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 "dir.h"
   9 #include "builtin.h"
  10 #include "parse-options.h"
  11
  12 static void count_objects(DIR *d, char *path, int len, int verbose,
  13                           unsigned long *loose,
  14                           off_t *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 (is_dot_or_dotdot(ent->d_name))
  26                         continue;
  27                 for (cp = ent->d_name; *cp; cp++) {
  28                         int ch = *cp;
  29                         if (('0' <= ch && ch <= '9') ||
  30                             ('a' <= ch && ch <= 'f'))
  31                                 continue;
  32                         bad = 1;
  33                         break;
  34                 }
  35                 if (cp - ent->d_name != 38)
  36                         bad = 1;
  37                 else {
  38                         struct stat st;
  39                         memcpy(path + len + 3, ent->d_name, 38);
  40                         path[len + 2] = '/';
  41                         path[len + 41] = 0;
  42                         if (lstat(path, &st) || !S_ISREG(st.st_mode))
  43                                 bad = 1;
  44                         else
  45                                 (*loose_size) += xsize_t(on_disk_bytes(st));
  46                 }
  47                 if (bad) {
  48                         if (verbose) {
  49                                 error("garbage found: %.*s/%s",
  50                                       len + 2, path, ent->d_name);
  51                                 (*garbage)++;
  52                         }
  53                         continue;
  54                 }
  55                 (*loose)++;
  56                 if (!verbose)
  57                         continue;
  58                 memcpy(hex, path+len, 2);
  59                 memcpy(hex+2, ent->d_name, 38);
  60                 hex[40] = 0;
  61                 if (get_sha1_hex(hex, sha1))
  62                         die("internal error");
  63                 if (has_sha1_pack(sha1))
  64                         (*packed_loose)++;
  65         }
  66 }
  67
  68 static char const * const count_objects_usage[] = {
  69         "git count-objects [-v]",
  70         NULL
  71 };
  72
  73 int cmd_count_objects(int argc, const char **argv, const char *prefix)
  74 {
  75         int i, verbose = 0;
  76         const char *objdir = get_object_directory();
  77         int len = strlen(objdir);
  78         char *path = xmalloc(len + 50);
  79         unsigned long loose = 0, packed = 0, packed_loose = 0, garbage = 0;
  80         off_t loose_size = 0;
  81         struct option opts[] = {
  82                 OPT__VERBOSE(&verbose),
  83                 OPT_END(),
  84         };
  85
  86         argc = parse_options(argc, argv, prefix, opts, count_objects_usage, 0);
  87         /* we do not take arguments other than flags for now */
  88         if (argc)
  89                 usage_with_options(count_objects_usage, opts);
  90         memcpy(path, objdir, len);
  91         if (len && objdir[len-1] != '/')
  92                 path[len++] = '/';
  93         for (i = 0; i < 256; i++) {
  94                 DIR *d;
  95                 sprintf(path + len, "%02x", i);
  96                 d = opendir(path);
  97                 if (!d)
  98                         continue;
  99                 count_objects(d, path, len, verbose,
 100                               &loose, &loose_size, &packed_loose, &garbage);
 101                 closedir(d);
 102         }
 103         if (verbose) {
 104                 struct packed_git *p;
 105                 unsigned long num_pack = 0;
 106                 off_t size_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                         size_pack += p->pack_size + p->index_size;
 116                         num_pack++;
 117                 }
 118                 printf("count: %lu\n", loose);
 119                 printf("size: %lu\n", (unsigned long) (loose_size / 1024));
 120                 printf("in-pack: %lu\n", packed);
 121                 printf("packs: %lu\n", num_pack);
 122                 printf("size-pack: %lu\n", (unsigned long) (size_pack / 1024));
 123                 printf("prune-packable: %lu\n", packed_loose);
 124                 printf("garbage: %lu\n", garbage);
 125         }
 126         else
 127                 printf("%lu objects, %lu kilobytes\n",
 128                        loose, (unsigned long) (loose_size / 1024));
 129         return 0;
 130 }