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