day01: project refactor

Author: rafaloperatus

go.mod

@@ -0,0 +1,3 @@
+module adventofcode2021
+
+go 1.16

01/data src/01/data

@@ -1,15 +1,13 @@
 package main
 
 import (
-	"bufio"
+	"adventofcode2021/src/utils"
 	"fmt"
-	"log"
-	"os"
 	"strconv"
 )
 
 func main() {
-	var lines = readFile()
+	var lines = utils.ReadLines()
 	var depths []int
 	for _, value := range lines {
 		if n, err := strconv.Atoi(value); err == nil {
@@ -43,18 +41,3 @@ func calcIncreases() func(int) int {
 		return cnt
 	}
 }
-
-func readFile() []string {
-	file, err := os.Open("data")
-	if err != nil {
-		log.Fatalf("failed opening file: %s", err)
-	}
-	scanner := bufio.NewScanner(file)
-	scanner.Split(bufio.ScanLines)
-	var txtlines []string
-	for scanner.Scan() {
-		txtlines = append(txtlines, scanner.Text())
-	}
-	file.Close()
-	return txtlines
-}

01/solve.go src/01/solve.go

@@ -0,0 +1,22 @@
+package utils
+
+import (
+	"bufio"
+	"log"
+	"os"
+)
+
+func ReadLines() []string {
+	file, err := os.Open("data")
+	if err != nil {
+		log.Fatalf("failed opening file: %s", err)
+	}
+	scanner := bufio.NewScanner(file)
+	scanner.Split(bufio.ScanLines)
+	var txtlines []string
+	for scanner.Scan() {
+		txtlines = append(txtlines, scanner.Text())
+	}
+	file.Close()
+	return txtlines
+}