mysql5/mysql-5.7.27/client/base/help_options.cc

118 lines
3.5 KiB
C++

/*
Copyright (c) 2014, 2017, Oracle and/or its affiliates. All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "client_priv.h"
#include "my_default.h"
#include <sstream>
#include "help_options.h"
#include "abstract_program.h"
#include <welcome_copyright_notice.h> /* ORACLE_WELCOME_COPYRIGHT_NOTICE */
using namespace Mysql::Tools::Base::Options;
using Mysql::Tools::Base::Abstract_program;
using std::string;
extern const char *load_default_groups[];
Help_options::Help_options(Abstract_program *program)
: m_program(program)
{}
void Help_options::create_options()
{
this->create_new_option("help", "Display this help message and exit.")
->set_short_character('?')
->add_callback(new Instance_callback<void, char*, Help_options>(
this, &Help_options::help_callback));
this->create_new_option("version", "Output version information and exit.")
->set_short_character('V')
->add_callback(new Instance_callback<void, char*, Help_options>(
this, &Help_options::version_callback));
}
void Help_options::help_callback(char* argument MY_ATTRIBUTE((unused)))
{
this->print_usage();
exit(0);
}
void Help_options::version_callback(char* argument MY_ATTRIBUTE((unused)))
{
this->print_version_line();
exit(0);
}
/** A helper function. Prints the program version line. */
void Help_options::print_version_line()
{
printf("%s Ver %s Distrib %s, for %s (%s)\n",
this->m_program->get_name().c_str(),
this->m_program->get_version().c_str(),
MYSQL_SERVER_VERSION, SYSTEM_TYPE, MACHINE_TYPE);
}
void Mysql::Tools::Base::Options::Help_options::print_usage()
{
this->print_version_line();
std::ostringstream s;
s << m_program->get_first_release_year();
string first_year_str(s.str());
string copyright;
if (first_year_str == COPYRIGHT_NOTICE_CURRENT_YEAR)
{
copyright= ORACLE_WELCOME_COPYRIGHT_NOTICE(COPYRIGHT_NOTICE_CURRENT_YEAR);
}
else
{
#define FIRST_YEAR_CONSTANT "$first_year$"
string first_year_constant_str= FIRST_YEAR_CONSTANT;
copyright= ORACLE_WELCOME_COPYRIGHT_NOTICE(FIRST_YEAR_CONSTANT);
copyright= copyright.replace(copyright.find(first_year_constant_str),
first_year_constant_str.length(), first_year_str);
}
printf("%s\n%s\n",
copyright.c_str(),
this->m_program->get_description().c_str());
/*
Turn default for zombies off so that the help on how to
turn them off text won't show up.
This is safe to do since it's followed by a call to exit().
*/
for (struct my_option *optp= this->m_program->get_options_array();
optp->name; optp++)
{
if (!strcmp(optp->name, "secure-auth"))
{
optp->def_value= 0;
break;
}
}
this->m_program->short_usage();
print_defaults("my", load_default_groups);
my_print_help(this->m_program->get_options_array());
my_print_variables(this->m_program->get_options_array());
}