You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: psqldef.go
    path of file: ./repos/sqldef/cmd/psqldef
    
    the code of the file until where you have to start completion: package main

import (
	"fmt"
	"log"
	"os"
	"strings"
	"syscall"

	"github.com/sqldef/sqldef/database/file"

	"github.com/jessevdk/go-flags"
	"github.com/sqldef/sqldef"
	"github.com/sqldef/sqldef/database"
	"github.com/sqldef/sqldef/database/postgres"
	"github.com/sqldef/sqldef/schema"
	"golang.org/x/term"
)

var versio
    
func main() {
	config, options := parseOptions(os.Args[1:])

	var db database.Database
	if len(options.CurrentFile) > 0 {
		db = file.NewDatabase(options.CurrentFile)
	} else {
		var err error
		db, err = postgres.NewDatabase(config)

		// Emulate the default behavior (sslmode=prefer) of psql when PGSSLMODE is not set,
		// which is not supported by Go's lib/pq.
		if _, ok := os.LookupEnv("PGSSLMODE"); !ok && err == nil {
			e := db.DB().Ping()
			if e != nil && strings.Contains(fmt.Sprintf("%s", e), "SSL is not enabled") {
				db.Close()
				os.Setenv("PGSSLMODE", "disable")
				db, err = postgres.NewDatabase(config)
			}
		}

		if err != nil {
			log.Fatal(err)
		}
		defer db.Close()
	}

	sqlParser := postgres.NewParser()
	sqldef.Run(schema.GeneratorModePostgres, db, sqlParser, options)
}