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filestuff.go
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filestuff.go
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// Copyright 2018 Google LLC All Rights Reserved.
//
// 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 main
import (
"os"
"path/filepath"
"github.com/spf13/cobra"
)
// From pkg/kubectl
type FilenameOptions struct {
Filenames []string
Recursive bool
}
func addFileArg(cmd *cobra.Command, fo *FilenameOptions) {
// From pkg/kubectl
cmd.Flags().StringSliceVarP(&fo.Filenames, "filename", "f", fo.Filenames,
"Filename, directory, or URL to files to use to create the resource")
cmd.Flags().BoolVarP(&fo.Recursive, "recursive", "R", fo.Recursive,
"Process the directory used in -f, --filename recursively. Useful when you want to manage related manifests organized within the same directory.")
}
// Based heavily on pkg/kubectl
func enumerateFiles(fo *FilenameOptions) ([]string, error) {
var files []string
for _, paths := range fo.Filenames {
if paths == "-" {
files = append(files, paths)
continue
}
err := filepath.Walk(paths, func(path string, fi os.FileInfo, err error) error {
if err != nil {
return err
}
if fi.IsDir() {
if path != paths && !fo.Recursive {
return filepath.SkipDir
}
return nil
}
// Don't check extension if the filepath was passed explicitly
if path != paths {
switch filepath.Ext(path) {
case ".json", ".yaml":
// Process these.
default:
return nil
}
}
files = append(files, path)
return nil
})
if err != nil {
return nil, err
}
}
return files, nil
}