Merge branch 'sg/fix-versioncmp-with-common-suffix'
[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 * const ls_remote_usage[] = {
7         N_("git ls-remote [--heads] [--tags] [--refs] [--upload-pack=<exec>]\n"
8            "                     [-q | --quiet] [--exit-code] [--get-url]\n"
9            "                     [--symref] [<repository> [<refs>...]]"),
10         NULL
11 };
12
13 /*
14  * Is there one among the list of patterns that match the tail part
15  * of the path?
16  */
17 static int tail_match(const char **pattern, const char *path)
18 {
19         const char *p;
20         char pathbuf[PATH_MAX];
21
22         if (!pattern)
23                 return 1; /* no restriction */
24
25         if (snprintf(pathbuf, sizeof(pathbuf), "/%s", path) > sizeof(pathbuf))
26                 return error("insanely long ref %.*s...", 20, path);
27         while ((p = *(pattern++)) != NULL) {
28                 if (!wildmatch(p, pathbuf, 0, NULL))
29                         return 1;
30         }
31         return 0;
32 }
33
34 int cmd_ls_remote(int argc, const char **argv, const char *prefix)
35 {
36         const char *dest = NULL;
37         unsigned flags = 0;
38         int get_url = 0;
39         int quiet = 0;
40         int status = 0;
41         int show_symref_target = 0;
42         const char *uploadpack = NULL;
43         const char **pattern = NULL;
44
45         struct remote *remote;
46         struct transport *transport;
47         const struct ref *ref;
48
49         struct option options[] = {
50                 OPT__QUIET(&quiet, N_("do not print remote URL")),
51                 OPT_STRING(0, "upload-pack", &uploadpack, N_("exec"),
52                            N_("path of git-upload-pack on the remote host")),
53                 { OPTION_STRING, 0, "exec", &uploadpack, N_("exec"),
54                            N_("path of git-upload-pack on the remote host"),
55                            PARSE_OPT_HIDDEN },
56                 OPT_BIT('t', "tags", &flags, N_("limit to tags"), REF_TAGS),
57                 OPT_BIT('h', "heads", &flags, N_("limit to heads"), REF_HEADS),
58                 OPT_BIT(0, "refs", &flags, N_("do not show peeled tags"), REF_NORMAL),
59                 OPT_BOOL(0, "get-url", &get_url,
60                          N_("take url.<base>.insteadOf into account")),
61                 OPT_SET_INT(0, "exit-code", &status,
62                             N_("exit with exit code 2 if no matching refs are found"), 2),
63                 OPT_BOOL(0, "symref", &show_symref_target,
64                          N_("show underlying ref in addition to the object pointed by it")),
65                 OPT_END()
66         };
67
68         argc = parse_options(argc, argv, prefix, options, ls_remote_usage,
69                              PARSE_OPT_STOP_AT_NON_OPTION);
70         dest = argv[0];
71
72         if (argc > 1) {
73                 int i;
74                 pattern = xcalloc(argc, sizeof(const char *));
75                 for (i = 1; i < argc; i++)
76                         pattern[i - 1] = xstrfmt("*/%s", argv[i]);
77         }
78
79         remote = remote_get(dest);
80         if (!remote) {
81                 if (dest)
82                         die("bad repository '%s'", dest);
83                 die("No remote configured to list refs from.");
84         }
85         if (!remote->url_nr)
86                 die("remote %s has no configured URL", dest);
87
88         if (get_url) {
89                 printf("%s\n", *remote->url);
90                 return 0;
91         }
92
93         transport = transport_get(remote, NULL);
94         if (uploadpack != NULL)
95                 transport_set_option(transport, TRANS_OPT_UPLOADPACK, uploadpack);
96
97         ref = transport_get_remote_refs(transport);
98         if (transport_disconnect(transport))
99                 return 1;
100
101         if (!dest && !quiet)
102                 fprintf(stderr, "From %s\n", *remote->url);
103         for ( ; ref; ref = ref->next) {
104                 if (!check_ref_type(ref, flags))
105                         continue;
106                 if (!tail_match(pattern, ref->name))
107                         continue;
108                 if (show_symref_target && ref->symref)
109                         printf("ref: %s\t%s\n", ref->symref, ref->name);
110                 printf("%s\t%s\n", oid_to_hex(&ref->old_oid), ref->name);
111                 status = 0; /* we found something */
112         }
113         return status;
114 }