yuzu/src/common/file_util.cpp

939 lines
26 KiB
C++

// Copyright 2013 Dolphin Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.
#include "common/common.h"
#include "common/file_util.h"
#ifdef _WIN32
#include <windows.h>
#include <shlobj.h> // for SHGetFolderPath
#include <shellapi.h>
#include <commdlg.h> // for GetSaveFileName
#include <io.h>
#include <direct.h> // getcwd
#include <tchar.h>
#else
#include <sys/param.h>
#include <dirent.h>
#endif
#if defined(__APPLE__)
#include <CoreFoundation/CFString.h>
#include <CoreFoundation/CFURL.h>
#include <CoreFoundation/CFBundle.h>
#endif
#include <algorithm>
#include <sys/stat.h>
#ifndef S_ISDIR
#define S_ISDIR(m) (((m)&S_IFMT) == S_IFDIR)
#endif
#ifdef BSD4_4
#define stat64 stat
#define fstat64 fstat
#endif
// This namespace has various generic functions related to files and paths.
// The code still needs a ton of cleanup.
// REMEMBER: strdup considered harmful!
namespace FileUtil
{
// Remove any ending forward slashes from directory paths
// Modifies argument.
static void StripTailDirSlashes(std::string &fname)
{
if (fname.length() > 1)
{
size_t i = fname.length() - 1;
while (fname[i] == DIR_SEP_CHR)
fname[i--] = '\0';
}
return;
}
// Returns true if file filename exists
bool Exists(const std::string &filename)
{
struct stat64 file_info;
std::string copy(filename);
StripTailDirSlashes(copy);
#ifdef _WIN32
int result = _tstat64(Common::UTF8ToTStr(copy).c_str(), &file_info);
#else
int result = stat64(copy.c_str(), &file_info);
#endif
return (result == 0);
}
// Returns true if filename is a directory
bool IsDirectory(const std::string &filename)
{
struct stat64 file_info;
std::string copy(filename);
StripTailDirSlashes(copy);
#ifdef _WIN32
int result = _tstat64(Common::UTF8ToTStr(copy).c_str(), &file_info);
#else
int result = stat64(copy.c_str(), &file_info);
#endif
if (result < 0) {
WARN_LOG(COMMON, "IsDirectory: stat failed on %s: %s",
filename.c_str(), GetLastErrorMsg());
return false;
}
return S_ISDIR(file_info.st_mode);
}
// Deletes a given filename, return true on success
// Doesn't supports deleting a directory
bool Delete(const std::string &filename)
{
INFO_LOG(COMMON, "Delete: file %s", filename.c_str());
// Return true because we care about the file no
// being there, not the actual delete.
if (!Exists(filename))
{
WARN_LOG(COMMON, "Delete: %s does not exist", filename.c_str());
return true;
}
// We can't delete a directory
if (IsDirectory(filename))
{
WARN_LOG(COMMON, "Delete failed: %s is a directory", filename.c_str());
return false;
}
#ifdef _WIN32
if (!DeleteFile(Common::UTF8ToTStr(filename).c_str()))
{
WARN_LOG(COMMON, "Delete: DeleteFile failed on %s: %s",
filename.c_str(), GetLastErrorMsg());
return false;
}
#else
if (unlink(filename.c_str()) == -1) {
WARN_LOG(COMMON, "Delete: unlink failed on %s: %s",
filename.c_str(), GetLastErrorMsg());
return false;
}
#endif
return true;
}
// Returns true if successful, or path already exists.
bool CreateDir(const std::string &path)
{
INFO_LOG(COMMON, "CreateDir: directory %s", path.c_str());
#ifdef _WIN32
if (::CreateDirectory(Common::UTF8ToTStr(path).c_str(), nullptr))
return true;
DWORD error = GetLastError();
if (error == ERROR_ALREADY_EXISTS)
{
WARN_LOG(COMMON, "CreateDir: CreateDirectory failed on %s: already exists", path.c_str());
return true;
}
ERROR_LOG(COMMON, "CreateDir: CreateDirectory failed on %s: %i", path.c_str(), error);
return false;
#else
if (mkdir(path.c_str(), 0755) == 0)
return true;
int err = errno;
if (err == EEXIST)
{
WARN_LOG(COMMON, "CreateDir: mkdir failed on %s: already exists", path.c_str());
return true;
}
ERROR_LOG(COMMON, "CreateDir: mkdir failed on %s: %s", path.c_str(), strerror(err));
return false;
#endif
}
// Creates the full path of fullPath returns true on success
bool CreateFullPath(const std::string &fullPath)
{
int panicCounter = 100;
INFO_LOG(COMMON, "CreateFullPath: path %s", fullPath.c_str());
if (FileUtil::Exists(fullPath))
{
INFO_LOG(COMMON, "CreateFullPath: path exists %s", fullPath.c_str());
return true;
}
size_t position = 0;
while (true)
{
// Find next sub path
position = fullPath.find(DIR_SEP_CHR, position);
// we're done, yay!
