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Base: Modernize FileInfo

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This commit is contained in:
wmayer
2025-08-22 01:18:56 +02:00
committed by Ladislav Michl
parent 67d001585c
commit 12acd1da6c
2 changed files with 129 additions and 309 deletions
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436
src/Base/FileInfo.cpp
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@@ -21,7 +21,6 @@
* *
***************************************************************************/
#include "PreCompiled.h"
#ifndef _PreComp_
@@ -29,38 +28,20 @@
#include <codecvt>
#include <cstring>
#include <iostream>
#if defined(FC_OS_LINUX) || defined(FC_OS_CYGWIN) || defined(FC_OS_MACOSX) || defined(FC_OS_BSD)
#include <dirent.h>
#include <unistd.h>
#elif defined(FC_OS_WIN32)
#include <io.h>
#include <system_error>
#ifdef FC_OS_WIN32
#include <Windows.h>
#else
#include <unistd.h>
#endif
#include <sys/stat.h>
#include <sys/types.h>
#endif
#include "FileInfo.h"
#include "Exception.h"
#include "Stream.h"
#include "TimeInfo.h"
#include "Tools.h"
using namespace Base;
#ifndef R_OK
#define R_OK 4 /* Test for read permission */
#endif
#ifndef W_OK
#define W_OK 2 /* Test for write permission */
#endif
#ifndef X_OK
#define X_OK 1 /* Test for execute permission */
#endif
#ifndef F_OK
#define F_OK 0 /* Test for existence */
#endif
namespace fs = std::filesystem;
//**********************************************************************************
// helper
@@ -109,30 +90,9 @@ const std::string& FileInfo::getTempPath()
static std::string tempPath;
if (tempPath.empty()) {
#ifdef FC_OS_WIN32
wchar_t buf[MAX_PATH + 2];
GetTempPathW(MAX_PATH + 1, buf);
int neededSize = WideCharToMultiByte(CP_UTF8, 0, buf, -1, 0, 0, 0, 0);
char* dest = new char[static_cast<size_t>(neededSize)];
WideCharToMultiByte(CP_UTF8, 0, buf, -1, dest, neededSize, 0, 0);
tempPath = dest;
delete[] dest;
#else
const char* tmp = getenv("TMPDIR");
if (!Base::Tools::isNullOrEmpty(tmp)) {
tempPath = tmp;
FileInfo fi(tempPath);
if (tempPath.empty() || !fi.isDir()) { // still empty or non-existent
tempPath = "/tmp/";
}
else if (tempPath.at(tempPath.size() - 1) != '/') {
tempPath.append("/");
}
}
else {
tempPath = "/tmp/";
}
#endif
fs::path tmp = fs::temp_directory_path();
tmp += fs::path::preferred_separator;
tempPath = pathToString(tmp);
}
return tempPath;
@@ -208,20 +168,20 @@ std::string FileInfo::getTempFileName(const char* FileName, const char* Path)
#endif
}
std::filesystem::path FileInfo::stringToPath(const std::string& str)
fs::path FileInfo::stringToPath(const std::string& str)
{
#if defined(FC_OS_WIN32)
#ifdef FC_OS_WIN32
std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>> converter;
std::filesystem::path path(converter.from_bytes(str));
fs::path path(converter.from_bytes(str));
#else
std::filesystem::path path(str);
fs::path path(str);
#endif
return path;
}
std::string FileInfo::pathToString(const std::filesystem::path& path)
std::string FileInfo::pathToString(const fs::path& path)
{
#if defined(FC_OS_WIN32)
#ifdef FC_OS_WIN32
std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>> converter;
return converter.to_bytes(path.wstring());
#else
