aboutsummaryrefslogtreecommitdiff
path: root/migrate/migrate-options.cxx
diff options
context:
space:
mode:
Diffstat (limited to 'migrate/migrate-options.cxx')
-rw-r--r--migrate/migrate-options.cxx955
1 files changed, 955 insertions, 0 deletions
diff --git a/migrate/migrate-options.cxx b/migrate/migrate-options.cxx
new file mode 100644
index 0000000..a8a4497
--- /dev/null
+++ b/migrate/migrate-options.cxx
@@ -0,0 +1,955 @@
+// -*- C++ -*-
+//
+// This file was generated by CLI, a command line interface
+// compiler for C++.
+//
+
+// Begin prologue.
+//
+//
+// End prologue.
+
+#include <migrate/migrate-options.hxx>
+
+#include <map>
+#include <set>
+#include <string>
+#include <vector>
+#include <utility>
+#include <ostream>
+#include <sstream>
+#include <cstring>
+
+namespace cli
+{
+ // unknown_option
+ //
+ unknown_option::
+ ~unknown_option () noexcept
+ {
+ }
+
+ void unknown_option::
+ print (::std::ostream& os) const
+ {
+ os << "unknown option '" << option ().c_str () << "'";
+ }
+
+ const char* unknown_option::
+ what () const noexcept
+ {
+ return "unknown option";
+ }
+
+ // unknown_argument
+ //
+ unknown_argument::
+ ~unknown_argument () noexcept
+ {
+ }
+
+ void unknown_argument::
+ print (::std::ostream& os) const
+ {
+ os << "unknown argument '" << argument ().c_str () << "'";
+ }
+
+ const char* unknown_argument::
+ what () const noexcept
+ {
+ return "unknown argument";
+ }
+
+ // missing_value
+ //
+ missing_value::
+ ~missing_value () noexcept
+ {
+ }
+
+ void missing_value::
+ print (::std::ostream& os) const
+ {
+ os << "missing value for option '" << option ().c_str () << "'";
+ }
+
+ const char* missing_value::
+ what () const noexcept
+ {
+ return "missing option value";
+ }
+
+ // invalid_value
+ //
+ invalid_value::
+ ~invalid_value () noexcept
+ {
+ }
+
+ void invalid_value::
+ print (::std::ostream& os) const
+ {
+ os << "invalid value '" << value ().c_str () << "' for option '"
+ << option ().c_str () << "'";
+
+ if (!message ().empty ())
+ os << ": " << message ().c_str ();
+ }
+
+ const char* invalid_value::
+ what () const noexcept
+ {
+ return "invalid option value";
+ }
+
+ // eos_reached
+ //
+ void eos_reached::
+ print (::std::ostream& os) const
+ {
+ os << what ();
+ }
+
+ const char* eos_reached::
+ what () const noexcept
+ {
+ return "end of argument stream reached";
+ }
+
+ // scanner
+ //
+ scanner::
+ ~scanner ()
+ {
+ }
+
+ // argv_scanner
+ //
+ bool argv_scanner::
+ more ()
+ {
+ return i_ < argc_;
+ }
+
+ const char* argv_scanner::
+ peek ()
+ {
+ if (i_ < argc_)
+ return argv_[i_];
+ else
+ throw eos_reached ();
+ }
+
+ const char* argv_scanner::
+ next ()
+ {
+ if (i_ < argc_)
+ {
+ const char* r (argv_[i_]);
+
+ if (erase_)
+ {
+ for (int i (i_ + 1); i < argc_; ++i)
+ argv_[i - 1] = argv_[i];
+
+ --argc_;
+ argv_[argc_] = 0;
+ }
+ else
+ ++i_;
+
+ ++start_position_;
+ return r;
+ }
+ else
+ throw eos_reached ();
+ }
+
+ void argv_scanner::
