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 }