util.go

package main

import (
	"fmt"
	"strings"
)

func normalizeIndexTemplate(tpl map[string]interface{}) {
	delete(tpl, "version")
	if settings, ok := tpl["settings"]; ok {
		if settingsMap, ok := settings.(map[string]interface{}); ok {
			tpl["settings"] = normalizedIndexSettings(settingsMap)
		}
	}
}

func normalizedIndexSettings(settings map[string]interface{}) map[string]interface{} {
	f := flattenMap(settings)
	for k, v := range f {
		f[k] = fmt.Sprintf("%v", v)
		if !strings.HasPrefix(k, "index.") {
			f["index."+k] = v
			delete(f, k)
		}
	}

	return f
}

func flattenMap(m map[string]interface{}) map[string]interface{} {
	f := make(map[string]interface{})
	for k, v := range m {
		if vm, ok := v.(map[string]interface{}); ok {
			fm := flattenMap(vm)
			for k2, v2 := range fm {
				f[k+"."+k2] = v2
			}
		} else {
			f[k] = v
		}
	}

	return f
}

func intp(i int) *int {
	return &i
}

func stringp(s string) *string {
	return &s
}

func boolp(b bool) *bool {
	return &b
}