+ skip ()
+ {
+ if (i_ < argc_)
+ {
+ ++i_;
+ ++start_position_;
+ }
+ else
+ throw eos_reached ();
+ }
+
+ std::size_t argv_scanner::
+ position ()
+ {
+ return start_position_;
+ }
+
+ template <typename X>
+ struct parser
+ {
+ static void
+ parse (X& x, bool& xs, scanner& s)
+ {
+ using namespace std;
+
+ const char* o (s.next ());
+ if (s.more ())
+ {
+ string v (s.next ());
+ istringstream is (v);
+ if (!(is >> x && is.peek () == istringstream::traits_type::eof ()))
+ throw invalid_value (o, v);
+ }
+ else
+ throw missing_value (o);
+
+ xs = true;
+ }
+ };
+
+ template <>
+ struct parser<bool>
+ {
+ static void
+ parse (bool& x, bool& xs, scanner& s)
+ {
+ const char* o (s.next ());
+
+ if (s.more ())
+ {
+ const char* v (s.next ());
+
+ if (std::strcmp (v, "1") == 0 ||
+ std::strcmp (v, "true") == 0 ||
+ std::strcmp (v, "TRUE") == 0 ||
+ std::strcmp (v, "True") == 0)
+ x = true;
+ else if (std::strcmp (v, "0") == 0 ||
+ std::strcmp (v, "false") == 0 ||
+ std::strcmp (v, "FALSE") == 0 ||
+ std::strcmp (v, "False") == 0)
+ x = false;
+ else
+ throw invalid_value (o, v);
+ }
+ else
+ throw missing_value (o);
+
+ xs = true;
+ }
+ };
+
+ template <>
+ struct parser<std::string>
+ {
+ static void
+ parse (std::string& x, bool& xs, scanner& s)
+ {
+ const char* o (s.next ());
+
+ if (s.more ())
+ x = s.next ();
+ else
+ throw missing_value (o);
+
+ xs = true;
+ }
+ };
+
+ template <typename X>
+ struct parser<std::pair<X, std::size_t> >
+ {
+ static void
+ parse (std::pair<X, std::size_t>& x, bool& xs, scanner& s)
+ {
+ x.second = s.position ();
+ parser<X>::parse (x.first, xs, s);
+ }
+ };
+
+ template <typename X>
+ struct parser<std::vector<X> >
+ {
+ static void
+ parse (std::vector<X>& c, bool& xs, scanner& s)
+ {
+ X x;
+ bool dummy;
+ parser<X>::parse (x, dummy, s);
+ c.push_back (x);
+ xs = true;
+ }
+ };
+
+ template <typename X, typename C>
+ struct parser<std::set<X, C> >
+ {
+ static void
+ parse (std::set<X, C>& c, bool& xs, scanner& s)
+ {
+ X x;
+ bool dummy;
+ parser<X>::parse (x, dummy, s);
+ c.insert (x);
+ xs = true;
+ }
+ };
+
+ template <typename K, typename V, typename C>
+ struct parser<std::map<K, V, C> >
+ {
+ static void
+ parse (std::map<K, V, C>& m, bool& xs, scanner& s)
+ {
+ const char* o (s.next ());
+
+ if (s.more ())
+ {
+ std::size_t pos (s.position ());
+ std::string ov (s.next ());
+ std::string::size_type p = ov.find ('=');
+
+ K k = K ();
+ V v = V ();
+ std::string kstr (ov, 0, p);
+ std::string vstr (ov, (p != std::string::npos ? p + 1 : ov.size ()));
+
+ int ac (2);
+ char* av[] =
+ {
+ const_cast<char*> (o),
+ 0
+ };
+
+ bool dummy;
+ if (!kstr.empty ())
+ {
+ av[1] = const_cast<char*> (kstr.c_str ());
+ argv_scanner s (0, ac, av, false, pos);
+ parser<K>::parse (k, dummy, s);
+ }
+
+ if (!vstr.empty ())
+ {
+ av[1] = const_cast<char*> (vstr.c_str ());
+ argv_scanner s (0, ac, av, false, pos);
+ parser<V>::parse (v, dummy, s);
+ }
