cdb.php

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<?php
require_once( dirname( __FILE__ ) . '/commandLine.inc' );

function cdbShowHelp( $command ) {
        $commandList = array(
                'load' => 'load a cdb file for reading',
                'get'  => 'get a value for a key',
                'exit' => 'exit cdb',
                'quit' => 'exit cdb',
                'help' => 'help about a command',
        );
        if ( !$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 );
                }
        } elseif ( isset( $commandList[$command] ) ) {
                print "$command: $commandList[$command]\n";
        } else {
                print "$command: command does not exist or no help for it\n";
        }
}

do {
        $bad = false;
        $showhelp = false;
        $quit = false;
        static $fileHandle;

        $line = Maintenance::readconsole();
        if ( $line === false ) exit;

        $args = explode( ' ', $line );
        $command = array_shift( $args );

        // process command
        switch ( $command ) {
                case 'help':
                        // show an help message
                        cdbShowHelp( array_shift( $args ) );
                        break;
                case 'load':
                        if( !isset( $args[0] ) ) {
                                print "Need a filename there buddy\n";
                                break;
                        }
                        $file = $args[0];
                        print "Loading cdb file $file...";
                        $fileHandle = CdbReader::open( $file );
                        if( !$fileHandle ) {
                                print "not a cdb file or unable to read it\n";
                        } else {
                                print "ok\n";
                        }
                        break;
                case 'get':
                        if( !$fileHandle ) {
                                print "Need to load a cdb file first\n";
                                break;
                        }
                        if( !isset( $args[0] ) ) {
                                print "Need to specify a key, Luke\n";
                                break;
                        }
                        $res = $fileHandle->get( $args[0] );
                        if ( $res === false ) {
                                print "No such key/value pair\n";
                        } elseif ( is_string( $res ) ) {
                                print "$res\n";
                        } else {
                                var_dump( $res );
                        }
                        break;
                case 'quit':
                case 'exit':
                        $quit = true;
                        break;

                default:
                        $bad = true;
        } // switch() end

        if ( $bad ) {
                if ( $command ) {
                        print "Bad command\n";
                }
        } else {
                if ( function_exists( 'readline_add_history' ) ) {
                        readline_add_history( $line );
                }
        }
} while ( !$quit );