func (provider *Kv) list(keys ...string) []string {
joinedKeys := strings.Join(keys, "")
keysPairs, err := provider.kvclient.List(joinedKeys)
if err != nil {
log.Debugf("Cannot get keys %s %s ", joinedKeys, err)
return nil
}
directoryKeys := make(map[string]string)
for _, key := range keysPairs {
directory := strings.Split(strings.TrimPrefix(key.Key, joinedKeys), "/")[0]
directoryKeys[directory] = joinedKeys + directory
}
return fun.Values(directoryKeys).([]string)
}
func (provider *KvProvider) loadConfig() *Configuration {
configuration := new(Configuration)
templateObjects := struct {
Prefix string
}{
provider.Prefix,
}
var KvFuncMap = template.FuncMap{
"List": func(keys ...string) []string {
joinedKeys := strings.Join(keys, "")
keysPairs, err := provider.kvclient.List(joinedKeys)
if err != nil {
log.Error("Error getting keys: ", joinedKeys, err)
return nil
}
directoryKeys := make(map[string]string)
for _, key := range keysPairs {
directory := strings.Split(strings.TrimPrefix(key.Key, strings.TrimPrefix(joinedKeys, "/")), "/")[0]
directoryKeys[directory] = joinedKeys + directory
}
return fun.Values(directoryKeys).([]string)
},
"Get": func(keys ...string) string {
joinedKeys := strings.Join(keys, "")
keyPair, err := provider.kvclient.Get(joinedKeys)
if err != nil {
log.Debug("Error getting key: ", joinedKeys, err)
return ""
} else if keyPair == nil {
return ""
}
return string(keyPair.Value)
},
"Last": func(key string) string {
splittedKey := strings.Split(key, "/")
return splittedKey[len(splittedKey)-1]
},
}
tmpl := template.New(provider.Filename).Funcs(KvFuncMap)
if len(provider.Filename) > 0 {
_, err := tmpl.ParseFiles(provider.Filename)
if err != nil {
log.Error("Error reading file", err)
return nil
}
} else {
buf, err := Asset("templates/kv.tmpl")
if err != nil {
log.Error("Error reading file", err)
}
_, err = tmpl.Parse(string(buf))
if err != nil {
log.Error("Error reading file", err)
return nil
}
}
var buffer bytes.Buffer
err := tmpl.Execute(&buffer, templateObjects)
if err != nil {
log.Error("Error with kv template:", err)
return nil
}
if _, err := toml.Decode(buffer.String(), configuration); err != nil {
log.Error("Error creating kv configuration:", err)
log.Error(buffer.String())
return nil
}
return configuration
}