64ba7d5be8
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.
97 lines
2.4 KiB
C++
97 lines
2.4 KiB
C++
/* vim: set sw=4 sts=4 et foldmethod=syntax : */
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/** \file
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*
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* Basic command line handling for most examples.
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*/
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#include "example_command_line.hh"
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#include <paludis/paludis.hh>
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#include <cstdlib>
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#include <iostream>
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using namespace paludis;
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using namespace examples;
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using std::cout;
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using std::endl;
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CommandLine::CommandLine() :
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ArgsHandler(),
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action_args(main_options_section(), "Actions",
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"Selects which basic action to perform. At most one action should "
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"be specified."),
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a_version(&action_args, "version", 'V', "Display program version", false),
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a_help(&action_args, "help", 'h', "Display program help", false),
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general_args(main_options_section(), "General options",
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"Options which are relevant for most or all actions."),
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a_log_level(&general_args, "log-level", '\0'),
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a_environment(&general_args, "environment", 'E', "Environment specification (class:suffix, both parts optional)")
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{
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}
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std::string
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CommandLine::app_name() const
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{
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return "example";
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}
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std::string
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CommandLine::app_synopsis() const
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{
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return "An example app";
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}
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std::string
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CommandLine::app_description() const
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{
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return "This is an example program.";
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}
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CommandLine::~CommandLine() = default;
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void
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examples::show_help_and_exit(const char * const argv[])
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{
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cout << "Usage: " << argv[0] << " [options]" << endl;
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cout << endl;
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cout << *CommandLine::get_instance();
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std::exit(EXIT_SUCCESS);
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}
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void
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examples::show_version_and_exit()
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{
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cout << PALUDIS_PACKAGE << " " << PALUDIS_VERSION_MAJOR << "."
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<< PALUDIS_VERSION_MINOR << "." << PALUDIS_VERSION_MICRO << PALUDIS_VERSION_SUFFIX;
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if (! std::string(PALUDIS_GIT_HEAD).empty())
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cout << " git " << PALUDIS_GIT_HEAD;
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cout << endl;
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std::exit(EXIT_SUCCESS);
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}
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void
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CommandLine::run(const int argc, const char * const * const argv, const std::string & client,
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const std::string & env_var, const std::string & env_prefix)
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{
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args::ArgsHandler::run(argc, argv, client, env_var, env_prefix);
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if (CommandLine::get_instance()->a_log_level.specified())
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Log::get_instance()->set_log_level(CommandLine::get_instance()->a_log_level.option());
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if (CommandLine::get_instance()->a_help.specified())
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show_help_and_exit(argv);
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if (CommandLine::get_instance()->a_version.specified())
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show_version_and_exit();
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}
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namespace paludis
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{
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template class Singleton<CommandLine>;
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}
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