if (position == fullPath.npos)
return true;
// Include the '/' so the first call is CreateDir("/") rather than CreateDir("")
std::string const subPath(fullPath.substr(0, position + 1));
if (!FileUtil::IsDirectory(subPath) && !FileUtil::CreateDir(subPath)) {
ERROR_LOG(COMMON, "CreateFullPath: directory creation failed");
return false;
}
// A safety check
panicCounter--;
if (panicCounter <= 0)
{
ERROR_LOG(COMMON, "CreateFullPath: directory structure is too deep");
return false;
}
position++;
}
}
// Deletes a directory filename, returns true on success
bool DeleteDir(const std::string &filename)
{
INFO_LOG(COMMON, "DeleteDir: directory %s", filename.c_str());
// check if a directory
if (!FileUtil::IsDirectory(filename))
{
ERROR_LOG(COMMON, "DeleteDir: Not a directory %s", filename.c_str());
return false;
}
#ifdef _WIN32
if (::RemoveDirectory(Common::UTF8ToTStr(filename).c_str()))
return true;
#else
if (rmdir(filename.c_str()) == 0)
return true;
#endif
ERROR_LOG(COMMON, "DeleteDir: %s: %s", filename.c_str(), GetLastErrorMsg());
return false;
}
// renames file srcFilename to destFilename, returns true on success
bool Rename(const std::string &srcFilename, const std::string &destFilename)
{
INFO_LOG(COMMON, "Rename: %s --> %s",
srcFilename.c_str(), destFilename.c_str());
if (rename(srcFilename.c_str(), destFilename.c_str()) == 0)
return true;
ERROR_LOG(COMMON, "Rename: failed %s --> %s: %s",
srcFilename.c_str(), destFilename.c_str(), GetLastErrorMsg());
return false;
}
// copies file srcFilename to destFilename, returns true on success
bool Copy(const std::string &srcFilename, const std::string &destFilename)
{
INFO_LOG(COMMON, "Copy: %s --> %s",
srcFilename.c_str(), destFilename.c_str());
#ifdef _WIN32
if (CopyFile(Common::UTF8ToTStr(srcFilename).c_str(), Common::UTF8ToTStr(destFilename).c_str(), FALSE))
return true;
ERROR_LOG(COMMON, "Copy: failed %s --> %s: %s",
srcFilename.c_str(), destFilename.c_str(), GetLastErrorMsg());
return false;
#else
// buffer size
#define BSIZE 1024
char buffer[BSIZE];
// Open input file
FILE *input = fopen(srcFilename.c_str(), "rb");
if (!input)
{
ERROR_LOG(COMMON, "Copy: input failed %s --> %s: %s",
srcFilename.c_str(), destFilename.c_str(), GetLastErrorMsg());
return false;
}
// open output file
FILE *output = fopen(destFilename.c_str(), "wb");
if (!output)
{
fclose(input);
ERROR_LOG(COMMON, "Copy: output failed %s --> %s: %s",
srcFilename.c_str(), destFilename.c_str(), GetLastErrorMsg());
return false;
}
// copy loop
while (!feof(input))
{
// read input
int rnum = fread(buffer, sizeof(char), BSIZE, input);
if (rnum != BSIZE)
{
if (ferror(input) != 0)
{
ERROR_LOG(COMMON,
"Copy: failed reading from source, %s --> %s: %s",
srcFilename.c_str(), destFilename.c_str(), GetLastErrorMsg());
goto bail;
}
}
// write output
int wnum = fwrite(buffer, sizeof(char), rnum, output);
if (wnum != rnum)
{
ERROR_LOG(COMMON,
"Copy: failed writing to output, %s --> %s: %s",
srcFilename.c_str(), destFilename.c_str(), GetLastErrorMsg());
goto bail;
}
}
// close files
fclose(input);
fclose(output);
return true;
bail:
if (input)
fclose(input);
if (output)
fclose(output);
return false;
#endif
}
// Returns the size of filename (64bit)
u64 GetSize(const std::string &filename)
{
if (!Exists(filename))
{
WARN_LOG(COMMON, "GetSize: failed %s: No such file", filename.c_str());
return 0;
}
if (IsDirectory(filename))
{
WARN_LOG(COMMON, "GetSize: failed %s: is a directory", filename.c_str());
