builtin/ls-remote.c

   1 #include "builtin.h"
   2 #include "cache.h"
   3 #include "transport.h"
   4 #include "remote.h"
   5 #include "refs.h"
   6
   7 static const char * const ls_remote_usage[] = {
   8         N_("git ls-remote [--heads] [--tags] [--refs] [--upload-pack=<exec>]\n"
   9            "                     [-q | --quiet] [--exit-code] [--get-url]\n"
  10            "                     [--symref] [<repository> [<refs>...]]"),
  11         NULL
  12 };
  13
  14 /*
  15  * Is there one among the list of patterns that match the tail part
  16  * of the path?
  17  */
  18 static int tail_match(const char **pattern, const char *path)
  19 {
  20         const char *p;
  21         char *pathbuf;
  22
  23         if (!pattern)
  24                 return 1; /* no restriction */
  25
  26         pathbuf = xstrfmt("/%s", path);
  27         while ((p = *(pattern++)) != NULL) {
  28                 if (!wildmatch(p, pathbuf, 0)) {
  29                         free(pathbuf);
  30                         return 1;
  31                 }
  32         }
  33         free(pathbuf);
  34         return 0;
  35 }
  36
  37 int cmd_ls_remote(int argc, const char **argv, const char *prefix)
  38 {
  39         const char *dest = NULL;
  40         unsigned flags = 0;
  41         int get_url = 0;
  42         int quiet = 0;
  43         int status = 0;
  44         int show_symref_target = 0;
  45         const char *uploadpack = NULL;
  46         const char **pattern = NULL;
  47         struct argv_array ref_prefixes = ARGV_ARRAY_INIT;
  48
  49         struct remote *remote;
  50         struct transport *transport;
  51         const struct ref *ref;
  52
  53         struct option options[] = {
  54                 OPT__QUIET(&quiet, N_("do not print remote URL")),
  55                 OPT_STRING(0, "upload-pack", &uploadpack, N_("exec"),
  56                            N_("path of git-upload-pack on the remote host")),
  57                 { OPTION_STRING, 0, "exec", &uploadpack, N_("exec"),
  58                            N_("path of git-upload-pack on the remote host"),
  59                            PARSE_OPT_HIDDEN },
  60                 OPT_BIT('t', "tags", &flags, N_("limit to tags"), REF_TAGS),
  61                 OPT_BIT('h', "heads", &flags, N_("limit to heads"), REF_HEADS),
  62                 OPT_BIT(0, "refs", &flags, N_("do not show peeled tags"), REF_NORMAL),
  63                 OPT_BOOL(0, "get-url", &get_url,
  64                          N_("take url.<base>.insteadOf into account")),
  65                 OPT_SET_INT_F(0, "exit-code", &status,
  66                               N_("exit with exit code 2 if no matching refs are found"),
  67                               2, PARSE_OPT_NOCOMPLETE),
  68                 OPT_BOOL(0, "symref", &show_symref_target,
  69                          N_("show underlying ref in addition to the object pointed by it")),
  70                 OPT_END()
  71         };
  72
  73         argc = parse_options(argc, argv, prefix, options, ls_remote_usage,
  74                              PARSE_OPT_STOP_AT_NON_OPTION);
  75         dest = argv[0];
  76
  77         if (argc > 1) {
  78                 int i;
  79                 pattern = xcalloc(argc, sizeof(const char *));
  80                 for (i = 1; i < argc; i++) {
  81                         const char *glob;
  82                         pattern[i - 1] = xstrfmt("*/%s", argv[i]);
  83
  84                         glob = strchr(argv[i], '*');
  85                         if (glob)
  86                                 argv_array_pushf(&ref_prefixes, "%.*s",
  87                                                  (int)(glob - argv[i]), argv[i]);
  88                         else
  89                                 expand_ref_prefix(&ref_prefixes, argv[i]);
  90                 }
  91         }
  92
  93         remote = remote_get(dest);
  94         if (!remote) {
  95                 if (dest)
  96                         die("bad repository '%s'", dest);
  97                 die("No remote configured to list refs from.");
  98         }
  99         if (!remote->url_nr)
 100                 die("remote %s has no configured URL", dest);
 101
 102         if (get_url) {
 103                 printf("%s\n", *remote->url);
 104                 return 0;
 105         }
 106
 107         transport = transport_get(remote, NULL);
 108         if (uploadpack != NULL)
 109                 transport_set_option(transport, TRANS_OPT_UPLOADPACK, uploadpack);
 110
 111         ref = transport_get_remote_refs(transport, &ref_prefixes);
 112         if (transport_disconnect(transport))
 113                 return 1;
 114
 115         if (!dest && !quiet)
 116                 fprintf(stderr, "From %s\n", *remote->url);
 117         for ( ; ref; ref = ref->next) {
 118                 if (!check_ref_type(ref, flags))
 119                         continue;
 120                 if (!tail_match(pattern, ref->name))
 121                         continue;
 122                 if (show_symref_target && ref->symref)
 123                         printf("ref: %s\t%s\n", ref->symref, ref->name);
 124                 printf("%s\t%s\n", oid_to_hex(&ref->old_oid), ref->name);
 125                 status = 0; /* we found something */
 126         }
 127         return status;
 128 }