mirror of
https://github.com/yuzu-emu/yuzu.git
synced 2024-11-16 11:50:05 +00:00
d66b43dadf
Instead of using an unsigned int as a parameter and expecting a user to always pass in the correct values, we can just convert the enum into an enum class and use that type as the parameter type instead, which makes the interface more type safe. We also get rid of the bookkeeping "NUM_" element in the enum by just using an unordered map. This function is generally low-frequency in terms of calls (and I'd hope so, considering otherwise would mean we're slamming the disk with IO all the time) so I'd consider this acceptable in this case.
954 lines
28 KiB
C++
954 lines
28 KiB
C++
// Copyright 2013 Dolphin Emulator Project / 2014 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <sstream>
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#include <unordered_map>
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#include "common/assert.h"
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#include "common/common_funcs.h"
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#include "common/common_paths.h"
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#include "common/file_util.h"
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#include "common/logging/log.h"
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#ifdef _WIN32
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#include <windows.h>
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// windows.h needs to be included before other windows headers
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#include <commdlg.h> // for GetSaveFileName
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#include <direct.h> // getcwd
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#include <io.h>
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#include <shellapi.h>
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#include <shlobj.h> // for SHGetFolderPath
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#include <tchar.h>
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#include "common/string_util.h"
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// 64 bit offsets for windows
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#define fseeko _fseeki64
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#define ftello _ftelli64
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#define atoll _atoi64
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#define stat _stat64
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#define fstat _fstat64
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#define fileno _fileno
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#else
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#ifdef __APPLE__
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#include <sys/param.h>
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#endif
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#include <cctype>
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#include <cerrno>
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#include <cstdlib>
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#include <cstring>
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#include <dirent.h>
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#include <pwd.h>
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#include <unistd.h>
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#endif
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#if defined(__APPLE__)
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// CFURL contains __attribute__ directives that gcc does not know how to parse, so we need to just
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// ignore them if we're not using clang. The macro is only used to prevent linking against
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// functions that don't exist on older versions of macOS, and the worst case scenario is a linker
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// error, so this is perfectly safe, just inconvenient.
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#ifndef __clang__
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#define availability(...)
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#endif
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#include <CoreFoundation/CFBundle.h>
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#include <CoreFoundation/CFString.h>
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#include <CoreFoundation/CFURL.h>
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#ifdef availability
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#undef availability
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#endif
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#endif
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#include <algorithm>
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#include <sys/stat.h>
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#ifndef S_ISDIR
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#define S_ISDIR(m) (((m)&S_IFMT) == S_IFDIR)
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#endif
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// This namespace has various generic functions related to files and paths.
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// The code still needs a ton of cleanup.
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// REMEMBER: strdup considered harmful!
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namespace FileUtil {
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// Remove any ending forward slashes from directory paths
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// Modifies argument.
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static void StripTailDirSlashes(std::string& fname) {
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if (fname.length() > 1) {
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size_t i = fname.length();
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while (i > 0 && fname[i - 1] == DIR_SEP_CHR)
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--i;
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fname.resize(i);
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}
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return;
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}
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// Returns true if file filename exists
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bool Exists(const std::string& filename) {
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struct stat file_info;
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std::string copy(filename);
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StripTailDirSlashes(copy);
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#ifdef _WIN32
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// Windows needs a slash to identify a driver root
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if (copy.size() != 0 && copy.back() == ':')
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copy += DIR_SEP_CHR;
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int result = _wstat64(Common::UTF8ToUTF16W(copy).c_str(), &file_info);
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#else
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int result = stat(copy.c_str(), &file_info);
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#endif
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return (result == 0);
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}
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// Returns true if filename is a directory
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bool IsDirectory(const std::string& filename) {
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struct stat file_info;
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std::string copy(filename);
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StripTailDirSlashes(copy);
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#ifdef _WIN32
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// Windows needs a slash to identify a driver root
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if (copy.size() != 0 && copy.back() == ':')
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copy += DIR_SEP_CHR;
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int result = _wstat64(Common::UTF8ToUTF16W(copy).c_str(), &file_info);
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#else
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int result = stat(copy.c_str(), &file_info);
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#endif
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if (result < 0) {
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LOG_DEBUG(Common_Filesystem, "stat failed on {}: {}", filename, GetLastErrorMsg());
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return false;
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}
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return S_ISDIR(file_info.st_mode);
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}
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// Deletes a given filename, return true on success
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// Doesn't supports deleting a directory
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bool Delete(const std::string& filename) {
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LOG_TRACE(Common_Filesystem, "file {}", filename);
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// Return true because we care about the file no
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// being there, not the actual delete.
