Exheredludis/paludis/repositories/e/make_use.cc
2011-04-12 14:45:22 +01:00

119 lines
4.1 KiB
C++

/* vim: set sw=4 sts=4 et foldmethod=syntax : */
/*
* Copyright (c) 2010, 2011 Ciaran McCreesh
*
* This file is part of the Paludis package manager. Paludis is free software;
* you can redistribute it and/or modify it under the terms of the GNU General
* Public License version 2, as published by the Free Software Foundation.
*
* Paludis is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
* Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <paludis/repositories/e/make_use.hh>
#include <paludis/repositories/e/eapi.hh>
#include <paludis/util/log.hh>
#include <paludis/choice.hh>
#include <paludis/metadata_key.hh>
#include <paludis/elike_choices.hh>
#include <algorithm>
using namespace paludis;
using namespace paludis::erepository;
std::string
paludis::erepository::make_use(const Environment * const,
const ERepositoryID & id,
std::shared_ptr<const Profile> profile)
{
if (! id.eapi()->supported())
{
Log::get_instance()->message("e.ebuild.unknown_eapi", ll_warning, lc_context)
<< "Can't make the USE string for '" << id << "' because its EAPI is unsupported";
return "";
}
std::string use;
if (id.choices_key())
{
auto choices(id.choices_key()->parse_value());
for (Choices::ConstIterator k(choices->begin()), k_end(choices->end()) ;
k != k_end ; ++k)
{
if ((*k)->prefix() == canonical_build_options_prefix())
continue;
for (Choice::ConstIterator i((*k)->begin()), i_end((*k)->end()) ;
i != i_end ; ++i)
if ((*i)->enabled())
use += stringify((*i)->name_with_prefix()) + " ";
}
}
if (! id.eapi()->supported()->ebuild_environment_variables()->env_arch().empty())
use += profile->environment_variable(id.eapi()->supported()->ebuild_environment_variables()->env_arch()) + " ";
return use;
}
std::shared_ptr<Map<std::string, std::string> >
paludis::erepository::make_expand(const Environment * const,
const ERepositoryID & e,
std::shared_ptr<const Profile> profile)
{
std::shared_ptr<Map<std::string, std::string> > expand_vars(std::make_shared<Map<std::string, std::string> >());
if (! e.eapi()->supported())
{
Log::get_instance()->message("e.ebuild.unknown_eapi", ll_warning, lc_context)
<< "Can't make the USE_EXPAND strings for '" << e << "' because its EAPI is unsupported";
return expand_vars;
}
if (! e.choices_key())
return expand_vars;
auto choices(e.choices_key()->parse_value());
for (Set<std::string>::ConstIterator x(profile->use_expand()->begin()), x_end(profile->use_expand()->end()) ;
x != x_end ; ++x)
{
expand_vars->insert(stringify(*x), "");
Choices::ConstIterator k(std::find_if(choices->begin(), choices->end(),
std::bind(std::equal_to<std::string>(), *x,
std::bind(std::mem_fn(&Choice::raw_name), std::placeholders::_1))));
if (k == choices->end())
continue;
for (Choice::ConstIterator i((*k)->begin()), i_end((*k)->end()) ;
i != i_end ; ++i)
if ((*i)->enabled())
{
std::string value;
Map<std::string, std::string>::ConstIterator v(expand_vars->find(stringify(*x)));
if (expand_vars->end() != v)
{
value = v->second;
if (! value.empty())
value.append(" ");
expand_vars->erase(v);
}
value.append(stringify((*i)->unprefixed_name()));
expand_vars->insert(stringify(*x), value);
}
}
return expand_vars;
}