@@ -266,15 +226,7 @@ std::string FileInfo::dirPath() const
retval = FileName.substr(0, last_pos);
}
else {
#ifdef FC_OS_WIN32
wchar_t buf[MAX_PATH + 1];
GetCurrentDirectoryW(MAX_PATH, buf);
retval = std::string(ConvertFromWideString(std::wstring(buf)));
#else
char buf[PATH_MAX + 1];
const char* cwd = getcwd(buf, PATH_MAX);
retval = std::string(cwd ? cwd : ".");
#endif
retval = pathToString(fs::current_path());
}
return retval;
}
@@ -323,9 +275,9 @@ std::string FileInfo::completeExtension() const
bool FileInfo::hasExtension(const char* Ext) const
{
#if defined(FC_OS_WIN32)
#ifdef FC_OS_WIN32
return _stricmp(Ext, extension().c_str()) == 0;
#elif defined(FC_OS_LINUX) || defined(FC_OS_CYGWIN) || defined(FC_OS_MACOSX) || defined(FC_OS_BSD)
#else
return strcasecmp(Ext, extension().c_str()) == 0;
#endif
}
@@ -339,77 +291,62 @@ bool FileInfo::hasExtension(std::initializer_list<const char*> Exts) const
bool FileInfo::exists() const
{
#if defined(FC_OS_WIN32)
std::wstring wstr = toStdWString();
return _waccess(wstr.c_str(), F_OK) == 0;
#elif defined(FC_OS_LINUX) || defined(FC_OS_CYGWIN) || defined(FC_OS_MACOSX) || defined(FC_OS_BSD)
return access(FileName.c_str(), F_OK) == 0;
#endif
fs::path path(stringToPath(FileName));
return fs::exists(path);
}
bool FileInfo::isReadable() const
{
#if defined(FC_OS_WIN32)
std::wstring wstr = toStdWString();
return _waccess(wstr.c_str(), R_OK) == 0;
#elif defined(FC_OS_LINUX) || defined(FC_OS_CYGWIN) || defined(FC_OS_MACOSX) || defined(FC_OS_BSD)
return access(FileName.c_str(), R_OK) == 0;
#endif
fs::path path = stringToPath(FileName);
if (!fs::exists(path)) {
return false;
}
fs::file_status stat = fs::status(path);
fs::perms perms = stat.permissions();
return (perms & fs::perms::owner_read) == fs::perms::owner_read;
}
bool FileInfo::isWritable() const
{
#if defined(FC_OS_WIN32)
std::wstring wstr = toStdWString();
return _waccess(wstr.c_str(), W_OK) == 0;
#elif defined(FC_OS_LINUX) || defined(FC_OS_CYGWIN) || defined(FC_OS_MACOSX) || defined(FC_OS_BSD)
return access(FileName.c_str(), W_OK) == 0;
#endif
fs::path path = stringToPath(FileName);
if (!fs::exists(path)) {
return false;
}
fs::file_status stat = fs::status(path);
fs::perms perms = stat.permissions();
return (perms & fs::perms::owner_write) == fs::perms::owner_write;
}
bool FileInfo::setPermissions(Permissions perms)
{
int mode = 0;
fs::perms mode = fs::perms::none;
if (perms & FileInfo::ReadOnly) {
mode |= S_IREAD;
mode |= fs::perms::owner_read;
}
if (perms & FileInfo::WriteOnly) {
mode |= S_IWRITE;
mode |= fs::perms::owner_write;
}
if (mode == 0) { // bad argument
if (mode == fs::perms::none) { // bad argument
return false;
}
#if defined(FC_OS_WIN32)
std::wstring wstr = toStdWString();
return _wchmod(wstr.c_str(), mode) == 0;
#elif defined(FC_OS_LINUX) || defined(FC_OS_CYGWIN) || defined(FC_OS_MACOSX) || defined(FC_OS_BSD)
return chmod(FileName.c_str(), mode) == 0;
#endif
fs::path file_path = stringToPath(FileName);
if (!fs::exists(file_path)) {
return false;
}
fs::permissions(file_path, mode);
fs::file_status stat = fs::status(file_path);
return stat.permissions() == mode;
}
bool FileInfo::isFile() const
{
if (exists()) {
#ifdef FC_OS_WIN32
std::wstring wstr = toStdWString();
FILE* fd = _wfopen(wstr.c_str(), L"rb");
