/
utils.go
106 lines (93 loc) · 2.38 KB
/
utils.go
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package cmd
import (
"encoding/json"
"errors"
"fmt"
"os"
"path/filepath"
"strings"
c "github.com/alsan/fb2/common"
"github.com/alsan/fb2/server/settings"
"github.com/spf13/cobra"
"gopkg.in/yaml.v2"
)
func generateKey() []byte {
k, err := settings.GenerateKey()
c.CheckErr(err)
return k
}
func marshal(filename string, data interface{}) error {
fd, err := os.Create(filename)
c.CheckErr(err)
defer fd.Close()
switch ext := filepath.Ext(filename); ext {
case ".json":
encoder := json.NewEncoder(fd)
encoder.SetIndent("", " ")
return encoder.Encode(data)
case ".yml", ".yaml": //nolint:goconst
encoder := yaml.NewEncoder(fd)
return encoder.Encode(data)
default:
return errors.New("invalid format: " + ext)
}
}
func unmarshal(filename string, data interface{}) error {
fd, err := os.Open(filename)
c.CheckErr(err)
defer fd.Close()
switch ext := filepath.Ext(filename); ext {
case ".json":
return json.NewDecoder(fd).Decode(data)
case ".yml", ".yaml":
return yaml.NewDecoder(fd).Decode(data)
default:
return errors.New("invalid format: " + ext)
}
}
func jsonYamlArg(cmd *cobra.Command, args []string) error {
if err := cobra.ExactArgs(1)(cmd, args); err != nil {
return err
}
switch ext := filepath.Ext(args[0]); ext {
case ".json", ".yml", ".yaml":
return nil
default:
return errors.New("invalid format: " + ext)
}
}
func cleanUpInterfaceMap(in map[interface{}]interface{}) map[string]interface{} {
result := make(map[string]interface{})
for k, v := range in {
result[fmt.Sprintf("%v", k)] = cleanUpMapValue(v)
}
return result
}
func cleanUpInterfaceArray(in []interface{}) []interface{} {
result := make([]interface{}, len(in))
for i, v := range in {
result[i] = cleanUpMapValue(v)
}
return result
}
func cleanUpMapValue(v interface{}) interface{} {
switch v := v.(type) {
case []interface{}:
return cleanUpInterfaceArray(v)
case map[interface{}]interface{}:
return cleanUpInterfaceMap(v)
default:
return v
}
}
// convertCmdStrToCmdArray checks if cmd string is blank (whitespace included)
// then returns empty string array, else returns the splitted word array of cmd.
// This is to ensure the result will never be []string{""}
func convertCmdStrToCmdArray(cmd string) []string {
var cmdArray []string
trimmedCmdStr := strings.TrimSpace(cmd)
if trimmedCmdStr != "" {
cmdArray = strings.Split(trimmedCmdStr, " ")
}
return cmdArray
}