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