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prompt.go
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prompt.go
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/*
Copyright (C) 2022-2023 ApeCloud Co., Ltd
This file is part of KubeBlocks project
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package prompt
import (
"fmt"
"io"
"sort"
"strings"
"github.com/manifoldco/promptui"
"golang.org/x/exp/slices"
)
func NewPrompt(label string, validate promptui.ValidateFunc, in io.Reader) *promptui.Prompt {
template := &promptui.PromptTemplates{
Prompt: "{{ . }} ",
Valid: "{{ . | green }} ",
Invalid: "{{ . | red }} ",
Success: "{{ . | bold }} ",
}
if validate == nil {
template = &promptui.PromptTemplates{
Prompt: "{{ . }} ",
Valid: "{{ . | red }} ",
Invalid: "{{ . | red }} ",
Success: "{{ . | bold }} ",
}
}
p := promptui.Prompt{
Label: label,
Stdin: io.NopCloser(in),
Templates: template,
Validate: validate,
}
return &p
}
// Confirm let user double-check for the cluster ops
// use customMessage to display more information
// when names are empty, require validation for 'yes'.
func Confirm(names []string, in io.Reader, customMessage string, prompt string) error {
if len(names) == 0 {
names = []string{"yes"}
}
if len(customMessage) != 0 {
fmt.Println(customMessage)
}
if prompt == "" {
prompt = "Please type the name again(separate with white space when more than one):"
}
_, err := NewPrompt(prompt,
func(entered string) error {
if len(names) == 1 && names[0] == "yes" {
entered = strings.ToLower(entered)
}
enteredNames := strings.Split(entered, " ")
sort.Strings(names)
sort.Strings(enteredNames)
if !slices.Equal(names, enteredNames) {
return fmt.Errorf("typed \"%s\" does not match \"%s\"", entered, strings.Join(names, " "))
}
return nil
}, in).Run()
return err
}