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package main
import (
"encoding/json"
"fmt"
"os"
)
type Sources map[string]Source
func (s *Sources) Add(name string, d Source) error {
if s.Exists(name) {
return fmt.Errorf("source already exists")
}
(*s)[name] = d
return nil
}
func (s *Sources) Exists(name string) bool {
_, ok := (*s)[name]
return ok
}
func (s *Sources) Drop(url string) {
delete((*s), url)
}
func (s *Sources) Save(path string) error {
file, err := os.Create(path)
if err != nil {
return err
}
encoder := json.NewEncoder(file)
encoder.SetIndent("", " ")
return encoder.Encode(s)
}
func (s *Sources) Load(path string) error {
file, err := os.Open(path)
if err != nil {
return err
}
return json.NewDecoder(file).Decode(s)
}
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