File SystemUtils.h¶

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// >>>>>>>>>>>>>>>>>>>>> BEGINNING OF LEGAL NOTICE >>>>>>>>>>>>>>>>>>>>>
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//
// This source file, along with its associated content, was authored by
// Andrea Settimi, Hong-Bin Yang, Naravich Chutisilp, and numerous other
// contributors. The code was originally developed at the Laboratory for
// Timber Construction (IBOIS, director: Prof. Yves Weinand) at the School of 
// Architecture, Civil and Environmental Engineering (ENAC) at the Swiss
// Federal Institute of Technology in Lausanne (EPFL) for the Doctoral
// Research "Augmented Carpentry" (PhD researcher: Andrea Settimi,
// co-director: Dr. Julien Gamerro, director: Prof. Yves Weinand).
//
// Although the entire repository is distributed under the GPL license,
// these particular source files may also be used under the terms of the
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#pragma once

#include <cstdio>
#include <iostream>
#include <memory>
#include <stdexcept>
#include <string>
#include <array>

// ref: https://stackoverflow.com/questions/478898/how-do-i-execute-a-command-and-get-the-output-of-the-command-within-c-using-po
std::string ExecuteSystemCommand(const char* cmd) {
    std::array<char, 128> buffer;
    std::string result;
    std::unique_ptr<FILE, decltype(&pclose)> pipe(popen(cmd, "r"), pclose);
    if (!pipe) {
        throw std::runtime_error("popen() failed!");
    }
    while (fgets(buffer.data(), static_cast<int>(buffer.size()), pipe.get()) != nullptr) {
        result += buffer.data();
    }

    return result;
}