git/peek-remote.c

   1 #include "cache.h"
   2 #include "refs.h"
   3 #include "pkt-line.h"
   4
   5 static const char peek_remote_usage[] =
   6 "git-peek-remote [--upload-pack=<git-upload-pack>] [<host>:]<directory>";
   7 static const char *uploadpack = "git-upload-pack";
   8
   9 static int peek_remote(int fd[2], unsigned flags)
  10 {
  11         struct ref *ref;
  12
  13         get_remote_heads(fd[0], &ref, 0, NULL, flags);
  14         packet_flush(fd[1]);
  15
  16         while (ref) {
  17                 printf("%s      %s\n", sha1_to_hex(ref->old_sha1), ref->name);
  18                 ref = ref->next;
  19         }
  20         return 0;
  21 }
  22
  23 int main(int argc, char **argv)
  24 {
  25         int i, ret;
  26         char *dest = NULL;
  27         int fd[2];
  28         pid_t pid;
  29         int nongit = 0;
  30         unsigned flags = 0;
  31
  32         setup_git_directory_gently(&nongit);
  33
  34         for (i = 1; i < argc; i++) {
  35                 char *arg = argv[i];
  36
  37                 if (*arg == '-') {
  38                         if (!prefixcmp(arg, "--upload-pack=")) {
  39                                 uploadpack = arg + 14;
  40                                 continue;
  41                         }
  42                         if (!prefixcmp(arg, "--exec=")) {
  43                                 uploadpack = arg + 7;
  44                                 continue;
  45                         }
  46                         if (!strcmp("--tags", arg)) {
  47                                 flags |= REF_TAGS;
  48                                 continue;
  49                         }
  50                         if (!strcmp("--heads", arg)) {
  51                                 flags |= REF_HEADS;
  52                                 continue;
  53                         }
  54                         if (!strcmp("--refs", arg)) {
  55                                 flags |= REF_NORMAL;
  56                                 continue;
  57                         }
  58                         usage(peek_remote_usage);
  59                 }
  60                 dest = arg;
  61                 break;
  62         }
  63
  64         if (!dest || i != argc - 1)
  65                 usage(peek_remote_usage);
  66
  67         pid = git_connect(fd, dest, uploadpack, 0);
  68         if (pid < 0)
  69                 return 1;
  70         ret = peek_remote(fd, flags);
  71         close(fd[0]);
  72         close(fd[1]);
  73         ret |= finish_connect(pid);
  74         return !!ret;
  75 }