std::string Process::BuildScript()

in nodemanager/core/Process.cpp [539:602]
46 lines of code
11 McCabe index (conditional complexity)

std::string Process::BuildScript()
{
    std::string cmd = this->taskFolder + "/cmd.sh";
    std::ofstream fsCmd(cmd, std::ios::trunc);
    fsCmd << "#!/bin/bash" << std::endl << std::endl;
    fsCmd << this->commandLine << std::endl;
    fsCmd.close();

    std::string runDirInOut = this->taskFolder + "/run_dir_in_out.sh";

    std::ofstream fs(runDirInOut, std::ios::trunc);
    fs << "#!/bin/bash" << std::endl << std::endl;
    
    Logger::Debug("{0}, {1}", this->taskFolder, this->workDirectory);

    std::string workDirectory = this->workDirectory.empty() ? "~" : this->workDirectory;
    fs << "cd " << workDirectory << " || exit $?" << std::endl << std::endl;

    if (this->stdOutFile.empty()) this->stdOutFile = this->taskFolder + "/stdout.txt";
    else if (!boost::algorithm::starts_with(this->stdOutFile, "/") && !StartWithHttpOrHttps(this->stdOutFile)) this->stdOutFile = workDirectory + "/" + this->stdOutFile;
    if (this->stdErrFile.empty()) this->stdErrFile = this->taskFolder + "/stderr.txt";
    else if (!boost::algorithm::starts_with(this->stdErrFile, "/") && !StartWithHttpOrHttps(this->stdErrFile)) this->stdErrFile = workDirectory + "/" + this->stdErrFile;

    // before
    fs << "echo before >" << this->taskFolder << "/before1.txt 2>" << this->taskFolder << "/before2.txt";
    fs << " || ([ \"$?\" = \"1\" ] && exit 253)" << std::endl;

    // test
    fs << "echo test >" << this->taskFolder << "/stdout.txt 2>" << this->taskFolder << "/stderr.txt";
    fs << " || ([ \"$?\" = \"1\" ] && exit 253)" << std::endl << std::endl;

    // run
    if (this->streamOutput)
    {
        fs << "/bin/bash " << cmd << " 2>&1";
    }
    else if (this->stdOutFile == this->stdErrFile)
    {
        fs << "/bin/bash " << cmd << " >" << this->stdOutFile << " 2>&1";
    }
    else
    {
        fs << "/bin/bash " << cmd << " >" << this->stdOutFile << " 2>" << this->stdErrFile;
    }

    if (!this->stdInFile.empty())
    {
        fs << " <" << this->stdInFile;
    }

    fs << std::endl;
    fs << "ec=$?" << std::endl;
    fs << "[ $ec -ne 0 ] && exit $ec" << std::endl;

    fs << std::endl << std::endl;

    // after
    fs << "echo after >" << this->taskFolder << "/after1.txt 2>" << this->taskFolder << "/after2.txt";
    fs << " || ([ \"$?\" = \"1\" ] && exit 253)" << std::endl;

    fs.close();

    return std::move(runDirInOut);
}