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 unsigned long garbage;
  13 static off_t size_garbage;
  14
  15 static void real_report_garbage(const char *desc, const char *path)
  16 {
  17         struct stat st;
  18         if (!stat(path, &st))
  19                 size_garbage += st.st_size;
  20         warning("%s: %s", desc, path);
  21         garbage++;
  22 }
  23
  24 static void count_objects(DIR *d, char *path, int len, int verbose,
  25                           unsigned long *loose,
  26                           off_t *loose_size,
  27                           unsigned long *packed_loose)
  28 {
  29         struct dirent *ent;
  30         while ((ent = readdir(d)) != NULL) {
  31                 char hex[41];
  32                 unsigned char sha1[20];
  33                 const char *cp;
  34                 int bad = 0;
  35
  36                 if (is_dot_or_dotdot(ent->d_name))
  37                         continue;
  38                 for (cp = ent->d_name; *cp; cp++) {
  39                         int ch = *cp;
  40                         if (('0' <= ch && ch <= '9') ||
  41                             ('a' <= ch && ch <= 'f'))
  42                                 continue;
  43                         bad = 1;
  44                         break;
  45                 }
  46                 if (cp - ent->d_name != 38)
  47                         bad = 1;
  48                 else {
  49                         struct stat st;
  50                         memcpy(path + len + 3, ent->d_name, 38);
  51                         path[len + 2] = '/';
  52                         path[len + 41] = 0;
  53                         if (lstat(path, &st) || !S_ISREG(st.st_mode))
  54                                 bad = 1;
  55                         else
  56                                 (*loose_size) += xsize_t(on_disk_bytes(st));
  57                 }
  58                 if (bad) {
  59                         if (verbose) {
  60                                 struct strbuf sb = STRBUF_INIT;
  61                                 strbuf_addf(&sb, "%.*s/%s",
  62                                             len + 2, path, ent->d_name);
  63                                 report_garbage("garbage found", sb.buf);
  64                                 strbuf_release(&sb);
  65                         }
  66                         continue;
  67                 }
  68                 (*loose)++;
  69                 if (!verbose)
  70                         continue;
  71                 memcpy(hex, path+len, 2);
  72                 memcpy(hex+2, ent->d_name, 38);
  73                 hex[40] = 0;
  74                 if (get_sha1_hex(hex, sha1))
  75                         die("internal error");
  76                 if (has_sha1_pack(sha1))
  77                         (*packed_loose)++;
  78         }
  79 }
  80
  81 static char const * const count_objects_usage[] = {
  82         N_("git count-objects [-v] [-H | --human-readable]"),
  83         NULL
  84 };
  85
  86 int cmd_count_objects(int argc, const char **argv, const char *prefix)
  87 {
  88         int i, verbose = 0, human_readable = 0;
  89         const char *objdir = get_object_directory();
  90         int len = strlen(objdir);
  91         char *path = xmalloc(len + 50);
  92         unsigned long loose = 0, packed = 0, packed_loose = 0;
  93         off_t loose_size = 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         argc = parse_options(argc, argv, prefix, opts, count_objects_usage, 0);
 102         /* we do not take arguments other than flags for now */
 103         if (argc)
 104                 usage_with_options(count_objects_usage, opts);
 105         if (verbose)
 106                 report_garbage = real_report_garbage;
 107         memcpy(path, objdir, len);
 108         if (len && objdir[len-1] != '/')
 109                 path[len++] = '/';
 110         for (i = 0; i < 256; i++) {
 111                 DIR *d;
 112                 sprintf(path + len, "%02x", i);
 113                 d = opendir(path);
 114                 if (!d)
 115                         continue;
 116                 count_objects(d, path, len, verbose,
 117                               &loose, &loose_size, &packed_loose);
 118                 closedir(d);
 119         }
 120         if (verbose) {
 121                 struct packed_git *p;
 122                 unsigned long num_pack = 0;
 123                 off_t size_pack = 0;
 124                 struct strbuf loose_buf = STRBUF_INIT;
 125                 struct strbuf pack_buf = STRBUF_INIT;
 126                 struct strbuf garbage_buf = STRBUF_INIT;
 127                 if (!packed_git)
 128                         prepare_packed_git();
 129                 for (p = packed_git; p; p = p->next) {
 130                         if (!p->pack_local)
 131                                 continue;
 132                         if (open_pack_index(p))
 133                                 continue;
 134                         packed += p->num_objects;
 135                         size_pack += p->pack_size + p->index_size;
 136                         num_pack++;
 137                 }
 138
 139                 if (human_readable) {
 140                         strbuf_humanise_bytes(&loose_buf, loose_size);
 141                         strbuf_humanise_bytes(&pack_buf, size_pack);
 142                         strbuf_humanise_bytes(&garbage_buf, size_garbage);
 143                 } else {
 144                         strbuf_addf(&loose_buf, "%lu",
 145                                     (unsigned long)(loose_size / 1024));
 146                         strbuf_addf(&pack_buf, "%lu",
 147                                     (unsigned long)(size_pack / 1024));
 148                         strbuf_addf(&garbage_buf, "%lu",
 149                                     (unsigned long)(size_garbage / 1024));
 150                 }
 151
 152                 printf("count: %lu\n", loose);
 153                 printf("size: %s\n", loose_buf.buf);
 154                 printf("in-pack: %lu\n", packed);
 155                 printf("packs: %lu\n", num_pack);
 156                 printf("size-pack: %s\n", pack_buf.buf);
 157                 printf("prune-packable: %lu\n", packed_loose);
 158                 printf("garbage: %lu\n", garbage);
 159                 printf("size-garbage: %s\n", garbage_buf.buf);
 160                 strbuf_release(&loose_buf);
 161                 strbuf_release(&pack_buf);
 162                 strbuf_release(&garbage_buf);
 163         } else {
 164                 struct strbuf buf = STRBUF_INIT;
 165                 if (human_readable)
 166                         strbuf_humanise_bytes(&buf, loose_size);
 167                 else
 168                         strbuf_addf(&buf, "%lu kilobytes",
 169                                     (unsigned long)(loose_size / 1024));
 170                 printf("%lu objects, %s\n", loose, buf.buf);
 171                 strbuf_release(&buf);
 172         }
 173         return 0;
 174 }