mirror of
https://github.com/TECHNOFAB11/zfs-localpv.git
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74 lines
2.2 KiB
Go
74 lines
2.2 KiB
Go
/*
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Copyright 2020 The OpenEBS Authors
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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 helpers
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import (
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"os"
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"strings"
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"github.com/google/uuid"
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)
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// GetCaseInsensitiveMap coercs the map's keys to lower case, which only works
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// when unicode char is in ASCII subset. May overwrite key-value pairs on
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// different permutations of key case as in Key and key. DON'T force values to the
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// lower case unconditionally, because values for keys such as mountpoint or
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// keylocation are case-sensitive.
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// Note that although keys such as 'comPREssion' are accepted and processed,
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// even if they are technically invalid, updates to rectify such typing will be
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// prohibited as a forbidden update.
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func GetCaseInsensitiveMap(dict *map[string]string) map[string]string {
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insensitiveDict := map[string]string{}
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for k, v := range *dict {
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insensitiveDict[strings.ToLower(k)] = v
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}
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return insensitiveDict
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}
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// GetInsensitiveParameter handles special case ofGetCaseInsensitiveMap looking up one
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// key-value pair only
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func GetInsensitiveParameter(dict *map[string]string, key string) string {
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insensitiveDict := GetCaseInsensitiveMap(dict)
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return insensitiveDict[strings.ToLower(key)]
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}
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func exists(path string) (os.FileInfo, bool) {
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info, err := os.Stat(path)
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if os.IsNotExist(err) {
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return nil, false
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}
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return info, true
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}
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// FileExists checks if a file exists and is not a directory
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func FileExists(filepath string) bool {
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info, present := exists(filepath)
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return present && info.Mode().IsRegular()
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}
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// DirExists checks if a directory exists
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func DirExists(path string) bool {
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info, present := exists(path)
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return present && info.IsDir()
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}
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// IsValidUUID validates whether a string is a valid UUID
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func IsValidUUID(u string) bool {
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_, err := uuid.Parse(u)
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return err == nil
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}
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