bool ok = (fd != 0);
if (fd) {
fclose(fd);
}
return ok;
#else
// clang-format off
struct stat st {};
// clang-format on
if (stat(FileName.c_str(), &st) != 0) {
return false;
}
return S_ISREG(st.st_mode);
#endif
fs::path path = stringToPath(FileName);
if (fs::exists(path)) {
return fs::is_regular_file(path);
}
// TODO: Check for valid file name
@@ -418,179 +355,108 @@ bool FileInfo::isFile() const
bool FileInfo::isDir() const
{
if (exists()) {
// if we can chdir then it must be a directory, otherwise we assume it
// is a file (which doesn't need to be true for any cases)
#if defined(FC_OS_WIN32)
std::wstring wstr = toStdWString();
struct _stat st;
if (_wstat(wstr.c_str(), &st) != 0) {
return false;
}
return ((st.st_mode & _S_IFDIR) != 0);
#elif defined(FC_OS_LINUX) || defined(FC_OS_CYGWIN) || defined(FC_OS_MACOSX) || defined(FC_OS_BSD)
struct stat st {};
if (stat(FileName.c_str(), &st) != 0) {
return false;
}
return S_ISDIR(st.st_mode);
#else
return false;
#endif
}
else {
return false;
fs::path path = stringToPath(FileName);
if (fs::exists(path)) {
return fs::is_directory(path);
}
// TODO: Check for valid path name
// return true;
return false;
}
unsigned int FileInfo::size() const
{
unsigned int bytes {};
if (exists()) {
#if defined(FC_OS_WIN32)
std::wstring wstr = toStdWString();
struct _stat st;
if (_wstat(wstr.c_str(), &st) == 0) {
bytes = st.st_size;
}
#elif defined(FC_OS_LINUX) || defined(FC_OS_CYGWIN) || defined(FC_OS_MACOSX) || defined(FC_OS_BSD)
struct stat st {};
if (stat(FileName.c_str(), &st) == 0) {
bytes = st.st_size;
}
#endif
fs::path path = stringToPath(FileName);
if (fs::exists(path)) {
bytes = fs::file_size(path);
}
return bytes;
}
template<typename TP>
std::time_t to_time_t(TP tp)
{
using namespace std::chrono;
auto sctp =
time_point_cast<system_clock::duration>(tp - TP::clock::now() + system_clock::now());
return system_clock::to_time_t(sctp);
}
TimeInfo FileInfo::lastModified() const
{
TimeInfo ti = TimeInfo::null();
if (exists()) {
#if defined(FC_OS_WIN32)
std::wstring wstr = toStdWString();
struct _stat st;
if (_wstat(wstr.c_str(), &st) == 0) {
ti.setTime_t(st.st_mtime);
}
#elif defined(FC_OS_LINUX) || defined(FC_OS_CYGWIN) || defined(FC_OS_MACOSX) || defined(FC_OS_BSD)
struct stat st {};
if (stat(FileName.c_str(), &st) == 0) {
ti.setTime_t(st.st_mtime);
}
#endif
fs::path path = stringToPath(FileName);
ti.setTime_t(to_time_t(fs::last_write_time(path)));
}
return ti;
}
TimeInfo FileInfo::lastRead() const
{
TimeInfo ti = TimeInfo::null();
if (exists()) {
#if defined(FC_OS_WIN32)
std::wstring wstr = toStdWString();
struct _stat st;
if (_wstat(wstr.c_str(), &st) == 0) {
ti.setTime_t(st.st_atime);
}
#elif defined(FC_OS_LINUX) || defined(FC_OS_CYGWIN) || defined(FC_OS_MACOSX) || defined(FC_OS_BSD)
struct stat st {};
if (stat(FileName.c_str(), &st) == 0) {
ti.setTime_t(st.st_atime);
}
#endif
}
return ti;
}
bool FileInfo::deleteFile() const
{
#if defined(FC_OS_WIN32)
std::wstring wstr = toStdWString();
return ::_wremove(wstr.c_str()) == 0;
#elif defined(FC_OS_LINUX) || defined(FC_OS_CYGWIN) || defined(FC_OS_MACOSX) || defined(FC_OS_BSD)
return (::remove(FileName.c_str()) == 0);
#else
#error "FileInfo::deleteFile() not implemented for this platform!"