+
+ m[k] = v;
+ }
+ else
+ throw missing_value (o);
+
+ xs = true;
+ }
+ };
+
+ template <typename K, typename V, typename C>
+ struct parser<std::multimap<K, V, C> >
+ {
+ static void
+ parse (std::multimap<K, V, C>& m, bool& xs, scanner& s)
+ {
+ const char* o (s.next ());
+
+ if (s.more ())
+ {
+ std::size_t pos (s.position ());
+ std::string ov (s.next ());
+ std::string::size_type p = ov.find ('=');
+
+ K k = K ();
+ V v = V ();
+ std::string kstr (ov, 0, p);
+ std::string vstr (ov, (p != std::string::npos ? p + 1 : ov.size ()));
+
+ int ac (2);
+ char* av[] =
+ {
+ const_cast<char*> (o),
+ 0
+ };
+
+ bool dummy;
+ if (!kstr.empty ())
+ {
+ av[1] = const_cast<char*> (kstr.c_str ());
+ argv_scanner s (0, ac, av, false, pos);
+ parser<K>::parse (k, dummy, s);
+ }
+
+ if (!vstr.empty ())
+ {
+ av[1] = const_cast<char*> (vstr.c_str ());
+ argv_scanner s (0, ac, av, false, pos);
+ parser<V>::parse (v, dummy, s);
+ }
+
+ m.insert (typename std::multimap<K, V, C>::value_type (k, v));
+ }
+ else
+ throw missing_value (o);
+
+ xs = true;
+ }
+ };
+
+ template <typename X, typename T, T X::*M>
+ void
+ thunk (X& x, scanner& s)
+ {
+ parser<T>::parse (x.*M, s);
+ }
+
+ template <typename X, bool X::*M>
+ void
+ thunk (X& x, scanner& s)
+ {
+ s.next ();
+ x.*M = true;
+ }
+
+ template <typename X, typename T, T X::*M, bool X::*S>
+ void
+ thunk (X& x, scanner& s)
+ {
+ parser<T>::parse (x.*M, x.*S, s);
+ }
+}
+
+#include <map>
+
+// options
+//
+
+options::
+options ()
+: recreate_ (),
+ drop_ (),
+ db_user_ (),
+ db_user_specified_ (false),
+ db_password_ (),
+ db_password_specified_ (false),
+ db_name_ (),
+ db_name_specified_ (false),
+ db_host_ (),
+ db_host_specified_ (false),
+ db_port_ (0),
+ db_port_specified_ (false),
+ pager_ (),
+ pager_specified_ (false),
+ pager_option_ (),
+ pager_option_specified_ (false),
+ help_ (),
+ version_ ()
+{
+}
+
+options::
+options (int& argc,
+ char** argv,
+ bool erase,
+ ::cli::unknown_mode opt,
+ ::cli::unknown_mode arg)
+: recreate_ (),
+ drop_ (),
+ db_user_ (),
+ db_user_specified_ (false),
+ db_password_ (),
+ db_password_specified_ (false),
+ db_name_ (),
+ db_name_specified_ (false),
+ db_host_ (),
+ db_host_specified_ (false),
+ db_port_ (0),
+ db_port_specified_ (false),
+ pager_ (),
+ pager_specified_ (false),
+ pager_option_ (),
+ pager_option_specified_ (false),
+ help_ (),
+ version_ ()
+{
+ ::cli::argv_scanner s (argc, argv, erase);
+ _parse (s, opt, arg);
+}
+
+options::
+options (int start,
+ int& argc,
+ char** argv,
+ bool erase,
+ ::cli::unknown_mode opt,
+ ::cli::unknown_mode arg)
+: recreate_ (),
+ drop_ (),
+ db_user_ (),
+ db_user_specified_ (false),
+ db_password_ (),
+ db_password_specified_ (false),
+ db_name_ (),
+ db_name_specified_ (false),
+ db_host_ (),
+ db_host_specified_ (false),
+ db_port_ (0),
+ db_port_specified_ (false),
+ pager_ (),
+ pager_specified_ (false),
+ pager_option_ (),
+ pager_option_specified_ (false),
