mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2025-03-10 22:32:25 +00:00
47 lines
1.4 KiB
Go
47 lines
1.4 KiB
Go
/**
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# Copyright (c) 2025, NVIDIA CORPORATION. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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**/
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package ldcache
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import (
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"os"
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"path/filepath"
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"github.com/moby/sys/symlink"
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)
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// A containerRoot represents the root filesystem of a container.
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type containerRoot string
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// hasPath checks whether the specified path exists in the root.
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func (r containerRoot) hasPath(path string) bool {
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resolved, err := r.resolve(path)
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if err != nil {
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return false
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}
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if _, err := os.Stat(resolved); err != nil && os.IsNotExist(err) {
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return false
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}
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return true
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}
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// resolve returns the absolute path including root path.
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// Symlinks are resolved, but are guaranteed to resolve in the root.
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func (r containerRoot) resolve(path string) (string, error) {
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absolute := filepath.Clean(filepath.Join(string(r), path))
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return symlink.FollowSymlinkInScope(absolute, string(r))
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}
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