Add HTTP transport skeleton

Signed-off-by: Carlos Martín Nieto <carlos@cmartin.tk>

src/transport-http.c

+/*
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2,
+ * as published by the Free Software Foundation.
+ *
+ * In addition to the permissions in the GNU General Public License,
+ * the authors give you unlimited permission to link the compiled
+ * version of this file into combinations with other programs,
+ * and to distribute those combinations without any restriction
+ * coming from the use of this file.  (The General Public License
+ * restrictions do apply in other respects; for example, they cover
+ * modification of the file, and distribution when not linked into
+ * a combined executable.)
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include <stdlib.h>
+
+#include "transport.h"
+#include "common.h"
+
+typedef struct {
+	git_transport parent;
+} transport_http;
+
+static void http_free(git_transport *transport)
+{
+	transport_http *t = (transport_http *) transport;
+
+	free(t);
+}
+
+
+int git_transport_http(git_transport **out)
+{
+	transport_http *t;
+
+	t = git__malloc(sizeof(transport_http));
+	if (t == NULL)
+		return GIT_ENOMEM;
+
+	memset(t, 0x0, sizeof(transport_http));
+
+	t->parent.free = http_free;
+
+	*out = (git_transport *) t;
+
+	return GIT_SUCCESS;
+}

src/transport.c

@@ -9,7 +9,7 @@ struct {
 	git_transport_cb fn;
 } transports[] = {
 	{"git://", git_transport_git},
-	{"http://", git_transport_dummy},
+	{"http://", git_transport_http},
 	{"https://", git_transport_dummy},
 	{"file://", git_transport_local},
 	{"git+ssh://", git_transport_dummy},

src/transport.h

@@ -101,6 +101,7 @@ struct git_transport {
 
 int git_transport_local(struct git_transport **transport);
 int git_transport_git(struct git_transport **transport);
+int git_transport_http(struct git_transport **transport);
 int git_transport_dummy(struct git_transport **transport);
 
 #endif