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Commit | Line | Data |
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358ddb62 LT |
1 | #include "cache.h" |
2 | #include "refs.h" | |
3 | #include "object.h" | |
4 | #include "tag.h" | |
5 | ||
97f7a7bd | 6 | static const char show_ref_usage[] = "git show-ref [-q|--quiet] [--verify] [-h|--head] [-d|--dereference] [-s|--hash[=<length>]] [--abbrev[=<length>]] [--tags] [--heads] [--] [pattern*]"; |
358ddb62 | 7 | |
c40abef8 | 8 | static int deref_tags = 0, show_head = 0, tags_only = 0, heads_only = 0, |
2eaf2224 | 9 | found_match = 0, verify = 0, quiet = 0, hash_only = 0, abbrev = 0; |
358ddb62 LT |
10 | static const char **pattern; |
11 | ||
eaf12a8c | 12 | static int show_ref(const char *refname, const unsigned char *sha1, int flag, void *cbdata) |
358ddb62 LT |
13 | { |
14 | struct object *obj; | |
2eaf2224 | 15 | const char *hex; |
358ddb62 LT |
16 | |
17 | if (tags_only || heads_only) { | |
18 | int match; | |
19 | ||
20 | match = heads_only && !strncmp(refname, "refs/heads/", 11); | |
21 | match |= tags_only && !strncmp(refname, "refs/tags/", 10); | |
22 | if (!match) | |
23 | return 0; | |
24 | } | |
25 | if (pattern) { | |
26 | int reflen = strlen(refname); | |
27 | const char **p = pattern, *m; | |
28 | while ((m = *p++) != NULL) { | |
29 | int len = strlen(m); | |
30 | if (len > reflen) | |
31 | continue; | |
32 | if (memcmp(m, refname + reflen - len, len)) | |
33 | continue; | |
34 | if (len == reflen) | |
35 | goto match; | |
36 | /* "--verify" requires an exact match */ | |
37 | if (verify) | |
38 | continue; | |
39 | if (refname[reflen - len - 1] == '/') | |
40 | goto match; | |
41 | } | |
42 | return 0; | |
43 | } | |
44 | ||
45 | match: | |
46 | found_match++; | |
47 | obj = parse_object(sha1); | |
48 | if (!obj) { | |
49 | if (quiet) | |
50 | return 0; | |
51 | die("git-show-ref: bad ref %s (%s)", refname, sha1_to_hex(sha1)); | |
52 | } | |
53 | if (quiet) | |
54 | return 0; | |
2eaf2224 JH |
55 | |
56 | hex = find_unique_abbrev(sha1, abbrev); | |
c40abef8 | 57 | if (hash_only) |
2eaf2224 | 58 | printf("%s\n", hex); |
c40abef8 | 59 | else |
2eaf2224 | 60 | printf("%s %s\n", hex, refname); |
358ddb62 LT |
61 | if (deref_tags && obj->type == OBJ_TAG) { |
62 | obj = deref_tag(obj, refname, 0); | |
2eaf2224 JH |
63 | hex = find_unique_abbrev(obj->sha1, abbrev); |
64 | printf("%s %s^{}\n", hex, refname); | |
358ddb62 LT |
65 | } |
66 | return 0; | |
67 | } | |
68 | ||
69 | int cmd_show_ref(int argc, const char **argv, const char *prefix) | |
70 | { | |
71 | int i; | |
72 | ||
73 | for (i = 1; i < argc; i++) { | |
74 | const char *arg = argv[i]; | |
75 | if (*arg != '-') { | |
76 | pattern = argv + i; | |
77 | break; | |
78 | } | |
79 | if (!strcmp(arg, "--")) { | |
80 | pattern = argv + i + 1; | |
81 | if (!*pattern) | |
82 | pattern = NULL; | |
83 | break; | |
84 | } | |
85 | if (!strcmp(arg, "-q") || !strcmp(arg, "--quiet")) { | |
86 | quiet = 1; | |
87 | continue; | |
88 | } | |
89 | if (!strcmp(arg, "-h") || !strcmp(arg, "--head")) { | |
90 | show_head = 1; | |
91 | continue; | |
92 | } | |
93 | if (!strcmp(arg, "-d") || !strcmp(arg, "--dereference")) { | |
94 | deref_tags = 1; | |
95 | continue; | |
96 | } | |
c40abef8 CC |
97 | if (!strcmp(arg, "-s") || !strcmp(arg, "--hash")) { |
98 | hash_only = 1; | |
99 | continue; | |
100 | } | |
2eaf2224 JH |
101 | if (!strncmp(arg, "--hash=", 7) || |
102 | (!strncmp(arg, "--abbrev", 8) && | |
103 | (arg[8] == '=' || arg[8] == '\0'))) { | |
104 | if (arg[3] != 'h' && !arg[8]) | |
105 | /* --abbrev only */ | |
106 | abbrev = DEFAULT_ABBREV; | |
107 | else { | |
108 | /* --hash= or --abbrev= */ | |
109 | char *end; | |
110 | if (arg[3] == 'h') { | |
111 | hash_only = 1; | |
112 | arg += 7; | |
113 | } | |
114 | else | |
115 | arg += 9; | |
116 | abbrev = strtoul(arg, &end, 10); | |
117 | if (*end || abbrev > 40) | |
118 | usage(show_ref_usage); | |
119 | if (abbrev < MINIMUM_ABBREV) | |
120 | abbrev = MINIMUM_ABBREV; | |
121 | } | |
122 | continue; | |
123 | } | |
358ddb62 LT |
124 | if (!strcmp(arg, "--verify")) { |
125 | verify = 1; | |
126 | continue; | |
127 | } | |
128 | if (!strcmp(arg, "--tags")) { | |
129 | tags_only = 1; | |
130 | continue; | |
131 | } | |
132 | if (!strcmp(arg, "--heads")) { | |
133 | heads_only = 1; | |
134 | continue; | |
135 | } | |
136 | usage(show_ref_usage); | |
137 | } | |
138 | if (show_head) | |
eaf12a8c JH |
139 | head_ref(show_ref, NULL); |
140 | for_each_ref(show_ref, NULL); | |
358ddb62 LT |
141 | if (!found_match) { |
142 | if (verify && !quiet) | |
143 | die("No match"); | |
144 | return 1; | |
145 | } | |
146 | return 0; | |
147 | } |