Maintenance script that displays replication lag times. More...

Inherits MediaWiki\Maintenance\Maintenance.

Collaboration diagram for GetLagTimes:

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Public Member Functions
	__construct ()
	Default constructor.

	execute ()
	Do the actual work.

Public Member Functions inherited from MediaWiki\Maintenance\Maintenance
	canExecuteWithoutLocalSettings ()
	Whether this script can run without LocalSettings.php.

	checkRequiredExtensions ()
	Verify that the required extensions are installed.

	cleanupChanneled ()
	Clean up channeled output.

	clearParamsAndArgs ()
	Clear all params and arguments.

	createChild (string $maintClass, ?string $classFile=null)
	Returns an instance of the given maintenance script, with all of the current arguments passed to it.

	finalSetup (SettingsBuilder $settingsBuilder)
	Handle some last-minute setup here.

	getConfig ()

	getDbType ()
	Does the script need different DB access? By default, we give Maintenance scripts normal rights to the DB.

	getName ()
	Get the script's name.

	getParameters ()

	isQuiet ()

	loadParamsAndArgs ( $self=null, $opts=null, $args=null)
	Process command line arguments when running as a child script.

	loadWithArgv ( $argv)
	Load params and arguments from a given array of command-line arguments.

	memoryLimit ()
	Normally we disable the memory_limit when running admin scripts.

	outputChanneled ( $msg, $channel=null)
	Message outputter with channeled message support.

	purgeRedundantText ( $delete=true)
	Support function for cleaning up redundant text records.

	runChild ( $maintClass, $classFile=null)
	Returns an instance of the given maintenance script, with all of the current arguments passed to it.

	setArg ( $argId, $value)
	Programmatically set the value of the given argument.

	setConfig (Config $config)

	setDB (IMaintainableDatabase $db)
	Sets database object to be returned by getDB().

	setLBFactory (ILBFactory $lbFactory)

	setName (string $name)

	setOption (string $name, $value)
	Programmatically set the value of the given option.

	setup ()
	Provides subclasses with an opportunity to perform initial checks.

	validateParamsAndArgs ()
	Run some validation checks on the params, etc.

Additional Inherited Members
Static Public Member Functions inherited from MediaWiki\Maintenance\Maintenance
static	getTermSize ()
	Get the terminal size as a two-element array where the first element is the width (number of columns) and the second element is the height (number of rows).

static	posix_isatty ( $fd)
	Wrapper for posix_isatty() We default as considering stdin a tty (for nice readline methods) but treating stout as not a tty to avoid color codes.

static	readconsole ( $prompt='> ')
	Prompt the console for input.

static	requireTestsAutoloader ()
	Call this to set up the autoloader to allow classes to be used from the tests directory.

Public Attributes inherited from MediaWiki\Maintenance\Maintenance
resource null	$fileHandle
	Used when creating separate schema files.

array	$orderedOptions = []
	Used to read the options in the order they were passed.

const	DB_ADMIN = 2

const	DB_NONE = 0
	Constants for DB access type.

const	DB_STD = 1

const	GENERIC_MAINTENANCE_PARAMETERS = 'Script runner options'

const	SCRIPT_DEPENDENT_PARAMETERS = 'Common options'

const	STDIN_ALL = -1

Protected Member Functions inherited from MediaWiki\Maintenance\Maintenance
	addArg ( $arg, $description, $required=true, $multi=false)
	Add some args that are needed.

	addDefaultParams ()
	Add the default parameters to the scripts.

	addDescription ( $text)
	Set the description text.

	addOption ( $name, $description, $required=false, $withArg=false, $shortName=false, $multiOccurrence=false)
	Add a parameter to the script.

	afterFinalSetup ()
	Override to perform any required operation at the end of initialisation.

	beginTransaction (IDatabase $dbw, $fname)
	Begin a transaction on a DB handle.

	beginTransactionRound ( $fname)
	Start a transactional batch of DB operations.

	commitTransaction (IDatabase $dbw, $fname)
	Commit the transaction on a DB handle and wait for replica DB servers to catch up.

	commitTransactionRound ( $fname)
	Commit a transactional batch of DB operations and wait for replica DB servers to catch up.

	countDown ( $seconds)
	Count down from $seconds to zero on the terminal, with a one-second pause between showing each number.

