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common.go
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common.go
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// Copyright 2023 The kubecfg authors
//
//
// 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 cmd
import (
"fmt"
"github.com/spf13/cobra"
)
const (
flagExec = "exec"
flagOverlay = "overlay" // deprecated
flagOverlayCode = "overlay-code"
flagOverlayCodeFile = "overlay-code-file"
)
type commonFlagOpts struct {
noShortEval bool
}
type commonEvalFlagOpt func(opts *commonFlagOpts)
func withoutShortEvalFlag() commonEvalFlagOpt {
return func(opts *commonFlagOpts) {
opts.noShortEval = true
}
}
// Most commands evaluate jsonnet files and expose flags to control
// how to evaluate them. We cannot put those flags in the root command because
// we also have commands that wouldn't honour them.
func addCommonEvalFlags(cmd *cobra.Command, opt ...commonEvalFlagOpt) {
flags := cmd.PersistentFlags()
var opts commonFlagOpts
for _, o := range opt {
o(&opts)
}
shortEval := "e"
if opts.noShortEval {
shortEval = ""
}
flags.StringP(flagExec, shortEval, "", "Inline code") // like `jsonnet -e`
flags.String(flagOverlay, "", "Jsonnet file to compose to each of the input files")
flags.MarkDeprecated(flagOverlay, fmt.Sprintf("please use %s instead", flagOverlayCodeFile))
flags.String(flagOverlayCode, "", "Inline Jsonnet code to compose to each of the input files")
flags.String(flagOverlayCodeFile, "", "Jsonnet file to compose to each of the input files")
cmd.MarkFlagsMutuallyExclusive(flagOverlay, flagOverlayCode, flagOverlayCodeFile)
}