containerd/vendor/github.com/containernetworking/cni/pkg/invoke/find.go
Sebastiaan van Stijn c4778fe1b1
go.mod: github.com/containernetworking/plugins v0.9.1
full diff: https://github.com/containernetworking/plugins/compare/v0.8.6...v0.9.1

changes in vendored code:

- (in containernetworking/plugins): Fix race condition in GetCurrentNS
- (in containernetworking/cni): tighten up plugin-finding logic

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2021-04-12 22:10:06 +02:00

49 lines
1.4 KiB
Go

// Copyright 2015 CNI authors
//
// 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 invoke
import (
"fmt"
"os"
"path/filepath"
"strings"
)
// FindInPath returns the full path of the plugin by searching in the provided path
func FindInPath(plugin string, paths []string) (string, error) {
if plugin == "" {
return "", fmt.Errorf("no plugin name provided")
}
if strings.ContainsRune(plugin, os.PathSeparator) {
return "", fmt.Errorf("invalid plugin name: %s", plugin)
}
if len(paths) == 0 {
return "", fmt.Errorf("no paths provided")
}
for _, path := range paths {
for _, fe := range ExecutableFileExtensions {
fullpath := filepath.Join(path, plugin) + fe
if fi, err := os.Stat(fullpath); err == nil && fi.Mode().IsRegular() {
return fullpath, nil
}
}
}
return "", fmt.Errorf("failed to find plugin %q in path %s", plugin, paths)
}