mirror of
https://github.com/edgelesssys/constellation.git
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36 lines
882 B
Go
36 lines
882 B
Go
package cmd
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import (
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"bufio"
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"errors"
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"strings"
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"github.com/spf13/cobra"
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)
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// ErrInvalidInput is an error where user entered invalid input.
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var ErrInvalidInput = errors.New("user made invalid input")
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// askToConfirm asks user to confirm an action.
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// The user will be asked the handed question and can answer with
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// yes or no.
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func askToConfirm(cmd *cobra.Command, question string) (bool, error) {
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reader := bufio.NewReader(cmd.InOrStdin())
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cmd.Printf("%s [y/n]: ", question)
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for i := 0; i < 3; i++ {
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resp, err := reader.ReadString('\n')
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if err != nil {
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return false, err
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}
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resp = strings.ToLower(strings.TrimSpace(resp))
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if resp == "n" || resp == "no" {
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return false, nil
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}
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if resp == "y" || resp == "yes" {
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return true, nil
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}
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cmd.Printf("Type 'y' or 'yes' to confirm, or abort action with 'n' or 'no': ")
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}
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return false, ErrInvalidInput
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}
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