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package files
import (
"fmt"
"io"
"io/ioutil"
"os"
)
// We don't concern ourselves with executable files here.
const (
FILE_RW = os.FileMode(0666)
FILE_W = os.FileMode(0x222)
FILE_R = os.FileMode(0444)
)
func isWritable(fm os.FileMode) bool {
return fm & 2 == 2
}
func WriteFileRW(fileName string, data []byte) error {
return WriteFile(fileName, data, FILE_RW)
}
func WriteFileReadOnly(fileName string, data []byte) error {
return WriteFile(fileName, data, FILE_R)
}
func WriteFileWriteOnly(fileName string, data []byte) error {
return WriteFile(fileName, data, FILE_W)
}
// WriteFile. Will do a
func WriteFile(filename string, data []byte, perm os.FileMode) error {
f, err := os.Create(filename)
if err != nil {
fmt.Println("ERROR OPENING: " + err.Error())
return err
}
defer f.Close()
n, err2 := f.Write(data)
if err2 != nil {
fmt.Println("ERROR WRITING: " + err.Error())
return err
}
if err2 == nil && n < len(data) {
err2 = io.ErrShortWrite
return err
}
return nil
}
func ReadFile(fileName string) ([]byte, error) {
return ioutil.ReadFile(fileName)
}