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 remote *remote;
   9 static const char *url;
  10 static struct walker *walker;
  11
  12 static void init_walker(void)
  13 {
  14         if (!walker)
  15                 walker = get_http_walker(url, remote);
  16 }
  17
  18 static struct ref *get_refs(void)
  19 {
  20         struct strbuf buffer = STRBUF_INIT;
  21         char *data, *start, *mid;
  22         char *ref_name;
  23         char *refs_url;
  24         int i = 0;
  25         int http_ret;
  26
  27         struct ref *refs = NULL;
  28         struct ref *ref = NULL;
  29         struct ref *last_ref = NULL;
  30
  31         refs_url = xmalloc(strlen(url) + 11);
  32         sprintf(refs_url, "%s/info/refs", url);
  33
  34         init_walker();
  35         http_ret = http_get_strbuf(refs_url, &buffer, HTTP_NO_CACHE);
  36         switch (http_ret) {
  37         case HTTP_OK:
  38                 break;
  39         case HTTP_MISSING_TARGET:
  40                 die("%s not found: did you run git update-server-info on the"
  41                     " server?", refs_url);
  42         default:
  43                 http_error(refs_url, http_ret);
  44                 die("HTTP request failed");
  45         }
  46
  47         data = buffer.buf;
  48         start = NULL;
  49         mid = data;
  50         while (i < buffer.len) {
  51                 if (!start) {
  52                         start = &data[i];
  53                 }
  54                 if (data[i] == '\t')
  55                         mid = &data[i];
  56                 if (data[i] == '\n') {
  57                         data[i] = 0;
  58                         ref_name = mid + 1;
  59                         ref = xmalloc(sizeof(struct ref) +
  60                                       strlen(ref_name) + 1);
  61                         memset(ref, 0, sizeof(struct ref));
  62                         strcpy(ref->name, ref_name);
  63                         get_sha1_hex(start, ref->old_sha1);
  64                         if (!refs)
  65                                 refs = ref;
  66                         if (last_ref)
  67                                 last_ref->next = ref;
  68                         last_ref = ref;
  69                         start = NULL;
  70                 }
  71                 i++;
  72         }
  73
  74         strbuf_release(&buffer);
  75
  76         ref = alloc_ref("HEAD");
  77         if (!walker->fetch_ref(walker, ref) &&
  78             !resolve_remote_symref(ref, refs)) {
  79                 ref->next = refs;
  80                 refs = ref;
  81         } else {
  82                 free(ref);
  83         }
  84
  85         strbuf_release(&buffer);
  86         free(refs_url);
  87         return refs;
  88 }
  89
  90 int main(int argc, const char **argv)
  91 {
  92         struct strbuf buf = STRBUF_INIT;
  93
  94         git_extract_argv0_path(argv[0]);
  95         setup_git_directory();
  96         if (argc < 2) {
  97                 fprintf(stderr, "Remote needed\n");
  98                 return 1;
  99         }
 100
 101         remote = remote_get(argv[1]);
 102
 103         if (argc > 2) {
 104                 url = argv[2];
 105         } else {
 106                 url = remote->url[0];
 107         }
 108
 109         do {
 110                 if (strbuf_getline(&buf, stdin, '\n') == EOF)
 111                         break;
 112                 if (!prefixcmp(buf.buf, "fetch ")) {
 113                         char *obj = buf.buf + strlen("fetch ");
 114                         init_walker();
 115                         walker->get_all = 1;
 116                         walker->get_tree = 1;
 117                         walker->get_history = 1;
 118                         walker->get_verbosely = 0;
 119                         walker->get_recover = 0;
 120                         if (walker_fetch(walker, 1, &obj, NULL, NULL))
 121                                 die("Fetch failed.");
 122                         printf("\n");
 123                         fflush(stdout);
 124                 } else if (!strcmp(buf.buf, "list")) {
 125                         struct ref *refs = get_refs();
 126                         struct ref *posn;
 127                         for (posn = refs; posn; posn = posn->next) {
 128                                 if (posn->symref)
 129                                         printf("@%s %s\n", posn->symref, posn->name);
 130                                 else
 131                                         printf("%s %s\n", sha1_to_hex(posn->old_sha1), posn->name);
 132                         }
 133                         printf("\n");
 134                         fflush(stdout);
 135                 } else if (!strcmp(buf.buf, "capabilities")) {
 136                         printf("fetch\n");
 137                         printf("\n");
 138                         fflush(stdout);
 139                 } else {
 140                         return 1;
 141                 }
 142                 strbuf_reset(&buf);
 143         } while (1);
 144         return 0;
 145 }