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;
  21
  22         if (!pattern)
  23                 return 1; /* no restriction */
  24
  25         pathbuf = xstrfmt("/%s", path);
  26         while ((p = *(pattern++)) != NULL) {
  27                 if (!wildmatch(p, pathbuf, 0)) {
  28                         free(pathbuf);
  29                         return 1;
  30                 }
  31         }
  32         free(pathbuf);
  33         return 0;
  34 }
  35
  36 int cmd_ls_remote(int argc, const char **argv, const char *prefix)
  37 {
  38         const char *dest = NULL;
  39         unsigned flags = 0;
  40         int get_url = 0;
  41         int quiet = 0;
  42         int status = 0;
  43         int show_symref_target = 0;
  44         const char *uploadpack = NULL;
  45         const char **pattern = NULL;
  46
  47         struct remote *remote;
  48         struct transport *transport;
  49         const struct ref *ref;
  50
  51         struct option options[] = {
  52                 OPT__QUIET(&quiet, N_("do not print remote URL")),
  53                 OPT_STRING(0, "upload-pack", &uploadpack, N_("exec"),
  54                            N_("path of git-upload-pack on the remote host")),
  55                 { OPTION_STRING, 0, "exec", &uploadpack, N_("exec"),
  56                            N_("path of git-upload-pack on the remote host"),
  57                            PARSE_OPT_HIDDEN },
  58                 OPT_BIT('t', "tags", &flags, N_("limit to tags"), REF_TAGS),
  59                 OPT_BIT('h', "heads", &flags, N_("limit to heads"), REF_HEADS),
  60                 OPT_BIT(0, "refs", &flags, N_("do not show peeled tags"), REF_NORMAL),
  61                 OPT_BOOL(0, "get-url", &get_url,
  62                          N_("take url.<base>.insteadOf into account")),
  63                 OPT_SET_INT_F(0, "exit-code", &status,
  64                               N_("exit with exit code 2 if no matching refs are found"),
  65                               2, PARSE_OPT_NOCOMPLETE),
  66                 OPT_BOOL(0, "symref", &show_symref_target,
  67                          N_("show underlying ref in addition to the object pointed by it")),
  68                 OPT_END()
  69         };
  70
  71         argc = parse_options(argc, argv, prefix, options, ls_remote_usage,
  72                              PARSE_OPT_STOP_AT_NON_OPTION);
  73         dest = argv[0];
  74
  75         if (argc > 1) {
  76                 int i;
  77                 pattern = xcalloc(argc, sizeof(const char *));
  78                 for (i = 1; i < argc; i++)
  79                         pattern[i - 1] = xstrfmt("*/%s", argv[i]);
  80         }
  81
  82         remote = remote_get(dest);
  83         if (!remote) {
  84                 if (dest)
  85                         die("bad repository '%s'", dest);
  86                 die("No remote configured to list refs from.");
  87         }
  88         if (!remote->url_nr)
  89                 die("remote %s has no configured URL", dest);
  90
  91         if (get_url) {
  92                 printf("%s\n", *remote->url);
  93                 return 0;
  94         }
  95
  96         transport = transport_get(remote, NULL);
  97         if (uploadpack != NULL)
  98                 transport_set_option(transport, TRANS_OPT_UPLOADPACK, uploadpack);
  99
 100         ref = transport_get_remote_refs(transport);
 101         if (transport_disconnect(transport))
 102                 return 1;
 103
 104         if (!dest && !quiet)
 105                 fprintf(stderr, "From %s\n", *remote->url);
 106         for ( ; ref; ref = ref->next) {
 107                 if (!check_ref_type(ref, flags))
 108                         continue;
 109                 if (!tail_match(pattern, ref->name))
 110                         continue;
 111                 if (show_symref_target && ref->symref)
 112                         printf("ref: %s\t%s\n", ref->symref, ref->name);
 113                 printf("%s\t%s\n", oid_to_hex(&ref->old_oid), ref->name);
 114                 status = 0; /* we found something */
 115         }
 116         return status;
 117 }