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RunDirectories.cc
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RunDirectories.cc
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// -*- C++ -*-
//
// RunDirectories.cc is a part of Herwig - A multi-purpose Monte Carlo event generator
// Copyright (C) 2002-2019 The Herwig Collaboration
//
// Herwig is licenced under version 3 of the GPL, see COPYING for details.
// Please respect the MCnet academic guidelines, see GUIDELINES for details.
//
#include "RunDirectories.h"
#include "ThePEG/Utilities/Exception.h"
#include "ThePEG/Handlers/SamplerBase.h"
#include "Filesystem.h"
using namespace ThePEG;
using namespace Herwig;
using std::string;
using std::list;
void RunDirectories::prefix(string p) {
if ( *p.rbegin() != '/' )
p += "/";
thePrefix() = p;
}
const string& RunDirectories::prefix() {
return thePrefix();
}
string& RunDirectories::thePrefix() {
static string p = "./Herwig-cache/";
return p;
}
string& RunDirectories::theBuildStorage() {
static string builds = "";
return builds;
}
const string& RunDirectories::buildStorage() {
if ( !theBuildStorage().empty() )
return theBuildStorage();
theBuildStorage() = prefix();
if ( theBuildStorage().empty() )
theBuildStorage() = "./Herwig-cache/";
else if ( *theBuildStorage().rbegin() != '/' )
theBuildStorage() += "/";
theBuildStorage() += "Build/";
if ( filesystem::exists(theBuildStorage()) ) {
if ( !filesystem::is_directory(theBuildStorage()) )
throw Exception() << "Herwig build storage '"
<< theBuildStorage() << "' exists but not a directory."
<< Exception::abortnow;
} else {
filesystem::create_directory(theBuildStorage());
}
return theBuildStorage();
}
bool RunDirectories::empty() {
return theRunDirectories().empty();
}
list<string>& RunDirectories::theRunDirectories() {
static list<string> rundirs;
return rundirs;
}
const string& RunDirectories::runStorage() {
if ( theRunDirectories().empty() )
throw Exception() << "No run directory stack has been allocated."
<< Exception::abortnow;
if ( filesystem::exists(theRunDirectories().front()) ) {
if ( !filesystem::is_directory(theRunDirectories().front()) )
throw Exception() << "Herwig run storage '"
<< theRunDirectories().front() << "' exists but not a directory."
<< Exception::abortnow;
} else {
filesystem::create_directory(theRunDirectories().front());
}
return theRunDirectories().front();
}
const string& RunDirectories::interfaceStorage() {
if ( SamplerBase::runLevel() == SamplerBase::IntegrationMode ||
SamplerBase::runLevel() == SamplerBase::RunMode )
return runStorage();
return buildStorage();
}
void RunDirectories::pushRunId(string p) {
if ( *p.rbegin() != '/' )
p += "/";
if ( theRunDirectories().empty() ) {
theRunDirectories().push_front(prefix() + p);
return;
}
theRunDirectories().push_front(theRunDirectories().front() + p);
}
RunDirectories::RunDirectories()
: directoriesLeft(theRunDirectories()) {}
string RunDirectories::nextRunStorage() {
if ( directoriesLeft.empty() )
throw Exception() << "No more run directories left to try."
<< Exception::abortnow;
string res = directoriesLeft.front();
directoriesLeft.pop_front();
return res;
}

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