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if (!Exists(filename)) {
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LOG_DEBUG(Common_Filesystem, "{} does not exist", filename);
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return true;
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}
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// We can't delete a directory
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if (IsDirectory(filename)) {
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LOG_ERROR(Common_Filesystem, "Failed: {} is a directory", filename);
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return false;
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}
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#ifdef _WIN32
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if (!DeleteFileW(Common::UTF8ToUTF16W(filename).c_str())) {
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LOG_ERROR(Common_Filesystem, "DeleteFile failed on {}: {}", filename, GetLastErrorMsg());
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return false;
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}
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#else
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if (unlink(filename.c_str()) == -1) {
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LOG_ERROR(Common_Filesystem, "unlink failed on {}: {}", filename, GetLastErrorMsg());
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return false;
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}
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#endif
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return true;
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}
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// Returns true if successful, or path already exists.
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bool CreateDir(const std::string& path) {
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LOG_TRACE(Common_Filesystem, "directory {}", path);
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#ifdef _WIN32
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if (::CreateDirectoryW(Common::UTF8ToUTF16W(path).c_str(), nullptr))
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return true;
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DWORD error = GetLastError();
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if (error == ERROR_ALREADY_EXISTS) {
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LOG_DEBUG(Common_Filesystem, "CreateDirectory failed on {}: already exists", path);
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return true;
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}
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LOG_ERROR(Common_Filesystem, "CreateDirectory failed on {}: {}", path, error);
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return false;
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#else
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if (mkdir(path.c_str(), 0755) == 0)
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return true;
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int err = errno;
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if (err == EEXIST) {
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LOG_DEBUG(Common_Filesystem, "mkdir failed on {}: already exists", path);
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return true;
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}
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LOG_ERROR(Common_Filesystem, "mkdir failed on {}: {}", path, strerror(err));
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return false;
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#endif
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}
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// Creates the full path of fullPath returns true on success
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bool CreateFullPath(const std::string& fullPath) {
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int panicCounter = 100;
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LOG_TRACE(Common_Filesystem, "path {}", fullPath);
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if (FileUtil::Exists(fullPath)) {
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LOG_DEBUG(Common_Filesystem, "path exists {}", fullPath);
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return true;
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}
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size_t position = 0;
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while (true) {
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// Find next sub path
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position = fullPath.find(DIR_SEP_CHR, position);
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// we're done, yay!
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if (position == fullPath.npos)
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return true;
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// Include the '/' so the first call is CreateDir("/") rather than CreateDir("")
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std::string const subPath(fullPath.substr(0, position + 1));
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if (!FileUtil::IsDirectory(subPath) && !FileUtil::CreateDir(subPath)) {
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LOG_ERROR(Common, "CreateFullPath: directory creation failed");
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return false;
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}
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// A safety check
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panicCounter--;
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if (panicCounter <= 0) {
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LOG_ERROR(Common, "CreateFullPath: directory structure is too deep");
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return false;
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}
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position++;
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}
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}
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// Deletes a directory filename, returns true on success
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bool DeleteDir(const std::string& filename) {
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LOG_TRACE(Common_Filesystem, "directory {}", filename);
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// check if a directory
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if (!FileUtil::IsDirectory(filename)) {
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LOG_ERROR(Common_Filesystem, "Not a directory {}", filename);
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return false;
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}
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#ifdef _WIN32
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if (::RemoveDirectoryW(Common::UTF8ToUTF16W(filename).c_str()))
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return true;
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#else
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if (rmdir(filename.c_str()) == 0)
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return true;
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#endif
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LOG_ERROR(Common_Filesystem, "failed {}: {}", filename, GetLastErrorMsg());
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return false;
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}
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// renames file srcFilename to destFilename, returns true on success
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bool Rename(const std::string& srcFilename, const std::string& destFilename) {
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LOG_TRACE(Common_Filesystem, "{} --> {}", srcFilename, destFilename);
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#ifdef _WIN32
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if (_wrename(Common::UTF8ToUTF16W(srcFilename).c_str(),
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Common::UTF8ToUTF16W(destFilename).c_str()) == 0)
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return true;
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#else
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if (rename(srcFilename.c_str(), destFilename.c_str()) == 0)
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return true;
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#endif
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LOG_ERROR(Common_Filesystem, "failed {} --> {}: {}", srcFilename, destFilename,
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GetLastErrorMsg());
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return false;
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}
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// copies file srcFilename to destFilename, returns true on success
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bool Copy(const std::string& srcFilename, const std::string& destFilename) {
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LOG_TRACE(Common_Filesystem, "{} --> {}", srcFilename, destFilename);
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#ifdef _WIN32
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if (CopyFileW(Common::UTF8ToUTF16W(srcFilename).c_str(),