return 0;
}
struct stat64 buf;
#ifdef _WIN32
if (_tstat64(Common::UTF8ToTStr(filename).c_str(), &buf) == 0)
#else
if (stat64(filename.c_str(), &buf) == 0)
#endif
{
DEBUG_LOG(COMMON, "GetSize: %s: %lld",
filename.c_str(), (long long)buf.st_size);
return buf.st_size;
}
ERROR_LOG(COMMON, "GetSize: Stat failed %s: %s",
filename.c_str(), GetLastErrorMsg());
return 0;
}
// Overloaded GetSize, accepts file descriptor
u64 GetSize(const int fd)
{
struct stat64 buf;
if (fstat64(fd, &buf) != 0) {
ERROR_LOG(COMMON, "GetSize: stat failed %i: %s",
fd, GetLastErrorMsg());
return 0;
}
return buf.st_size;
}
// Overloaded GetSize, accepts FILE*
u64 GetSize(FILE *f)
{
// can't use off_t here because it can be 32-bit
u64 pos = ftello(f);
if (fseeko(f, 0, SEEK_END) != 0) {
ERROR_LOG(COMMON, "GetSize: seek failed %p: %s",
f, GetLastErrorMsg());
return 0;
}
u64 size = ftello(f);
if ((size != pos) && (fseeko(f, pos, SEEK_SET) != 0)) {
ERROR_LOG(COMMON, "GetSize: seek failed %p: %s",
f, GetLastErrorMsg());
return 0;
}
return size;
}
// creates an empty file filename, returns true on success
bool CreateEmptyFile(const std::string &filename)
{
INFO_LOG(COMMON, "CreateEmptyFile: %s", filename.c_str());
if (!FileUtil::IOFile(filename, "wb"))
{
ERROR_LOG(COMMON, "CreateEmptyFile: failed %s: %s",
filename.c_str(), GetLastErrorMsg());
return false;
}
return true;
}
// Scans the directory tree gets, starting from _Directory and adds the
// results into parentEntry. Returns the number of files+directories found
u32 ScanDirectoryTree(const std::string &directory, FSTEntry& parentEntry)
{
INFO_LOG(COMMON, "ScanDirectoryTree: directory %s", directory.c_str());
// How many files + directories we found
u32 foundEntries = 0;
#ifdef _WIN32
// Find the first file in the directory.
WIN32_FIND_DATA ffd;
HANDLE hFind = FindFirstFile(Common::UTF8ToTStr(directory + "\\*").c_str(), &ffd);
if (hFind == INVALID_HANDLE_VALUE)
{
FindClose(hFind);
return foundEntries;
}
// windows loop
do
{
FSTEntry entry;
const std::string virtualName(Common::TStrToUTF8(ffd.cFileName));
#else
struct dirent dirent, *result = nullptr;
DIR *dirp = opendir(directory.c_str());
if (!dirp)
return 0;
// non windows loop
while (!readdir_r(dirp, &dirent, &result) && result)
{
FSTEntry entry;
const std::string virtualName(result->d_name);
#endif
// check for "." and ".."
if (((virtualName[0] == '.') && (virtualName[1] == '\0')) ||
((virtualName[0] == '.') && (virtualName[1] == '.') &&
(virtualName[2] == '\0')))
continue;
entry.virtualName = virtualName;
entry.physicalName = directory;
entry.physicalName += DIR_SEP + entry.virtualName;
if (IsDirectory(entry.physicalName.c_str()))
{
entry.isDirectory = true;
// is a directory, lets go inside
entry.size = ScanDirectoryTree(entry.physicalName, entry);
foundEntries += (u32)entry.size;
}
else
{ // is a file
entry.isDirectory = false;
entry.size = GetSize(entry.physicalName.c_str());
}
++foundEntries;
// Push into the tree
parentEntry.children.push_back(entry);
#ifdef _WIN32
} while (FindNextFile(hFind, &ffd) != 0);
FindClose(hFind);
#else
}
closedir(dirp);
#endif
// Return number of entries found.
return foundEntries;
}
// Deletes the given directory and anything under it. Returns true on success.
bool DeleteDirRecursively(const std::string &directory)
{
INFO_LOG(COMMON, "DeleteDirRecursively: %s", directory.c_str());
#ifdef _WIN32
// Find the first file in the directory.
