HerwigCLI.cc
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	// -- C++ --
	//
	// HerwigCLI.cc is a part of Herwig - A multi-purpose Monte Carlo event generator
	// Copyright (C) 2002-2016 The Herwig Collaboration
	//
	// Herwig is licenced under version 2 of the GPL, see COPYING for details.
	// Please respect the MCnet academic guidelines, see GUIDELINES for details.
	//

	#include "HerwigCLI.h"
	#include "herwigopts.h"

	#include <ThePEG/Utilities/DynamicLoader.h>
	#include <ThePEG/Utilities/Debug.h>
	#include <ThePEG/Repository/Repository.h>
	#include <ThePEG/Handlers/SamplerBase.h>

	namespace Herwig {

	void HerwigCLI::quitWithHelp() const {
	std::cerr << gengetopt_args_info_usage << '\n';
	quit();
	}

	void HerwigCLI::quit() const {
	ThePEG::Repository::cleanup();
	exit( EXIT_FAILURE );
	}

	HerwigCLI::~HerwigCLI() {
	ThePEG::Repository::cleanup();
	}

	HerwigCLI::HerwigCLI(int argc, char * argv[])
	: runMode_(RunMode::ERROR),
	resume_(false), tics_(true), tag_(),
	inputfile_(), repository_(), setupfile_(),
	integrationList_(),
	N_(-1), seed_(0), jobs_(1),
	jobsize_(0), maxjobs_(0)
	{
	gengetopt_args_info args_info;

	if ( cmdline_parser( argc, argv, &args_info ) != 0 ) {
	std::cerr << "Could not parse command line.\n";
	return;
	}

	if ( args_info.version_given ) {
	std::cout <<
	#include "hgstamp.inc"
	"" << '\n';
	std::cout << ThePEG::Repository::version() << std::endl;
	cmdline_parser_free( &args_info );
	exit( EXIT_SUCCESS );
	}

	// require one command
	if ( args_info.inputs_num < 1 )
	quitWithHelp();

	// Define runMode of program
	std::string tmpRunMode = args_info.inputs[0];
	if ( tmpRunMode == "init" ) { runMode_ = RunMode::INIT; }
	else if ( tmpRunMode == "read" ) { runMode_ = RunMode::READ; }
	else if ( tmpRunMode == "build" ) { runMode_ = RunMode::BUILD; }
	else if ( tmpRunMode == "integrate" ) { runMode_ = RunMode::INTEGRATE; }
	else if ( tmpRunMode == "mergegrids" ) { runMode_ = RunMode::MERGEGRIDS; }
	else if ( tmpRunMode == "run" ) { runMode_ = RunMode::RUN; }
	else {
	runMode_ = RunMode::ERROR;
	quitWithHelp();
	}

	// Use second argument as input- or runfile name
	if ( args_info.inputs_num > 1 )
	inputfile_ = args_info.inputs[1];

	// Defaults for these filenames are set in the ggo file
	repository_ = args_info.repo_arg;

	// Number of events
	if ( args_info.numevents_given )
	N_ = args_info.numevents_arg;

	// RNG seed
	if ( args_info.seed_given ) {
	seed_ = args_info.seed_arg;
	}

	// run name tag (default given in ggo file)
	tag_ = args_info.tag_arg;

	// run modification file
	if ( args_info.setupfile_given )
	setupfile_ = args_info.setupfile_arg;

	// parallel jobs
	if ( args_info.jobs_given )
	jobs_ = args_info.jobs_arg;

	// Directories from which Herwig reads filesystemfor ( size_t i = 0; i < args_info.append_read_given; ++i )
	for ( size_t i = 0; i < args_info.append_read_given; ++i )
	appendReadDirectories_.push_back( args_info.append_read_arg[i] );
	for ( size_t i = 0; i < args_info.prepend_read_given; ++i )
	prependReadDirectories_.push_back( args_info.prepend_read_arg[i] );

	// Library search path for dlopen()
	for ( size_t i = 0; i < args_info.append_given; ++i )
	ThePEG::DynamicLoader::appendPath( args_info.append_arg[i] );
	for ( size_t i = 0; i < args_info.prepend_given; ++i )
	ThePEG::DynamicLoader::prependPath( args_info.prepend_arg[i] );

	// Debugging level
	if ( args_info.debug_given )
	ThePEG::Debug::setDebug( args_info.debug_arg );

	// Floating point exceptions
	if ( args_info.debug_fpe_flag )
	ThePEG::Debug::unmaskFpuErrors();

	// Exit-on-error flag
	if ( ! args_info.noexitonerror_flag )
	ThePEG::Repository::exitOnError() = 1;

	// Tics
	if ( args_info.quiet_flag )
	tics_ = false;

	// integration list
	if ( args_info.jobid_given ) {
	integrationList_ = "integrationJob" + std::string(args_info.jobid_arg);
	}

	// job size
	if ( args_info.jobsize_given ) {
	if ( runMode_ != RunMode::BUILD ) {
	std::cerr << "--jobsize option is only available in 'build' mode.\n";
	quitWithHelp();
	}
	jobsize_ = args_info.jobsize_arg;
	ThePEG::SamplerBase::setIntegratePerJob(jobsize_);
	}

	// max integration jobs
	if ( args_info.maxjobs_given ) {
	if ( runMode_ != RunMode::BUILD ) {
	std::cerr << "--maxjobs option is only available in 'build' mode.\n";
	quitWithHelp();
	}
	maxjobs_ = args_info.maxjobs_arg;
	ThePEG::SamplerBase::setIntegrationJobs(maxjobs_);
	}

	// Resume
	if ( args_info.resume_flag )
	resume_ = true;

	cmdline_parser_free( &args_info );

	}



	}

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