nvidia-container-toolkit/internal/lookup/symlinks/symlink.go

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/**
# Copyright (c) NVIDIA CORPORATION. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
**/
package symlinks
import (
"fmt"
"os"
)
// Resolve returns the link target of the specified filename or the filename if it is not a link.
func Resolve(filename string) (string, error) {
info, err := os.Lstat(filename)
if err != nil {
return filename, fmt.Errorf("failed to get file info: %v", info)
}
if info.Mode()&os.ModeSymlink == 0 {
return filename, nil
}
return os.Readlink(filename)
}