mailpopbox.go

   1 package main
   2
   3 import (
   4         "encoding/json"
   5         "fmt"
   6         "os"
   7 )
   8
   9 func main() {
  10         if len(os.Args) != 2 {
  11                 fmt.Fprintf(os.Stderr, "Usage: %s config.json\n", os.Args[0])
  12                 os.Exit(1)
  13         }
  14
  15         configFile, err := os.Open(os.Args[1])
  16         if err != nil {
  17                 fmt.Fprintf(os.Stderr, "config file: %s\n", err)
  18                 os.Exit(2)
  19         }
  20
  21         var config Config
  22         if err := json.NewDecoder(configFile).Decode(&config); err != nil {
  23                 fmt.Fprintf(os.Stderr, "config file: %s\n", err)
  24                 os.Exit(3)
  25         }
  26         configFile.Close()
  27 }