Merge branch 'mh/maint-lockfile-overflow' into 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 "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 }