mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2025-04-03 20:30:48 +00:00
5d2f48cd42
This change updates the enable-cuda-compat implementation to also use oci.ContainerRoot. Signed-off-by: Evan Lezar <elezar@nvidia.com>
92 lines
2.5 KiB
Go
92 lines
2.5 KiB
Go
/**
|
|
# SPDX-FileCopyrightText: Copyright (c) 2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
|
|
# SPDX-License-Identifier: Apache-2.0
|
|
#
|
|
# 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 oci
|
|
|
|
import (
|
|
"os"
|
|
"path/filepath"
|
|
"strings"
|
|
|
|
"github.com/moby/sys/symlink"
|
|
)
|
|
|
|
// A ContainerRoot represents the root directory of a container's filesystem.
|
|
type ContainerRoot string
|
|
|
|
// GlobFiles matches the specified pattern in the container root.
|
|
// The files that match must be regular files. Symlinks and directories are ignored.
|
|
func (r ContainerRoot) GlobFiles(pattern string) ([]string, error) {
|
|
patternPath, err := r.Resolve(pattern)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
matches, err := filepath.Glob(patternPath)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
var files []string
|
|
for _, match := range matches {
|
|
info, err := os.Lstat(match)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
// Ignore symlinks.
|
|
if info.Mode()&os.ModeSymlink != 0 {
|
|
continue
|
|
}
|
|
// Ignore directories.
|
|
if info.IsDir() {
|
|
continue
|
|
}
|
|
files = append(files, match)
|
|
}
|
|
return files, nil
|
|
}
|
|
|
|
// HasPath checks whether the specified path exists in the root.
|
|
func (r ContainerRoot) HasPath(path string) bool {
|
|
resolved, err := r.Resolve(path)
|
|
if err != nil {
|
|
return false
|
|
}
|
|
if _, err := os.Stat(resolved); err != nil && os.IsNotExist(err) {
|
|
return false
|
|
}
|
|
return true
|
|
}
|
|
|
|
// Resolve returns the absolute path including root path.
|
|
// Symlinks are resolved, but are guaranteed to resolve in the root.
|
|
func (r ContainerRoot) Resolve(path string) (string, error) {
|
|
absolute := filepath.Clean(filepath.Join(string(r), path))
|
|
return symlink.FollowSymlinkInScope(absolute, string(r))
|
|
}
|
|
|
|
// ToContainerPath converts the specified path to a path in the container.
|
|
// Relative paths and absolute paths that are in the container root are returned as is.
|
|
func (r ContainerRoot) ToContainerPath(path string) string {
|
|
if !filepath.IsAbs(path) {
|
|
return path
|
|
}
|
|
if !strings.HasPrefix(path, string(r)) {
|
|
return path
|
|
}
|
|
|
|
return strings.TrimPrefix(path, string(r))
|
|
}
|