github.com/kaydxh/golang@v0.0.131/pkg/viper/viper.go (about)

     1  /*
     2   *Copyright (c) 2022, kaydxh
     3   *
     4   *Permission is hereby granted, free of charge, to any person obtaining a copy
     5   *of this software and associated documentation files (the "Software"), to deal
     6   *in the Software without restriction, including without limitation the rights
     7   *to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     8   *copies of the Software, and to permit persons to whom the Software is
     9   *furnished to do so, subject to the following conditions:
    10   *
    11   *The above copyright notice and this permission notice shall be included in all
    12   *copies or substantial portions of the Software.
    13   *
    14   *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    15   *IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    16   *FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    17   *AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    18   *LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    19   *OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
    20   *SOFTWARE.
    21   */
    22  package viper
    23  
    24  import (
    25  	"strings"
    26  
    27  	"github.com/spf13/viper"
    28  )
    29  
    30  //keys delim with dot(.), eg: "database.mysql"
    31  func GetViper(configFile string, subKeys string) *viper.Viper {
    32  	if configFile == "" {
    33  		v := viper.GetViper()
    34  		if v == nil {
    35  			return nil
    36  		}
    37  
    38  		return v
    39  	}
    40  
    41  	viper.SetConfigFile(configFile)
    42  	err := viper.ReadInConfig()
    43  	if err != nil {
    44  		return nil
    45  	}
    46  
    47  	if subKeys == "" {
    48  		return viper.GetViper()
    49  	}
    50  
    51  	v := viper.GetViper()
    52  	keys := strings.Split(subKeys, ".")
    53  
    54  	for _, k := range keys {
    55  		v = v.Sub(k)
    56  		if v == nil {
    57  			return nil
    58  		}
    59  	}
    60  
    61  	return v
    62  }
    63  
    64  func GetNewViper(configFile string, subKeys string) *viper.Viper {
    65  	if configFile == "" {
    66  		return nil
    67  	}
    68  
    69  	viperNew := viper.New()
    70  	viperNew.SetConfigFile(configFile)
    71  	err := viperNew.ReadInConfig()
    72  	if err != nil {
    73  		return nil
    74  	}
    75  
    76  	if subKeys == "" {
    77  		return viperNew
    78  	}
    79  
    80  	v := viperNew
    81  	keys := strings.Split(subKeys, ".")
    82  
    83  	for _, k := range keys {
    84  		v = v.Sub(k)
    85  		if v == nil {
    86  			return nil
    87  		}
    88  	}
    89  
    90  	return v
    91  }