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			152 lines
		
	
	
		
			3.5 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			152 lines
		
	
	
		
			3.5 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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	This file is part of solidity.
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	solidity is free software: you can redistribute it and/or modify
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	it under the terms of the GNU General Public License as published by
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	the Free Software Foundation, either version 3 of the License, or
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	(at your option) any later version.
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	solidity is distributed in the hope that it will be useful,
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	but WITHOUT ANY WARRANTY; without even the implied warranty of
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	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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	GNU General Public License for more details.
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	You should have received a copy of the GNU General Public License
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	along with solidity.  If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file CommonIO.cpp
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 * @author Gav Wood <i@gavwood.com>
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 * @date 2014
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 */
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#include <libsolutil/CommonIO.h>
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#include <libsolutil/Assertions.h>
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#include <boost/filesystem.hpp>
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#include <iostream>
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#include <cstdlib>
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#include <fstream>
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#if defined(_WIN32)
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#include <windows.h>
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#else
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#include <unistd.h>
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#include <termios.h>
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#endif
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using namespace std;
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using namespace solidity::util;
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namespace
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{
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template <typename T>
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inline T readFile(std::string const& _file)
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{
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	T ret;
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	size_t const c_elementSize = sizeof(typename T::value_type);
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	std::ifstream is(_file, std::ifstream::binary);
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	if (!is)
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		return ret;
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	// get length of file:
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	is.seekg(0, is.end);
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	streamoff length = is.tellg();
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	if (length == 0)
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		return ret; // do not read empty file (MSVC does not like it)
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	is.seekg(0, is.beg);
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	ret.resize((static_cast<size_t>(length) + c_elementSize - 1) / c_elementSize);
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	is.read(const_cast<char*>(reinterpret_cast<char const*>(ret.data())), length);
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	return ret;
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}
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}
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string solidity::util::readFileAsString(string const& _file)
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{
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	return readFile<string>(_file);
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}
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string solidity::util::readStandardInput()
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{
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	string ret;
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	while (!cin.eof())
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	{
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		string tmp;
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		// NOTE: this will read until EOF or NL
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		getline(cin, tmp);
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		ret.append(tmp);
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		ret.append("\n");
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	}
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	return ret;
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}
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#if defined(_WIN32)
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class DisableConsoleBuffering
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{
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public:
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	DisableConsoleBuffering()
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	{
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		m_stdin = GetStdHandle(STD_INPUT_HANDLE);
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		GetConsoleMode(m_stdin, &m_oldMode);
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		SetConsoleMode(m_stdin, m_oldMode & (~(ENABLE_ECHO_INPUT | ENABLE_LINE_INPUT)));
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	}
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	~DisableConsoleBuffering()
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	{
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		SetConsoleMode(m_stdin, m_oldMode);
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	}
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private:
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	HANDLE m_stdin;
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	DWORD m_oldMode;
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};
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#else
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class DisableConsoleBuffering
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{
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public:
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	DisableConsoleBuffering()
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	{
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		tcgetattr(0, &m_termios);
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		m_termios.c_lflag &= ~tcflag_t(ICANON);
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		m_termios.c_lflag &= ~tcflag_t(ECHO);
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		m_termios.c_cc[VMIN] = 1;
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		m_termios.c_cc[VTIME] = 0;
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		tcsetattr(0, TCSANOW, &m_termios);
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	}
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	~DisableConsoleBuffering()
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	{
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		m_termios.c_lflag |= ICANON;
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		m_termios.c_lflag |= ECHO;
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		tcsetattr(0, TCSADRAIN, &m_termios);
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	}
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private:
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	struct termios m_termios;
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};
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#endif
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int solidity::util::readStandardInputChar()
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{
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	DisableConsoleBuffering disableConsoleBuffering;
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	return cin.get();
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}
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string solidity::util::absolutePath(string const& _path, string const& _reference)
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{
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	boost::filesystem::path p(_path);
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	// Anything that does not start with `.` is an absolute path.
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	if (p.begin() == p.end() || (*p.begin() != "." && *p.begin() != ".."))
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		return _path;
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	boost::filesystem::path result(_reference);
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	result.remove_filename();
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	for (boost::filesystem::path::iterator it = p.begin(); it != p.end(); ++it)
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		if (*it == "..")
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			result = result.parent_path();
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		else if (*it != ".")
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			result /= *it;
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	return result.generic_string();
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}
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string solidity::util::sanitizePath(string const& _path) {
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	return boost::filesystem::path(_path).generic_string();
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}
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