glib/gio/gio-tool-trash.c

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/*
* 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 gboolean restore = FALSE;
static gboolean list = 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 },
{ "list", 0, 0, G_OPTION_ARG_NONE, &list, N_("List files in the trash with their original locations"), NULL },
{ "restore", 0, 0, G_OPTION_ARG_NONE, &restore, N_("Restore a file from trash to its original location (possibly "
"recreating the directory)"), 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);
}
static gboolean
restore_trash (GFile *file,
gboolean force,
GCancellable *cancellable,
GError **error)
{
GFileInfo *info = NULL;
GFile *target = NULL;
GFile *dir_target = NULL;
gboolean ret = FALSE;
gchar *orig_path = NULL;
GError *local_error = NULL;
info = g_file_query_info (file, G_FILE_ATTRIBUTE_TRASH_ORIG_PATH, G_FILE_QUERY_INFO_NONE, cancellable, &local_error);
if (local_error)
{
g_propagate_error (error, local_error);
goto exit_func;
}
orig_path = g_file_info_get_attribute_as_string (info, G_FILE_ATTRIBUTE_TRASH_ORIG_PATH);
if (!orig_path)
{
g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_FOUND, _("Unable to find original path"));
goto exit_func;
}
target = g_file_new_for_commandline_arg (orig_path);
g_free (orig_path);
dir_target = g_file_get_parent (target);
if (dir_target)
{
g_file_make_directory_with_parents (dir_target, cancellable, &local_error);
if (g_error_matches (local_error, G_IO_ERROR, G_IO_ERROR_EXISTS))
{
g_clear_error (&local_error);
}
else if (local_error != NULL)
{
g_propagate_prefixed_error (error, local_error, _("Unable to recreate original location: "));
goto exit_func;
}
}
if (!g_file_move (file,
target,
force ? G_FILE_COPY_OVERWRITE : G_FILE_COPY_NONE,
cancellable,
NULL,
NULL,
&local_error))
{
g_propagate_prefixed_error (error, local_error, _("Unable to move file to its original location: "));
goto exit_func;
}
ret = TRUE;
exit_func:
g_clear_object (&target);
g_clear_object (&dir_target);
g_clear_object (&info);
return ret;
}
static gboolean
trash_list (GFile *file,
GCancellable *cancellable,
GError **error)
{
GFileEnumerator *enumerator;
GFileInfo *info;
GError *local_error = NULL;
gboolean res;
enumerator = g_file_enumerate_children (file,
G_FILE_ATTRIBUTE_STANDARD_NAME ","
G_FILE_ATTRIBUTE_TRASH_ORIG_PATH,
G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS,
cancellable,
&local_error);
if (!enumerator)
{
g_propagate_error (error, local_error);
return FALSE;
}
res = TRUE;
while ((info = g_file_enumerator_next_file (enumerator, cancellable, &local_error)) != NULL)
{
const char *name;
char *orig_path;
char *uri;
GFile* child;
name = g_file_info_get_name (info);
child = g_file_get_child (file, name);
uri = g_file_get_uri (child);
g_object_unref (child);
orig_path = g_file_info_get_attribute_as_string (info, G_FILE_ATTRIBUTE_TRASH_ORIG_PATH);
g_print ("%s\t%s\n", uri, orig_path);
g_object_unref (info);
g_free (orig_path);
g_free (uri);
}
if (local_error)
{
g_propagate_error (error, local_error);
local_error = NULL;
res = FALSE;
}
if (!g_file_enumerator_close (enumerator, cancellable, &local_error))
{
print_file_error (file, local_error->message);
g_clear_error (&local_error);
res = FALSE;
}
return res;
}
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/Restore files or directories to the trash."));
g_option_context_set_description (context,
_("Note: for --restore switch, if the original location of the trashed file \n"
"already exists, it will not be overwritten unless --force is set."));
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 (restore)
{
if (!g_file_has_uri_scheme (file, "trash"))
{
print_file_error (file, _("Location given doesn't start with trash:///"));
retval = 1;
}
else if (!restore_trash (file, force, NULL, &error))
{
print_file_error (file, error->message);
retval = 1;
}
}
else 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_clear_error (&error);
g_object_unref (file);
}
}
else if (list)
{
GFile *file;
file = g_file_new_for_uri ("trash:");
trash_list (file, NULL, &error);
if (error)
{
print_file_error (file, error->message);
g_clear_error (&error);
retval = 1;
}
g_object_unref (file);
}
else 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 && !list)
{
show_help (context, _("No locations given"));
g_option_context_free (context);
return 1;
}
g_option_context_free (context);
return retval;
}