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1 | #include "builtin.h" | |
2 | #include "cache.h" | |
3 | #include "pack.h" | |
4 | #include "pack-revindex.h" | |
5 | ||
6 | #define MAX_CHAIN 50 | |
7 | ||
8 | static void show_pack_info(struct packed_git *p) | |
9 | { | |
10 | uint32_t nr_objects, i, chain_histogram[MAX_CHAIN+1]; | |
11 | ||
12 | nr_objects = p->num_objects; | |
13 | memset(chain_histogram, 0, sizeof(chain_histogram)); | |
14 | ||
15 | for (i = 0; i < nr_objects; i++) { | |
16 | const unsigned char *sha1; | |
17 | unsigned char base_sha1[20]; | |
18 | const char *type; | |
19 | unsigned long size; | |
20 | unsigned long store_size; | |
21 | off_t offset; | |
22 | unsigned int delta_chain_length; | |
23 | ||
24 | sha1 = nth_packed_object_sha1(p, i); | |
25 | if (!sha1) | |
26 | die("internal error pack-check nth-packed-object"); | |
27 | offset = nth_packed_object_offset(p, i); | |
28 | type = packed_object_info_detail(p, offset, &size, &store_size, | |
29 | &delta_chain_length, | |
30 | base_sha1); | |
31 | printf("%s ", sha1_to_hex(sha1)); | |
32 | if (!delta_chain_length) | |
33 | printf("%-6s %lu %lu %"PRIuMAX"\n", | |
34 | type, size, store_size, (uintmax_t)offset); | |
35 | else { | |
36 | printf("%-6s %lu %lu %"PRIuMAX" %u %s\n", | |
37 | type, size, store_size, (uintmax_t)offset, | |
38 | delta_chain_length, sha1_to_hex(base_sha1)); | |
39 | if (delta_chain_length <= MAX_CHAIN) | |
40 | chain_histogram[delta_chain_length]++; | |
41 | else | |
42 | chain_histogram[0]++; | |
43 | } | |
44 | } | |
45 | ||
46 | for (i = 0; i <= MAX_CHAIN; i++) { | |
47 | if (!chain_histogram[i]) | |
48 | continue; | |
49 | printf("chain length = %"PRIu32": %"PRIu32" object%s\n", i, | |
50 | chain_histogram[i], chain_histogram[i] > 1 ? "s" : ""); | |
51 | } | |
52 | if (chain_histogram[0]) | |
53 | printf("chain length > %d: %"PRIu32" object%s\n", MAX_CHAIN, | |
54 | chain_histogram[0], chain_histogram[0] > 1 ? "s" : ""); | |
55 | } | |
56 | ||
57 | static int verify_one_pack(const char *path, int verbose) | |
58 | { | |
59 | char arg[PATH_MAX]; | |
60 | int len; | |
61 | struct packed_git *pack; | |
62 | int err; | |
63 | ||
64 | len = strlcpy(arg, path, PATH_MAX); | |
65 | if (len >= PATH_MAX) | |
66 | return error("name too long: %s", path); | |
67 | ||
68 | /* | |
69 | * In addition to "foo.idx" we accept "foo.pack" and "foo"; | |
70 | * normalize these forms to "foo.idx" for add_packed_git(). | |
71 | */ | |
72 | if (has_extension(arg, ".pack")) { | |
73 | strcpy(arg + len - 5, ".idx"); | |
74 | len--; | |
75 | } else if (!has_extension(arg, ".idx")) { | |
76 | if (len + 4 >= PATH_MAX) | |
77 | return error("name too long: %s.idx", arg); | |
78 | strcpy(arg + len, ".idx"); | |
79 | len += 4; | |
80 | } | |
81 | ||
82 | /* | |
83 | * add_packed_git() uses our buffer (containing "foo.idx") to | |
84 | * build the pack filename ("foo.pack"). Make sure it fits. | |
85 | */ | |
86 | if (len + 1 >= PATH_MAX) { | |
87 | arg[len - 4] = '\0'; | |
88 | return error("name too long: %s.pack", arg); | |
89 | } | |
90 | ||
91 | pack = add_packed_git(arg, len, 1); | |
92 | if (!pack) | |
93 | return error("packfile %s not found.", arg); | |
94 | ||
95 | install_packed_git(pack); | |
96 | err = verify_pack(pack); | |
97 | ||
98 | if (verbose) { | |
99 | if (err) | |
100 | printf("%s: bad\n", pack->pack_name); | |
101 | else { | |
102 | show_pack_info(pack); | |
103 | printf("%s: ok\n", pack->pack_name); | |
104 | } | |
105 | } | |
106 | ||
107 | return err; | |
108 | } | |
109 | ||
110 | static const char verify_pack_usage[] = "git verify-pack [-v] <pack>..."; | |
111 | ||
112 | int cmd_verify_pack(int argc, const char **argv, const char *prefix) | |
113 | { | |
114 | int err = 0; | |
115 | int verbose = 0; | |
116 | int no_more_options = 0; | |
117 | int nothing_done = 1; | |
118 | ||
119 | git_config(git_default_config, NULL); | |
120 | while (1 < argc) { | |
121 | if (!no_more_options && argv[1][0] == '-') { | |
122 | if (!strcmp("-v", argv[1])) | |
123 | verbose = 1; | |
124 | else if (!strcmp("--", argv[1])) | |
125 | no_more_options = 1; | |
126 | else | |
127 | usage(verify_pack_usage); | |
128 | } | |
129 | else { | |
130 | if (verify_one_pack(argv[1], verbose)) | |
131 | err = 1; | |
132 | discard_revindex(); | |
133 | nothing_done = 0; | |
134 | } | |
135 | argc--; argv++; | |
136 | } | |
137 | ||
138 | if (nothing_done) | |
139 | usage(verify_pack_usage); | |
140 | ||
141 | return err; | |
142 | } |