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https://github.com/vmware-tanzu/velero.git
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e3232b7eb6
refactor util methods into a common package move utility methods into cli package instead of common rename util.go to common.go Signed-off-by: Shubheksha Jalan <jshubheksha@gmail.com>
65 lines
1.4 KiB
Go
65 lines
1.4 KiB
Go
/*
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Copyright 2018 the Heptio Ark contributors.
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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 cli
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import (
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"bufio"
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"fmt"
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"os"
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"strings"
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)
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// GetConfirmation ensures that the user confirms the action before proceeding.
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func GetConfirmation() bool {
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reader := bufio.NewReader(os.Stdin)
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for {
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fmt.Printf("Are you sure you want to continue (Y/N)? ")
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confirmation, err := reader.ReadString('\n')
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if err != nil {
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fmt.Fprintf(os.Stderr, "error reading user input: %v\n", err)
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return false
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}
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confirmation = strings.TrimSpace(confirmation)
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if len(confirmation) != 1 {
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continue
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}
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switch strings.ToLower(confirmation) {
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case "y":
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return true
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case "n":
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return false
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}
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}
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}
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// Xor returns true if exactly one of the provided values is true,
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// or false otherwise.
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func Xor(val bool, vals ...bool) bool {
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res := val
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for _, v := range vals {
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if res && v {
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return false
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}
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res = res || v
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}
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return res
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}
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