mirror of https://github.com/OpenTTD/OpenTTD.git
105 lines
3.8 KiB
C++
105 lines
3.8 KiB
C++
/*
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* This file is part of OpenTTD.
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* OpenTTD 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 2.
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* OpenTTD 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.
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* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file fileio_func.h Functions for Standard In/Out file operations */
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#ifndef FILEIO_FUNC_H
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#define FILEIO_FUNC_H
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#include "core/enum_type.hpp"
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#include "fileio_type.h"
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void FioFCloseFile(FILE *f);
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FILE *FioFOpenFile(const std::string &filename, const char *mode, Subdirectory subdir, size_t *filesize = nullptr);
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bool FioCheckFileExists(const std::string &filename, Subdirectory subdir);
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std::string FioFindFullPath(Subdirectory subdir, const std::string &filename);
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std::string FioGetDirectory(Searchpath sp, Subdirectory subdir);
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std::string FioFindDirectory(Subdirectory subdir);
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void FioCreateDirectory(const std::string &name);
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bool FioRemove(const std::string &filename);
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const char *FiosGetScreenshotDir();
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void SanitizeFilename(std::string &filename);
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void AppendPathSeparator(std::string &buf);
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void DeterminePaths(const char *exe, bool only_local_path);
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std::unique_ptr<char[]> ReadFileToMem(const std::string &filename, size_t &lenp, size_t maxsize);
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bool FileExists(const std::string &filename);
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bool ExtractTar(const std::string &tar_filename, Subdirectory subdir);
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extern std::string _personal_dir; ///< custom directory for personal settings, saves, newgrf, etc.
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extern std::vector<Searchpath> _valid_searchpaths;
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/** Helper for scanning for files with a given name */
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class FileScanner {
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protected:
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Subdirectory subdir; ///< The current sub directory we are searching through
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public:
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/** Destruct the proper one... */
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virtual ~FileScanner() = default;
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uint Scan(std::string_view extension, Subdirectory sd, bool tars = true, bool recursive = true);
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uint Scan(std::string_view extension, const std::string &directory, bool recursive = true);
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/**
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* Add a file with the given filename.
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* @param filename the full path to the file to read
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* @param basepath_length amount of characters to chop of before to get a
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* filename relative to the search path.
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* @param tar_filename the name of the tar file the file is read from.
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* @return true if the file is added.
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*/
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virtual bool AddFile(const std::string &filename, size_t basepath_length, const std::string &tar_filename) = 0;
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};
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/** Helper for scanning for files with tar as extension */
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class TarScanner : FileScanner {
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uint DoScan(Subdirectory sd);
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public:
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/** The mode of tar scanning. */
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enum Mode {
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NONE = 0, ///< Scan nothing.
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BASESET = 1 << 0, ///< Scan for base sets.
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NEWGRF = 1 << 1, ///< Scan for non-base sets.
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AI = 1 << 2, ///< Scan for AIs and its libraries.
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SCENARIO = 1 << 3, ///< Scan for scenarios and heightmaps.
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GAME = 1 << 4, ///< Scan for game scripts.
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ALL = BASESET | NEWGRF | AI | SCENARIO | GAME, ///< Scan for everything.
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};
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bool AddFile(const std::string &filename, size_t basepath_length, const std::string &tar_filename = {}) override;
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bool AddFile(Subdirectory sd, const std::string &filename);
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/** Do the scan for Tars. */
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static uint DoScan(TarScanner::Mode mode);
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};
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DECLARE_ENUM_AS_BIT_SET(TarScanner::Mode)
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/** Auto-close a file upon scope exit. */
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class FileCloser {
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FILE *f;
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public:
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FileCloser(FILE *_f) : f(_f) {}
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~FileCloser()
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{
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fclose(f);
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}
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};
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/** Helper to manage a FILE with a \c std::unique_ptr. */
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struct FileDeleter {
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void operator()(FILE *f)
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{
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if (f) fclose(f);
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}
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};
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#endif /* FILEIO_FUNC_H */
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