Add a delete-repo command

A natural counterpart to add-repo.

Makefile.am

@@ -16,6 +16,7 @@ xdg_app_SOURCES = \
 	xdg-app-main.c \
 	xdg-app-builtins.h \
 	xdg-app-builtins-add-repo.c \
+	xdg-app-builtins-delete-repo.c \
 	xdg-app-builtins-install.c \
 	xdg-app-builtins-update.c \
 	xdg-app-builtins-run.c \

xdg-app-builtins-delete-repo.c

@@ -0,0 +1,53 @@
+#include "config.h"
+
+#include <locale.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "libgsystem.h"
+
+#include "xdg-app-builtins.h"
+
+static void
+usage_error (GOptionContext *context, const char *message, GError **error)
+{
+  gs_free gchar *help = g_option_context_get_help (context, TRUE, NULL);
+  g_printerr ("%s", help);
+  g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED, message);
+}
+
+gboolean
+xdg_app_builtin_delete_repo (int argc, char **argv, GCancellable *cancellable, GError **error)
+{
+  GOptionContext *context;
+  gboolean ret = FALSE;
+  gs_unref_object XdgAppDir *dir = NULL;
+  const char *remote_name;
+
+  context = g_option_context_new ("NAME - Delete a remote repository");
+
+  if (!xdg_app_option_context_parse (context, NULL, &argc, &argv, 0, &dir, cancellable, error))
+    goto out;
+
+  if (argc < 2)
+    {
+      usage_error (context, "NAME must be specified", error);
+      goto out;
+    }
+
+  remote_name = argv[1];
+
+  if (!ostree_repo_remote_change (xdg_app_dir_get_repo (dir), NULL,
+                                  OSTREE_REPO_REMOTE_CHANGE_DELETE,
+                                  remote_name, NULL,
+                                  NULL,
+                                  cancellable, error))
+    goto out;
+
+  ret = TRUE;
+
+ out:
+  if (context)
+    g_option_context_free (context);
+  return ret;
+}

xdg-app-builtins.h

@@ -25,6 +25,7 @@ gboolean xdg_app_option_context_parse (GOptionContext *context,
 #define BUILTINPROTO(name) gboolean xdg_app_builtin_ ## name (int argc, char **argv, GCancellable *cancellable, GError **error)
 
 BUILTINPROTO(add_repo);
+BUILTINPROTO(delete_repo);
 BUILTINPROTO(install_runtime);
 BUILTINPROTO(update_runtime);
 BUILTINPROTO(install_app);

xdg-app-main.c

@@ -20,6 +20,7 @@ typedef struct {
 
 static XdgAppCommand commands[] = {
   { "add-repo", xdg_app_builtin_add_repo },
+  { "delete-repo", xdg_app_builtin_delete_repo },
   { "install-runtime", xdg_app_builtin_install_runtime },
   { "update-runtime", xdg_app_builtin_update_runtime },
   { "install-app", xdg_app_builtin_install_app },