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Common::UTF8ToUTF16W(destFilename).c_str(), FALSE))
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return true;
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LOG_ERROR(Common_Filesystem, "failed {} --> {}: {}", srcFilename, destFilename,
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GetLastErrorMsg());
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return false;
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#else
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// buffer size
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#define BSIZE 1024
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char buffer[BSIZE];
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// Open input file
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FILE* input = fopen(srcFilename.c_str(), "rb");
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if (!input) {
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LOG_ERROR(Common_Filesystem, "opening input failed {} --> {}: {}", srcFilename,
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destFilename, GetLastErrorMsg());
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return false;
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}
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// open output file
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FILE* output = fopen(destFilename.c_str(), "wb");
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if (!output) {
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fclose(input);
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LOG_ERROR(Common_Filesystem, "opening output failed {} --> {}: {}", srcFilename,
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destFilename, GetLastErrorMsg());
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return false;
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}
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// copy loop
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while (!feof(input)) {
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// read input
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size_t rnum = fread(buffer, sizeof(char), BSIZE, input);
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if (rnum != BSIZE) {
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if (ferror(input) != 0) {
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LOG_ERROR(Common_Filesystem, "failed reading from source, {} --> {}: {}",
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srcFilename, destFilename, GetLastErrorMsg());
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goto bail;
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}
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}
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// write output
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size_t wnum = fwrite(buffer, sizeof(char), rnum, output);
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if (wnum != rnum) {
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LOG_ERROR(Common_Filesystem, "failed writing to output, {} --> {}: {}", srcFilename,
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destFilename, GetLastErrorMsg());
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goto bail;
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}
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}
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// close files
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fclose(input);
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fclose(output);
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return true;
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bail:
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if (input)
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fclose(input);
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if (output)
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fclose(output);
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return false;
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#endif
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}
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// Returns the size of filename (64bit)
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u64 GetSize(const std::string& filename) {
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if (!Exists(filename)) {
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LOG_ERROR(Common_Filesystem, "failed {}: No such file", filename);
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return 0;
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}
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if (IsDirectory(filename)) {
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LOG_ERROR(Common_Filesystem, "failed {}: is a directory", filename);
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return 0;
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}
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struct stat buf;
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#ifdef _WIN32
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if (_wstat64(Common::UTF8ToUTF16W(filename).c_str(), &buf) == 0)
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#else
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if (stat(filename.c_str(), &buf) == 0)
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#endif
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{
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LOG_TRACE(Common_Filesystem, "{}: {}", filename, buf.st_size);
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return buf.st_size;
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}
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LOG_ERROR(Common_Filesystem, "Stat failed {}: {}", filename, GetLastErrorMsg());
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return 0;
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}
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// Overloaded GetSize, accepts file descriptor
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u64 GetSize(const int fd) {
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struct stat buf;
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if (fstat(fd, &buf) != 0) {
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LOG_ERROR(Common_Filesystem, "GetSize: stat failed {}: {}", fd, GetLastErrorMsg());
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return 0;
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}
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return buf.st_size;
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}
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// Overloaded GetSize, accepts FILE*
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u64 GetSize(FILE* f) {
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// can't use off_t here because it can be 32-bit
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u64 pos = ftello(f);
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if (fseeko(f, 0, SEEK_END) != 0) {
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LOG_ERROR(Common_Filesystem, "GetSize: seek failed {}: {}", fmt::ptr(f), GetLastErrorMsg());
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return 0;
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}
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u64 size = ftello(f);
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if ((size != pos) && (fseeko(f, pos, SEEK_SET) != 0)) {
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LOG_ERROR(Common_Filesystem, "GetSize: seek failed {}: {}", fmt::ptr(f), GetLastErrorMsg());
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return 0;
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}
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return size;
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}
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// creates an empty file filename, returns true on success
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bool CreateEmptyFile(const std::string& filename) {
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LOG_TRACE(Common_Filesystem, "{}", filename);
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if (!FileUtil::IOFile(filename, "wb").IsOpen()) {
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LOG_ERROR(Common_Filesystem, "failed {}: {}", filename, GetLastErrorMsg());
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return false;
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}
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return true;
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}
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bool ForeachDirectoryEntry(unsigned* num_entries_out, const std::string& directory,
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DirectoryEntryCallable callback) {
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LOG_TRACE(Common_Filesystem, "directory {}", directory);
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// How many files + directories we found
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unsigned found_entries = 0;
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// Save the status of callback function
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bool callback_error = false;
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#ifdef _WIN32
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// Find the first file in the directory.
