Add stub files

dayXX/example.txt

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+

dayXX/input.txt

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+

dayXX/parse.go

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+package dayXX
+
+import (
+	"git.elis.nu/etu/aoc2020/utils"
+)
+
+var rows []string
+
+func ParseFile(input string) {
+	// Parse file
+	for _, line := range utils.GetLinesFromFile("dayXX/" + input + ".txt") {
+		rows = append(rows, line)
+	}
+}

dayXX/solve1.go

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+package dayXX
+
+import (
+	"fmt"
+	"log"
+)
+
+func Solve1() {
+	fmt.Println(rows)
+
+	log.Printf("2020-12-XX.01: Answer: %d\n", len(rows))
+}

dayXX/solve2.go

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+package dayXX
+
+import (
+	"fmt"
+	"log"
+)
+
+func Solve2() {
+	fmt.Println(len(rows))
+
+	log.Printf("2020-12-XX.02: Answer: %d\n", len(rows))
+}

go.mod

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+module git.elis.nu/etu/aoc2020
+
+go 1.15

main.go

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+package main // import "git.elis.nu/etu/aoc2020"
+
+import (
+	"log"
+	"os"
+)
+
+func main() {
+	if len(os.Args) != 3 {
+		log.Fatal("Usage: Missing arguments: [dayXX] [input].txt")
+	}
+
+	switch os.Args[1] {
+	}
+}

utils/perf.go

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+package utils
+
+import (
+	"log"
+	"os"
+	"time"
+)
+
+func Perf(date string, parse func(string), solve1 func(), solve2 func()) {
+	// Store time to print out execution time
+	start := time.Now()
+
+	log.Printf("%s: Starting program to solve %s\n", date, date)
+
+	parse(os.Args[2])
+
+	log.Printf("%s: Spent %s on parsing input\n", date, time.Since(start))
+	start = time.Now()
+
+	solve1()
+
+	log.Printf("%s.01: Spent %s on solving part 1\n", date, time.Since(start))
+	start = time.Now()
+
+	solve2()
+
+	log.Printf("%s.02: Spent %s on solving part 2\n", date, time.Since(start))
+}

utils/readfile.go

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+package utils
+
+import (
+	"bufio"
+	"log"
+	"os"
+)
+
+func GetLinesFromFile(name string) []string {
+	var rows []string
+
+	// Get file handler
+	fh, err := os.Open(name)
+	defer fh.Close()
+
+	if err != nil {
+		log.Fatal("Failed to open file:", err)
+	}
+
+	// Parse file
+	scanner := bufio.NewScanner(fh)
+	for scanner.Scan() {
+		rows = append(rows, scanner.Text())
+	}
+
+	// Print eventual error from parsing the file
+	if err := scanner.Err(); err != nil {
+		log.Fatal(err)
+	}
+
+	return rows
+}