cpp-ethereum/libdevcore/FileSystem.cpp at develop · cheny56/cpp-ethereum · GitHub

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This file is part of cpp-ethereum.

cpp-ethereum is free software: you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation, either version 3 of the License, or

(at your option) any later version.

cpp-ethereum is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

GNU General Public License for more details.

You should have received a copy of the GNU General Public License

along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.

/** @file FileSystem.cpp

* @authors

* Eric Lombrozo <elombrozo@gmail.com>

* Gav Wood <i@gavwood.com>

* @date 2014

#include "FileSystem.h"

#include "Common.h"

#include "Log.h"

#if defined(_WIN32)

#include <shlobj.h>

#else

#include <stdlib.h>

#include <stdio.h>

#include <pwd.h>

#include <unistd.h>

#endif

#include <boost/filesystem.hpp>

using namespace std;

using namespace dev;

namespace fs = boost::filesystem;

static_assert(BOOST_VERSION >= 106400, "Wrong boost headers version");

// Should be written to only once during startup

static fs::path s_ethereumDatadir;

static fs::path s_ethereumIpcPath;

void dev::setDataDir(fs::path const& _dataDir)

{

s_ethereumDatadir = _dataDir;

}

void dev::setIpcPath(fs::path const& _ipcDir)

{

s_ethereumIpcPath = _ipcDir;

}

fs::path dev::getIpcPath()

{

// Strip "geth.ipc" suffix if provided.

if (s_ethereumIpcPath.filename() == "geth.ipc")

return s_ethereumIpcPath.parent_path();

else

return s_ethereumIpcPath;

}

fs::path dev::getDataDir(string _prefix)

{

if (_prefix.empty())

_prefix = "ethereum";

if (_prefix == "ethereum" && !s_ethereumDatadir.empty())

return s_ethereumDatadir;

return getDefaultDataDir(_prefix);

}

fs::path dev::getDefaultDataDir(string _prefix)

{

if (_prefix.empty())

_prefix = "ethereum";

#if defined(_WIN32)

_prefix[0] = toupper(_prefix[0]);

char path[1024] = "";

if (SHGetSpecialFolderPathA(NULL, path, CSIDL_APPDATA, true))

return fs::path(path) / _prefix;

else

{

#ifndef _MSC_VER // todo?

cwarn << "getDataDir(): SHGetSpecialFolderPathA() failed.";

#endif

BOOST_THROW_EXCEPTION(std::runtime_error("getDataDir() - SHGetSpecialFolderPathA() failed."));

}

#else

fs::path dataDirPath;

char const* homeDir = getenv("HOME");

if (!homeDir || strlen(homeDir) == 0)

{

struct passwd* pwd = getpwuid(getuid());

if (pwd)

homeDir = pwd->pw_dir;

}

if (!homeDir || strlen(homeDir) == 0)

dataDirPath = fs::path("/");

else

dataDirPath = fs::path(homeDir);

return dataDirPath / ("." + _prefix);

#endif

}

fs::path dev::appendToFilename(fs::path const& _orig, string const& _suffix)

{

if (_orig.filename() == fs::path(".") || _orig.filename() == fs::path(".."))

return _orig / fs::path(_suffix);

else

return _orig.parent_path() / fs::path( _orig.filename().string() + _suffix);

}

cpp-ethereum/libdevcore/FileSystem.cpp at develop · cheny56/cpp-ethereum · GitHub

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