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WIN32_FIND_DATAW ffd;
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HANDLE handle_find = FindFirstFileW(Common::UTF8ToUTF16W(directory + "\\*").c_str(), &ffd);
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if (handle_find == INVALID_HANDLE_VALUE) {
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FindClose(handle_find);
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return false;
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}
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// windows loop
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do {
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const std::string virtual_name(Common::UTF16ToUTF8(ffd.cFileName));
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#else
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DIR* dirp = opendir(directory.c_str());
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if (!dirp)
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return false;
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// non windows loop
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while (struct dirent* result = readdir(dirp)) {
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const std::string virtual_name(result->d_name);
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#endif
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if (virtual_name == "." || virtual_name == "..")
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continue;
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unsigned ret_entries = 0;
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if (!callback(&ret_entries, directory, virtual_name)) {
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callback_error = true;
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break;
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}
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found_entries += ret_entries;
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#ifdef _WIN32
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} while (FindNextFileW(handle_find, &ffd) != 0);
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FindClose(handle_find);
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#else
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}
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closedir(dirp);
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#endif
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if (callback_error)
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return false;
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// num_entries_out is allowed to be specified nullptr, in which case we shouldn't try to set it
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if (num_entries_out != nullptr)
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*num_entries_out = found_entries;
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return true;
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}
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unsigned ScanDirectoryTree(const std::string& directory, FSTEntry& parent_entry,
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unsigned int recursion) {
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const auto callback = [recursion, &parent_entry](unsigned* num_entries_out,
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const std::string& directory,
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const std::string& virtual_name) -> bool {
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FSTEntry entry;
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entry.virtualName = virtual_name;
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entry.physicalName = directory + DIR_SEP + virtual_name;
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if (IsDirectory(entry.physicalName)) {
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entry.isDirectory = true;
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// is a directory, lets go inside if we didn't recurse to often
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if (recursion > 0) {
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entry.size = ScanDirectoryTree(entry.physicalName, entry, recursion - 1);
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*num_entries_out += (int)entry.size;
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} else {
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entry.size = 0;
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}
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} else { // is a file
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entry.isDirectory = false;
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entry.size = GetSize(entry.physicalName);
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}
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(*num_entries_out)++;
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// Push into the tree
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parent_entry.children.push_back(entry);
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return true;
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};
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unsigned num_entries;
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return ForeachDirectoryEntry(&num_entries, directory, callback) ? num_entries : 0;
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}
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bool DeleteDirRecursively(const std::string& directory, unsigned int recursion) {
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const auto callback = [recursion](unsigned* num_entries_out, const std::string& directory,
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const std::string& virtual_name) -> bool {
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std::string new_path = directory + DIR_SEP_CHR + virtual_name;
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if (IsDirectory(new_path)) {
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if (recursion == 0)
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return false;
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return DeleteDirRecursively(new_path, recursion - 1);
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}
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return Delete(new_path);
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};
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if (!ForeachDirectoryEntry(nullptr, directory, callback))
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return false;
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// Delete the outermost directory
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FileUtil::DeleteDir(directory);
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return true;
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}
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// Create directory and copy contents (does not overwrite existing files)
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void CopyDir(const std::string& source_path, const std::string& dest_path) {
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#ifndef _WIN32
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if (source_path == dest_path)
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return;
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if (!FileUtil::Exists(source_path))
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return;
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if (!FileUtil::Exists(dest_path))
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FileUtil::CreateFullPath(dest_path);
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DIR* dirp = opendir(source_path.c_str());
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if (!dirp)
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return;
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while (struct dirent* result = readdir(dirp)) {
|
||
const std::string virtualName(result->d_name);
|
||
// check for "." and ".."
