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