remote-curl.c

   1 #include "cache.h"
   2 #include "remote.h"
   3 #include "strbuf.h"
   4 #include "walker.h"
   5 #include "http.h"
   6 #include "exec_cmd.h"
   7
   8 static struct ref *get_refs(struct walker *walker, const char *url)
   9 {
  10         struct strbuf buffer = STRBUF_INIT;
  11         char *data, *start, *mid;
  12         char *ref_name;
  13         char *refs_url;
  14         int i = 0;
  15         int http_ret;
  16
  17         struct ref *refs = NULL;
  18         struct ref *ref = NULL;
  19         struct ref *last_ref = NULL;
  20
  21         refs_url = xmalloc(strlen(url) + 11);
  22         sprintf(refs_url, "%s/info/refs", url);
  23
  24         http_ret = http_get_strbuf(refs_url, &buffer, HTTP_NO_CACHE);
  25         switch (http_ret) {
  26         case HTTP_OK:
  27                 break;
  28         case HTTP_MISSING_TARGET:
  29                 die("%s not found: did you run git update-server-info on the"
  30                     " server?", refs_url);
  31         default:
  32                 http_error(refs_url, http_ret);
  33                 die("HTTP request failed");
  34         }
  35
  36         data = buffer.buf;
  37         start = NULL;
  38         mid = data;
  39         while (i < buffer.len) {
  40                 if (!start) {
  41                         start = &data[i];
  42                 }
  43                 if (data[i] == '\t')
  44                         mid = &data[i];
  45                 if (data[i] == '\n') {
  46                         data[i] = 0;
  47                         ref_name = mid + 1;
  48                         ref = xmalloc(sizeof(struct ref) +
  49                                       strlen(ref_name) + 1);
  50                         memset(ref, 0, sizeof(struct ref));
  51                         strcpy(ref->name, ref_name);
  52                         get_sha1_hex(start, ref->old_sha1);
  53                         if (!refs)
  54                                 refs = ref;
  55                         if (last_ref)
  56                                 last_ref->next = ref;
  57                         last_ref = ref;
  58                         start = NULL;
  59                 }
  60                 i++;
  61         }
  62
  63         strbuf_release(&buffer);
  64
  65         ref = alloc_ref("HEAD");
  66         if (!walker->fetch_ref(walker, ref) &&
  67             !resolve_remote_symref(ref, refs)) {
  68                 ref->next = refs;
  69                 refs = ref;
  70         } else {
  71                 free(ref);
  72         }
  73
  74         strbuf_release(&buffer);
  75         free(refs_url);
  76         return refs;
  77 }
  78
  79 int main(int argc, const char **argv)
  80 {
  81         struct remote *remote;
  82         struct strbuf buf = STRBUF_INIT;
  83         const char *url;
  84         struct walker *walker = NULL;
  85         int nongit;
  86
  87         git_extract_argv0_path(argv[0]);
  88         setup_git_directory_gently(&nongit);
  89         if (argc < 2) {
  90                 fprintf(stderr, "Remote needed\n");
  91                 return 1;
  92         }
  93
  94         remote = remote_get(argv[1]);
  95
  96         if (argc > 2) {
  97                 url = argv[2];
  98         } else {
  99                 url = remote->url[0];
 100         }
 101
 102         do {
 103                 if (strbuf_getline(&buf, stdin, '\n') == EOF)
 104                         break;
 105                 if (!prefixcmp(buf.buf, "fetch ")) {
 106                         char *obj = buf.buf + strlen("fetch ");
 107                         if (nongit)
 108                                 die("Fetch attempted without a local repo");
 109                         if (!walker)
 110                                 walker = get_http_walker(url, remote);
 111                         walker->get_all = 1;
 112                         walker->get_tree = 1;
 113                         walker->get_history = 1;
 114                         walker->get_verbosely = 0;
 115                         walker->get_recover = 0;
 116                         if (walker_fetch(walker, 1, &obj, NULL, NULL))
 117                                 die("Fetch failed.");
 118                         printf("\n");
 119                         fflush(stdout);
 120                 } else if (!strcmp(buf.buf, "list")) {
 121                         struct ref *refs;
 122                         struct ref *posn;
 123                         if (!walker)
 124                                 walker = get_http_walker(url, remote);
 125                         refs = get_refs(walker, url);
 126                         for (posn = refs; posn; posn = posn->next) {
 127                                 if (posn->symref)
 128                                         printf("@%s %s\n", posn->symref, posn->name);
 129                                 else
 130                                         printf("%s %s\n", sha1_to_hex(posn->old_sha1), posn->name);
 131                         }
 132                         printf("\n");
 133                         fflush(stdout);
 134                 } else if (!strcmp(buf.buf, "capabilities")) {
 135                         printf("fetch\n");
 136                         printf("\n");
 137                         fflush(stdout);
 138                 } else {
 139                         return 1;
 140                 }
 141                 strbuf_reset(&buf);
 142         } while (1);
 143         return 0;
 144 }