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diff --git a/src/clients/cave/cmd_print_repository_formats.cc b/src/clients/cave/cmd_print_repository_formats.cc
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+/* vim: set sw=4 sts=4 et foldmethod=syntax : */
+
+/*
+ * Copyright (c) 2009 Ingmar Vanhassel
+ *
+ * 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_print_repository_formats.hh"
+
+#include <paludis/args/args.hh>
+#include <paludis/args/do_help.hh>
+#include <paludis/repository_factory.hh>
+#include <paludis/util/make_shared_ptr.hh>
+#include <paludis/util/set.hh>
+#include <paludis/util/wrapped_forward_iterator.hh>
+#include <paludis/util/indirect_iterator-impl.hh>
+
+#include <set>
+#include <iostream>
+#include <cstdlib>
+
+#include "command_command_line.hh"
+
+using namespace paludis;
+using namespace cave;
+using std::cout;
+using std::endl;
+
+namespace
+{
+ struct PrintRepositoryFormatsCommandLine :
+ CaveCommandCommandLine
+ {
+ virtual std::string app_name() const
+ {
+ return "cave print-repository-formats";
+ }
+
+ virtual std::string app_synopsis() const
+ {
+ return "Prints a list of available repository formats.";
+ }
+
+ virtual std::string app_description() const
+ {
+ return "Prints a list of available repository formats. No formatting is used, making the output suitable for "
+ "parsing by scripts.";
+ }
+ };
+}
+
+int
+PrintRepositoryFormatsCommand::run(
+ const std::tr1::shared_ptr<Environment> &,
+ const std::tr1::shared_ptr<const Sequence<std::string > > & args
+ )
+{
+ PrintRepositoryFormatsCommandLine cmdline;
+ cmdline.run(args, "CAVE", "CAVE_PRINT_REPOSITORY_FORMATS_OPTIONS", "CAVE_PRINT_REPOSITORY_FORMATS_CMDLINE");
+
+ if (cmdline.a_help.specified())
+ {
+ cout << cmdline;
+ return EXIT_SUCCESS;
+ }
+
+ if (cmdline.begin_parameters() != cmdline.end_parameters())
+ throw args::DoHelp("print-repository-formats takes no parameters");
+
+ std::set<std::string> repository_formats(RepositoryFactory::get_instance()->begin_keys(), RepositoryFactory::get_instance()->end_keys());
+
+ if (! repository_formats.empty())
+ {
+ std::copy(repository_formats.begin(), repository_formats.end(), std::ostream_iterator<std::string>(cout, "\n"));
+ return EXIT_SUCCESS;
+ }
+
+ return EXIT_FAILURE;
+}
+
+std::tr1::shared_ptr<args::ArgsHandler>
+PrintRepositoryFormatsCommand::make_doc_cmdline()
+{
+ return make_shared_ptr(new PrintRepositoryFormatsCommandLine);
+}