WIN32_FIND_DATA ffd;
HANDLE hFind = FindFirstFile(Common::UTF8ToTStr(directory + "\\*").c_str(), &ffd);
if (hFind == INVALID_HANDLE_VALUE)
{
FindClose(hFind);
return false;
}
// windows loop
do
{
const std::string virtualName(Common::TStrToUTF8(ffd.cFileName));
#else
struct dirent dirent, *result = nullptr;
DIR *dirp = opendir(directory.c_str());
if (!dirp)
return false;
// non windows loop
while (!readdir_r(dirp, &dirent, &result) && result)
{
const std::string virtualName = result->d_name;
#endif
// check for "." and ".."
if (((virtualName[0] == '.') && (virtualName[1] == '\0')) ||
((virtualName[0] == '.') && (virtualName[1] == '.') &&
(virtualName[2] == '\0')))
continue;
std::string newPath = directory + DIR_SEP_CHR + virtualName;
if (IsDirectory(newPath))
{
if (!DeleteDirRecursively(newPath))
{
#ifndef _WIN32
closedir(dirp);
#endif
return false;
}
}
else
{
if (!FileUtil::Delete(newPath))
{
#ifndef _WIN32
closedir(dirp);
#endif
return false;
}
}
#ifdef _WIN32
} while (FindNextFile(hFind, &ffd) != 0);
FindClose(hFind);
#else
}
closedir(dirp);
#endif
FileUtil::DeleteDir(directory);
return true;
}
// Create directory and copy contents (does not overwrite existing files)
void CopyDir(const std::string &source_path, const std::string &dest_path)
{
#ifndef _WIN32
if (source_path == dest_path) return;
if (!FileUtil::Exists(source_path)) return;
if (!FileUtil::Exists(dest_path)) FileUtil::CreateFullPath(dest_path);
struct dirent dirent, *result = nullptr;
DIR *dirp = opendir(source_path.c_str());
if (!dirp) return;
while (!readdir_r(dirp, &dirent, &result) && result)
{
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()
{
char *dir;
// Get the current working directory (getcwd uses malloc)
if (!(dir = __getcwd(nullptr, 0))) {
ERROR_LOG(COMMON, "GetCurrentDirectory failed: %s",
GetLastErrorMsg());
return nullptr;
}
std::string strDir = dir;
free(dir);
return strDir;
}
// Sets the current directory to the given directory
bool SetCurrentDir(const std::string &directory)
{
return __chdir(directory.c_str()) == 0;
}
#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
std::string& GetExeDirectory()
{
static std::string DolphinPath;
if (DolphinPath.empty())
{
TCHAR Dolphin_exe_Path[2048];
GetModuleFileName(nullptr, Dolphin_exe_Path, 2048);
DolphinPath = Common::TStrToUTF8(Dolphin_exe_Path);
DolphinPath = DolphinPath.substr(0, DolphinPath.find_last_of('\\'));
}
return DolphinPath;
}
#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;
INFO_LOG(COMMON, "GetSysDirectory: Setting to %s:", sysDir.c_str());
return sysDir;
}
// Returns a string with a Citra data dir or file in the user's home
// directory. To be used in "multi-user" mode (that is, installed).
const std::string& GetUserPath(const unsigned int DirIDX, const std::string &newPath)
{
static std::string paths[NUM_PATH_INDICES];
// Set up all paths and files on the first run
if (paths[D_USER_IDX].empty())
{
#ifdef _WIN32
paths[D_USER_IDX] = GetExeDirectory() + DIR_SEP USERDATA_DIR DIR_SEP;
#else
if (FileUtil::Exists(ROOT_DIR DIR_SEP USERDATA_DIR))
paths[D_USER_IDX] = ROOT_DIR DIR_SEP USERDATA_DIR DIR_SEP;
else
paths[D_USER_IDX] = std::string(getenv("HOME") ?
getenv("HOME") : getenv("PWD") ?
