mirror of https://github.com/hashicorp/consul
80 lines
1.7 KiB
Go
80 lines
1.7 KiB
Go
package lib
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import (
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"fmt"
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)
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func PatchSliceOfMaps(m map[string]interface{}, skip []string, skipTree []string) map[string]interface{} {
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return patchValue("", m, skip, skipTree).(map[string]interface{})
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}
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func patchValue(name string, v interface{}, skip []string, skipTree []string) interface{} {
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// fmt.Printf("%q: %T\n", name, v)
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switch x := v.(type) {
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case map[string]interface{}:
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if len(x) == 0 {
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return x
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}
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mm := make(map[string]interface{})
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for k, v := range x {
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key := k
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if name != "" {
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key = name + "." + k
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}
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mm[k] = patchValue(key, v, skip, skipTree)
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}
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return mm
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case []interface{}:
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if len(x) == 0 {
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return nil
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}
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if strSliceContains(name, skipTree) {
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return x
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}
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if strSliceContains(name, skip) {
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for i, y := range x {
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x[i] = patchValue(name, y, skip, skipTree)
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}
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return x
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}
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if _, ok := x[0].(map[string]interface{}); !ok {
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return x
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}
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if len(x) > 1 {
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panic(fmt.Sprintf("%s: []map[string]interface{} with more than one element not supported: %s", name, v))
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}
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return patchValue(name, x[0], skip, skipTree)
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case []map[string]interface{}:
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if len(x) == 0 {
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return nil
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}
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if strSliceContains(name, skipTree) {
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return x
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}
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if strSliceContains(name, skip) {
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for i, y := range x {
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x[i] = patchValue(name, y, skip, skipTree).(map[string]interface{})
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}
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return x
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}
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if len(x) > 1 {
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panic(fmt.Sprintf("%s: []map[string]interface{} with more than one element not supported: %s", name, v))
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}
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return patchValue(name, x[0], skip, skipTree)
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default:
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return v
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}
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}
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func strSliceContains(s string, v []string) bool {
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for _, vv := range v {
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if s == vv {
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return true
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}
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}
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return false
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}
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