db21e52f359b6266f148932b1bacebc184486f9a
[git/git.git] / builtin / ls-remote.c
1 #include "builtin.h"
2 #include "cache.h"
3 #include "transport.h"
4 #include "remote.h"
5
6 static const char ls_remote_usage[] =
7 "git ls-remote [--heads] [--tags] [--refs] [--upload-pack=<exec>]\n"
8 " [-q | --quiet] [--exit-code] [--get-url] [<repository> [<refs>...]]";
9
10 /*
11 * Is there one among the list of patterns that match the tail part
12 * of the path?
13 */
14 static int tail_match(const char **pattern, const char *path)
15 {
16 const char *p;
17 char pathbuf[PATH_MAX];
18
19 if (!pattern)
20 return 1; /* no restriction */
21
22 if (snprintf(pathbuf, sizeof(pathbuf), "/%s", path) > sizeof(pathbuf))
23 return error("insanely long ref %.*s...", 20, path);
24 while ((p = *(pattern++)) != NULL) {
25 if (!wildmatch(p, pathbuf, 0, NULL))
26 return 1;
27 }
28 return 0;
29 }
30
31 int cmd_ls_remote(int argc, const char **argv, const char *prefix)
32 {
33 int i;
34 const char *dest = NULL;
35 unsigned flags = 0;
36 int get_url = 0;
37 int quiet = 0;
38 int status = 0;
39 const char *uploadpack = NULL;
40 const char **pattern = NULL;
41
42 struct remote *remote;
43 struct transport *transport;
44 const struct ref *ref;
45
46 if (argc == 2 && !strcmp("-h", argv[1]))
47 usage(ls_remote_usage);
48
49 for (i = 1; i < argc; i++) {
50 const char *arg = argv[i];
51
52 if (*arg == '-') {
53 if (starts_with(arg, "--upload-pack=")) {
54 uploadpack = arg + 14;
55 continue;
56 }
57 if (starts_with(arg, "--exec=")) {
58 uploadpack = arg + 7;
59 continue;
60 }
61 if (!strcmp("--tags", arg) || !strcmp("-t", arg)) {
62 flags |= REF_TAGS;
63 continue;
64 }
65 if (!strcmp("--heads", arg) || !strcmp("-h", arg)) {
66 flags |= REF_HEADS;
67 continue;
68 }
69 if (!strcmp("--refs", arg)) {
70 flags |= REF_NORMAL;
71 continue;
72 }
73 if (!strcmp("--quiet", arg) || !strcmp("-q", arg)) {
74 quiet = 1;
75 continue;
76 }
77 if (!strcmp("--get-url", arg)) {
78 get_url = 1;
79 continue;
80 }
81 if (!strcmp("--exit-code", arg)) {
82 /* return this code if no refs are reported */
83 status = 2;
84 continue;
85 }
86 usage(ls_remote_usage);
87 }
88 dest = arg;
89 i++;
90 break;
91 }
92
93 if (argv[i]) {
94 int j;
95 pattern = xcalloc(argc - i + 1, sizeof(const char *));
96 for (j = i; j < argc; j++)
97 pattern[j - i] = xstrfmt("*/%s", argv[j]);
98 }
99 remote = remote_get(dest);
100 if (!remote) {
101 if (dest)
102 die("bad repository '%s'", dest);
103 die("No remote configured to list refs from.");
104 }
105 if (!remote->url_nr)
106 die("remote %s has no configured URL", dest);
107
108 if (get_url) {
109 printf("%s\n", *remote->url);
110 return 0;
111 }
112
113 transport = transport_get(remote, NULL);
114 if (uploadpack != NULL)
115 transport_set_option(transport, TRANS_OPT_UPLOADPACK, uploadpack);
116
117 ref = transport_get_remote_refs(transport);
118 if (transport_disconnect(transport))
119 return 1;
120
121 if (!dest && !quiet)
122 fprintf(stderr, "From %s\n", *remote->url);
123 for ( ; ref; ref = ref->next) {
124 if (!check_ref_type(ref, flags))
125 continue;
126 if (!tail_match(pattern, ref->name))
127 continue;
128 printf("%s %s\n", oid_to_hex(&ref->old_oid), ref->name);
129 status = 0; /* we found something */
130 }
131 return status;
132 }