+ help_ (),
+ version_ ()
+{
+ ::cli::argv_scanner s (start, argc, argv, erase);
+ _parse (s, opt, arg);
+}
+
+options::
+options (int& argc,
+ char** argv,
+ int& end,
+ bool erase,
+ ::cli::unknown_mode opt,
+ ::cli::unknown_mode arg)
+: recreate_ (),
+ drop_ (),
+ db_user_ (),
+ db_user_specified_ (false),
+ db_password_ (),
+ db_password_specified_ (false),
+ db_name_ (),
+ db_name_specified_ (false),
+ db_host_ (),
+ db_host_specified_ (false),
+ db_port_ (0),
+ db_port_specified_ (false),
+ pager_ (),
+ pager_specified_ (false),
+ pager_option_ (),
+ pager_option_specified_ (false),
+ help_ (),
+ version_ ()
+{
+ ::cli::argv_scanner s (argc, argv, erase);
+ _parse (s, opt, arg);
+ end = s.end ();
+}
+
+options::
+options (int start,
+ int& argc,
+ char** argv,
+ int& end,
+ bool erase,
+ ::cli::unknown_mode opt,
+ ::cli::unknown_mode arg)
+: recreate_ (),
+ drop_ (),
+ db_user_ (),
+ db_user_specified_ (false),
+ db_password_ (),
+ db_password_specified_ (false),
+ db_name_ (),
+ db_name_specified_ (false),
+ db_host_ (),
+ db_host_specified_ (false),
+ db_port_ (0),
+ db_port_specified_ (false),
+ pager_ (),
+ pager_specified_ (false),
+ pager_option_ (),
+ pager_option_specified_ (false),
+ help_ (),
+ version_ ()
+{
+ ::cli::argv_scanner s (start, argc, argv, erase);
+ _parse (s, opt, arg);
+ end = s.end ();
+}
+
+options::
+options (::cli::scanner& s,
+ ::cli::unknown_mode opt,
+ ::cli::unknown_mode arg)
+: recreate_ (),
+ drop_ (),
+ db_user_ (),
+ db_user_specified_ (false),
+ db_password_ (),
+ db_password_specified_ (false),
+ db_name_ (),
+ db_name_specified_ (false),
+ db_host_ (),
+ db_host_specified_ (false),
+ db_port_ (0),
+ db_port_specified_ (false),
+ pager_ (),
+ pager_specified_ (false),
+ pager_option_ (),
+ pager_option_specified_ (false),
+ help_ (),
+ version_ ()
+{
+ _parse (s, opt, arg);
+}
+
+::cli::usage_para options::
+print_usage (::std::ostream& os, ::cli::usage_para p)
+{
+ CLI_POTENTIALLY_UNUSED (os);
+
+ if (p != ::cli::usage_para::none)
+ os << ::std::endl;
+
+ os << "\033[1mOPTIONS\033[0m" << ::std::endl;
+
+ os << std::endl
+ << "\033[1m--recreate\033[0m Recreate the database schema (all the existing data will be" << ::std::endl
+ << " lost)." << ::std::endl;
+
+ os << std::endl
+ << "\033[1m--drop\033[0m Drop the database schema (all the existing data will be" << ::std::endl
+ << " lost)." << ::std::endl;
+
+ os << std::endl
+ << "\033[1m--db-user\033[0m|\033[1m-u\033[0m \033[4muser\033[0m Database user name. If not specified, then operating system" << ::std::endl
+ << " (login) name is used." << ::std::endl;
+
+ os << std::endl
+ << "\033[1m--db-password\033[0m \033[4mpass\033[0m Database password. If not specified, then login without" << ::std::endl
+ << " password is expected to work." << ::std::endl;
+
+ os << std::endl
+ << "\033[1m--db-name\033[0m|\033[1m-n\033[0m \033[4mname\033[0m Database name. If not specified, then it is implicitly" << ::std::endl
