remove unused code

Signed-off-by: Valery Piashchynski <[email protected]>

1 files changed, 0 insertions, 60 deletions

diff --git a/utils/isolate.go b/utils/isolate.go
deleted file mode 100755
index 202f538c..00000000
--- a/utils/isolate.go
+++ /dev/null
@@ -1,60 +0,0 @@
-//go:build !windows
-// +build !windows
-
-package utils
-
-import (
-	"fmt"
-	"os"
-	"os/exec"
-	"os/user"
-	"strconv"
-	"syscall"
-
-	"github.com/spiral/errors"
-)
-
-// IsolateProcess change gpid for the process to avoid bypassing signals to php processes.
-func IsolateProcess(cmd *exec.Cmd) {
-	cmd.SysProcAttr = &syscall.SysProcAttr{Setpgid: true, Pgid: 0}
-}
-
-// ExecuteFromUser may work only if run RR under root user
-func ExecuteFromUser(cmd *exec.Cmd, u string) error {
-	const op = errors.Op("execute_from_user")
-	usr, err := user.Lookup(u)
-	if err != nil {
-		return errors.E(op, err)
-	}
-
-	usrI32, err := strconv.ParseInt(usr.Uid, 10, 32)
-	if err != nil {
-		return errors.E(op, err)
-	}
-
-	grI32, err := strconv.ParseInt(usr.Gid, 10, 32)
-	if err != nil {
-		return errors.E(op, err)
-	}
-
-	// For more information:
-	// https://www.man7.org/linux/man-pages/man7/user_namespaces.7.html
-	// https://www.man7.org/linux/man-pages/man7/namespaces.7.html
-	if _, err := os.Stat("/proc/self/ns/user"); err != nil {
-		if os.IsNotExist(err) {
-			return fmt.Errorf("kernel doesn't support user namespaces")
-		}
-		if os.IsPermission(err) {
-			return fmt.Errorf("unable to test user namespaces due to permissions")
-		}
-
-		return errors.E(op, errors.Errorf("failed to stat /proc/self/ns/user: %v", err))
-	}
-
-	cmd.SysProcAttr.Credential = &syscall.Credential{
-		Uid: uint32(usrI32),
-		Gid: uint32(grI32),
-	}
-
-	return nil
-}