Adding stats

Author: teivah

2023/day22-go/main_test.go

@@ -1,7 +1,9 @@
 package main
 
 import (
+	"fmt"
 	"os"
+	"runtime"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -27,7 +29,37 @@ func TestFs2Test(t *testing.T) {
 }
 
 func TestFs2Input(t *testing.T) {
-	f, err := os.Open("input.txt")
-	require.NoError(t, err)
-	assert.Equal(t, 95059, fs2(f))
+	fmt.Println("Memory usage before allocating nil slices:")
+	PrintMemUsage()
+
+	AllocNilSlices(1000000)
+
+	fmt.Println("Memory usage after allocating nil slices:")
+	PrintMemUsage()
+
+	AllocEmptySlices(1000000)
+
+	fmt.Println("Memory usage after allocating empty slices:")
+	PrintMemUsage()
+}
+
+func AllocNilSlices(n int) {
+	for i := 0; i < n; i++ {
+		var s []int
+		_ = s
+	}
+}
+
+func AllocEmptySlices(n int) {
+	for i := 0; i < n; i++ {
+		s := make([]int, 0)
+		_ = s
+	}
+}
+
+func PrintMemUsage() {
+	var m runtime.MemStats
+	runtime.ReadMemStats(&m)
+	fmt.Printf("Alloc = %v MiB", m.Alloc)
+	fmt.Println()
 }

README.md

@@ -75,8 +75,8 @@ Stats: Rust (56%), Go (44%)
 * [Day 22](https://adventofcode.com/2022/day/22): [Go](2022/day22-go/main.go)
 * [Day 21](https://adventofcode.com/2022/day/21): [Go](2022/day21-go/main.go)
 * [Day 20](https://adventofcode.com/2022/day/20): [Go](2022/day20-go/main.go)
-* [Day 19](https://adventofcode.com/2022/day/19): [Rust (part 1)](2022/day19-rust/src/lib.rs), [Go (part 1 and 2)](2022/day19-go/main.go)
-* [Day 18](https://adventofcode.com/2022/day/16): [Rust (part 1)](2022/day18-rust/src/lib.rs), [Go (part 1 and 2)](2022/day18-go/main.go)
+* [Day 19](https://adventofcode.com/2022/day/19): [Rust (part 1)](2022/day19-rust/src/lib.rs), [Go](2022/day19-go/main.go)
+* [Day 18](https://adventofcode.com/2022/day/16): [Rust (part 1)](2022/day18-rust/src/lib.rs), [Go](2022/day18-go/main.go)
 * [Day 17](https://adventofcode.com/2022/day/16): [Go](2022/day17-go/main.go)
 * [Day 16](https://adventofcode.com/2022/day/16): [Go](2022/day16-go/main.go)
 * [Day 15](https://adventofcode.com/2022/day/15): [Go](2022/day15-go/main.go)

cmd/go.mod

@@ -0,0 +1,5 @@
+module github.com/teivah/aoc/stats
+
+go 1.21.4
+
+require github.com/teivah/advent-of-code v1.9.1 // indirect

cmd/go.sum

@@ -0,0 +1,2 @@
+github.com/teivah/advent-of-code v1.9.1 h1:m2U+T1q2x24a37r44cP11nOPQlgNi/M73zmTI1RUCps=
+github.com/teivah/advent-of-code v1.9.1/go.mod h1:p1BrdH9bL5eXxtTxuLfUSW+jYtq9fYzKhzcpTePbpsw=

cmd/stats.go

@@ -0,0 +1,46 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strings"
+)
+
+const totalStars = 450
+
+func main() {
+	if err := run(); err != nil {
+		panic(err)
+	}
+}
+
+func run() error {
+	f, err := os.Open("README.md")
+	if err != nil {
+		return err
+	}
+
+	stats := map[string]int{
+		"Go":     0,
+		"Python": 0,
+		"Rust":   0,
+	}
+	scanner := bufio.NewScanner(f)
+	for scanner.Scan() {
+		line := scanner.Text()
+
+		for language := range stats {
+			if strings.Contains(line, fmt.Sprintf("[%s]", language)) {
+				stats[language] += 2
+			} else if strings.Contains(line, fmt.Sprintf("[%s ", language)) {
+				stats[language] += 1
+			}
+		}
+	}
+
+	for language, count := range stats {
+		fmt.Printf("%s: %.2f%%\n", language, float64(count)/float64(totalStars)*100)
+	}
+	return nil
+}

justfile

@@ -40,6 +40,7 @@ gen LANGUAGE YEAR DAY:
   idea {{YEAR}}/day{{DAY}}-{{LANGUAGE}}
 
 stats:
+  go run cmd/stats.go
   echo "Go lines: $(find . -name '*.go' -exec cat {} + | wc -l)"
   echo "Go lines without tests: $(find . -name '*.go' ! -name '*_test.go' -exec cat {} + | wc -l)"
   echo "Rust lines: $(find . -name '*.rs' ! -name '*_test.go' -exec cat {} + | wc -l)"