+ << " derived by prefixing the schema name with \033[1mbrep_\033[0m." << ::std::endl;
+
+ os << std::endl
+ << "\033[1m--db-host\033[0m|\033[1m-h\033[0m \033[4mhost\033[0m Database host name, address, or socket. If not specified," << ::std::endl
+ << " then connect to \033[1mlocalhost\033[0m using the operating system-default" << ::std::endl
+ << " mechanism (Unix-domain socket, etc)." << ::std::endl;
+
+ os << std::endl
+ << "\033[1m--db-port\033[0m|\033[1m-p\033[0m \033[4mport\033[0m Database port number. If not specified, the default port is" << ::std::endl
+ << " used." << ::std::endl;
+
+ os << std::endl
+ << "\033[1m--pager\033[0m \033[4mpath\033[0m The pager program to be used to show long text. Commonly" << ::std::endl
+ << " used pager programs are \033[1mless\033[0m and \033[1mmore\033[0m. You can also specify" << ::std::endl
+ << " additional options that should be passed to the pager" << ::std::endl
+ << " program with \033[1m--pager-option\033[0m. If an empty string is specified" << ::std::endl
+ << " as the pager program, then no pager will be used. If the" << ::std::endl
+ << " pager program is not explicitly specified, then" << ::std::endl
+ << " \033[1mbrep-migrate\033[0m will try to use \033[1mless\033[0m. If it is not available," << ::std::endl
+ << " then no pager will be used." << ::std::endl;
+
+ os << std::endl
+ << "\033[1m--pager-option\033[0m \033[4mopt\033[0m Additional option to be passed to the pager program. See" << ::std::endl
+ << " \033[1m--pager\033[0m for more information on the pager program. Repeat" << ::std::endl
+ << " this option to specify multiple pager options." << ::std::endl;
+
+ os << std::endl
+ << "\033[1m--help\033[0m Print usage information and exit." << ::std::endl;
+
+ os << std::endl
+ << "\033[1m--version\033[0m Print version and exit." << ::std::endl;
+
+ p = ::cli::usage_para::option;
+
+ return p;
+}
+
+typedef
+std::map<std::string, void (*) (options&, ::cli::scanner&)>
+_cli_options_map;
+
+static _cli_options_map _cli_options_map_;
+
+struct _cli_options_map_init
+{
+ _cli_options_map_init ()
+ {
+ _cli_options_map_["--recreate"] =
+ &::cli::thunk< options, &options::recreate_ >;
+ _cli_options_map_["--drop"] =
+ &::cli::thunk< options, &options::drop_ >;
+ _cli_options_map_["--db-user"] =
+ &::cli::thunk< options, std::string, &options::db_user_,
+ &options::db_user_specified_ >;
+ _cli_options_map_["-u"] =
+ &::cli::thunk< options, std::string, &options::db_user_,
+ &options::db_user_specified_ >;
+ _cli_options_map_["--db-password"] =
+ &::cli::thunk< options, std::string, &options::db_password_,
+ &options::db_password_specified_ >;
+ _cli_options_map_["--db-name"] =
+ &::cli::thunk< options, std::string, &options::db_name_,
+ &options::db_name_specified_ >;
+ _cli_options_map_["-n"] =
+ &::cli::thunk< options, std::string, &options::db_name_,
+ &options::db_name_specified_ >;