getenv("PWD") : "") + DIR_SEP EMU_DATA_DIR DIR_SEP;
#endif
paths[D_CONFIG_IDX] = paths[D_USER_IDX] + CONFIG_DIR DIR_SEP;
paths[D_GAMECONFIG_IDX] = paths[D_USER_IDX] + GAMECONFIG_DIR DIR_SEP;
paths[D_MAPS_IDX] = paths[D_USER_IDX] + MAPS_DIR DIR_SEP;
paths[D_CACHE_IDX] = paths[D_USER_IDX] + CACHE_DIR DIR_SEP;
paths[D_SDMC_IDX] = paths[D_USER_IDX] + SDMC_DIR DIR_SEP;
paths[D_SYSDATA_IDX] = paths[D_USER_IDX] + SYSDATA_DIR DIR_SEP;
paths[D_SHADERCACHE_IDX] = paths[D_USER_IDX] + SHADERCACHE_DIR DIR_SEP;
paths[D_SHADERS_IDX] = paths[D_USER_IDX] + SHADERS_DIR DIR_SEP;
paths[D_STATESAVES_IDX] = paths[D_USER_IDX] + STATESAVES_DIR DIR_SEP;
paths[D_SCREENSHOTS_IDX] = paths[D_USER_IDX] + SCREENSHOTS_DIR DIR_SEP;
paths[D_DUMP_IDX] = paths[D_USER_IDX] + DUMP_DIR DIR_SEP;
paths[D_DUMPFRAMES_IDX] = paths[D_DUMP_IDX] + DUMP_FRAMES_DIR DIR_SEP;
paths[D_DUMPAUDIO_IDX] = paths[D_DUMP_IDX] + DUMP_AUDIO_DIR DIR_SEP;
paths[D_DUMPTEXTURES_IDX] = paths[D_DUMP_IDX] + DUMP_TEXTURES_DIR DIR_SEP;
paths[D_LOGS_IDX] = paths[D_USER_IDX] + LOGS_DIR DIR_SEP;
paths[F_DEBUGGERCONFIG_IDX] = paths[D_CONFIG_IDX] + DEBUGGER_CONFIG;
paths[F_LOGGERCONFIG_IDX] = paths[D_CONFIG_IDX] + LOGGER_CONFIG;
paths[F_MAINLOG_IDX] = paths[D_LOGS_IDX] + MAIN_LOG;
}
if (!newPath.empty())
{
if (!FileUtil::IsDirectory(newPath))
{
WARN_LOG(COMMON, "Invalid path specified %s", newPath.c_str());
return paths[DirIDX];
}
else
{
paths[DirIDX] = newPath;
}
switch (DirIDX)
{
case D_ROOT_IDX:
paths[D_USER_IDX] = paths[D_ROOT_IDX] + DIR_SEP;
paths[D_SYSCONF_IDX] = paths[D_USER_IDX] + SYSCONF_DIR + DIR_SEP;
paths[F_SYSCONF_IDX] = paths[D_SYSCONF_IDX] + SYSCONF;
break;
case D_USER_IDX:
paths[D_USER_IDX] = paths[D_ROOT_IDX] + DIR_SEP;
paths[D_CONFIG_IDX] = paths[D_USER_IDX] + CONFIG_DIR DIR_SEP;
paths[D_GAMECONFIG_IDX] = paths[D_USER_IDX] + GAMECONFIG_DIR DIR_SEP;
paths[D_MAPS_IDX] = paths[D_USER_IDX] + MAPS_DIR DIR_SEP;
paths[D_CACHE_IDX] = paths[D_USER_IDX] + CACHE_DIR DIR_SEP;
paths[D_SDMC_IDX] = paths[D_USER_IDX] + SDMC_DIR DIR_SEP;
paths[D_SHADERCACHE_IDX] = paths[D_USER_IDX] + SHADERCACHE_DIR DIR_SEP;
paths[D_SHADERS_IDX] = paths[D_USER_IDX] + SHADERS_DIR DIR_SEP;
paths[D_STATESAVES_IDX] = paths[D_USER_IDX] + STATESAVES_DIR DIR_SEP;
paths[D_SCREENSHOTS_IDX] = paths[D_USER_IDX] + SCREENSHOTS_DIR DIR_SEP;
paths[D_DUMP_IDX] = paths[D_USER_IDX] + DUMP_DIR DIR_SEP;
paths[D_DUMPFRAMES_IDX] = paths[D_DUMP_IDX] + DUMP_FRAMES_DIR DIR_SEP;
paths[D_DUMPAUDIO_IDX] = paths[D_DUMP_IDX] + DUMP_AUDIO_DIR DIR_SEP;
paths[D_DUMPTEXTURES_IDX] = paths[D_DUMP_IDX] + DUMP_TEXTURES_DIR DIR_SEP;
paths[D_LOGS_IDX] = paths[D_USER_IDX] + LOGS_DIR DIR_SEP;
paths[D_SYSCONF_IDX] = paths[D_USER_IDX] + SYSCONF_DIR DIR_SEP;
