src/transport.c

   1 /*
   2  * Copyright (C) 2009-2011 the libgit2 contributors
   3  *
   4  * This file is part of libgit2, distributed under the GNU GPL v2 with
   5  * a Linking Exception. For full terms see the included COPYING file.
   6  */
   7 #include "common.h"
   8 #include "git2/types.h"
   9 #include "git2/transport.h"
  10 #include "git2/net.h"
  11 #include "transport.h"
  12
  13 struct {
  14         char *prefix;
  15         git_transport_cb fn;
  16 } transports[] = {
  17         {"git://", git_transport_git},
  18         {"http://", git_transport_http},
  19         {"https://", git_transport_dummy},
  20         {"file://", git_transport_local},
  21         {"git+ssh://", git_transport_dummy},
  22         {"ssh+git://", git_transport_dummy},
  23         {NULL, 0}
  24 };
  25
  26 static git_transport_cb transport_new_fn(const char *url)
  27 {
  28         int i = 0;
  29
  30         while (1) {
  31                 if (transports[i].prefix == NULL)
  32                         break;
  33
  34                 if (!strncasecmp(url, transports[i].prefix, strlen(transports[i].prefix)))
  35                         return transports[i].fn;
  36
  37                 ++i;
  38         }
  39
  40         /*
  41          * If we still haven't found the transport, we assume we mean a
  42          * local file.
  43          * TODO: Parse "example.com:project.git" as an SSH URL
  44          */
  45         return git_transport_local;
  46 }
  47
  48 /**************
  49  * Public API *
  50  **************/
  51
  52 int git_transport_dummy(git_transport **GIT_UNUSED(transport))
  53 {
  54         GIT_UNUSED_ARG(transport);
  55         return git__throw(GIT_ENOTIMPLEMENTED, "This protocol isn't implemented. Sorry");
  56 }
  57
  58 int git_transport_new(git_transport **out, const char *url)
  59 {
  60         git_transport_cb fn;
  61         git_transport *transport;
  62         int error;
  63
  64         fn = transport_new_fn(url);
  65
  66         error = fn(&transport);
  67         if (error < GIT_SUCCESS)
  68                 return git__rethrow(error, "Failed to create new transport");
  69
  70         transport->url = git__strdup(url);
  71         if (transport->url == NULL)
  72                 return GIT_ENOMEM;
  73
  74         *out = transport;
  75
  76         return GIT_SUCCESS;
  77 }