chore: preparing for advent of code 2024

.gitignore

@@ -4,4 +4,4 @@
 npm-debug.log
 node_modules
 rust/**/target
-
+input.txt

README.md

@@ -14,6 +14,7 @@ This is challenging for me, but I also really really like it. I don't do these t
 
 | Year | Language         | Main solution | Link                     |
 | ---- | ---------------- | ------------- | ------------------------ |
+| 2024 | Go               | X             | [Link](/go/2024)         |
 | 2023 | Rust             | X             | [Link](/rust/2023)       |
 | 2023 | Go               |               | [Link](/go/2023)         |
 | 2023 | TypeScript (Bun) |               | [Link](/typescript/2023) |

go/2024/Makefile

@@ -0,0 +1,10 @@
+PADDED_DAY = $(shell printf "%02d" $(DAY))
+
+create-day:
+	@cp -r ./template puzzles/day$(PADDED_DAY)
+
+test:
+	@go test ./puzzles/day$(PADDED_DAY)
+
+run:
+	@go run ./puzzles/day$(PADDED_DAY)/main.go

go/2024/README.md

@@ -0,0 +1,12 @@
+# Advent of Code 2024
+
+I've been enjoying Go this year and thought I might learn more by doing AoC in it this year!
+
+## Advent of Code 2024 Story
+
+TBD
+
+## Days
+
+| Day | #1  | #1 Answer | #2  | #2 Answer |
+| --- | --- | --------: | --- | --------: |

go/2024/go.mod

@@ -0,0 +1,11 @@
+module github.com/believer/aoc-2024
+
+go 1.23.3
+
+require github.com/stretchr/testify v1.10.0
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)

go/2024/go.sum

@@ -0,0 +1,10 @@
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
+github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

go/2024/template/main.go

@@ -0,0 +1,18 @@
+package main
+
+import (
+	"fmt"
+)
+
+func main() {
+	fmt.Println("Part 1: ", part1("input.txt"))
+	fmt.Println("Part 2: ", part2("input.txt"))
+}
+
+func part1(name string) int {
+	return 0
+}
+
+func part2(name string) int {
+	return 0
+}

go/2024/template/main_test.go

@@ -0,0 +1,23 @@
+package main
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestPart1(t *testing.T) {
+	t.Run("Part 1", func(t *testing.T) {
+		expected := 0
+		actual := part1("test-input.txt")
+		assert.Equal(t, expected, actual)
+	})
+}
+
+func TestPart2(t *testing.T) {
+	t.Run("Part 2", func(t *testing.T) {
+		expected := 0
+		actual := part2("test-input.txt")
+		assert.Equal(t, expected, actual)
+	})
+}

go/2024/utils/files/files.go

@@ -0,0 +1,97 @@
+package files
+
+import (
+	"bufio"
+	"os"
+	"path"
+	"runtime"
+)
+
+// Borrowed from https://github.com/kylehoehns/aoc-2023-go/blob/main/pkg/files/filereader.go
+// Seems like a great starting point for me to learn and adjust according to my needs.
+
+// ReadLines reads a file and returns a slice of strings, one for each line
+func ReadLines(name string) []string {
+	_, callingFile, _, ok := runtime.Caller(1)
+
+	if !ok {
+		panic("unable to find caller so cannot build path to read file")
+	}
+
+	return readLines(name, callingFile)
+}
+
+// Read reads a file and returns a string containing the entire file
+func Read(name string) string {
+	_, callingFile, _, ok := runtime.Caller(1)
+
+	if !ok {
+		panic("unable to find caller so cannot build path to read file")
+	}
+
+	b, err := os.ReadFile(path.Join(path.Dir(callingFile), name))
+
+	if err != nil {
+		panic(err)
+	}
+
+	return string(b)
+}
+
+// ReadParagraphs reads a file and returns a slice of slices of strings, one for each line
+// A gap of one or more blank lines is used to split the file into groups
+func ReadParagraphs(name string) [][]string {
+	_, callingFile, _, ok := runtime.Caller(1)
+
+	if !ok {
+		panic("unable to find caller so cannot build path to read file")
+	}
+
+	lines := readLines(name, callingFile)
+
+	var groups [][]string
+
+	curGroup := make([]string, 0)
+
+	for _, line := range lines {
+		if line == "" {
+			groups = append(groups, curGroup)
+			curGroup = make([]string, 0)
+		} else {
+			curGroup = append(curGroup, line)
+		}
+	}
+
+	if len(curGroup) > 0 {
+		groups = append(groups, curGroup)
+	}
+
+	return groups
+}
+
+func readLines(name string, callingFile string) []string {
+	inputFile, err := os.Open(path.Join(path.Dir(callingFile), name))
+
+	if err != nil {
+		panic(err)
+	}
+
+	defer func(inputFile *os.File) {
+		err := inputFile.Close()
+
+		if err != nil {
+			panic(err)
+		}
+	}(inputFile)
+
+	scanner := bufio.NewScanner(inputFile)
+	scanner.Split(bufio.ScanLines)
+
+	var lines []string
+
+	for scanner.Scan() {
+		lines = append(lines, scanner.Text())
+	}
+
+	return lines
+}