54 lines
1.4 KiB
C++
54 lines
1.4 KiB
C++
// Copyright (c) 2006, 2007 Julio M. Merino Vidal
|
|
// Copyright (c) 2008 Ilya Sokolov, Boris Schaeling
|
|
// Copyright (c) 2009 Boris Schaeling
|
|
// Copyright (c) 2010 Felipe Tanus, Boris Schaeling
|
|
// Copyright (c) 2011, 2012 Jeff Flinn, Boris Schaeling
|
|
//
|
|
// Distributed under the Boost Software License, Version 1.0. (See accompanying
|
|
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
|
|
|
#ifndef BOOST_PROCESS_POSIX_SEARCH_PATH_HPP
|
|
#define BOOST_PROCESS_POSIX_SEARCH_PATH_HPP
|
|
|
|
#include <boost/process/config.hpp>
|
|
#include <boost/filesystem.hpp>
|
|
#include <boost/tokenizer.hpp>
|
|
#include <string>
|
|
#include <stdexcept>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
|
|
namespace boost { namespace process { namespace posix {
|
|
|
|
inline std::string search_path(const std::string &filename,
|
|
std::string path = "")
|
|
{
|
|
if (path.empty())
|
|
{
|
|
path = ::getenv("PATH");
|
|
if (path.empty())
|
|
BOOST_PROCESS_THROW(std::runtime_error(
|
|
"Environment variable PATH not found"));
|
|
}
|
|
|
|
std::string result;
|
|
typedef boost::tokenizer<boost::char_separator<char> > tokenizer;
|
|
boost::char_separator<char> sep(":");
|
|
tokenizer tok(path, sep);
|
|
for (tokenizer::iterator it = tok.begin(); it != tok.end(); ++it)
|
|
{
|
|
boost::filesystem::path p = *it;
|
|
p /= filename;
|
|
if (!::access(p.c_str(), X_OK))
|
|
{
|
|
result = p.string();
|
|
break;
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
}}}
|
|
|
|
#endif
|