107 lines
3.4 KiB
JavaScript
107 lines
3.4 KiB
JavaScript
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/* DING: Desktop Icons New Generation for GNOME Shell
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*
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* Copyright (C) 2022 Marco Trevisan <marco.trevisan@canonical.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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'use strict';
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const {GLib, Gio} = imports.gi;
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const DEFAULT_ENUMERATE_BATCH_SIZE = 100;
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const DEFAULT_QUERY_ATTRIBUTES = [
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Gio.FILE_ATTRIBUTE_STANDARD_NAME,
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Gio.FILE_ATTRIBUTE_STANDARD_TYPE,
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].join(',');
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/**
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*
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* @param dir
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* @param cancellable
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* @param priority
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* @param queryAttributes
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*/
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async function enumerateDir(dir, cancellable = null, priority = GLib.PRIORITY_DEFAULT,
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queryAttributes = DEFAULT_QUERY_ATTRIBUTES) {
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const childrenEnumerator = await dir.enumerate_children_async_promise(queryAttributes,
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Gio.FileQueryInfoFlags.NONE, priority, cancellable);
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try {
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const children = [];
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while (true) {
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// The enumerator doesn't support multiple async calls, nor
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// we can predict how many they will be, so using Promise.all
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// isn't an option here, thus we just need to await each batch
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// eslint-disable-next-line no-await-in-loop
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const batch = await childrenEnumerator.next_files_async_promise(
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DEFAULT_ENUMERATE_BATCH_SIZE, priority, cancellable);
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if (!batch.length) {
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return children;
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}
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children.push(...batch);
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}
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} finally {
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if (!childrenEnumerator.is_closed()) {
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await childrenEnumerator.close_async_promise(priority, null);
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}
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}
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}
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/**
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*
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* @param dir
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* @param deleteParent
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* @param cancellable
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* @param priority
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*/
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async function recursivelyDeleteDir(dir, deleteParent, cancellable = null,
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priority = GLib.PRIORITY_DEFAULT) {
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const children = await enumerateDir(dir, cancellable, priority);
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/* eslint-disable no-await-in-loop */
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for (let info of children) {
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await deleteFile(dir.get_child(info.get_name()), info, cancellable, priority);
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}
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if (deleteParent) {
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await dir.delete_async_promise(priority, cancellable);
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}
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}
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/**
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*
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* @param file
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* @param info
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* @param cancellable
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* @param priority
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*/
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async function deleteFile(file, info = null, cancellable = null,
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priority = GLib.PRIORITY_DEFAULT) {
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if (!info) {
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info = await file.query_info_async_promise(
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Gio.FILE_ATTRIBUTE_STANDARD_TYPE, Gio.FileQueryInfoFlags.NONE,
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priority, cancellable);
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}
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const type = info.get_file_type();
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if (type === Gio.FileType.REGULAR || type === Gio.FileType.SYMBOLIC_LINK) {
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await file.delete_async_promise(priority, cancellable);
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} else if (type === Gio.FileType.DIRECTORY) {
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await recursivelyDeleteDir(file, true, cancellable, priority);
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} else {
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throw new GLib.Error(Gio.IOErrorEnum,
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Gio.IOErrorEnum.NOT_SUPPORTED,
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`${file.get_path()} of type ${type} cannot be removed`);
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}
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}
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