An alarm system! Thing.

Navi.go

package main

import (
  "time"
	"encoding/json"
	"fmt"
	"io/ioutil"
	"os"
  "os/exec"
  "strings"
)

type Config struct {
	Alarms []struct {
		Name  string
    Command string
    Arguments []string
		Match struct {
			Day      []int
			Month    []int
			Year     []int
			Second   []int
			Minute   []int
			Hour     []int
			Weekday  []int
		}
		Modulo struct {
			Day      int
			Month    int
			Year     int
			Second   int
			Minute   int
			Hour     int
			Weekday  int
		}
	}
}

var config Config

func init() {
	file, e := ioutil.ReadFile("./config.json")
	if e != nil {
		fmt.Printf("Config error: %v\n", e)
		os.Exit(1)
	}
	json.Unmarshal(file, &config)
	fmt.Printf("Loaded config: %v\n", config)
}

func main() {
	for {
    now := time.Now()
    for _,v := range(config.Alarms) {
      if (len(v.Match.Day)>0 && !canFind(v.Match.Day, now.Day()))             ||
        (len(v.Match.Month)>0 && !canFind(v.Match.Month, int(now.Month())))   ||
        (len(v.Match.Year)>0 && !canFind(v.Match.Year, now.Year()))           ||
        (len(v.Match.Second)>0 && !canFind(v.Match.Second, now.Second()))     ||
        (len(v.Match.Minute)>0 && !canFind(v.Match.Minute, now.Minute()))     ||
        (len(v.Match.Hour)>0 && !canFind(v.Match.Hour, now.Hour()))           ||
        (len(v.Match.Weekday)>0&&!canFind(v.Match.Weekday,int(now.Weekday())))||
        (v.Modulo.Day != 0       && now.Day()%v.Modulo.Day != 0)              ||
        (v.Modulo.Month != 0      && int(now.Month())%v.Modulo.Month != 0)    ||
        (v.Modulo.Year != 0       && now.Year()%v.Modulo.Year != 0)           ||
        (v.Modulo.Second != 0     && now.Second()%v.Modulo.Second != 0)       ||
        (v.Modulo.Minute != 0     && now.Minute()%v.Modulo.Minute != 0)       ||
        (v.Modulo.Hour != 0       && now.Hour()%v.Modulo.Hour != 0)           ||
        (v.Modulo.Weekday != 0  && int(now.Weekday())%v.Modulo.Weekday != 0) {
        continue
      } else {
        fmt.Printf("%s: %s %s\n", v.Name, v.Command, v.Arguments)
        go func() {
          shell := exec.Command(v.Command,v.Arguments...)
          out, _ := shell.CombinedOutput()
          lines := strings.Split(string(out), "\n")
          for i, line := range(lines) {
            if len(line) != 0 {
              fmt.Printf("%d: %s\n",i, line)
            }
          }
        }()
      }
    }
    time.Sleep(time.Second)
	}
}
func canFind(x []int, y int) bool {
  for _,z := range(x) { if y == z { return true } }
  return false
}