neoneo-go/pkg/wire/util/io/io.go

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2019-02-25 22:44:14 +00:00
package fileutils
import (
"os"
)
// UpdateFile appends a byte slice to a file
2019-02-25 22:44:14 +00:00
func UpdateFile(filename string, data []byte) error {
f, err := os.OpenFile(filename, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
dataWNewline := append(data, []byte("\n")...)
_, err = f.Write(dataWNewline)
err = f.Close()
return err
}