86 lines
1.9 KiB
Go
86 lines
1.9 KiB
Go
/*
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Copyright (c) 2014-2016 VMware, Inc. All Rights Reserved.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package flags
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import (
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"flag"
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"fmt"
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"os"
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"github.com/vmware/govmomi/object"
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"golang.org/x/net/context"
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)
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type FolderFlag struct {
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common
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*DatacenterFlag
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name string
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folder *object.Folder
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}
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var folderFlagKey = flagKey("folder")
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func NewFolderFlag(ctx context.Context) (*FolderFlag, context.Context) {
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if v := ctx.Value(folderFlagKey); v != nil {
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return v.(*FolderFlag), ctx
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}
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v := &FolderFlag{}
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v.DatacenterFlag, ctx = NewDatacenterFlag(ctx)
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ctx = context.WithValue(ctx, folderFlagKey, v)
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return v, ctx
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}
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func (flag *FolderFlag) Register(ctx context.Context, f *flag.FlagSet) {
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flag.RegisterOnce(func() {
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flag.DatacenterFlag.Register(ctx, f)
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env := "GOVC_FOLDER"
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value := os.Getenv(env)
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usage := fmt.Sprintf("Folder [%s]", env)
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f.StringVar(&flag.name, "folder", value, usage)
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})
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}
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func (flag *FolderFlag) Process(ctx context.Context) error {
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return flag.ProcessOnce(func() error {
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if err := flag.DatacenterFlag.Process(ctx); err != nil {
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return err
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}
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return nil
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})
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}
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func (flag *FolderFlag) Folder() (*object.Folder, error) {
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if flag.folder != nil {
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return flag.folder, nil
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}
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finder, err := flag.Finder()
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if err != nil {
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return nil, err
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}
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if flag.folder, err = finder.FolderOrDefault(context.TODO(), flag.name); err != nil {
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return nil, err
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}
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return flag.folder, nil
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}
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