migrate/cli/log.go

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package main
import (
"fmt"
logpkg "log"
"os"
)
type Log struct {
verbose bool
}
func (l *Log) Printf(format string, v ...interface{}) {
if l.verbose {
logpkg.Printf(format, v...)
} else {
fmt.Fprintf(os.Stderr, format, v...)
}
}
func (l *Log) Println(args ...interface{}) {
if l.verbose {
logpkg.Println(args...)
} else {
fmt.Fprintln(os.Stderr, args...)
}
}
func (l *Log) Verbose() bool {
return l.verbose
}
func (l *Log) fatalf(format string, v ...interface{}) {
l.Printf(format, v...)
os.Exit(1)
}
func (l *Log) fatal(args ...interface{}) {
l.Println(args...)
os.Exit(1)
}
func (l *Log) fatalErr(err error) {
l.fatal("error:", err)
}