a35f8ae914
A CNI network configuration file contains the plugin's executable file name. Some platforms like Windows require a file name extension for executables. This causes unnecessary burden on admins as they now have to maintain two versions of each type of netconfig file, which differ only by the ".exe" extension. A much simpler design is for invoke package to also look for well-known extensions on platforms that require it. Existing tests are improved and new tests are added to cover the new behavior. Fixes #360
44 lines
1.2 KiB
Go
44 lines
1.2 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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)
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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 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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