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etcdctl/util/normalizer.go
49 строк
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ah8ad3
Create util for etcdctl, move helper of cobra from main package to
04 авг 2024, 13:07
04 авг 2024, 13:07
16fb3f6
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// Copyright 2024 The etcd Authors // // 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 util import "strings" const indentation = " " // Normalize normalizes a string: // 1. trim the leading and trailing space // 2. add an indentation before each line func Normalize(s string) string { if len(s) == 0 { return s } return normalizer{s}.trim().indent().string } type normalizer struct { string } func (n normalizer) trim() normalizer { n.string = strings.TrimSpace(n.string) return n } func (n normalizer) indent() normalizer { indentedLines := []string{} for _, line := range strings.Split(n.string, "\n") { trimmed := strings.TrimSpace(line) indented := indentation + trimmed indentedLines = append(indentedLines, indented) } n.string = strings.Join(indentedLines, "\n") return n }