Exheredludis/paludis/distribution.cc
Saleem Abdulrasool 64ba7d5be8 modernize: use default method synthesis
Convert a number of destructors to default synthesized functions.  Try to
inline a few instances into the header.  It should be possible to inline all of
them, however, gcc seems to emit a number of warnings.  Furthermore, some of the
destructors are pure-virtualed, but provide an implementation.  Placing the
definition into the header causes ODR violations.
2016-08-06 11:58:04 -07:00

104 lines
3.8 KiB
C++

/* vim: set sw=4 sts=4 et foldmethod=syntax : */
/*
* Copyright (c) 2007, 2008, 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/distribution-impl.hh>
#include <paludis/util/config_file.hh>
#include <paludis/util/destringify.hh>
#include <paludis/util/hashes.hh>
#include <paludis/util/is_file_with_extension.hh>
#include <paludis/util/make_named_values.hh>
#include <paludis/util/pimp-impl.hh>
#include <paludis/util/singleton-impl.hh>
#include <paludis/util/stringify.hh>
#include <paludis/util/strip.hh>
#include <paludis/util/system.hh>
#include <paludis/util/fs_iterator.hh>
#include <paludis/util/env_var_names.hh>
#include <unordered_map>
using namespace paludis;
DistributionConfigurationError::DistributionConfigurationError(const std::string & s) noexcept :
ConfigurationError("Distribution configuration error: " + s)
{
}
typedef std::unordered_map<std::string, std::shared_ptr<const Distribution>, Hash<std::string> > DistributionHash;
namespace paludis
{
template <>
struct Imp<DistributionData>
{
DistributionHash values;
Imp()
{
Context c("When loading distribution data:");
for (FSIterator d(FSPath(getenv_with_default(env_vars::distributions_dir, DATADIR "/paludis/distributions")), { }), d_end ;
d != d_end ; ++d)
{
if (! is_file_with_extension(*d, ".conf", { }))
continue;
Context cc("When loading distribution file '" + stringify(*d) + "':");
KeyValueConfigFile k(*d, { }, &KeyValueConfigFile::no_defaults, &KeyValueConfigFile::no_transformation);
values.insert(std::make_pair(strip_trailing_string(d->basename(), ".conf"),
std::make_shared<Distribution>(make_named_values<Distribution>(
n::concept_keyword() = k.get("concept_keyword"),
n::concept_license() = k.get("concept_license"),
n::concept_use() = k.get("concept_use"),
n::default_environment() = k.get("default_environment"),
n::extra_data_dir() = FSPath(strip_trailing_string(stringify(d->realpath()), ".conf")),
n::fallback_environment() = k.get("fallback_environment"),
n::name() = strip_trailing_string(d->basename(), ".conf"),
n::paludis_package() = k.get("paludis_package")
))));
}
}
};
}
DistributionData::DistributionData() :
_imp()
{
}
DistributionData::~DistributionData() = default;
std::shared_ptr<const Distribution>
DistributionData::distribution_from_string(const std::string & s) const
{
DistributionHash::const_iterator i(_imp->values.find(s));
if (i == _imp->values.end())
throw DistributionConfigurationError("No distribution configuration found for '" + s + "'");
else
return i->second;
}
namespace paludis
{
template class Singleton<DistributionData>;
}