+ _cli_options_map_["--db-host"] =
+ &::cli::thunk< options, std::string, &options::db_host_,
+ &options::db_host_specified_ >;
+ _cli_options_map_["-h"] =
+ &::cli::thunk< options, std::string, &options::db_host_,
+ &options::db_host_specified_ >;
+ _cli_options_map_["--db-port"] =
+ &::cli::thunk< options, std::uint16_t, &options::db_port_,
+ &options::db_port_specified_ >;
+ _cli_options_map_["-p"] =
+ &::cli::thunk< options, std::uint16_t, &options::db_port_,
+ &options::db_port_specified_ >;
+ _cli_options_map_["--pager"] =
+ &::cli::thunk< options, std::string, &options::pager_,
+ &options::pager_specified_ >;
+ _cli_options_map_["--pager-option"] =
+ &::cli::thunk< options, std::vector<std::string>, &options::pager_option_,
+ &options::pager_option_specified_ >;
+ _cli_options_map_["--help"] =
+ &::cli::thunk< options, &options::help_ >;
+ _cli_options_map_["--version"] =
+ &::cli::thunk< options, &options::version_ >;
+ }
+};
+
+static _cli_options_map_init _cli_options_map_init_;
+
+bool options::
+_parse (const char* o, ::cli::scanner& s)
+{
+ _cli_options_map::const_iterator i (_cli_options_map_.find (o));
+
+ if (i != _cli_options_map_.end ())
+ {
+ (*(i->second)) (*this, s);
+ return true;
+ }
+
+ return false;
+}
+
+bool options::
+_parse (::cli::scanner& s,
+ ::cli::unknown_mode opt_mode,
+ ::cli::unknown_mode arg_mode)
+{
+ // Can't skip combined flags (--no-combined-flags).
+ //
+ assert (opt_mode != ::cli::unknown_mode::skip);
+
+ bool r = false;
+ bool opt = true;
+
+ while (s.more ())
+ {
+ const char* o = s.peek ();
+
+ if (std::strcmp (o, "--") == 0)
+ {
+ opt = false;
+ s.skip ();
+ r = true;
+ continue;
+ }
+
+ if (opt)
+ {
+ if (_parse (o, s))
+ {
+ r = true;
+ continue;
+ }
+
+ if (std::strncmp (o, "-", 1) == 0 && o[1] != '\0')
+ {
+ // Handle combined option values.
+ //
+ std::string co;
+ if (const char* v = std::strchr (o, '='))
+ {
+ co.assign (o, 0, v - o);
+ ++v;
+
+ int ac (2);
+ char* av[] =
+ {
+ const_cast<char*> (co.c_str ()),
+ const_cast<char*> (v)
+ };
+
+ ::cli::argv_scanner ns (0, ac, av);
+
+ if (_parse (co.c_str (), ns))
+ {
+ // Parsed the option but not its value?
+ //
+ if (ns.end () != 2)
+ throw ::cli::invalid_value (co, v);
+
+ s.next ();
+ r = true;
+ continue;
+ }
+ else
+ {
+ // Set the unknown option and fall through.
+ //
+ o = co.c_str ();
+ }
+ }
+
+ // Handle combined flags.
+ //
+ char cf[3];
+ {
+ const char* p = o + 1;
+ for (; *p != '\0'; ++p)
+ {
+ if (!((*p >= 'a' && *p <= 'z') ||
+ (*p >= 'A' && *p <= 'Z') ||
+ (*p >= '0' && *p <= '9')))
+ break;
+ }
+
+ if (*p == '\0')
+ {
+ for (p = o + 1; *p != '\0'; ++p)
+ {
+ std::strcpy (cf, "-");
+ cf[1] = *p;
+ cf[2] = '\0';
+
+ int ac (1);
+ char* av[] =
+ {
+ cf
+ };
+
+ ::cli::argv_scanner ns (0, ac, av);
+
+ if (!_parse (cf, ns))
+ break;
+ }
+
+ if (*p == '\0')
+ {
+ // All handled.
+ //
+ s.next ();
+ r = true;
+ continue;
+ }
+ else
+ {
+ // Set the unknown option and fall through.
