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 ls_remote_usage[] =
   7 "git ls-remote [--heads] [--tags]  [-u <exec> | --upload-pack <exec>]\n"
   8 "                     [-q|--quiet] [<repository> [<refs>...]]";
   9
  10 /*
  11  * Is there one among the list of patterns that match the tail part
  12  * of the path?
  13  */
  14 static int tail_match(const char **pattern, const char *path)
  15 {
  16         const char *p;
  17         char pathbuf[PATH_MAX];
  18
  19         if (!pattern)
  20                 return 1; /* no restriction */
  21
  22         if (snprintf(pathbuf, sizeof(pathbuf), "/%s", path) > sizeof(pathbuf))
  23                 return error("insanely long ref %.*s...", 20, path);
  24         while ((p = *(pattern++)) != NULL) {
  25                 if (!fnmatch(p, pathbuf, 0))
  26                         return 1;
  27         }
  28         return 0;
  29 }
  30
  31 int cmd_ls_remote(int argc, const char **argv, const char *prefix)
  32 {
  33         int i;
  34         const char *dest = NULL;
  35         int nongit;
  36         unsigned flags = 0;
  37         int quiet = 0;
  38         const char *uploadpack = NULL;
  39         const char **pattern = NULL;
  40
  41         struct remote *remote;
  42         struct transport *transport;
  43         const struct ref *ref;
  44
  45         setup_git_directory_gently(&nongit);
  46
  47         for (i = 1; i < argc; i++) {
  48                 const char *arg = argv[i];
  49
  50                 if (*arg == '-') {
  51                         if (!prefixcmp(arg, "--upload-pack=")) {
  52                                 uploadpack = arg + 14;
  53                                 continue;
  54                         }
  55                         if (!prefixcmp(arg, "--exec=")) {
  56                                 uploadpack = arg + 7;
  57                                 continue;
  58                         }
  59                         if (!strcmp("--tags", arg) || !strcmp("-t", arg)) {
  60                                 flags |= REF_TAGS;
  61                                 continue;
  62                         }
  63                         if (!strcmp("--heads", arg) || !strcmp("-h", arg)) {
  64                                 flags |= REF_HEADS;
  65                                 continue;
  66                         }
  67                         if (!strcmp("--refs", arg)) {
  68                                 flags |= REF_NORMAL;
  69                                 continue;
  70                         }
  71                         if (!strcmp("--quiet", arg) || !strcmp("-q", arg)) {
  72                                 quiet = 1;
  73                                 continue;
  74                         }
  75                         usage(ls_remote_usage);
  76                 }
  77                 dest = arg;
  78                 i++;
  79                 break;
  80         }
  81
  82         if (argv[i]) {
  83                 int j;
  84                 pattern = xcalloc(sizeof(const char *), argc - i + 1);
  85                 for (j = i; j < argc; j++) {
  86                         int len = strlen(argv[j]);
  87                         char *p = xmalloc(len + 3);
  88                         sprintf(p, "*/%s", argv[j]);
  89                         pattern[j - i] = p;
  90                 }
  91         }
  92         remote = remote_get(dest);
  93         if (!remote) {
  94                 if (dest)
  95                         die("bad repository '%s'", dest);
  96                 die("No remote configured to list refs from.");
  97         }
  98         if (!remote->url_nr)
  99                 die("remote %s has no configured URL", dest);
 100         transport = transport_get(remote, NULL);
 101         if (uploadpack != NULL)
 102                 transport_set_option(transport, TRANS_OPT_UPLOADPACK, uploadpack);
 103
 104         ref = transport_get_remote_refs(transport);
 105         if (transport_disconnect(transport))
 106                 return 1;
 107
 108         if (!dest && !quiet)
 109                 fprintf(stderr, "From %s\n", *remote->url);
 110         for ( ; ref; ref = ref->next) {
 111                 if (!check_ref_type(ref, flags))
 112                         continue;
 113                 if (!tail_match(pattern, ref->name))
 114                         continue;
 115                 printf("%s      %s\n", sha1_to_hex(ref->old_sha1), ref->name);
 116         }
 117         return 0;
 118 }