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/* 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 "cmd_purge.hh"
#include "resolve_cmdline.hh"
#include "resolve_common.hh"
#include "exceptions.hh"
#include <paludis/args/do_help.hh>
#include <paludis/util/stringify.hh>
#include <paludis/util/make_null_shared_ptr.hh>
#include <paludis/user_dep_spec.hh>
#include <paludis/selection.hh>
#include <paludis/generator.hh>
#include <paludis/filter.hh>
#include <paludis/filtered_generator.hh>
#include <paludis/environment.hh>
#include <paludis/package_id.hh>
#include <paludis/metadata_key.hh>
#include <iostream>
#include <cstdlib>
using namespace paludis;
using namespace cave;
using std::cout;
using std::endl;
namespace
{
struct PurgeCommandLine :
CaveCommandCommandLine
{
std::shared_ptr<ResolveCommandLineResolutionOptions> resolution_options;
std::shared_ptr<ResolveCommandLineExecutionOptions> execution_options;
std::shared_ptr<ResolveCommandLineDisplayOptions> display_options;
std::shared_ptr<ResolveCommandLineGraphJobsOptions> graph_jobs_options;
std::shared_ptr<ResolveCommandLineProgramOptions> program_options;
PurgeCommandLine(const bool for_docs) :
resolution_options(for_docs ? make_null_shared_ptr() : std::make_shared<ResolveCommandLineResolutionOptions>(this)),
execution_options(for_docs ? make_null_shared_ptr() : std::make_shared<ResolveCommandLineExecutionOptions>(this)),
display_options(for_docs ? make_null_shared_ptr() : std::make_shared<ResolveCommandLineDisplayOptions>(this)),
graph_jobs_options(for_docs ? make_null_shared_ptr() : std::make_shared<ResolveCommandLineGraphJobsOptions>(this)),
program_options(for_docs ? make_null_shared_ptr() : std::make_shared<ResolveCommandLineProgramOptions>(this))
{
add_usage_line("[ -x|--execute ]");
add_note("All options available for 'cave resolve' are also permitted. See 'man cave-resolve' for details.");
}
std::string app_name() const
{
return "cave purge";
}
std::string app_synopsis() const
{
return "Uninstall unused packages.";
}
std::string app_description() const
{
return "Uninstalls any package that is not either in 'world' or a dependency of a package "
"in 'world'.";
}
};
}
int
PurgeCommand::run(
const std::shared_ptr<Environment> & env,
const std::shared_ptr<const Sequence<std::string > > & args
)
{
PurgeCommandLine cmdline(false);
cmdline.run(args, "CAVE", "CAVE_PURGE_OPTIONS", "CAVE_PURGE_CMDLINE");
if (cmdline.a_help.specified())
{
cout << cmdline;
return EXIT_SUCCESS;
}
if (cmdline.begin_parameters() != cmdline.end_parameters())
throw args::DoHelp("purge takes no parameters");
cmdline.resolution_options->apply_shortcuts();
cmdline.resolution_options->verify(env);
cmdline.resolution_options->a_purge.set_specified(true);
cmdline.resolution_options->a_purge.add_argument("*/*");
return resolve_common(env, *cmdline.resolution_options, *cmdline.execution_options, *cmdline.display_options,
*cmdline.graph_jobs_options, *cmdline.program_options, make_null_shared_ptr(), make_null_shared_ptr(), make_null_shared_ptr(), true);
}
std::shared_ptr<args::ArgsHandler>
PurgeCommand::make_doc_cmdline()
{
return std::make_shared<PurgeCommandLine>(true);
}
CommandImportance
PurgeCommand::importance() const
{
return ci_core;
}
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