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(0, "exit-code", &status,
  64                             N_("exit with exit code 2 if no matching refs are found"), 2),
  65                 OPT_BOOL(0, "symref", &show_symref_target,
  66                          N_("show underlying ref in addition to the object pointed by it")),
  67                 OPT_END()
  68         };
  69
  70         argc = parse_options(argc, argv, prefix, options, ls_remote_usage,
  71                              PARSE_OPT_STOP_AT_NON_OPTION);
  72         dest = argv[0];
  73
  74         if (argc > 1) {
  75                 int i;
  76                 pattern = xcalloc(argc, sizeof(const char *));
  77                 for (i = 1; i < argc; i++)
  78                         pattern[i - 1] = xstrfmt("*/%s", argv[i]);
  79         }
  80
  81         remote = remote_get(dest);
  82         if (!remote) {
  83                 if (dest)
  84                         die("bad repository '%s'", dest);
  85                 die("No remote configured to list refs from.");
  86         }
  87         if (!remote->url_nr)
  88                 die("remote %s has no configured URL", dest);
  89
  90         if (get_url) {
  91                 printf("%s\n", *remote->url);
  92                 return 0;
  93         }
  94
  95         transport = transport_get(remote, NULL);
  96         if (uploadpack != NULL)
  97                 transport_set_option(transport, TRANS_OPT_UPLOADPACK, uploadpack);
  98
  99         ref = transport_get_remote_refs(transport);
 100         if (transport_disconnect(transport))
 101                 return 1;
 102
 103         if (!dest && !quiet)
 104                 fprintf(stderr, "From %s\n", *remote->url);
 105         for ( ; ref; ref = ref->next) {
 106                 if (!check_ref_type(ref, flags))
 107                         continue;
 108                 if (!tail_match(pattern, ref->name))
 109                         continue;
 110                 if (show_symref_target && ref->symref)
 111                         printf("ref: %s\t%s\n", ref->symref, ref->name);
 112                 printf("%s\t%s\n", oid_to_hex(&ref->old_oid), ref->name);
 113                 status = 0; /* we found something */
 114         }
 115         return status;
 116 }