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#ifndef _EXECUTOR_H_
#define _EXECUTOR_H_
/**
* \file executor.h
*
* Copyright (C) 2015 Andreas Altair Redmer, <altair.ibn.la.ahad.sy@gmail.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of one of the following licenses:
*
* \li 1. GNU Lesser General Public License, version 2.1 (see LICENSE-LGPL)
* \li 2. GNU General Public License, version 2 (see LICENSE-GPL)
*
* If you want to help with choosing the best license for you,
* please visit http://www.gnu.org/licenses/license-list.html.
*
*/
#include <iostream>
#include <string>
#include <vector>
#include <sstream>
class Executor
{
private:
inline static std::string trim_right_copy(
const std::string& s,
const std::string& delimiters = " \f\n\r\t\v" )
{
//cout << "trc" << endl;
if (s.length()==0)
return "";
//cout << "trc" <<s.find_last_not_of( delimiters ) + 1 << endl;
return s.substr( 0, s.find_last_not_of( delimiters ) + 1 );
}
inline static std::string trim_left_copy(
const std::string& s,
const std::string& delimiters = " \f\n\r\t\v" )
{
//cout << "tlc" << endl;
if (s.length()==0)
return "";
//cout << "tlc" << s.find_first_not_of( delimiters ) << " -- "<< delimiters << endl;
return s.substr( s.find_first_not_of( delimiters ) );
}
inline static std::string trim_copy(
const std::string& s,
const std::string& delimiters = " \f\n\r\t\v\'\"-" )
{
//cout << "tc" << endl;
if (s.length()==0)
return "";
return trim_left_copy( trim_right_copy( s, delimiters ), delimiters );
}
public:
// static std::string plain_exec(std::string cmd)
// {
// return plain_exec(cmd.c_str());
// }
static std::string plain_exec(char* cmd)
{
//cout << "plain_exec " <<cmd<< endl;
FILE* pipe = popen(cmd, "r");
if (!pipe) return "EXECPIPEERROR";
char buffer[128];
std::string result = "";
while(!feof(pipe)) {
if(fgets(buffer, 128, pipe) != NULL)
result += buffer;
}
pclose(pipe);
//cout << "plain_exec end" << endl;
//return result;
return trim_copy(result);
}
// static const vector<string> execBashVec (string script);
// static const string execBash (string script);
static const std::vector<std::string> execBashVec (std::string script)
{
std::string s = execBash (script);
// from split
std::vector<std::string> elems;
std::stringstream ss(s);
std::string item;
while (std::getline(ss, item, '\n')) {
elems.push_back(item);
}
return elems;
}
static const std::string execBash (std::string script)
{
//cout << "execBash: " << script << endl;
std::string ret = plain_exec ((char*) script.c_str());
return ret;
}
// TODO make not stupid: no boost, no cli dependeny, no c++14 (for now)
// suppression of warning for not existign directories added
/**
*Returns all subdirectories of the dirctory 'dir' as vector of strings.
*/
static const std::vector<std::string> getSubDirVec (std::string dir, bool includeDotDirs=false)
{
return execBashVec("find "+dir+" -type d "+ (includeDotDirs?std::string():std::string("! -path '*/.*' ")) +"2>/dev/null");
}
/**
*Returns all files in case the file decriptor contains a star.
*/
static const std::vector<std::string> getAllFilesByDescriptor (std::string dir, bool includeDotDirs=false)
{
return execBashVec("find "+dir+" "+ (includeDotDirs?std::string():std::string("! -path '*/.*' ")) +"2>/dev/null");
}
};
#endif //_EXECUTOR_H_
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