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