Mark the list of refs to fetch as const

Fetching the objects doesn't actually modify the list in any of the
code paths, so this will allow code that fetches the entire (const)
list of available refs to just pass the list in directly.

Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/transport.c b/transport.c
index 393e0e8fe233ca51dc4c5db94c55e81ee53baa52..a3b805258f2d1403f6b5de96f94738f2337f0627 100644 (file)
--- a/transport.c
+++ b/transport.c
@@ -203,7 +203,7 @@ static struct ref *get_refs_via_rsync(struct transport *transport)
 }
 
 static int fetch_objs_via_rsync(struct transport *transport,
-                                int nr_objs, struct ref **to_fetch)
+                               int nr_objs, const struct ref **to_fetch)
 {
        struct strbuf buf = STRBUF_INIT;
        struct child_process rsync;
@@ -350,7 +350,7 @@ static int rsync_transport_push(struct transport *transport,
 
 #ifndef NO_CURL /* http fetch is the only user */
 static int fetch_objs_via_walker(struct transport *transport,
-                                int nr_objs, struct ref **to_fetch)
+                                int nr_objs, const struct ref **to_fetch)
 {
        char *dest = xstrdup(transport->url);
        struct walker *walker = transport->data;
@@ -504,7 +504,7 @@ static struct ref *get_refs_via_curl(struct transport *transport)
 }
 
 static int fetch_objs_via_curl(struct transport *transport,
-                                int nr_objs, struct ref **to_fetch)
+                                int nr_objs, const struct ref **to_fetch)
 {
        if (!transport->data)
                transport->data = get_http_walker(transport->url,
@@ -542,7 +542,7 @@ static struct ref *get_refs_from_bundle(struct transport *transport)
 }
 
 static int fetch_refs_from_bundle(struct transport *transport,
-                              int nr_heads, struct ref **to_fetch)
+                              int nr_heads, const struct ref **to_fetch)
 {
        struct bundle_transport_data *data = transport->data;
        return unbundle(&data->header, data->fd);
@@ -616,7 +616,7 @@ static struct ref *get_refs_via_connect(struct transport *transport)
 }
 
 static int fetch_refs_via_pack(struct transport *transport,
-                              int nr_heads, struct ref **to_fetch)
+                              int nr_heads, const struct ref **to_fetch)
 {
        struct git_transport_data *data = transport->data;
        char **heads = xmalloc(nr_heads * sizeof(*heads));
@@ -784,12 +784,12 @@ const struct ref *transport_get_remote_refs(struct transport *transport)
        return transport->remote_refs;
 }
 
-int transport_fetch_refs(struct transport *transport, struct ref *refs)
+int transport_fetch_refs(struct transport *transport, const struct ref *refs)
 {
        int rc;
        int nr_heads = 0, nr_alloc = 0;
-       struct ref **heads = NULL;
-       struct ref *rm;
+       const struct ref **heads = NULL;
+       const struct ref *rm;
 
        for (rm = refs; rm; rm = rm->next) {
                if (rm->peer_ref &&

diff --git a/transport.h b/transport.h
index 8abfc0ae60c18165b44ef93ed9115972b991e2dc..d0b52053fff9bc463438674232bffb6024f3b1fc 100644 (file)
--- a/transport.h
+++ b/transport.h
@@ -19,7 +19,7 @@ struct transport {
                          const char *value);
 
        struct ref *(*get_refs_list)(struct transport *transport);
-       int (*fetch)(struct transport *transport, int refs_nr, struct ref **refs);
+       int (*fetch)(struct transport *transport, int refs_nr, const struct ref **refs);
        int (*push)(struct transport *connection, int refspec_nr, const char **refspec, int flags);
 
        int (*disconnect)(struct transport *connection);
@@ -68,7 +68,7 @@ int transport_push(struct transport *connection,
 
 const struct ref *transport_get_remote_refs(struct transport *transport);
 
-int transport_fetch_refs(struct transport *transport, struct ref *refs);
+int transport_fetch_refs(struct transport *transport, const struct ref *refs);
 void transport_unlock_pack(struct transport *transport);
 int transport_disconnect(struct transport *transport);