|
||
if (((virtualName[0] == '.') && (virtualName[1] == '\0')) ||
|
||
((virtualName[0] == '.') && (virtualName[1] == '.') && (virtualName[2] == '\0')))
|
||
continue;
|
||
|
||
std::string source, dest;
|
||
source = source_path + virtualName;
|
||
dest = dest_path + virtualName;
|
||
if (IsDirectory(source)) {
|
||
source += '/';
|
||
dest += '/';
|
||
if (!FileUtil::Exists(dest))
|
||
FileUtil::CreateFullPath(dest);
|
||
CopyDir(source, dest);
|
||
} else if (!FileUtil::Exists(dest))
|
||
FileUtil::Copy(source, dest);
|
||
}
|
||
closedir(dirp);
|
||
#endif
|
||
}
|
||
|
||
// Returns the current directory
|
||
std::string GetCurrentDir() {
|
||
// Get the current working directory (getcwd uses malloc)
|
||
#ifdef _WIN32
|
||
wchar_t* dir;
|
||
if (!(dir = _wgetcwd(nullptr, 0))) {
|
||
#else
|
||
char* dir;
|
||
if (!(dir = getcwd(nullptr, 0))) {
|
||
#endif
|
||
LOG_ERROR(Common_Filesystem, "GetCurrentDirectory failed: {}", GetLastErrorMsg());
|
||
return nullptr;
|
||
}
|
||
#ifdef _WIN32
|
||
std::string strDir = Common::UTF16ToUTF8(dir);
|
||
#else
|
||
std::string strDir = dir;
|
||
#endif
|
||
free(dir);
|
||
return strDir;
|
||
}
|
||
|
||
// Sets the current directory to the given directory
|
||
bool SetCurrentDir(const std::string& directory) {
|
||
#ifdef _WIN32
|
||
return _wchdir(Common::UTF8ToUTF16W(directory).c_str()) == 0;
|
||
#else
|
||
return chdir(directory.c_str()) == 0;
|
||
#endif
|
||
}
|
||
|
||
#if defined(__APPLE__)
|
||
std::string GetBundleDirectory() {
|
||
CFURLRef BundleRef;
|
||
char AppBundlePath[MAXPATHLEN];
|
||
// Get the main bundle for the app
|
||
BundleRef = CFBundleCopyBundleURL(CFBundleGetMainBundle());
|
||
CFStringRef BundlePath = CFURLCopyFileSystemPath(BundleRef, kCFURLPOSIXPathStyle);
|
||
CFStringGetFileSystemRepresentation(BundlePath, AppBundlePath, sizeof(AppBundlePath));
|
||
CFRelease(BundleRef);
|
||
CFRelease(BundlePath);
|
||
|
||
return AppBundlePath;
|
||
}
|
||
#endif
|
||
|
||
#ifdef _WIN32
|
||
const std::string& GetExeDirectory() {
|
||
static std::string exe_path;
|
||
if (exe_path.empty()) {
|
||
wchar_t wchar_exe_path[2048];
|
||
GetModuleFileNameW(nullptr, wchar_exe_path, 2048);
|
||
exe_path = Common::UTF16ToUTF8(wchar_exe_path);
|
||
exe_path = exe_path.substr(0, exe_path.find_last_of('\\'));
|
||
}
|
||
return exe_path;
|
||
}
|
||
|
||
std::string AppDataRoamingDirectory() {
|
||
PWSTR pw_local_path = nullptr;
|
||
// Only supported by Windows Vista or later
|
||
SHGetKnownFolderPath(FOLDERID_RoamingAppData, 0, nullptr, &pw_local_path);
|
||
std::string local_path = Common::UTF16ToUTF8(pw_local_path);
|
||
CoTaskMemFree(pw_local_path);
|
||
return local_path;
|
||
}
|
||
#else
|
||
/**
|
||
* @return The user’s home directory on POSIX systems
|
||
*/
|
||
static const std::string& GetHomeDirectory() {
|
||
static std::string home_path;
|
||
if (home_path.empty()) {
|
||
const char* envvar = getenv("HOME");
|
||
if (envvar) {
|
||
home_path = envvar;
|
||
} else {
|
||
auto pw = getpwuid(getuid());
|
||
ASSERT_MSG(pw,
|
||
"$HOME isn’t defined, and the current user can’t be found in /etc/passwd.");
