userOptions.php

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<?php
require_once __DIR__ . '/Maintenance.php';
 
class UserOptionsMaintenance extends Maintenance {
 
    function __construct() {
        parent::__construct();
 
        $this->addDescription( 'Pass through all users and change one of their options.
The new option is NOT validated.' );
 
        $this->addOption( 'list', 'List available user options and their default value' );
        $this->addOption( 'usage', 'Report all options statistics or just one if you specify it' );
        $this->addOption( 'old', 'The value to look for', false, true );
        $this->addOption( 'new', 'Rew value to update users with', false, true );
        $this->addOption( 'nowarn', 'Hides the 5 seconds warning' );
        $this->addOption( 'dry', 'Do not save user settings back to database' );
        $this->addArg( 'option name', 'Name of the option to change or provide statistics about', false );
    }
 
    public function execute() {
        if ( $this->hasOption( 'list' ) ) {
            $this->listAvailableOptions();
        } elseif ( $this->hasOption( 'usage' ) ) {
            $this->showUsageStats();
        } elseif ( $this->hasOption( 'old' )
            && $this->hasOption( 'new' )
            && $this->hasArg( 0 )
        ) {
            $this->updateOptions();
        } else {
            $this->maybeHelp( /* force = */ true );
        }
    }
 
    private function listAvailableOptions() {
        $def = User::getDefaultOptions();
        ksort( $def );
        $maxOpt = 0;
        foreach ( $def as $opt => $value ) {
            $maxOpt = max( $maxOpt, strlen( $opt ) );
        }
        foreach ( $def as $opt => $value ) {
            $this->output( sprintf( "%-{$maxOpt}s: %s\n", $opt, $value ) );
        }
    }
 
    private function showUsageStats() {
        $option = $this->getArg( 0 );
 
        $ret = [];
        $defaultOptions = User::getDefaultOptions();
 
        // We list user by user_id from one of the replica DBs
        $dbr = wfGetDB( DB_REPLICA );
        $result = $dbr->select( 'user',
            [ 'user_id' ],
            [],
            __METHOD__
        );
 
        foreach ( $result as $id ) {
            $user = User::newFromId( $id->user_id );
 
            // Get the options and update stats
            if ( $option ) {
                if ( !array_key_exists( $option, $defaultOptions ) ) {
                    $this->fatalError( "Invalid user option. Use --list to see valid choices\n" );
                }
 
                $userValue = $user->getOption( $option );
                if ( $userValue <> $defaultOptions[$option] ) {
                    $ret[$option][$userValue] = ( $ret[$option][$userValue] ?? 0 ) + 1;
                }
            } else {
                foreach ( $defaultOptions as $name => $defaultValue ) {
                    $userValue = $user->getOption( $name );
                    if ( $userValue != $defaultValue ) {
                        $ret[$name][$userValue] = ( $ret[$name][$userValue] ?? 0 ) + 1;
                    }
                }
            }
        }
 
        foreach ( $ret as $optionName => $usageStats ) {
            $this->output( "Usage for <$optionName> (default: '{$defaultOptions[$optionName]}'):\n" );
            foreach ( $usageStats as $value => $count ) {
                $this->output( " $count user(s): '$value'\n" );
            }
            print "\n";
        }
    }
 
    private function updateOptions() {
        $dryRun = $this->hasOption( 'dry' );
        $option = $this->getArg( 0 );
        $from = $this->getOption( 'old' );
        $to = $this->getOption( 'new' );
 
        if ( !$dryRun ) {
            $this->warn( $option, $from, $to );
        }
 
        // We list user by user_id from one of the replica DBs
        // @todo: getting all users in one query does not scale
        $dbr = wfGetDB( DB_REPLICA );
        $result = $dbr->select( 'user',
            [ 'user_id' ],
            [],
            __METHOD__
        );
 
        foreach ( $result as $id ) {
            $user = User::newFromId( $id->user_id );
 
            $curValue = $user->getOption( $option );
            $username = $user->getName();
 
            if ( $curValue == $from ) {
                $this->output( "Setting {$option} for $username from '{$from}' to '{$to}'): " );
 
                // Change value
                $user->setOption( $option, $to );
 
                // Will not save the settings if run with --dry
                if ( !$dryRun ) {
                    $user->saveSettings();
                }
                $this->output( " OK\n" );
            } else {
                $this->output( "Not changing '$username' using <{$option}> = '$curValue'\n" );
            }
        }
    }
 
    private function warn( $option, $from, $to ) {
        if ( $this->hasOption( 'nowarn' ) ) {
            return;
        }
 
        $this->output( <<<WARN
The script is about to change the options for ALL USERS in the database.
Users with option <$option> = '$from' will be made to use '$to'.
 
Abort with control-c in the next five seconds....
WARN
        );
        $this->countDown( 5 );
    }
}
 
$maintClass = UserOptionsMaintenance::class;
require RUN_MAINTENANCE_IF_MAIN;