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helpers.go
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/
helpers.go
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/*
Copyright 2018 David Evans
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 purestorage
// Return values in slice1 that are not in slice2
func difference(slice1 []string, slice2 []string) []string {
var diff []string
for _, s1 := range slice1 {
found := false
for _, s2 := range slice2 {
if s1 == s2 {
found = true
break
}
}
// String not found. We add it to return slice
if !found {
diff = append(diff, s1)
}
}
return diff
}
// Function to compare slices of strings
func sameStringSlice(x, y []string) bool {
if len(x) != len(y) {
return false
}
// create a map of string -> int
diff := make(map[string]int, len(x))
for _, _x := range x {
// 0 value for int is 0, so just increment a counter for the string
diff[_x]++
}
for _, _y := range y {
// If the string _y is not in diff bail out early
if _, ok := diff[_y]; !ok {
return false
}
diff[_y]--
if diff[_y] == 0 {
delete(diff, _y)
}
}
if len(diff) == 0 {
return true
}
return false
}
// Function to check if a string exists in a slice
func stringInSlice(a string, list []string) bool {
for _, b := range list {
if b == a {
return true
}
}
return false
}