compat: Add simplified merge sort implementation from glibc

diff --git a/transport.h b/transport.h
index 3e332ff53ad95fb47fc39aea5ca1ae479d92672b..6fb4526cda5fc1ee1178fdf1d0840c90b88aa26c 100644 (file)
--- a/transport.h
+++ b/transport.h
@@ -8,7 +8,7 @@ struct transport {
        struct remote *remote;
        const char *url;
        void *data;
-       struct ref *remote_refs;
+       const struct ref *remote_refs;
 
        /**
         * Returns 0 if successful, positive if the option is not
@@ -18,17 +18,20 @@ struct transport {
        int (*set_option)(struct transport *connection, const char *name,
                          const char *value);
 
-       struct ref *(*get_refs_list)(const struct transport *transport);
+       struct ref *(*get_refs_list)(struct transport *transport);
        int (*fetch)(struct transport *transport, int refs_nr, struct ref **refs);
        int (*push)(struct transport *connection, int refspec_nr, const char **refspec, int flags);
 
        int (*disconnect)(struct transport *connection);
        char *pack_lockfile;
-       unsigned verbose : 1;
+       signed verbose : 2;
 };
 
 #define TRANSPORT_PUSH_ALL 1
 #define TRANSPORT_PUSH_FORCE 2
+#define TRANSPORT_PUSH_DRY_RUN 4
+#define TRANSPORT_PUSH_MIRROR 8
+#define TRANSPORT_PUSH_VERBOSE 16
 
 /* Returns a transport suitable for the url */
 struct transport *transport_get(struct remote *, const char *);
@@ -47,9 +50,6 @@ struct transport *transport_get(struct remote *, const char *);
 /* Keep the pack that was transferred if not null */
 #define TRANS_OPT_KEEP "keep"
 
-/* Unpack the objects if fewer than this number of objects are fetched */
-#define TRANS_OPT_UNPACKLIMIT "unpacklimit"
-
 /* Limit the depth of the fetch if not null */
 #define TRANS_OPT_DEPTH "depth"
 
@@ -63,7 +63,7 @@ int transport_set_option(struct transport *transport, const char *name,
 int transport_push(struct transport *connection,
                   int refspec_nr, const char **refspec, int flags);
 
-struct ref *transport_get_remote_refs(struct transport *transport);
+const struct ref *transport_get_remote_refs(struct transport *transport);
 
 int transport_fetch_refs(struct transport *transport, struct ref *refs);
 void transport_unlock_pack(struct transport *transport);