add logChat exporter

cmd/mc-logChat/README.md

@@ -0,0 +1,7 @@
+# MC LOGChat
+
+This tool extracts all chat messages from a minecraft logfile, and exports it to chat.txt
+
+## Usage
+- `go install git.merith.xyz/packages/utils/cmd/mc-logChat`
+- `mc-logChat <logfile>`

cmd/mc-logChat/main.go

@@ -0,0 +1,44 @@
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+	"strings"
+)
+
+func main() {
+	// check if there is an argument
+	if len(os.Args) < 2 {
+		fmt.Println("Error: No file specified")
+		os.Exit(1)
+	}
+	arg := os.Args[1]
+
+	file, err := ioutil.ReadFile(arg)
+	if err != nil {
+		fmt.Println("Error: ", err)
+		os.Exit(1)
+	}
+
+	// convert file to string
+	str := string(file)
+	// split string into slice of strings by new line
+	lines := strings.Split(str, "\n")
+
+	chat := []string{}
+	// loop through slice of strings
+	for _, line := range lines {
+		if strings.Contains(line, "[CHAT]") {
+			chat = append(chat, line)
+		}
+	}
+
+	// write chat to file
+	err = ioutil.WriteFile("chat.txt", []byte(strings.Join(chat, "\n")), 0644)
+	if err != nil {
+		fmt.Println("Error: ", err)
+		os.Exit(1)
+	}
+
+}