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// Copyright 2023 Harald Albrecht.
//
// 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 (
"io"
"os"
"github.com/spf13/cobra"
"github.com/thediveo/enumflag/v2"
)
const Name = "enumflag-testing"
type FooMode enumflag.Flag
var fooMode FooMode
const (
Foo FooMode = iota
Bar
Baz
)
var FooModeNames = map[FooMode][]string{
Foo: {"foo"},
Bar: {"bar"},
Baz: {"baz"},
}
func newRootCmd(wout, werr io.Writer) *cobra.Command {
rootCmd := &cobra.Command{
Use: Name,
Run: func(*cobra.Command, []string) {},
}
// https://github.com/spf13/cobra/issues/2214#issuecomment-2571424842
rootCmd.SetOut(wout)
rootCmd.SetErr(werr)
testCmd := &cobra.Command{
Use: "test the canary",
Long: "test the canary",
Args: cobra.NoArgs,
Run: func(*cobra.Command, []string) {},
}
ef := enumflag.New(&fooMode, "FooMode", FooModeNames, enumflag.EnumCaseInsensitive)
testCmd.PersistentFlags().Var(ef, "mode", "sets foo mode")
ef.RegisterCompletion(testCmd, "mode", enumflag.Help[FooMode]{
Foo: "foos the output",
Bar: "bars the output",
Baz: "bazs the output",
})
rootCmd.AddCommand(testCmd)
return rootCmd
}
func main() {
// Cobra automatically adds a "__complete" command to our root command
// behind the scenes, unless we specify one explicitly. It also adds a
// "complete" sub command if we're adding at least one sub command.
if err := newRootCmd(stdout, stderr).Execute(); err != nil {
osExit(1)
}
}
// To 100% and beyond!!!
var osExit = os.Exit
var stdout io.Writer = os.Stdout
var stderr io.Writer = os.Stderr
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