How to use the db-migrate/lib/log.info function in db-migrate

if ( action == 'up' )
        {
            executeUp();
        }
        else
        {
            executeDown();
        }
        break;

    case 'db':
        loadConfig();

        if( folder.length < 1 )
        {
            log.info( 'Please enter a valid command, i.e. db:create|db:drop' );
        }
        else
        {
            global.mode = folder[ 1 ];
            executeDB();
        }
        break;

    default:
        log.error( 'Invalid Action: Must be [up|down|create].' );
        optimist.showHelp();
        process.exit( 1 );
        break;
    }
}

if ( argv.help || argv._.length === 0 )
{
    optimist.showHelp();
    process.exit( 1 );
}

global.migrationTable = argv.table;
global.dbm = dbm;
global.matching = '';
global.mode;
global.verbose = argv.verbose;
global.dryRun = argv[ 'dry-run' ];
if ( global.dryRun )
{
    log.info( 'dry run' );
}

function connect( config, callback )
{
    if ( argv.template !== true )
        config.template = argv.template || config.template;

    template.connect( config, function ( err, tmp )
    {
        if( err )
        {
            callback( err );
            return;
        }

        driver.connect( config, function ( err, db )

function executeDown( callback )
{
    if ( !argv.count )
    {
        log.info( 'Defaulting to running 1 down migration.' );
        argv.count = 1;
    }
    index.connect( config.getCurrent().settings, function ( err, migrator )
    {
        assert.ifError( err );
        migrator.migrationsDir = path.resolve( argv[ 'migrations-dir' ] );
        migrator.driver.createMigrationsTable( function ( err )
        {
            assert.ifError( err );
            if ( typeof ( callback ) === 'function' )
                callback( null, onComplete.bind( this, migrator ), function ( callback )
                {
                    migrator.down( argv, callback );
                } );
            else
                migrator.down( argv, onComplete.bind( this, migrator ) );

db.createDatabase( argv.dbname, { ifNotExists: true }, function()
            {
                if( err )
                {
                    log.info( 'Error: Failed to create database!' );
                }
                else
                {
                    log.info( 'Created database "' + argv.dbname + '"' );
                }

                db.close();
            } );
        }

function executeDB() {

    if( argv._.length > 0 )
    {
        argv.dbname = argv._.shift().toString();
    }
    else
    {
        log.info( 'Error: You must enter a database name!' );
        return;
    }

    index.driver( config.getCurrent().settings, function( err, db )
    {
        if( global.mode === 'create' )
        {
            db.createDatabase( argv.dbname, { ifNotExists: true }, function()
            {
                if( err )
                {
                    log.info( 'Error: Failed to create database!' );
                }
                else
                {
                    log.info( 'Created database "' + argv.dbname + '"' );

config.loadUrl( process.env.DATABASE_URL, argv.env );
    }
    else
    {
        config.load( argv.config, argv.env );
    }

    if ( verbose )
    {
        var current = config.getCurrent();
        var s = JSON.parse( JSON.stringify( current.settings ) );

        if ( s.password )
            s.password = '******';

        log.info( 'Using', current.env, 'settings:', s );
    }
}

db.dropDatabase( argv.dbname, { ifExists: true }, function()
            {
                if( err )
                {
                    log.info( 'Error: Failed to drop database!' );
                }
                else
                {
                    log.info( 'Deleted database "' + argv.dbname + '"' );
                }

                db.close();
            } );
        }