diff: do not use null sha1 as a sentinel value
[git/git.git] / builtin / count-objects.c
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1/*
2 * Builtin "git count-objects".
3 *
4 * Copyright (c) 2006 Junio C Hamano
5 */
6
7#include "cache.h"
8ca12c0d 8#include "dir.h"
c7432087 9#include "builtin.h"
833f3abd 10#include "parse-options.h"
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11
12static void count_objects(DIR *d, char *path, int len, int verbose,
13 unsigned long *loose,
c985ddf3 14 off_t *loose_size,
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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
8ca12c0d 25 if (is_dot_or_dotdot(ent->d_name))
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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
fdb2a2a6 45 (*loose_size) += xsize_t(on_disk_bytes(st));
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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");
cd673c1f 63 if (has_sha1_pack(sha1))
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64 (*packed_loose)++;
65 }
66}
67
833f3abd 68static char const * const count_objects_usage[] = {
1b1dd23f 69 "git count-objects [-v]",
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70 NULL
71};
72
73int cmd_count_objects(int argc, const char **argv, const char *prefix)
c7432087 74{
833f3abd 75 int i, verbose = 0;
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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;
c985ddf3 80 off_t loose_size = 0;
833f3abd 81 struct option opts[] = {
fd03881a 82 OPT__VERBOSE(&verbose, "be verbose"),
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83 OPT_END(),
84 };
c7432087 85
37782920 86 argc = parse_options(argc, argv, prefix, opts, count_objects_usage, 0);
c7432087 87 /* we do not take arguments other than flags for now */
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88 if (argc)
89 usage_with_options(count_objects_usage, opts);
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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;
ae72f685 105 unsigned long num_pack = 0;
c985ddf3 106 off_t size_pack = 0;
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107 if (!packed_git)
108 prepare_packed_git();
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109 for (p = packed_git; p; p = p->next) {
110 if (!p->pack_local)
111 continue;
eaa86770 112 if (open_pack_index(p))
d079837e 113 continue;
57059091 114 packed += p->num_objects;
f2238249 115 size_pack += p->pack_size + p->index_size;
ae72f685 116 num_pack++;
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117 }
118 printf("count: %lu\n", loose);
c985ddf3 119 printf("size: %lu\n", (unsigned long) (loose_size / 1024));
c7432087 120 printf("in-pack: %lu\n", packed);
ae72f685 121 printf("packs: %lu\n", num_pack);
c985ddf3 122 printf("size-pack: %lu\n", (unsigned long) (size_pack / 1024));
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123 printf("prune-packable: %lu\n", packed_loose);
124 printf("garbage: %lu\n", garbage);
125 }
126 else
127 printf("%lu objects, %lu kilobytes\n",
c985ddf3 128 loose, (unsigned long) (loose_size / 1024));
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129 return 0;
130}