#endif
try {
fs::path path = stringToPath(FileName);
return fs::remove(path);
}
catch (const fs::filesystem_error& e) {
std::clog << e.what() << '\n';
return false;
}
}
bool FileInfo::renameFile(const char* NewName)
{
bool res {};
#if defined(FC_OS_WIN32)
std::wstring oldname = toStdWString();
std::wstring newname = ConvertToWideString(NewName);
res = ::_wrename(oldname.c_str(), newname.c_str()) == 0;
#elif defined(FC_OS_LINUX) || defined(FC_OS_CYGWIN) || defined(FC_OS_MACOSX) || defined(FC_OS_BSD)
res = ::rename(FileName.c_str(), NewName) == 0;
#else
#error "FileInfo::renameFile() not implemented for this platform!"
#endif
if (!res) {
int code = errno;
std::clog << "Error in renameFile: " << strerror(code) << " (" << code << ")" << std::endl;
}
else {
try {
fs::path old_path = stringToPath(FileName);
fs::path new_path = stringToPath(NewName);
fs::rename(old_path, new_path);
FileName = NewName;
return true;
}
catch (const fs::filesystem_error& e) {
std::clog << "Error in renameFile: " << e.what() << '\n';
return false;
}
return res;
}
bool FileInfo::copyTo(const char* NewName) const
{
#if defined(FC_OS_WIN32)
std::wstring oldname = toStdWString();
std::wstring newname = ConvertToWideString(NewName);
return CopyFileW(oldname.c_str(), newname.c_str(), true) != 0;
#elif defined(FC_OS_LINUX) || defined(FC_OS_CYGWIN) || defined(FC_OS_MACOSX) || defined(FC_OS_BSD)
FileInfo fi1(FileName);
FileInfo fi2(NewName);
Base::ifstream file(fi1, std::ios::in | std::ios::binary);
file.unsetf(std::ios_base::skipws);
Base::ofstream copy(fi2, std::ios::out | std::ios::binary);
file >> copy.rdbuf();
return file.is_open() && copy.is_open();
#else
#error "FileInfo::copyTo() not implemented for this platform!"
#endif
try {
fs::path old_path = stringToPath(FileName);
fs::path new_path = stringToPath(NewName);
fs::copy(old_path, new_path);
return true;
}
catch (const fs::filesystem_error&) {
return false;
}
}
bool FileInfo::createDirectory() const
{
#if defined(FC_OS_WIN32)
std::wstring wstr = toStdWString();
return _wmkdir(wstr.c_str()) == 0;
#elif defined(FC_OS_LINUX) || defined(FC_OS_CYGWIN) || defined(FC_OS_MACOSX) || defined(FC_OS_BSD)
return mkdir(FileName.c_str(), 0777) == 0;
#else
#error "FileInfo::createDirectory() not implemented for this platform!"
