axmol/core/platform/wasm/FileUtils-wasm.cpp

/****************************************************************************
Copyright (c) 2011      Laschweinski
Copyright (c) 2013-2016 Chukong Technologies Inc.
Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.

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Permission is hereby granted, free of charge, to any person obtaining a copy
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#include "platform/PlatformConfig.h"
#if AX_TARGET_PLATFORM == AX_PLATFORM_WASM

#include "platform/wasm/FileUtils-wasm.h"
#include "platform/wasm/Application-wasm.h"
#include "platform/Common.h"
#include "base/Macros.h"
#include "base/UTF8.h"
#include <unistd.h>

#include "yasio/string_view.hpp"

using namespace std;

NS_AX_BEGIN

FileUtils* FileUtils::getInstance()
{
    if (s_sharedFileUtils == nullptr)
    {
        s_sharedFileUtils = new FileUtilsEmscripten();
        if(!s_sharedFileUtils->init())
        {
          delete s_sharedFileUtils;
          s_sharedFileUtils = nullptr;
          AXLOG("ERROR: Could not init CCFileUtilsEmscripten");
        }
    }
    return s_sharedFileUtils;
}

FileUtilsEmscripten::FileUtilsEmscripten()
{}

bool FileUtilsEmscripten::init()
{
    _defaultResRootPath = "/";
    return FileUtils::init();
}

string FileUtilsEmscripten::getWritablePath() const
{
    return "/axmolPersistPath/";
}

std::string FileUtilsEmscripten::getNativeWritableAbsolutePath() const
{
    struct stat st;
    stat(_writablePath.c_str(), &st);
    if (!S_ISDIR(st.st_mode))
    {
        mkdir(_writablePath.c_str(), 0744);
    }

    return _writablePath;
}

bool FileUtilsEmscripten::isFileExistInternal(std::string_view path) const
{
    if (path.empty())
    {
        return false;
    }

    std::string strPath(path);
    if (strPath[0] != '/')
    { // Not absolute path, add the default root path at the beginning.
        if (!cxx20::starts_with(strPath, _defaultResRootPath))
        {// Didn't find "assets/" at the beginning of the path, adding it.
            strPath.insert(0, _defaultResRootPath);
        }
    }

    return access(strPath.c_str(), F_OK) != -1 ? true : false;
}

NS_AX_END

#endif // AX_TARGET_PLATFORM == AX_PLATFORM_WASM