	deleteOption ( $name)
	Remove an option.

	error ( $err, $die=0)
	Throw an error to the user.

	fatalError ( $msg, $exitCode=1)
	Output a message and terminate the current script.

	getArg ( $argId=0, $default=null)
	Get an argument.

	getArgName (int $argId)
	Get the name of an argument.

	getArgs ( $offset=0)
	Get arguments.

	getBatchSize ()
	Returns batch size.

	getDB ( $db, $groups=[], $dbDomain=false)
	Returns a database to be used by current maintenance script.

	getDir ()
	Get the maintenance directory.

	getHookContainer ()
	Get a HookContainer, for running extension hooks or for hook metadata.

	getHookRunner ()
	Get a HookRunner for running core hooks.

	getOption ( $name, $default=null)
	Get an option, or return the default.

	getPrimaryDB ()

	getReplicaDB ()

	getServiceContainer ()
	Returns the main service container.

	getStdin ( $len=null)
	Return input from stdin.

	hasArg ( $argId=0)
	Does a given argument exist?

	hasOption ( $name)
	Checks to see if a particular option was set.

	loadSpecialVars ()
	Handle the special variables that are global to all scripts.

	maybeHelp ( $force=false)
	Maybe show the help.

	newBatchIterator ( $source)
	Wrap an entry iterator into a generator that returns batches of said entries.

	output ( $out, $channel=null)
	Throw some output to the user.

	parseIntList ( $text)
	Utility function to parse a string (perhaps from a command line option) into a list of integers (perhaps some kind of numeric IDs).

	prompt (string $prompt, ?string $default=null)

	requireExtension ( $name)
	Indicate that the specified extension must be loaded before the script can run.

	rollbackTransaction (IDatabase $dbw, $fname)
	Rollback the transaction on a DB handle.

	rollbackTransactionRound ( $fname)
	Rollback a transactional batch of DB operations.

	setAllowUnregisteredOptions ( $allow)
	Sets whether to allow unregistered options, which are options passed to a script that do not match an expected parameter.

	setBatchSize ( $s=0)

	showHelp ()
	Definitely show the help.

	supportsOption ( $name)
	Checks to see if a particular option in supported.

	validateUserOption ( $errorMsg)

	waitForReplication ()
	Wait for replica DB servers to catch up.

Protected Attributes inherited from MediaWiki\Maintenance\Maintenance
array	$mArgs = []
	This is the list of arguments that were actually passed.

int null	$mBatchSize = null
	Batch size.

string	$mDbPass = null

string	$mDbUser = null

string	$mDescription = ''
	A description of the script, children should change this via addDescription()

bool	$mInputLoaded = false
	Have we already loaded our user input?

array	$mOptions = []
	This is the list of options that were actually passed.

array[]	$mParams = []
	Empty.

bool	$mQuiet = false
	Special vars for params that are always used.

string null	$mSelf
	Name of the script currently running.

MaintenanceParameters	$parameters

Detailed Description

Maintenance script that displays replication lag times.

Definition at line 36 of file getLagTimes.php.

Constructor & Destructor Documentation

◆ __construct()

GetLagTimes::__construct ( )

Default constructor.

Children should call this first if implementing their own constructors

Stability: stable: to call

Reimplemented from MediaWiki\Maintenance\Maintenance.

Definition at line 37 of file getLagTimes.php.

References MediaWiki\Maintenance\Maintenance\addDescription(), and MediaWiki\Maintenance\Maintenance\addOption().

Member Function Documentation

◆ execute()

GetLagTimes::execute ( )

Do the actual work.

All child classes will need to implement this

Returns: bool|null|void True for success, false for failure. Not returning a value, or returning null, is also interpreted as success. Returning false for failure will cause doMaintenance.php to exit the process with a non-zero exit status.

Reimplemented from MediaWiki\Maintenance\Maintenance.

Definition at line 43 of file getLagTimes.php.

References MediaWiki\Maintenance\Maintenance\getServiceContainer(), MediaWiki\Maintenance\Maintenance\hasOption(), and MediaWiki\Maintenance\Maintenance\output().

The documentation for this class was generated from the following file:

maintenance/getLagTimes.php

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ __construct()

Member Function Documentation

◆ execute()