|
||
home_path = pw->pw_dir;
|
||
}
|
||
}
|
||
return home_path;
|
||
}
|
||
|
||
/**
|
||
* Follows the XDG Base Directory Specification to get a directory path
|
||
* @param envvar The XDG environment variable to get the value from
|
||
* @return The directory path
|
||
* @sa http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html
|
||
*/
|
||
static const std::string GetUserDirectory(const std::string& envvar) {
|
||
const char* directory = getenv(envvar.c_str());
|
||
|
||
std::string user_dir;
|
||
if (directory) {
|
||
user_dir = directory;
|
||
} else {
|
||
std::string subdirectory;
|
||
if (envvar == "XDG_DATA_HOME")
|
||
subdirectory = DIR_SEP ".local" DIR_SEP "share";
|
||
else if (envvar == "XDG_CONFIG_HOME")
|
||
subdirectory = DIR_SEP ".config";
|
||
else if (envvar == "XDG_CACHE_HOME")
|
||
subdirectory = DIR_SEP ".cache";
|
||
else
|
||
ASSERT_MSG(false, "Unknown XDG variable {}.", envvar);
|
||
user_dir = GetHomeDirectory() + subdirectory;
|
||
}
|
||
|
||
ASSERT_MSG(!user_dir.empty(), "User directory {} mustn’t be empty.", envvar);
|
||
ASSERT_MSG(user_dir[0] == '/', "User directory {} must be absolute.", envvar);
|
||
|
||
return user_dir;
|
||
}
|
||
#endif
|
||
|
||
std::string GetSysDirectory() {
|
||
std::string sysDir;
|
||
|
||
#if defined(__APPLE__)
|
||
sysDir = GetBundleDirectory();
|
||
sysDir += DIR_SEP;
|
||
sysDir += SYSDATA_DIR;
|
||
#else
|
||
sysDir = SYSDATA_DIR;
|
||
#endif
|
||
sysDir += DIR_SEP;
|
||
|
||
LOG_DEBUG(Common_Filesystem, "Setting to {}:", sysDir);
|
||
return sysDir;
|
||
}
|
||
|
||
// Returns a string with a yuzu data dir or file in the user's home
|
||
// directory. To be used in "multi-user" mode (that is, installed).
|
||
const std::string& GetUserPath(UserPath path, const std::string& new_path) {
|
||
static std::unordered_map<UserPath, std::string> paths;
|
||
auto& user_path = paths[UserPath::UserDir];
|
||
|
||
// Set up all paths and files on the first run
|
||
if (user_path.empty()) {
|
||
#ifdef _WIN32
|
||
user_path = GetExeDirectory() + DIR_SEP USERDATA_DIR DIR_SEP;
|
||
if (!FileUtil::IsDirectory(user_path)) {
|
||
user_path = AppDataRoamingDirectory() + DIR_SEP EMU_DATA_DIR DIR_SEP;
|
||
} else {
|
||
LOG_INFO(Common_Filesystem, "Using the local user directory");
|
||
}
|
||
|
||
paths.emplace(UserPath::ConfigDir, user_path + CONFIG_DIR DIR_SEP);
|
||
paths.emplace(UserPath::CacheDir, user_path + CACHE_DIR DIR_SEP);
|
||
#else
|
||
if (FileUtil::Exists(ROOT_DIR DIR_SEP USERDATA_DIR)) {
|
||
user_path = ROOT_DIR DIR_SEP USERDATA_DIR DIR_SEP;
|
||
paths.emplace(UserPath::ConfigDir, user_path + CONFIG_DIR DIR_SEP);
|
||
paths.emplace(UserPath::CacheDir, user_path + CACHE_DIR DIR_SEP);
|
||
} else {
|
||
std::string data_dir = GetUserDirectory("XDG_DATA_HOME");
|
||
std::string config_dir = GetUserDirectory("XDG_CONFIG_HOME");
|
||
std::string cache_dir = GetUserDirectory("XDG_CACHE_HOME");
|
||
|
||
user_path = data_dir + DIR_SEP EMU_DATA_DIR DIR_SEP;
|
||
paths.emplace(UserPath::ConfigDir, config_dir + DIR_SEP EMU_DATA_DIR DIR_SEP);
|
||
