Merge branch 'jc/maint-fetch-alt'

* jc/maint-fetch-alt:
  fetch-pack: objects in our alternates are available to us
  refs_from_alternate: helper to use refs from alternates

Conflicts:
	builtin/receive-pack.c

2 files changed, 15 insertions, 32 deletions

diff --git a/builtin/fetch-pack.c b/builtin/fetch-pack.c
index ef398620a..28d6900bb 100644
--- a/builtin/fetch-pack.c
+++ b/builtin/fetch-pack.c
@@ -9,6 +9,7 @@
 #include "fetch-pack.h"
 #include "remote.h"
 #include "run-command.h"
+#include "transport.h"
 
 static int transfer_unpack_limit = -1;
 static int fetch_unpack_limit = -1;
@@ -217,6 +218,16 @@ static void send_request(int fd, struct strbuf *buf)
 		safe_write(fd, buf->buf, buf->len);
 }
 
+static void insert_one_alternate_ref(const struct ref *ref, void *unused)
+{
+	rev_list_insert_ref(NULL, ref->old_sha1, 0, NULL);
+}
+
+static void insert_alternate_refs(void)
+{
+	foreach_alt_odb(refs_from_alternate_cb, insert_one_alternate_ref);
+}
+
 static int find_common(int fd[2], unsigned char *result_sha1,
 		       struct ref *refs)
 {
@@ -235,6 +246,7 @@ static int find_common(int fd[2], unsigned char *result_sha1,
 	marked = 1;
 
 	for_each_ref(rev_list_insert_ref, NULL);
+	insert_alternate_refs();
 
 	fetching = 0;
 	for ( ; refs ; refs = refs->next) {
diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c
index d8e2c5fca..27050e7c1 100644
--- a/builtin/receive-pack.c
+++ b/builtin/receive-pack.c
@@ -731,43 +731,14 @@ static int delete_only(struct command *commands)
 	return 1;
 }
 
-static int add_refs_from_alternate(struct alternate_object_database *e, void *unused)
+static void add_one_alternate_ref(const struct ref *ref, void *unused)
 {
-	char *other;
-	size_t len;
-	struct remote *remote;
-	struct transport *transport;
-	const struct ref *extra;
-
-	e->name[-1] = '\0';
-	other = xstrdup(real_path(e->base));
-	e->name[-1] = '/';
-	len = strlen(other);
-
-	while (other[len-1] == '/')
-		other[--len] = '\0';
-	if (len < 8 || memcmp(other + len - 8, "/objects", 8))
-		return 0;
-	/* Is this a git repository with refs? */
-	memcpy(other + len - 8, "/refs", 6);
-	if (!is_directory(other))
-		return 0;
-	other[len - 8] = '\0';
-	remote = remote_get(other);
-	transport = transport_get(remote, other);
-	for (extra = transport_get_remote_refs(transport);
-	     extra;
-	     extra = extra->next) {
-		add_extra_ref(".have", extra->old_sha1, 0);
-	}
-	transport_disconnect(transport);
-	free(other);
-	return 0;
+	add_extra_ref(".have", ref->old_sha1, 0);
 }
 
 static void add_alternate_refs(void)
 {
-	foreach_alt_odb(add_refs_from_alternate, NULL);
+	foreach_alt_odb(refs_from_alternate_cb, add_one_alternate_ref);
 }
 
 int cmd_receive_pack(int argc, const char **argv, const char *prefix)