rdbms: reduce LoadBalancer replication log spam

[lhc/web/wiklou.git] / maintenance / mcc.php

diff --git a/maintenance/mcc.php b/maintenance/mcc.php
index 6090a93..784ba0e 100644 (file)
--- a/maintenance/mcc.php
+++ b/maintenance/mcc.php
@@ -22,22 +22,67 @@
  * @ingroup Maintenance
  */
 
-/** */
-require_once( __DIR__ . '/commandLine.inc' );
-
-$mcc = new MWMemcached( array( 'persistent' => true ) );
-
-if ( $wgMainCacheType === CACHE_MEMCACHED ) {
+$optionsWithArgs = [ 'cache' ];
+$optionsWithoutArgs = [
+       'debug', 'help'
+];
+require_once __DIR__ . '/commandLine.inc';
+
+$debug = isset( $options['debug'] );
+$help = isset( $options['help'] );
+$cache = isset( $options['cache'] ) ? $options['cache'] : null;
+
+if ( $help ) {
+       mccShowUsage();
+       exit( 0 );
+}
+$mcc = new MemcachedClient( [
+       'persistent' => true,
+       'debug' => $debug,
+] );
+
+if ( $cache ) {
+       if ( !isset( $wgObjectCaches[$cache] ) ) {
+               print "MediaWiki isn't configured with a cache named '$cache'";
+               exit( 1 );
+       }
+       $servers = $wgObjectCaches[$cache]['servers'];
+} elseif ( $wgMainCacheType === CACHE_MEMCACHED ) {
        $mcc->set_servers( $wgMemCachedServers );
-} elseif( isset( $wgObjectCaches[$wgMainCacheType] ) ) {
+} elseif ( isset( $wgObjectCaches[$wgMainCacheType]['servers'] ) ) {
        $mcc->set_servers( $wgObjectCaches[$wgMainCacheType]['servers'] );
 } else {
        print "MediaWiki isn't configured for Memcached usage\n";
        exit( 1 );
 }
 
-function mccShowHelp( $command ) {
-       $commandList = array(
+/**
+ * Show this command line tool usage.
+ */
+function mccShowUsage() {
+       echo <<<EOF
+Usage:
+       mcc.php [--debug]
+       mcc.php --help
+
+MemCached Command (mcc) is an interactive command tool that let you interact
+with the MediaWiki memcached cache.
+
+Options:
+       --debug Set debug mode on the memcached connection.
+       --help  This help screen.
+
+Interactive commands:
+
+EOF;
+       print "\t";
+       print str_replace( "\n", "\n\t", mccGetHelp( false ) );
+       print "\n";
+}
+
+function mccGetHelp( $command ) {
+       $output = '';
+       $commandList = [
                'get' => 'grabs something',
                'getsock' => 'lists sockets',
                'set' => 'changes something',
@@ -48,20 +93,22 @@ function mccShowHelp( $command ) {
                'exit' => 'exit mcc',
                'quit' => 'exit mcc',
                'help' => 'help about a command',
-       );
+       ];
        if ( !$command ) {
                $command = 'fullhelp';
        }
        if ( $command === 'fullhelp' ) {
                $max_cmd_len = max( array_map( 'strlen', array_keys( $commandList ) ) );
                foreach ( $commandList as $cmd => $desc ) {
-                       printf( "%-{$max_cmd_len}s: %s\n", $cmd, $desc );
+                       $output .= sprintf( "%-{$max_cmd_len}s: %s\n", $cmd, $desc );
                }
        } elseif ( isset( $commandList[$command] ) ) {
-               print "$command: $commandList[$command]\n";
+               $output .= "$command: $commandList[$command]\n";
        } else {
-               print "$command: command does not exist or no help for it\n";
+               $output .= "$command: command does not exist or no help for it\n";
        }
+
+       return $output;
 }
 
 do {
@@ -70,7 +117,9 @@ do {
        $quit = false;
 
        $line = Maintenance::readconsole();
-       if ( $line === false ) exit;
+       if ( $line === false ) {
+               exit;
+       }
 
        $args = explode( ' ', $line );
        $command = array_shift( $args );
@@ -79,7 +128,7 @@ do {
        switch ( $command ) {
                case 'help':
                        // show an help message
-                       mccShowHelp( array_shift( $args ) );
+                       print mccGetHelp( array_shift( $args ) );
                        break;
 
                case 'get':