paths.emplace(UserPath::CacheDir, cache_dir + DIR_SEP EMU_DATA_DIR DIR_SEP);
|
||
}
|
||
#endif
|
||
paths.emplace(UserPath::SDMCDir, user_path + SDMC_DIR DIR_SEP);
|
||
paths.emplace(UserPath::NANDDir, user_path + NAND_DIR DIR_SEP);
|
||
paths.emplace(UserPath::SysDataDir, user_path + SYSDATA_DIR DIR_SEP);
|
||
// TODO: Put the logs in a better location for each OS
|
||
paths.emplace(UserPath::LogDir, user_path + LOG_DIR DIR_SEP);
|
||
}
|
||
|
||
if (!new_path.empty()) {
|
||
if (!FileUtil::IsDirectory(new_path)) {
|
||
LOG_ERROR(Common_Filesystem, "Invalid path specified {}", new_path);
|
||
return paths[path];
|
||
} else {
|
||
paths[path] = new_path;
|
||
}
|
||
|
||
switch (path) {
|
||
case UserPath::RootDir:
|
||
user_path = paths[UserPath::RootDir] + DIR_SEP;
|
||
break;
|
||
|
||
case UserPath::UserDir:
|
||
user_path = paths[UserPath::RootDir] + DIR_SEP;
|
||
paths[UserPath::ConfigDir] = user_path + CONFIG_DIR DIR_SEP;
|
||
paths[UserPath::CacheDir] = user_path + CACHE_DIR DIR_SEP;
|
||
paths[UserPath::SDMCDir] = user_path + SDMC_DIR DIR_SEP;
|
||
paths[UserPath::NANDDir] = user_path + NAND_DIR DIR_SEP;
|
||
break;
|
||
}
|
||
}
|
||
|
||
return paths[path];
|
||
}
|
||
|
||
size_t WriteStringToFile(bool text_file, const std::string& str, const char* filename) {
|
||
return FileUtil::IOFile(filename, text_file ? "w" : "wb").WriteBytes(str.data(), str.size());
|
||
}
|
||
|
||
size_t ReadFileToString(bool text_file, const char* filename, std::string& str) {
|
||
IOFile file(filename, text_file ? "r" : "rb");
|
||
|
||
if (!file.IsOpen())
|
||
return false;
|
||
|
||
str.resize(static_cast<u32>(file.GetSize()));
|
||
return file.ReadArray(&str[0], str.size());
|
||
}
|
||
|
||
/**
|
||
* Splits the filename into 8.3 format
|
||
* Loosely implemented following https://en.wikipedia.org/wiki/8.3_filename
|
||
* @param filename The normal filename to use
|
||
* @param short_name A 9-char array in which the short name will be written
|
||
* @param extension A 4-char array in which the extension will be written
|
||
*/
|
||
void SplitFilename83(const std::string& filename, std::array<char, 9>& short_name,
|
||
std::array<char, 4>& extension) {
|
||
const std::string forbidden_characters = ".\"/\\[]:;=, ";
|
||
|
||
// On a FAT32 partition, 8.3 names are stored as a 11 bytes array, filled with spaces.
|
||
short_name = {{' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', '\0'}};
|
||
extension = {{' ', ' ', ' ', '\0'}};
|
||
|
||
std::string::size_type point = filename.rfind('.');
|
||
if (point == filename.size() - 1)
|
||
point = filename.rfind('.', point);
|
||
|
||
// Get short name.
|
||
int j = 0;
|
||
for (char letter : filename.substr(0, point)) {
|
||
if (forbidden_characters.find(letter, 0) != std::string::npos)
|
||
continue;
|
||
if (j == 8) {
|
||
// TODO(Link Mauve): also do that for filenames containing a space.
|
||
// TODO(Link Mauve): handle multiple files having the same short name.
|
||
short_name[6] = '~';
|
||
short_name[7] = '1';
|
||
break;
|
||
}
|
||
short_name[j++] = toupper(letter);
|
||
}
|
||
|
||
// Get extension.
