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1 | #include "builtin.h" | |
2 | #include "cache.h" | |
3 | #include "pack.h" | |
4 | #include "pack-revindex.h" | |
5 | #include "parse-options.h" | |
6 | ||
7 | #define MAX_CHAIN 50 | |
8 | ||
9 | #define VERIFY_PACK_VERBOSE 01 | |
10 | #define VERIFY_PACK_STAT_ONLY 02 | |
11 | ||
12 | static void show_pack_info(struct packed_git *p, unsigned int flags) | |
13 | { | |
14 | uint32_t nr_objects, i; | |
15 | int cnt; | |
16 | int stat_only = flags & VERIFY_PACK_STAT_ONLY; | |
17 | unsigned long chain_histogram[MAX_CHAIN+1], baseobjects; | |
18 | ||
19 | nr_objects = p->num_objects; | |
20 | memset(chain_histogram, 0, sizeof(chain_histogram)); | |
21 | baseobjects = 0; | |
22 | ||
23 | for (i = 0; i < nr_objects; i++) { | |
24 | const unsigned char *sha1; | |
25 | unsigned char base_sha1[20]; | |
26 | const char *type; | |
27 | unsigned long size; | |
28 | unsigned long store_size; | |
29 | off_t offset; | |
30 | unsigned int delta_chain_length; | |
31 | ||
32 | sha1 = nth_packed_object_sha1(p, i); | |
33 | if (!sha1) | |
34 | die("internal error pack-check nth-packed-object"); | |
35 | offset = nth_packed_object_offset(p, i); | |
36 | type = packed_object_info_detail(p, offset, &size, &store_size, | |
37 | &delta_chain_length, | |
38 | base_sha1); | |
39 | if (!stat_only) | |
40 | printf("%s ", sha1_to_hex(sha1)); | |
41 | if (!delta_chain_length) { | |
42 | if (!stat_only) | |
43 | printf("%-6s %lu %lu %"PRIuMAX"\n", | |
44 | type, size, store_size, (uintmax_t)offset); | |
45 | baseobjects++; | |
46 | } | |
47 | else { | |
48 | if (!stat_only) | |
49 | printf("%-6s %lu %lu %"PRIuMAX" %u %s\n", | |
50 | type, size, store_size, (uintmax_t)offset, | |
51 | delta_chain_length, sha1_to_hex(base_sha1)); | |
52 | if (delta_chain_length <= MAX_CHAIN) | |
53 | chain_histogram[delta_chain_length]++; | |
54 | else | |
55 | chain_histogram[0]++; | |
56 | } | |
57 | } | |
58 | ||
59 | if (baseobjects) | |
60 | printf("non delta: %lu object%s\n", | |
61 | baseobjects, baseobjects > 1 ? "s" : ""); | |
62 | ||
63 | for (cnt = 1; cnt <= MAX_CHAIN; cnt++) { | |
64 | if (!chain_histogram[cnt]) | |
65 | continue; | |
66 | printf("chain length = %d: %lu object%s\n", cnt, | |
67 | chain_histogram[cnt], | |
68 | chain_histogram[cnt] > 1 ? "s" : ""); | |
69 | } | |
70 | if (chain_histogram[0]) | |
71 | printf("chain length > %d: %lu object%s\n", MAX_CHAIN, | |
72 | chain_histogram[0], | |
73 | chain_histogram[0] > 1 ? "s" : ""); | |
74 | } | |
75 | ||
76 | static int verify_one_pack(const char *path, unsigned int flags) | |
77 | { | |
78 | char arg[PATH_MAX]; | |
79 | int len; | |
80 | int verbose = flags & VERIFY_PACK_VERBOSE; | |
81 | int stat_only = flags & VERIFY_PACK_STAT_ONLY; | |
82 | struct packed_git *pack; | |
83 | int err; | |
84 | ||
85 | len = strlcpy(arg, path, PATH_MAX); | |
86 | if (len >= PATH_MAX) | |
87 | return error("name too long: %s", path); | |
88 | ||
89 | /* | |
90 | * In addition to "foo.idx" we accept "foo.pack" and "foo"; | |
91 | * normalize these forms to "foo.idx" for add_packed_git(). | |
92 | */ | |
93 | if (has_extension(arg, ".pack")) { | |
94 | strcpy(arg + len - 5, ".idx"); | |
95 | len--; | |
96 | } else if (!has_extension(arg, ".idx")) { | |
97 | if (len + 4 >= PATH_MAX) | |
98 | return error("name too long: %s.idx", arg); | |
99 | strcpy(arg + len, ".idx"); | |
100 | len += 4; | |
101 | } | |
102 | ||
103 | /* | |
104 | * add_packed_git() uses our buffer (containing "foo.idx") to | |
105 | * build the pack filename ("foo.pack"). Make sure it fits. | |
106 | */ | |
107 | if (len + 1 >= PATH_MAX) { | |
108 | arg[len - 4] = '\0'; | |
109 | return error("name too long: %s.pack", arg); | |
110 | } | |
111 | ||
112 | pack = add_packed_git(arg, len, 1); | |
113 | if (!pack) | |
114 | return error("packfile %s not found.", arg); | |
115 | ||
116 | install_packed_git(pack); | |
117 | ||
118 | if (!stat_only) | |
119 | err = verify_pack(pack); | |
120 | else | |
121 | err = open_pack_index(pack); | |
122 | ||
123 | if (verbose || stat_only) { | |
124 | if (err) | |
125 | printf("%s: bad\n", pack->pack_name); | |
126 | else { | |
127 | show_pack_info(pack, flags); | |
128 | if (!stat_only) | |
129 | printf("%s: ok\n", pack->pack_name); | |
130 | } | |
131 | } | |
132 | ||
133 | return err; | |
134 | } | |
135 | ||
136 | static const char * const verify_pack_usage[] = { | |
137 | "git verify-pack [-v|--verbose] [-s|--stat-only] <pack>...", | |
138 | NULL | |
139 | }; | |
140 | ||
141 | int cmd_verify_pack(int argc, const char **argv, const char *prefix) | |
142 | { | |
143 | int err = 0; | |
144 | unsigned int flags = 0; | |
145 | int i; | |
146 | const struct option verify_pack_options[] = { | |
147 | OPT_BIT('v', "verbose", &flags, "verbose", | |
148 | VERIFY_PACK_VERBOSE), | |
149 | OPT_BIT('s', "stat-only", &flags, "show statistics only", | |
150 | VERIFY_PACK_STAT_ONLY), | |
151 | OPT_END() | |
152 | }; | |
153 | ||
154 | git_config(git_default_config, NULL); | |
155 | argc = parse_options(argc, argv, prefix, verify_pack_options, | |
156 | verify_pack_usage, 0); | |
157 | if (argc < 1) | |
158 | usage_with_options(verify_pack_usage, verify_pack_options); | |
159 | for (i = 0; i < argc; i++) { | |
160 | if (verify_one_pack(argv[i], flags)) | |
161 | err = 1; | |
162 | discard_revindex(); | |
163 | } | |
164 | ||
165 | return err; | |
166 | } |