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// file : migrate/migrate.cli
// copyright : Copyright (c) 2014-2017 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
include <vector>;
include <string>;
include <cstdint>; // uint16_t
"\section=1"
"\name=brep-migrate"
"\summary=create/drop/migrate brep databases"
{
"<options> <schema>",
"\h|SYNOPSIS|
\c{\b{brep-migrate --help}\n
\b{brep-migrate --version}\n
\b{brep-migrate} [<options>] <schema>}
\h|DESCRIPTION|
In its default mode \cb{brep-migrate} creates the database schema if it
doesn't already exist. Otherwise, it migrates the existing schema and data
to the current version, if needed. The valid schema names are \cb{package}
and \cb{build}.
If the \cb{--recreate} option is specified, then \cb{brep-migrate} instead
recreates the database schema. That is, it drops all the existing tables
(and their data) and then creates them from scratch.
If the \cb{--drop} option is specified, then \cb{brep-migrate} drops all the
existing tables (and their data).
The \cb{--recreate} and \cb{--drop} options are mutually exclusive. When
specified, they will cause \cb{brep-migrate} to fail if the database schema
requires migration. In this case you can either migrate the database first
or drop the entire database using, for example, \cb{psql(1)}."
}
class options
{
"\h|OPTIONS|"
bool --recreate
{
"Recreate the database schema (all the existing data will be lost)."
}
bool --drop
{
"Drop the database schema (all the existing data will be lost)."
}
std::string --db-user|-u
{
"<user>",
"Database user name. If not specified, then operating system (login)
name is used."
}
std::string --db-password
{
"<pass>",
"Database password. If not specified, then login without password is
expected to work."
}
std::string --db-name|-n
{
"<name>",
"Database name. If not specified, then it is implicitly derived by
prefixing the schema name with \cb{brep_}."
}
std::string --db-host|-h
{
"<host>",
"Database host name, address, or socket. If not specified, then connect
to \cb{localhost} using the operating system-default mechanism
(Unix-domain socket, etc)."
}
std::uint16_t --db-port|-p = 0
{
"<port>",
"Database port number. If not specified, the default port is used."
}
std::string --pager // String to allow empty value.
{
"<path>",
"The pager program to be used to show long text. Commonly used pager
programs are \cb{less} and \cb{more}. You can also specify additional
options that should be passed to the pager program with
\cb{--pager-option}. If an empty string is specified as the pager
program, then no pager will be used. If the pager program is not
explicitly specified, then \cb{brep-migrate} will try to use \cb{less}.
If it is not available, then no pager will be used."
}
std::vector<std::string> --pager-option
{
"<opt>",
"Additional option to be passed to the pager program. See \cb{--pager}
for more information on the pager program. Repeat this option to
specify multiple pager options."
}
bool --help {"Print usage information and exit."}
bool --version {"Print version and exit."}
};
"\h|EXIT STATUS|
\dl|
\li|\cb{0}
Success.|
\li|\cb{1}
Fatal error.|
\li|\cb{2}
An instance of \cb{brep-migrate} or \l{brep-load(1)} is already running. Try
again.|
\li|\cb{3}
Recoverable database error. Try again.||
"
|
