AuroraRuntime/Source/IO/FS/FS.Generic.cpp

242 lines
5.7 KiB
C++

/***
Copyright (C) 2021 J Reece Wilson (a/k/a "Reece"). All rights reserved.
File: FS.Generic.cpp
Date: 2021-6-12
Author: Reece
***/
#include <Source/RuntimeInternal.hpp>
#include "FS.hpp"
#include "FS.Generic.hpp"
#include <Source/Time/Time.hpp>
#if defined(_AURUNTIME_GENERICFS)
#include <stdio.h>
// if your platform isn't supported, let's not assume we have these dino headers
#if defined(__has_include) && __has_include(<sys/stat.h>)
#define _AURUNTIME_HAS_STAT
#include <sys/stat.h>
#endif
// HAS_STD_FS might exist, who knows, let's hope
namespace Aurora::IO::FS
{
AUKN_SYM bool FilesInDirectory(const AuString &string, AuList<AuString> &files)
{
return IterateDirEntriesSTL(string, true, files);
}
AUKN_SYM bool DirsInDirectory(const AuString &string, AuList<AuString> &dirs)
{
return IterateDirEntriesSTL(string, false, dirs);
}
AUKN_SYM bool WriteFile(const AuString &path, const void *data, AuUInt length)
{
auto file = fopen(NormalizePathRet(path).c_str(), "wb");
if (!file)
{
return false;
}
auto bytesWritten = fwrite(data, 1, length, file);
fclose(file);
return bytesWritten == length;
}
AUKN_SYM bool ReadFile(const AuString &path, AuList<AuUInt8> &buffer)
{
auto file = fopen(NormalizePathRet(path).c_str(), "rb");
if (!file)
{
return false;
}
if (fseek(file, 0, SEEK_END) < 0)
{
return false;
}
auto size = ftell(file);
if (fseek(file, 0, SEEK_CUR) < 0)
{
return false;
}
buffer.resize(size);
auto bytesRead = fread(buffer.data(), 1, size, file);
fclose(file);
return bytesRead == size;
}
AUKN_SYM bool FileExists(const AuString &path)
{
auto file = fopen(NormalizePathRet(path).c_str(), "rb");
if (!file) return false;
fclose(file);
return true;
}
AUKN_SYM bool DirExists(const AuString &path)
{
#if defined(_AURUNTIME_HAS_STAT)
Stat stat;
if (!StatFile(path, stat))
{
return false;
}
return stat.existsDirectory;
#endif
return false;
}
AUKN_SYM bool DirMk(const AuString &path)
{
return false;
}
AUKN_SYM bool Remove(const AuString &path)
{
#if defined(HAS_STD_FS)
try
{
std::filesystem::remove(std::filesystem::u8path(NormalizePathRet(path)));
return true;
}
catch (...)
{
return false;
}
#else
return ::remove(NormalizePathRet(path).c_str());
#endif
}
AUKN_SYM bool Relink(const AuString &src, const AuString &dest)
{
#if defined(HAS_STD_FS)
try
{
std::filesystem::rename(std::filesystem::u8path(NormalizePathRet(src)), std::filesystem::u8path(NormalizePathRet(dest)));
return true;
}
catch (...)
{
return false;
}
#else
if (!Copy(src, dest))
{
return false;
}
return Remove(src);
#endif
}
AUKN_SYM bool Copy(const AuString &src, const AuString &dest)
{
#if defined(HAS_STD_FS)
try
{
std::filesystem::copy(std::filesystem::u8path(NormalizePathRet(src)), std::filesystem::u8path(NormalizePathRet(dest)));
return true;
}
catch (...)
{
return false;
}
#else
// im not even going to bother writing a crt stream copy here
// what are you doing with this reference implemention?
AuList<AuUInt8> buffered;
if (!ReadFile(src, buffered))
{
return false;
}
return WriteFile(dest, buffered);
#endif
}
#if defined(_AURUNTIME_HAS_STAT)
AUKN_SYM bool StatFile(const AuString &pathRel, Stat &stat)
{
stat = {};
auto path = NormalizePathRet(pathRel);
struct stat s;
auto err = stat(path.c_str(), &s);
if (err == -1)
{
if (ENOENT == errno)
{
LogWarn("Critical IO error, errno = {}", path);
}
return false;
}
stat.existsFile = S_ISREG(s.st_mode);
stat.existsDirectory = S_ISDIR(s.st_mode);
stat.existsSystemResource = S_ISSOCK(s.st_mode);
stat.exists = stat.existsFile || stat.existsDirectory || stat.existsSystemResource;
if (!stat.exists)
{
LogWarn("Missing attribute type of path {}, stat mode {}", path, s.st_mode);
return false;
}
stat.size = s.st_size;
stat.created = ConvertUnixTimespecToMs(s.st_ctime);
stat.modified = ConvertUnixTimespecToMs(s.st_mtime);
stat.accessed = ConvertUnixTimespecToMs(s.st_atime);
err = lstat(path.c_str(), &s);
if (err != -1)
{
stat.symLink = S_ISLNK(s.st_mode);
}
return true;
}
#else
AUKN_SYM bool StatFile(const AuString &path, Stat &stat)
{
stat = {};
stat.existsDirectory = DirExists(path);
stat.existsFile = FileExists(path);
stat.exists = stat.existsDirectory || stat.existsFile;
if (stat.exists)
{
auto time = Time::CurrentClockMS();
stat.created = time;
stat.modified = time;
stat.accessed = time;
}
else
{
stat = {};
}
return stat.exists;
}
#endif
}
#endif