config: Introduce functions to write non-standard file

diff --git a/transport.c b/transport.c
index 69dae711037ea7a54d86910932d74ac2b24b57fd..c9c8056f9de69bd378cd271d70363b5560f13e07 100644 (file)
--- a/transport.c
+++ b/transport.c
@@ -1190,14 +1190,20 @@ char *transport_anonymize_url(const char *url)
        return xstrdup(url);
 }
 
-int refs_from_alternate_cb(struct alternate_object_database *e, void *cb)
+struct alternate_refs_data {
+       alternate_ref_fn *fn;
+       void *data;
+};
+
+static int refs_from_alternate_cb(struct alternate_object_database *e,
+                                 void *data)
 {
        char *other;
        size_t len;
        struct remote *remote;
        struct transport *transport;
        const struct ref *extra;
-       alternate_ref_fn *ref_fn = cb;
+       struct alternate_refs_data *cb = data;
 
        e->name[-1] = '\0';
        other = xstrdup(real_path(e->base));
@@ -1218,8 +1224,16 @@ int refs_from_alternate_cb(struct alternate_object_database *e, void *cb)
        for (extra = transport_get_remote_refs(transport);
             extra;
             extra = extra->next)
-               ref_fn(extra, NULL);
+               cb->fn(extra, cb->data);
        transport_disconnect(transport);
        free(other);
        return 0;
 }
+
+void for_each_alternate_ref(alternate_ref_fn fn, void *data)
+{
+       struct alternate_refs_data cb;
+       cb.fn = fn;
+       cb.data = data;
+       foreach_alt_odb(refs_from_alternate_cb, &cb);
+}