+ //
+ o = cf;
+ }
+ }
+ }
+
+ switch (opt_mode)
+ {
+ case ::cli::unknown_mode::skip:
+ {
+ s.skip ();
+ r = true;
+ continue;
+ }
+ case ::cli::unknown_mode::stop:
+ {
+ break;
+ }
+ case ::cli::unknown_mode::fail:
+ {
+ throw ::cli::unknown_option (o);
+ }
+ }
+
+ break;
+ }
+ }
+
+ switch (arg_mode)
+ {
+ case ::cli::unknown_mode::skip:
+ {
+ s.skip ();
+ r = true;
+ continue;
+ }
+ case ::cli::unknown_mode::stop:
+ {
+ break;
+ }
+ case ::cli::unknown_mode::fail:
+ {
+ throw ::cli::unknown_argument (o);
+ }
+ }
+
+ break;
+ }
+
+ return r;
+}
+
+::cli::usage_para
+print_usage (::std::ostream& os, ::cli::usage_para p)
+{
+ CLI_POTENTIALLY_UNUSED (os);
+
+ if (p != ::cli::usage_para::none)
+ os << ::std::endl;
+
+ os << "\033[1mSYNOPSIS\033[0m" << ::std::endl
+ << ::std::endl
+ << "\033[1mbrep-migrate --help\033[0m" << ::std::endl
+ << "\033[1mbrep-migrate --version\033[0m" << ::std::endl
+ << "\033[1mbrep-migrate\033[0m [\033[4moptions\033[0m] \033[4mschema\033[0m\033[0m" << ::std::endl
+ << ::std::endl
+ << "\033[1mDESCRIPTION\033[0m" << ::std::endl
+ << ::std::endl
+ << "In its default mode \033[1mbrep-migrate\033[0m creates the database schema if it doesn't" << ::std::endl
+ << "already exist. Otherwise, it migrates the existing schema and data to the" << ::std::endl
+ << "current version, if needed. The valid schema names are \033[1mpackage\033[0m and \033[1mbuild\033[0m." << ::std::endl
+ << ::std::endl
+ << "If the \033[1m--recreate\033[0m option is specified, then \033[1mbrep-migrate\033[0m instead recreates the" << ::std::endl
+ << "database schema. That is, it drops all the existing tables (and their data) and" << ::std::endl
+ << "then creates them from scratch." << ::std::endl
+ << ::std::endl
+ << "If the \033[1m--drop\033[0m option is specified, then \033[1mbrep-migrate\033[0m drops all the existing" << ::std::endl
+ << "tables (and their data)." << ::std::endl
+ << ::std::endl
+ << "The \033[1m--recreate\033[0m and \033[1m--drop\033[0m options are mutually exclusive. When specified, they" << ::std::endl
+ << "will cause \033[1mbrep-migrate\033[0m to fail if the database schema requires migration. In" << ::std::endl
+ << "this case you can either migrate the database first or drop the entire database" << ::std::endl
+ << "using, for example, \033[1mpsql(1)\033[0m." << ::std::endl;
+
+ p = ::options::print_usage (os, ::cli::usage_para::text);
+
+ if (p != ::cli::usage_para::none)
+ os << ::std::endl;
+
+ os << "\033[1mEXIT STATUS\033[0m" << ::std::endl
+ << ::std::endl
+ << "\033[1m0\033[0m" << ::std::endl
+ << " Success." << ::std::endl
+ << "\033[1m1\033[0m" << ::std::endl
+ << " Fatal error." << ::std::endl
+ << "\033[1m2\033[0m" << ::std::endl
+ << " An instance of \033[1mbrep-migrate\033[0m or some other \033[1mbrep\033[0m utility is already running." << ::std::endl
+ << " Try again." << ::std::endl
+ << "\033[1m3\033[0m" << ::std::endl
+ << " Recoverable database error. Try again." << ::std::endl;
+
+ p = ::cli::usage_para::text;
+
+ return p;
+}
+
+// Begin epilogue.
+//
+//
+// End epilogue.
+