mirror of https://github.com/k3s-io/k3s
69 lines
2.1 KiB
Go
69 lines
2.1 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 genericclioptions
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import (
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"strings"
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"github.com/spf13/cobra"
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"k8s.io/cli-runtime/pkg/printers"
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)
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func (f *JSONYamlPrintFlags) AllowedFormats() []string {
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if f == nil {
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return []string{}
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}
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return []string{"json", "yaml"}
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}
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// JSONYamlPrintFlags provides default flags necessary for json/yaml printing.
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// Given the following flag values, a printer can be requested that knows
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// how to handle printing based on these values.
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type JSONYamlPrintFlags struct {
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}
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// ToPrinter receives an outputFormat and returns a printer capable of
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// handling --output=(yaml|json) printing.
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// Returns false if the specified outputFormat does not match a supported format.
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// Supported Format types can be found in pkg/printers/printers.go
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func (f *JSONYamlPrintFlags) ToPrinter(outputFormat string) (printers.ResourcePrinter, error) {
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var printer printers.ResourcePrinter
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outputFormat = strings.ToLower(outputFormat)
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switch outputFormat {
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case "json":
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printer = &printers.JSONPrinter{}
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case "yaml":
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printer = &printers.YAMLPrinter{}
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default:
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return nil, NoCompatiblePrinterError{OutputFormat: &outputFormat, AllowedFormats: f.AllowedFormats()}
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}
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return printer, nil
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}
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// AddFlags receives a *cobra.Command reference and binds
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// flags related to JSON or Yaml printing to it
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func (f *JSONYamlPrintFlags) AddFlags(c *cobra.Command) {}
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// NewJSONYamlPrintFlags returns flags associated with
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// yaml or json printing, with default values set.
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func NewJSONYamlPrintFlags() *JSONYamlPrintFlags {
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return &JSONYamlPrintFlags{}
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}
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