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71 lines
2.6 KiB
Go
71 lines
2.6 KiB
Go
/*
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Copyright 2018 The Kubernetes Authors.
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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 printers
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import "github.com/spf13/cobra"
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// KubeTemplatePrintFlags composes print flags that provide both a JSONPath and a go-template printer.
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// This is necessary if dealing with cases that require support both both printers, since both sets of flags
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// require overlapping flags.
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type KubeTemplatePrintFlags struct {
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*GoTemplatePrintFlags
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*JSONPathPrintFlags
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AllowMissingKeys *bool
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TemplateArgument *string
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}
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func (f *KubeTemplatePrintFlags) ToPrinter(outputFormat string) (ResourcePrinter, error) {
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if p, err := f.JSONPathPrintFlags.ToPrinter(outputFormat); !IsNoCompatiblePrinterError(err) {
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return p, err
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}
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return f.GoTemplatePrintFlags.ToPrinter(outputFormat)
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}
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// AddFlags receives a *cobra.Command reference and binds
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// flags related to template printing to it
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func (f *KubeTemplatePrintFlags) AddFlags(c *cobra.Command) {
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if f.TemplateArgument != nil {
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c.Flags().StringVar(f.TemplateArgument, "template", *f.TemplateArgument, "Template string or path to template file to use when -o=go-template, -o=go-template-file. The template format is golang templates [http://golang.org/pkg/text/template/#pkg-overview].")
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c.MarkFlagFilename("template")
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}
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if f.AllowMissingKeys != nil {
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c.Flags().BoolVar(f.AllowMissingKeys, "allow-missing-template-keys", *f.AllowMissingKeys, "If true, ignore any errors in templates when a field or map key is missing in the template. Only applies to golang and jsonpath output formats.")
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}
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}
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// NewKubeTemplatePrintFlags returns flags associated with
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// --template printing, with default values set.
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func NewKubeTemplatePrintFlags() *KubeTemplatePrintFlags {
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allowMissingKeysPtr := true
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templateArgPtr := ""
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return &KubeTemplatePrintFlags{
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GoTemplatePrintFlags: &GoTemplatePrintFlags{
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TemplateArgument: &templateArgPtr,
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AllowMissingKeys: &allowMissingKeysPtr,
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},
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JSONPathPrintFlags: &JSONPathPrintFlags{
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TemplateArgument: &templateArgPtr,
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AllowMissingKeys: &allowMissingKeysPtr,
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},
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TemplateArgument: &templateArgPtr,
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AllowMissingKeys: &allowMissingKeysPtr,
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}
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}
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