2022/go/main.go

   1 package main
   2
   3 import (
   4         "fmt"
   5 //      "math/rand"
   6         "os"
   7 //      "strings"
   8 //      "time"
   9
  10         "adventofcode2022/utils"
  11         "adventofcode2022/day01"
  12         "adventofcode2022/day02"
  13         "adventofcode2022/day03"
  14         "adventofcode2022/day04"
  15         "adventofcode2022/day05"
  16         "adventofcode2022/day06"
  17         "adventofcode2022/day07"
  18         "adventofcode2022/day08"
  19         "adventofcode2022/day09"
  20         "adventofcode2022/day10"
  21
  22 )
  23
  24 // Usage: go run main.go <NN>
  25 // assumes input is in day<NN>/input.txt
  26 func main() {
  27         d := day()
  28         fmt.Printf("Running day %02d\n", d)
  29
  30         switch d {
  31         case 1:
  32                 fmt.Printf("part 1: %d\n", day01.Part1(utils.Readfile(d)))
  33                 fmt.Printf("part 2: %d\n", day01.Part2(utils.Readfile(d)))
  34         case 2:
  35                 fmt.Printf("part 1: %d\n", day02.Part1(utils.Readfile(d)))
  36                 fmt.Printf("part 2: %d\n", day02.Part2(utils.Readfile(d)))
  37         case 3:
  38                 fmt.Printf("part 1: %d\n", day03.Part1(utils.Readfile(d)))
  39                 fmt.Printf("part 2: %d\n", day03.Part2(utils.Readfile(d)))
  40         case 4:
  41                 fmt.Printf("part 1: %d\n", day04.Part1(utils.Readfile(d)))
  42                 fmt.Printf("part 2: %d\n", day04.Part2(utils.Readfile(d)))
  43         case 5:
  44                 fmt.Printf("part 1: %s\n", day05.Part1(utils.Readfile(d)))
  45                 fmt.Printf("part 2: %s\n", day05.Part2(utils.Readfile(d)))
  46         case 6:
  47                 fmt.Printf("part 1: %d\n", day06.Part1(utils.Readfile(d)))
  48                 fmt.Printf("part 2: %d\n", day06.Part2(utils.Readfile(d)))
  49         case 7:
  50                 fmt.Printf("part 1: %d\n", day07.Part1(utils.Readfile(d)))
  51                 fmt.Printf("part 2: %d\n", day07.Part2(utils.Readfile(d)))
  52         case 8:
  53                 fmt.Printf("part 1: %d\n", day08.Part1(utils.Readfile(d)))
  54                 fmt.Printf("part 2: %d\n", day08.Part2(utils.Readfile(d)))
  55         case 9:
  56                 fmt.Printf("part 1: %d\n", day09.Part1(utils.Readfile(d)))
  57                 fmt.Printf("part 2: %d\n", day09.Part2(utils.Readfile(d)))
  58         case 10:
  59                 fmt.Printf("part 1: %d\n", day10.Part1(utils.Readfile(d)))
  60                 fmt.Printf("part 2: %s\n", day10.Part2(utils.Readfile(d)))
  61         default:
  62                 panic(fmt.Errorf("no such day: %d", d))
  63         }
  64 }
  65
  66 // Reads day from os.Args.
  67 func day() int {
  68         latest := 9
  69         if len(os.Args) == 1 {
  70                 return latest
  71         }
  72
  73         if os.Args[1] == "next" {
  74                 genNext(latest + 1)
  75                 os.Exit(0)
  76         }
  77         day := utils.MustAtoi(os.Args[1])
  78         return day
  79 }
  80
  81
  82 func genNext(n int) {
  83         os.Mkdir(fmt.Sprintf("day%02d", n), 0755)
  84         f, err := os.Create(fmt.Sprintf("day%02d/day%02d.go", n, n))
  85         utils.PanicOnErr(err)
  86         defer f.Close()
  87         f.WriteString(fmt.Sprintf(`package day%02d
  88
  89 func Part1(input string) int {
  90         return 0
  91 }
  92
  93 func Part2(input string) int {
  94         return 0
  95 }
  96 `, n))
  97         fmt.Printf("wrote day%02d/day%02d.go\n", n, n)
  98
  99         f, err = os.Create(fmt.Sprintf("day%02d/day%02d_test.go", n, n))
 100         utils.PanicOnErr(err)
 101         defer f.Close()
 102         f.WriteString(fmt.Sprintf(`package day%02d
 103
 104 import (
 105         "testing"
 106
 107         "github.com/stretchr/testify/require"
 108 )
 109
 110 func TestPart1(t *testing.T) {
 111         r := Part1("")
 112         require.Equal(t, 0, r)
 113 }
 114
 115 func TestPart2(t *testing.T) {
 116         r := Part2("")
 117         require.Equal(t, 0, r)
 118 }
 119 `, n))
 120         fmt.Printf("wrote day%02d/day%02d_test.go\n", n, n)
 121
 122 }