Merge branch 'maint'
[git] / 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 }