Add bundle transport

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/transport.c b/transport.c
index 1e7374977e041cc4f3423f4c84686723929b36f1..e0111dcf0b90e6d284505dd819144e5955cad699 100644 (file)
--- a/transport.c
+++ b/transport.c
@@ -5,6 +5,7 @@
 #include "pkt-line.h"
 #include "fetch-pack.h"
 #include "walker.h"
+#include "bundle.h"
 
 /* Generic functions for using commit walkers */
 
@@ -184,7 +185,55 @@ static const struct transport_ops curl_transport = {
        /* disconnect */        disconnect_walker
 };
 
+struct bundle_transport_data {
+       int fd;
+       struct bundle_header header;
+};
+
+static struct ref *get_refs_from_bundle(const struct transport *transport)
+{
+       struct bundle_transport_data *data = transport->data;
+       struct ref *result = NULL;
+       int i;
+
+       if (data->fd > 0)
+               close(data->fd);
+       data->fd = read_bundle_header(transport->url, &data->header);
+       if (data->fd < 0)
+               die ("Could not read bundle '%s'.", transport->url);
+       for (i = 0; i < data->header.references.nr; i++) {
+               struct ref_list_entry *e = data->header.references.list + i;
+               struct ref *ref = alloc_ref(strlen(e->name));
+               hashcpy(ref->old_sha1, e->sha1);
+               strcpy(ref->name, e->name);
+               ref->next = result;
+               result = ref;
+       }
+       return result;
+}
+
+static int fetch_refs_from_bundle(const struct transport *transport,
+                              int nr_heads, char **heads)
+{
+       struct bundle_transport_data *data = transport->data;
+       return unbundle(&data->header, data->fd);
+}
+
+static int close_bundle(struct transport *transport)
+{
+       struct bundle_transport_data *data = transport->data;
+       if (data->fd > 0)
+               close(data->fd);
+       return 0;
+}
+
 static const struct transport_ops bundle_transport = {
+       /* set_option */        NULL,
+       /* get_refs_list */     get_refs_from_bundle,
+       /* fetch_refs */        fetch_refs_from_bundle,
+       /* fetch_objs */        NULL,
+       /* push */              NULL,
+       /* disconnect */        close_bundle
 };
 
 struct git_transport_data {
@@ -367,8 +416,9 @@ struct transport *transport_get(struct remote *remote, const char *url,
                else
                        ret->data = NULL;
        } else if (is_local(url) && is_file(url)) {
+               struct bundle_transport_data *data = xcalloc(1, sizeof(*data));
                ret = xmalloc(sizeof(*ret));
-               ret->data = NULL;
+               ret->data = data;
                ret->ops = &bundle_transport;
        } else {
                struct git_transport_data *data = xcalloc(1, sizeof(*data));