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// Copyright 2017-present The Hugo Authors. All rights reserved.
//
// 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 (
"strings"
"github.com/spf13/cast"
"github.com/spf13/viper"
)
// Provider provides the configuration settings for Hugo.
type Provider interface {
GetString(key string) string
GetInt(key string) int
GetBool(key string) bool
GetStringMap(key string) map[string]interface{}
GetStringMapString(key string) map[string]string
GetStringSlice(key string) []string
Get(key string) interface{}
Set(key string, value interface{})
IsSet(key string) bool
}
// FromConfigString creates a config from the given YAML, JSON or TOML config. This is useful in tests.
func FromConfigString(config, configType string) (Provider, error) {
v := viper.New()
v.SetConfigType(configType)
if err := v.ReadConfig(strings.NewReader(config)); err != nil {
return nil, err
}
return v, nil
}
// GetStringSlicePreserveString returns a string slice from the given config and key.
// It differs from the GetStringSlice method in that if the config value is a string,
// we do not attempt to split it into fields.
func GetStringSlicePreserveString(cfg Provider, key string) []string {
sd := cfg.Get(key)
if sds, ok := sd.(string); ok {
return []string{sds}
}
return cast.ToStringSlice(sd)
}
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