paths[F_EMUCONFIG_IDX] = paths[D_CONFIG_IDX] + EMU_CONFIG;
paths[F_DEBUGGERCONFIG_IDX] = paths[D_CONFIG_IDX] + DEBUGGER_CONFIG;
paths[F_LOGGERCONFIG_IDX] = paths[D_CONFIG_IDX] + LOGGER_CONFIG;
paths[F_MAINLOG_IDX] = paths[D_LOGS_IDX] + MAIN_LOG;
break;
case D_CONFIG_IDX:
paths[F_EMUCONFIG_IDX] = paths[D_CONFIG_IDX] + EMU_CONFIG;
paths[F_DEBUGGERCONFIG_IDX] = paths[D_CONFIG_IDX] + DEBUGGER_CONFIG;
paths[F_LOGGERCONFIG_IDX] = paths[D_CONFIG_IDX] + LOGGER_CONFIG;
break;
case D_DUMP_IDX:
paths[D_DUMPFRAMES_IDX] = paths[D_DUMP_IDX] + DUMP_FRAMES_DIR DIR_SEP;
paths[D_DUMPAUDIO_IDX] = paths[D_DUMP_IDX] + DUMP_AUDIO_DIR DIR_SEP;
paths[D_DUMPTEXTURES_IDX] = paths[D_DUMP_IDX] + DUMP_TEXTURES_DIR DIR_SEP;
break;
case D_LOGS_IDX:
paths[F_MAINLOG_IDX] = paths[D_LOGS_IDX] + MAIN_LOG;
}
}
return paths[DirIDX];
}
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)
{
FileUtil::IOFile file(filename, text_file ? "r" : "rb");
auto const f = file.GetHandle();
if (!f)
return false;
str.resize(static_cast<u32>(GetSize(f)));
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);
}
}
IOFile::IOFile()
: m_file(nullptr), m_good(true)
{}
IOFile::IOFile(std::FILE* file)
: m_file(file), m_good(true)
{}
IOFile::IOFile(const std::string& filename, const char openmode[])
: m_file(nullptr), m_good(true)
{
Open(filename, openmode);
}
IOFile::~IOFile()
{
Close();
}
IOFile::IOFile(IOFile&& other)
: m_file(nullptr), m_good(true)
{
Swap(other);
}
IOFile& IOFile::operator=(IOFile&& other)
{
Swap(other);
return *this;
}
void IOFile::Swap(IOFile& other)
{
std::swap(m_file, other.m_file);
std::swap(m_good, other.m_good);
}
bool IOFile::Open(const std::string& filename, const char openmode[])
{
Close();
#ifdef _WIN32
_tfopen_s(&m_file, Common::UTF8ToTStr(filename).c_str(), Common::UTF8ToTStr(openmode).c_str());
#else
m_file = fopen(filename.c_str(), openmode);
#endif
m_good = IsOpen();
return m_good;
}
bool IOFile::Close()
{
if (!IsOpen() || 0 != std::fclose(m_file))
m_good = false;
m_file = nullptr;
return m_good;
}
std::FILE* IOFile::ReleaseHandle()
{
std::FILE* const ret = m_file;
m_file = nullptr;
return ret;
}
void IOFile::SetHandle(std::FILE* file)
{
Close();
Clear();
m_file = file;
}
u64 IOFile::GetSize()
{
if (IsOpen())
return FileUtil::GetSize(m_file);
else
return 0;
}
bool IOFile::Seek(s64 off, int origin)
{
if (!IsOpen() || 0 != fseeko(m_file, off, origin))
m_good = false;
return m_good;
}
u64 IOFile::Tell()
{
if (IsOpen())
return ftello(m_file);
else
return -1;
}
bool IOFile::Flush()
{
if (!IsOpen() || 0 != std::fflush(m_file))
m_good = false;
return m_good;
}
bool IOFile::Resize(u64 size)
{
if (!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
)
m_good = false;
return m_good;
}
} // namespace