wehub-resource-sync
78 lines
2.0 KiB
Go
78 lines
2.0 KiB
Go
// Copyright 2021 Dolthub, Inc.
|
|
//
|
|
// 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 config
|
|
|
|
import (
|
|
"fmt"
|
|
"strings"
|
|
)
|
|
|
|
// PrefixConfig decorates read and write access to the underlying config by appending a prefix to the accessed keys
|
|
// on reads and writes. Used for the sqlserver.global persisted system variables.
|
|
type PrefixConfig struct {
|
|
c ReadWriteConfig
|
|
prefix string
|
|
}
|
|
|
|
func NewPrefixConfig(cfg ReadWriteConfig, prefix string) PrefixConfig {
|
|
return PrefixConfig{c: cfg, prefix: prefix}
|
|
}
|
|
|
|
func (nsc PrefixConfig) path(key string) string {
|
|
return fmt.Sprintf("%s.%s", nsc.prefix, key)
|
|
}
|
|
|
|
func (nsc PrefixConfig) GetString(key string) (value string, err error) {
|
|
return nsc.c.GetString(nsc.path(key))
|
|
}
|
|
|
|
func (nsc PrefixConfig) GetStringOrDefault(key, defStr string) string {
|
|
return nsc.c.GetStringOrDefault(nsc.path(key), defStr)
|
|
}
|
|
|
|
func (nsc PrefixConfig) SetStrings(updates map[string]string) error {
|
|
for k, v := range updates {
|
|
delete(updates, k)
|
|
updates[nsc.path(k)] = v
|
|
}
|
|
return nsc.c.SetStrings(updates)
|
|
}
|
|
|
|
func (nsc PrefixConfig) Iter(cb func(string, string) (stop bool)) {
|
|
nsc.c.Iter(func(k, v string) (stop bool) {
|
|
if strings.HasPrefix(k, nsc.prefix+".") {
|
|
return cb(strings.TrimPrefix(k, nsc.prefix+"."), v)
|
|
}
|
|
return false
|
|
})
|
|
return
|
|
}
|
|
|
|
func (nsc PrefixConfig) Size() int {
|
|
count := 0
|
|
nsc.Iter(func(k, v string) (stop bool) {
|
|
count += 1
|
|
return false
|
|
})
|
|
return count
|
|
}
|
|
|
|
func (nsc PrefixConfig) Unset(params []string) error {
|
|
for i, k := range params {
|
|
params[i] = nsc.path(k)
|
|
}
|
|
return nsc.c.Unset(params)
|
|
}
|