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919492945e
FileManager, cp, mv, rm had some duplicated code, implementing basic file management operations. This patch creates adds functions that try to provide an interface suited for all these programs, but this patch does not make them be used throughout the Userland. They are added to Core::File following the example of functions such as read_link/real_path_for.
112 lines
3.9 KiB
C++
112 lines
3.9 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <AK/OSError.h>
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#include <AK/Result.h>
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#include <AK/String.h>
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#include <LibCore/IODevice.h>
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#include <sys/stat.h>
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namespace Core {
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class File final : public IODevice {
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C_OBJECT(File)
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public:
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virtual ~File() override;
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static Result<NonnullRefPtr<File>, String> open(const String& filename, IODevice::OpenMode, mode_t = 0644);
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String filename() const { return m_filename; }
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void set_filename(const StringView& filename) { m_filename = filename; }
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bool is_directory() const;
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static bool is_directory(const String& filename);
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static bool exists(const String& filename);
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static bool ensure_parent_directories(const String& path);
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enum class RecursionMode {
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Allowed,
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Disallowed
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};
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enum class LinkMode {
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Allowed,
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Disallowed
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};
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enum class AddDuplicateFileMarker {
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Yes,
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No,
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};
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struct CopyError {
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OSError error_code;
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bool tried_recursing;
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};
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static Result<void, CopyError> copy_file(const String& dst_path, const struct stat& src_stat, File& source);
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static Result<void, CopyError> copy_directory(const String& dst_path, const String& src_path, const struct stat& src_stat, LinkMode = LinkMode::Disallowed);
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static Result<void, CopyError> copy_file_or_directory(const String& dst_path, const String& src_path, RecursionMode = RecursionMode::Allowed, LinkMode = LinkMode::Disallowed, AddDuplicateFileMarker = AddDuplicateFileMarker::Yes);
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static String real_path_for(const String& filename);
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static String read_link(const StringView& link_path);
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static Result<void, OSError> link_file(const String& dst_path, const String& src_path);
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struct RemoveError {
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String file;
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OSError error_code;
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};
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static Result<void, RemoveError> remove(const String& path, RecursionMode, bool force);
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virtual bool open(IODevice::OpenMode) override;
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enum class ShouldCloseFileDescriptor {
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No = 0,
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Yes
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};
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bool open(int fd, IODevice::OpenMode, ShouldCloseFileDescriptor);
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static NonnullRefPtr<File> standard_input();
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static NonnullRefPtr<File> standard_output();
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static NonnullRefPtr<File> standard_error();
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private:
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File(Object* parent = nullptr)
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: IODevice(parent)
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{
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}
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explicit File(const StringView&, Object* parent = nullptr);
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bool open_impl(IODevice::OpenMode, mode_t);
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String m_filename;
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ShouldCloseFileDescriptor m_should_close_file_descriptor { ShouldCloseFileDescriptor::Yes };
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};
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}
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