forked from rook/rook
60 lines
1.6 KiB
Go
60 lines
1.6 KiB
Go
/*
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Copyright 2016 The Rook Authors. All rights reserved.
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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 flags
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import (
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"fmt"
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"strings"
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"github.com/spf13/cobra"
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)
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func VerifyRequiredFlags(cmd *cobra.Command, requiredFlags []string) error {
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var missingFlags []string
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for _, reqFlag := range requiredFlags {
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val, err := cmd.Flags().GetString(reqFlag)
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if err != nil || val == "" {
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missingFlags = append(missingFlags, reqFlag)
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}
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}
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return createRequiredFlagError(cmd.Name(), missingFlags)
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}
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func VerifyRequiredUint64Flags(cmd *cobra.Command, requiredFlags []string) error {
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var missingFlags []string
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for _, reqFlag := range requiredFlags {
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val, err := cmd.Flags().GetUint64(reqFlag)
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if err != nil || val == 0 {
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missingFlags = append(missingFlags, reqFlag)
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}
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}
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return createRequiredFlagError(cmd.Name(), missingFlags)
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}
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func createRequiredFlagError(name string, flags []string) error {
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if len(flags) == 0 {
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return nil
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}
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if len(flags) == 1 {
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return fmt.Errorf("%s is required for %s", flags[0], name)
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}
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return fmt.Errorf("%s are required for %s", strings.Join(flags, ","), name)
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}
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