glib/gio/gio-tool-trash.c
Ondrej Holy f474ec1f72 gio-tool-trash: Prevent recursion to speed up emptying trash
Emptying trash over `gio trash` is a bit slow in comparison to plain
`rm -r`. On my system, it took about 3 min to empty the trash with a
folder containing 600 000 files, which is not ideal as `rm -r` call
took just a few seconds. I found that `g_file_delete` is implemented
differently for locations provided by the trash backend. The trash
backend prevents modifications of trashed content thus the delete
operation is allowed only for the top-level files and folders. So it
is not necessary to recursive delete all files as the permission
denied error is returned anyway. Let's call `g_file_delete` only for
top-level items, which reduces the time necessary for emptying trash
from minutes to seconds...

See: https://gitlab.gnome.org/GNOME/nautilus/-/issues/1589
2020-09-23 15:35:47 +02:00

154 lines
4.3 KiB
C

/*
* Copyright 2015 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*
* Author: Matthias Clasen <mclasen@redhat.com>
*/
#include "config.h"
#include <gio/gio.h>
#include <gi18n.h>
#include "gio-tool.h"
static gboolean force = FALSE;
static gboolean empty = FALSE;
static const GOptionEntry entries[] = {
{ "force", 'f', 0, G_OPTION_ARG_NONE, &force, N_("Ignore nonexistent files, never prompt"), NULL },
{ "empty", 0, 0, G_OPTION_ARG_NONE, &empty, N_("Empty the trash"), NULL },
{ NULL }
};
static void
delete_trash_file (GFile *file, gboolean del_file, gboolean del_children)
{
GFileInfo *info;
GFile *child;
GFileEnumerator *enumerator;
g_return_if_fail (g_file_has_uri_scheme (file, "trash"));
if (del_children)
{
enumerator = g_file_enumerate_children (file,
G_FILE_ATTRIBUTE_STANDARD_NAME ","
G_FILE_ATTRIBUTE_STANDARD_TYPE,
G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS,
NULL,
NULL);
if (enumerator)
{
while ((info = g_file_enumerator_next_file (enumerator, NULL, NULL)) != NULL)
{
child = g_file_get_child (file, g_file_info_get_name (info));
/* The g_file_delete operation works differently for locations
* provided by the trash backend as it prevents modifications of
* trashed items. For that reason, it is enough to call
* g_file_delete on top-level items only.
*/
delete_trash_file (child, TRUE, FALSE);
g_object_unref (child);
g_object_unref (info);
}
g_file_enumerator_close (enumerator, NULL, NULL);
g_object_unref (enumerator);
}
}
if (del_file)
g_file_delete (file, NULL, NULL);
}
int
handle_trash (int argc, char *argv[], gboolean do_help)
{
GOptionContext *context;
gchar *param;
GError *error = NULL;
int retval = 0;
GFile *file;
g_set_prgname ("gio trash");
/* Translators: commandline placeholder */
param = g_strdup_printf ("[%s…]", _("LOCATION"));
context = g_option_context_new (param);
g_free (param);
g_option_context_set_help_enabled (context, FALSE);
g_option_context_set_summary (context,
_("Move files or directories to the trash."));
g_option_context_add_main_entries (context, entries, GETTEXT_PACKAGE);
if (do_help)
{
show_help (context, NULL);
g_option_context_free (context);
return 0;
}
if (!g_option_context_parse (context, &argc, &argv, &error))
{
show_help (context, error->message);
g_error_free (error);
g_option_context_free (context);
return 1;
}
if (argc > 1)
{
int i;
for (i = 1; i < argc; i++)
{
file = g_file_new_for_commandline_arg (argv[i]);
error = NULL;
if (!g_file_trash (file, NULL, &error))
{
if (!force ||
!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND))
{
print_file_error (file, error->message);
retval = 1;
}
g_error_free (error);
}
g_object_unref (file);
}
}
if (empty)
{
GFile *file;
file = g_file_new_for_uri ("trash:");
delete_trash_file (file, FALSE, TRUE);
g_object_unref (file);
}
if (argc == 1 && !empty)
{
show_help (context, _("No locations given"));
g_option_context_free (context);
return 1;
}
g_option_context_free (context);
return retval;
}