|
||
if (point != std::string::npos) {
|
||
j = 0;
|
||
for (char letter : filename.substr(point + 1, 3))
|
||
extension[j++] = toupper(letter);
|
||
}
|
||
}
|
||
|
||
std::vector<std::string> SplitPathComponents(const std::string& filename) {
|
||
auto copy(filename);
|
||
std::replace(copy.begin(), copy.end(), '\\', '/');
|
||
std::vector<std::string> out;
|
||
|
||
std::stringstream stream(filename);
|
||
std::string item;
|
||
while (std::getline(stream, item, '/'))
|
||
out.push_back(std::move(item));
|
||
|
||
return out;
|
||
}
|
||
|
||
std::string GetParentPath(const std::string& path) {
|
||
auto out = path;
|
||
const auto name_bck_index = out.find_last_of('\\');
|
||
const auto name_fwd_index = out.find_last_of('/');
|
||
size_t name_index;
|
||
if (name_bck_index == std::string::npos || name_fwd_index == std::string::npos)
|
||
name_index = std::min<size_t>(name_bck_index, name_fwd_index);
|
||
else
|
||
name_index = std::max<size_t>(name_bck_index, name_fwd_index);
|
||
|
||
return out.erase(name_index);
|
||
}
|
||
|
||
std::string GetPathWithoutTop(std::string path) {
|
||
if (path.empty())
|
||
return "";
|
||
while (path[0] == '\\' || path[0] == '/') {
|
||
path = path.substr(1);
|
||
if (path.empty())
|
||
return "";
|
||
}
|
||
const auto name_bck_index = path.find_first_of('\\');
|
||
const auto name_fwd_index = path.find_first_of('/');
|
||
return path.substr(std::min<size_t>(name_bck_index, name_fwd_index) + 1);
|
||
return path.substr(std::min<size_t>(name_bck_index, name_fwd_index) + 1);
|
||
}
|
||
|
||
std::string GetFilename(std::string path) {
|
||
std::replace(path.begin(), path.end(), '\\', '/');
|
||
auto name_index = path.find_last_of('/');
|
||
if (name_index == std::string::npos)
|
||
return "";
|
||
return path.substr(name_index + 1);
|
||
}
|
||
|
||
std::string GetExtensionFromFilename(const std::string& name) {
|
||
size_t index = name.find_last_of('.');
|
||
if (index == std::string::npos)
|
||
return "";
|
||
|
||
return name.substr(index + 1);
|
||
}
|
||
|
||
std::string RemoveTrailingSlash(const std::string& path) {
|
||
if (path.empty())
|
||
return path;
|
||
if (path.back() == '\\' || path.back() == '/')
|
||
return path.substr(0, path.size() - 1);
|
||
|
||
return path;
|
||
}
|
||
|
||
IOFile::IOFile() {}
|
||
|
||
IOFile::IOFile(const std::string& filename, const char openmode[], int flags) {
|
||
Open(filename, openmode, flags);
|
||
}
|
||
|
||
IOFile::~IOFile() {
|
||
Close();
|
||
}
|
||
|
||
IOFile::IOFile(IOFile&& other) noexcept {
|
||
Swap(other);
|
||
}
|
||
|
||
IOFile& IOFile::operator=(IOFile&& other) noexcept {
|
||
Swap(other);
|
||
return *this;
|
||
}
|
||
|
||
void IOFile::Swap(IOFile& other) noexcept {
|
||
std::swap(m_file, other.m_file);
|
||
}
|
||
|
||
bool IOFile::Open(const std::string& filename, const char openmode[], int flags) {
|
||
Close();
|
||
#ifdef _WIN32
|
||
if (flags != 0) {
|
||
m_file = _wfsopen(Common::UTF8ToUTF16W(filename).c_str(),
|
||
Common::UTF8ToUTF16W(openmode).c_str(), flags);
|
||
} else {
|
||
_wfopen_s(&m_file, Common::UTF8ToUTF16W(filename).c_str(),
|
||
Common::UTF8ToUTF16W(openmode).c_str());
|
||
}
|
||
#else
|
||
m_file = fopen(filename.c_str(), openmode);
|
||
#endif
|
||
|
||
return IsOpen();
|
||
}
|
||
|
||
bool IOFile::Close() {
|
||
if (!IsOpen() || 0 != std::fclose(m_file))
|
||
return false;
|
||
|
||
m_file = nullptr;
|
||
return true;
|
||
}
|
||
|
||
u64 IOFile::GetSize() const {
|
||
if (IsOpen())
|
||
return FileUtil::GetSize(m_file);
|
||
|
||
return 0;
|
||
}
|
||
|
||
bool IOFile::Seek(s64 off, int origin) const {
|
||
return IsOpen() && 0 == fseeko(m_file, off, origin);
|
||
}
|
||
|
||
u64 IOFile::Tell() const {
|
||
if (IsOpen())
|
||
return ftello(m_file);
|
||
|
||
return -1;
|
||
}
|
||
|
||
bool IOFile::Flush() {
|
||
return IsOpen() && 0 == std::fflush(m_file);
|
||
}
|
||
|
||
bool IOFile::Resize(u64 size) {
|
||
return IsOpen() && 0 ==
|
||
#ifdef _WIN32
|
||
// ector: _chsize sucks, not 64-bit safe
|
||
// F|RES: changed to _chsize_s. i think it is 64-bit safe
|
||
_chsize_s(_fileno(m_file), size)
|
||
#else
|
||
// TODO: handle 64bit and growing
|
||
ftruncate(fileno(m_file), size)
|
||
#endif
|
||
;
|
||
}
|
||
|
||
} // namespace FileUtil
|