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util_unix.go
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/
util_unix.go
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//go:build !windows
// +build !windows
package os
import (
"bytes"
"fmt"
"os"
"os/exec"
"os/user"
"strconv"
"strings"
"github.com/crc-org/crc/v2/pkg/crc/logging"
)
func WriteToFileAsRoot(reason, content, filepath string, mode os.FileMode) error {
logging.Infof("Using root access: %s", reason)
cmd := exec.Command("sudo", "tee", filepath) // #nosec G204
cmd.Stdin = strings.NewReader(content)
buf := new(bytes.Buffer)
cmd.Stderr = buf
if err := cmd.Run(); err != nil {
return fmt.Errorf("Failed writing to file as root: %s: %s: %v", filepath, buf.String(), err)
}
if _, _, err := RunPrivileged(fmt.Sprintf("Changing permissions for %s to %o ", filepath, mode),
"chmod", strconv.FormatUint(uint64(mode), 8), filepath); err != nil {
return err
}
return nil
}
func RemoveFileAsRoot(reason, filepath string) error {
if !FileExists(filepath) {
return nil
}
_, _, err := RunPrivileged(reason, "rm", "-fr", filepath)
return err
}
func GetCurrentUsername() (string, error) {
u, err := user.Current()
if err != nil {
return "", err
}
return u.Username, nil
}