gnome-shell/subprojects/extensions-tool/src/command-uninstall.c
Florian Müllner 62f3457a95 extensions-tool/uninstall: Error out for system extensions
UninstallExtensions() only returns whether the operation was successful,
not why it failed. However we know that only user extensions can be
uninstalled, so check that first to provide a more meaningful error.

https://gitlab.gnome.org/GNOME/gnome-shell/issues/2391
2020-04-05 13:42:50 +02:00

115 lines
3.1 KiB
C

/* commands-uninstall.c
*
* Copyright 2019 Florian Müllner <fmuellner@gnome.org>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* SPDX-License-Identifier: GPL-3.0-or-later
*/
#include <glib/gi18n.h>
#include <gio/gio.h>
#include "commands.h"
#include "common.h"
#include "config.h"
static gboolean
uninstall_extension (const char *uuid)
{
g_autoptr (GDBusProxy) proxy = NULL;
g_autoptr (GVariant) info = NULL;
g_autoptr (GVariant) response = NULL;
g_autoptr (GError) error = NULL;
gboolean success = FALSE;
double type;
proxy = get_shell_proxy (&error);
if (proxy == NULL)
return FALSE;
info = get_extension_property (proxy, uuid, "type");
if (info == NULL)
return FALSE;
type = g_variant_get_double (info);
if (type == TYPE_SYSTEM)
{
g_printerr (_("Cannot uninstall system extensions\n"));
return FALSE;
}
response = g_dbus_proxy_call_sync (proxy,
"UninstallExtension",
g_variant_new ("(s)", uuid),
0,
-1,
NULL,
&error);
g_variant_get (response, "(b)", &success);
if (!success)
g_printerr (_("Failed to uninstall “%s”\n"), uuid);
return success;
}
int
handle_uninstall (int argc, char *argv[], gboolean do_help)
{
g_autoptr (GOptionContext) context = NULL;
g_autoptr (GError) error = NULL;
g_auto(GStrv) uuids = NULL;
GOptionEntry entries[] = {
{ .long_name = G_OPTION_REMAINING,
.arg_description = "UUID",
.arg = G_OPTION_ARG_STRING_ARRAY, .arg_data = &uuids },
{ NULL }
};
g_set_prgname ("gnome-extensions uninstall");
context = g_option_context_new (NULL);
g_option_context_set_help_enabled (context, FALSE);
g_option_context_set_summary (context, _("Uninstall an extension"));
g_option_context_add_main_entries (context, entries, GETTEXT_PACKAGE);
g_option_context_add_group (context, get_option_group());
if (do_help)
{
show_help (context, NULL);
return 0;
}
if (!g_option_context_parse (context, &argc, &argv, &error))
{
show_help (context, error->message);
return 1;
}
if (uuids == NULL)
{
show_help (context, _("No UUID given"));
return 1;
}
else if (g_strv_length (uuids) > 1)
{
show_help (context, _("More than one UUID given"));
return 1;
}
return uninstall_extension (*uuids) ? 0 : 2;
}