objects(DIR *d, char *path, int len, int verbose,
  12                           unsigned long *loose,
  13                           unsigned long *loose_size,
  14                           unsigned long *packed_loose,
  15                           unsigned long *garbage)
  16 {
  17         struct dirent *ent;
  18         while ((ent = readdir(d)) != NULL) {
  19                 char hex[41];
  20                 unsigned char sha1[20];
  21                 const char *cp;
  22                 int bad = 0;
  23
  24                 if ((ent->d_name[0] == '.') &&
  25                     (ent->d_name[1] == 0 ||
  26                      ((ent->d_name[1] == '.') && (ent->d_name[2] == 0))))
  27                         continue;
  28                 for (cp = ent->d_name; *cp; cp++) {
  29                         int ch = *cp;
  30                         if (('0' <= ch && ch <= '9') ||
  31                             ('a' <= ch && ch <= 'f'))
  32                                 continue;
  33                         bad = 1;
  34                         break;
  35                 }
  36                 if (cp - ent->d_name != 38)
  37                         bad = 1;
  38                 else {
  39                         struct stat st;
  40                         memcpy(path + len + 3, ent->d_name, 38);
  41                         path[len + 2] = '/';
  42                         path[len + 41] = 0;
  43                         if (lstat(path, &st) || !S_ISREG(st.st_mode))
  44                                 bad = 1;
  45                         else
  46                                 (*loose_size) += xsize_t(st.st_blocks);
  47                 }
  48                 if (bad) {
  49                         if (verbose) {
  50                                 error("garbage found: %.*s/%s",
  51                                       len + 2, path, ent->d_name);
  52                                 (*garbage)++;
  53                         }
  54                         continue;
  55                 }
  56                 (*loose)++;
  57                 if (!verbose)
  58                         continue;
  59                 memcpy(hex, path+len, 2);
  60                 memcpy(hex+2, ent->d_name, 38);
  61                 hex[40] = 0;
  62                 if (get_sha1_hex(hex, sha1))
  63                         die("internal error");
  64                 if (has_sha1_pack(sha1, NULL))
  65                         (*packed_loose)++;
  66         }
  67 }
  68
  69 static char const * const count_objects_usage[] = {
  70         "git count-objects [-v]",
  71         NULL
  72 };
  73
  74 int cmd_count_objects(int argc, const char **argv, const char *prefix)
  75 {
  76         int i, verbose = 0;
  77         const char *objdir = get_object_directory();
  78         int len = strlen(objdir);
  79         char *path = xmalloc(len + 50);
  80         unsigned long loose = 0, packed = 0, packed_loose = 0, garbage = 0;
  81         unsigned long loose_size = 0;
  82         struct option opts[] = {
  83                 OPT__VERBOSE(&verbose),
  84                 OPT_END(),
  85         };
  86
  87         argc = parse_options(argc, argv, opts, count_objects_usage, 0);
  88         /* we do not take arguments other than flags for now */
  89         if (argc)
  90                 usage_with_options(count_objects_usage, opts);
  91         memcpy(path, objdir, len);
  92         if (len && objdir[len-1] != '/')
  93                 path[len++] = '/';
  94         for (i = 0; i < 256; i++) {
  95                 DIR *d;
  96                 sprintf(path + len, "%02x", i);
  97                 d = opendir(path);
  98                 if (!d)
  99                         continue;
 100                 count_objects(d, path, len, verbose,
 101                               &loose, &loose_size, &packed_loose, &garbage);
 102                 closedir(d);
 103         }
 104         if (verbose) {
 105                 struct packed_git *p;
 106                 unsigned long num_pack = 0;
 107                 if (!packed_git)
 108                         prepare_packed_git();
 109                 for (p = packed_git; p; p = p->next) {
 110                         if (!p->pack_local)
 111                                 continue;
 112                         if (open_pack_index(p))
 113                                 continue;
 114                         packed += p->num_objects;
 115                         num_pack++;
 116                 }
 117                 printf("count: %lu\n", loose);
 118                 printf("size: %lu\n", loose_size / 2);
 119                 printf("in-pack: %lu\n", packed);
 120                 printf("packs: %lu\n", num_pack);
 121                 printf("prune-packable: %lu\n", packed_loose);
 122                 printf("garbage: %lu\n", garbage);
 123         }
 124         else
 125                 printf("%lu objects, %lu kilobytes\n",
 126                        loose, loose_size / 2);
 127         return 0;
 128 }