Read system remotes from /etc/xdg-app/remotes.d/*.conf

Makefile.am

@@ -28,6 +28,7 @@ XDG_APP_BINDIR=$(bindir)
 AM_CPPFLAGS =						\
 	-DXDG_APP_BINDIR=\"$(XDG_APP_BINDIR)\"		\
 	-DXDG_APP_SYSTEMDIR=\"$(localstatedir)/lib/xdg-app\"\
+	-DXDG_APP_CONFIGDIR=\"$(sysconfdir)/xdg-app\"\
 	-DXDG_APP_BASEDIR=\"$(pkgdatadir)\"		\
 	-DXDG_APP_TRIGGERDIR=\"$(pkgdatadir)/triggers\" \
 	-DSYSTEM_FONTS_DIR=\"$(SYSTEM_FONTS_DIR)\"	\

common/xdg-app-dir.c

@@ -625,7 +625,12 @@ xdg_app_dir_ensure_repo (XdgAppDir *self,
         goto out;
 
       repodir = g_file_get_child (self->basedir, "repo");
-      repo = ostree_repo_new (repodir);
+      if (self->user)
+        repo = ostree_repo_new (repodir);
+      else
+        repo = g_object_new (OSTREE_TYPE_REPO, "path", repodir,
+                             "remotes-config-dir", XDG_APP_CONFIGDIR "/remotes.d",
+                             NULL);
 
       if (!g_file_query_exists (repodir, cancellable))
         {