pollymc/launcher/FileSystem.h

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// SPDX-License-Identifier: GPL-3.0-only
/*
* PolyMC - Minecraft Launcher
* Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
*
* 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, version 3.
*
* 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 <https://www.gnu.org/licenses/>.
*
* This file incorporates work covered by the following copyright and
* permission notice:
*
* Copyright 2013-2021 MultiMC Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include "Exception.h"
#include "pathmatcher/IPathMatcher.h"
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#include <QDir>
#include <QFlags>
#include <QObject>
namespace FS {
class FileSystemException : public ::Exception {
public:
FileSystemException(const QString& message) : Exception(message) {}
};
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/**
* write data to a file safely
*/
void write(const QString& filename, const QByteArray& data);
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/**
* read data from a file safely\
*/
QByteArray read(const QString& filename);
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/**
* Update the last changed timestamp of an existing file
*/
bool updateTimestamp(const QString& filename);
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/**
* Creates all the folders in a path for the specified path
* last segment of the path is treated as a file name and is ignored!
*/
bool ensureFilePathExists(QString filenamepath);
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/**
* Creates all the folders in a path for the specified path
* last segment of the path is treated as a folder name and is created!
*/
bool ensureFolderPathExists(QString filenamepath);
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/// @brief Copies a directory and it's contents from src to dest
class copy : public QObject {
Q_OBJECT
public:
copy(const QString& src, const QString& dst, QObject* parent = nullptr) : QObject(parent)
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{
m_src.setPath(src);
m_dst.setPath(dst);
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}
copy& followSymlinks(const bool follow)
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{
m_followSymlinks = follow;
return *this;
}
copy& matcher(const IPathMatcher* filter)
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{
m_matcher = filter;
return *this;
}
copy& whitelist(bool whitelist)
{
m_whitelist = whitelist;
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return *this;
}
bool operator()(bool dryRun = false) { return operator()(QString(), dryRun); }
int totalCopied() { return m_copied; }
signals:
void fileCopied(const QString& relativeName);
// TODO: maybe add a "shouldCopy" signal in the future?
private:
bool operator()(const QString& offset, bool dryRun = false);
private:
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bool m_followSymlinks = true;
const IPathMatcher* m_matcher = nullptr;
bool m_whitelist = false;
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QDir m_src;
QDir m_dst;
int m_copied;
};
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/**
* Delete a folder recursively
*/
bool deletePath(QString path);
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/**
* Trash a folder / file
*/
bool trash(QString path, QString *pathInTrash);
QString PathCombine(const QString& path1, const QString& path2);
QString PathCombine(const QString& path1, const QString& path2, const QString& path3);
QString PathCombine(const QString& path1, const QString& path2, const QString& path3, const QString& path4);
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QString AbsolutePath(QString path);
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/**
* Resolve an executable
*
* Will resolve:
* single executable (by name)
* relative path
* absolute path
*
* @return absolute path to executable or null string
*/
QString ResolveExecutable(QString path);
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/**
* Normalize path
*
* Any paths inside the current directory will be normalized to relative paths (to current)
* Other paths will be made absolute
*
* Returns false if the path logic somehow filed (and normalizedPath in invalid)
*/
QString NormalizePath(QString path);
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QString RemoveInvalidFilenameChars(QString string, QChar replaceWith = '-');
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QString DirNameFromString(QString string, QString inDir = ".");
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/// Checks if the a given Path contains "!"
bool checkProblemticPathJava(QDir folder);
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// Get the Directory representing the User's Desktop
QString getDesktopDir();
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// Overrides one folder with the contents of another, preserving items exclusive to the first folder
// Equivalent to doing QDir::rename, but allowing for overrides
bool overrideFolder(QString overwritten_path, QString override_path);
}