mirror of https://github.com/knative/client.git
131 lines
4.0 KiB
Go
131 lines
4.0 KiB
Go
// Copyright © 2019 The Knative Authors
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package util
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import (
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"fmt"
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"strings"
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)
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// OrderedMapAndRemovalListFromArray creates a list of key-value pair using MapFromArrayAllowingSingles, and a list of removal entries
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func OrderedMapAndRemovalListFromArray(arr []string, delimiter string) (*OrderedMap, []string, error) {
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orderedMap := NewOrderedMap()
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removalList := []string{}
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for _, pairStr := range arr {
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pairSlice := strings.SplitN(pairStr, delimiter, 2)
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if len(pairSlice) == 0 || (len(pairSlice) == 1 && !strings.HasSuffix(pairSlice[0], "-")) {
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return nil, nil, fmt.Errorf("argument requires a value that contains the %q character; got %q", delimiter, pairStr)
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}
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key := pairSlice[0]
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if len(pairSlice) == 2 {
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value := pairSlice[1]
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orderedMap.Set(key, value)
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} else {
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// error cases are already filtered out from above part
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removalList = append(removalList, key[:len(key)-1])
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}
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}
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return orderedMap, removalList, nil
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}
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func MapFromArrayAllowingSingles(arr []string, delimiter string) (map[string]string, error) {
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return mapFromArray(arr, delimiter, true)
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}
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func MapFromArray(arr []string, delimiter string) (map[string]string, error) {
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return mapFromArray(arr, delimiter, false)
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}
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func Add(original *map[string]string, toAdd map[string]string, toRemove []string) map[string]string {
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for k, v := range toAdd {
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(*original)[k] = v
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}
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for _, k := range toRemove {
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delete(*original, k)
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}
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return *original
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}
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func ParseMinusSuffix(m map[string]string) []string {
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stringToRemove := []string{}
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for key := range m {
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if strings.HasSuffix(key, "-") {
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stringToRemove = append(stringToRemove, key[:len(key)-1])
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delete(m, key)
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}
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}
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return stringToRemove
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}
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// StringMap is a map which key and value are strings
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type StringMap map[string]string
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// Merge to merge a map to a StringMap
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func (m StringMap) Merge(toMerge map[string]string) StringMap {
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for k, v := range toMerge {
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m[k] = v
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}
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return m
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}
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// Remove to remove from StringMap
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func (m StringMap) Remove(toRemove []string) StringMap {
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for _, k := range toRemove {
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delete(m, k)
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}
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return m
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}
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// AddedAndRemovalListsFromArray returns a list of added entries and a list of removal entries
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func AddedAndRemovalListsFromArray(m []string) ([]string, []string) {
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stringToRemove := []string{}
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stringToAdd := []string{}
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for _, key := range m {
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if strings.HasSuffix(key, "-") {
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stringToRemove = append(stringToRemove, key[:len(key)-1])
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} else {
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stringToAdd = append(stringToAdd, key)
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}
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}
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return stringToAdd, stringToRemove
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}
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// mapFromArray takes an array of strings where each item is a (key, value) pair
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// separated by a delimiter and returns a map where keys are mapped to their respective values.
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// If allowSingles is true, values without a delimiter will be added as keys pointing to empty strings
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func mapFromArray(arr []string, delimiter string, allowSingles bool) (map[string]string, error) {
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returnMap := map[string]string{}
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for _, pairStr := range arr {
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pairSlice := strings.SplitN(pairStr, delimiter, 2)
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if len(pairSlice) <= 1 {
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if len(pairSlice) == 0 || !allowSingles {
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return nil, fmt.Errorf("Argument requires a value that contains the %q character; got %q", delimiter, pairStr)
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}
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returnMap[pairSlice[0]] = ""
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} else {
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if pairSlice[0] == "" {
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return nil, fmt.Errorf("The key is empty")
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}
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if _, ok := returnMap[pairSlice[0]]; ok {
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return nil, fmt.Errorf("The key %q has been duplicate in %v", pairSlice[0], arr)
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}
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returnMap[pairSlice[0]] = pairSlice[1]
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}
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}
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return returnMap, nil
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}
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