#endif
try {
fs::path path(stringToPath(FileName));
return fs::create_directory(path);
}
catch (const fs::filesystem_error&) {
return false;
}
}
bool FileInfo::createDirectories() const
{
try {
std::filesystem::path path(stringToPath(FileName));
if (std::filesystem::exists(path)) {
fs::path path(stringToPath(FileName));
if (fs::exists(path)) {
return true;
}
std::filesystem::create_directories(path);
return true;
return fs::create_directories(path);
}
catch (const std::filesystem::filesystem_error&) {
catch (const fs::filesystem_error&) {
return false;
}
}
@@ -600,14 +466,15 @@ bool FileInfo::deleteDirectory() const
if (!isDir()) {
return false;
}
#if defined(FC_OS_WIN32)
std::wstring wstr = toStdWString();
return _wrmdir(wstr.c_str()) == 0;
#elif defined(FC_OS_LINUX) || defined(FC_OS_CYGWIN) || defined(FC_OS_MACOSX) || defined(FC_OS_BSD)
return rmdir(FileName.c_str()) == 0;
#else
#error "FileInfo::rmdir() not implemented for this platform!"
#endif
try {
fs::path path = stringToPath(FileName);
return fs::remove(path);
}
catch (const fs::filesystem_error& e) {
std::clog << e.what() << '\n';
return false;
}
}
bool FileInfo::deleteDirectoryRecursive() const
@@ -615,71 +482,26 @@ bool FileInfo::deleteDirectoryRecursive() const
if (!isDir()) {
return false;
}
std::vector<Base::FileInfo> List = getDirectoryContent();
for (Base::FileInfo& fi : List) {
if (fi.isDir()) {
// At least on Linux, directory needs execute permission to be
// deleted. We don't really need to set permission for directory
// anyway, since FC code does not touch directory permission.
//
// It->setPermissions(FileInfo::ReadWrite);
fi.deleteDirectoryRecursive();
}
else if (fi.isFile()) {
fi.setPermissions(FileInfo::ReadWrite);
fi.deleteFile();
}
else {
throw Base::FileException(
"FileInfo::deleteDirectoryRecursive(): Unknown object Type in directory!");
}
try {
fs::path path = stringToPath(FileName);
return fs::remove_all(path) > 0;
}
catch (const fs::filesystem_error& e) {
std::clog << e.what() << '\n';
return false;
}
return deleteDirectory();
}
std::vector<Base::FileInfo> FileInfo::getDirectoryContent() const
{
std::vector<Base::FileInfo> List;
#if defined(FC_OS_WIN32)
struct _wfinddata_t dentry;
std::error_code ec;
std::vector<Base::FileInfo> list;
fs::path path = stringToPath(FileName);
intptr_t hFile;
// Find first directory entry
std::wstring wstr = toStdWString();
wstr += L"/*";
if ((hFile = _wfindfirst(wstr.c_str(), &dentry)) == -1L) {
return List;
for (const fs::directory_entry& f : fs::directory_iterator {path, ec}) {
list.emplace_back(pathToString(f.path()));
}
while (_wfindnext(hFile, &dentry) == 0) {
if (wcscmp(dentry.name, L"..") != 0) {
List.push_back(
FileInfo(FileName + "/" + ConvertFromWideString(std::wstring(dentry.name))));
}
}
_findclose(hFile);
#elif defined(FC_OS_LINUX) || defined(FC_OS_CYGWIN) || defined(FC_OS_MACOSX) || defined(FC_OS_BSD)
DIR* dp(nullptr);
struct dirent* dentry(nullptr);
if (!(dp = opendir(FileName.c_str()))) {
return List;
}
while ((dentry = readdir(dp))) {
std::string dir = dentry->d_name;
if (dir != "." && dir != "..") {
List.emplace_back(FileName + "/" + dir);
}
}
closedir(dp);
#else
#error "FileInfo::getDirectoryContent() not implemented for this platform!"
#endif
return List;
return list;
}

2
src/Base/FileInfo.h
View File

@@ -127,8 +127,6 @@ public:
unsigned int size() const;
/// Returns the time when the file was last modified.
TimeInfo lastModified() const;
/// Returns the time when the file was last read (accessed).
TimeInfo lastRead() const;
//@}
/** @name Directory management*/