directory: use fileutils.(Le|E)xists

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>

directory/directory_dest.go

@@ -15,6 +15,7 @@ import (
 	"github.com/containers/image/v5/internal/putblobdigest"
 	"github.com/containers/image/v5/internal/signature"
 	"github.com/containers/image/v5/types"
+	"github.com/containers/storage/pkg/fileutils"
 	"github.com/opencontainers/go-digest"
 	"github.com/sirupsen/logrus"
 )
@@ -249,7 +250,7 @@ func (d *dirImageDestination) Commit(context.Context, types.UnparsedImage) error
 
 // returns true if path exists
 func pathExists(path string) (bool, error) {
-	_, err := os.Stat(path)
+	err := fileutils.Exists(path)
 	if err == nil {
 		return true, nil
 	}

directory/explicitfilepath/path.go

@@ -4,6 +4,8 @@ import (
 	"fmt"
 	"os"
 	"path/filepath"
+
+	"github.com/containers/storage/pkg/fileutils"
 )
 
 // ResolvePathToFullyExplicit returns the input path converted to an absolute, no-symlinks, cleaned up path.
@@ -11,7 +13,7 @@ import (
 // a non-existent name (but not a symlink pointing to a non-existent name)
 // This is intended as a helper for implementations of types.ImageReference.PolicyConfigurationIdentity etc.
 func ResolvePathToFullyExplicit(path string) (string, error) {
-	switch _, err := os.Lstat(path); {
+	switch err := fileutils.Lexists(path); {
 	case err == nil:
 		return resolveExistingPathToFullyExplicit(path)
 	case os.IsNotExist(err):