Cleanup of entrypoint to make it a single file

cmd/crx/main.go

@@ -1,11 +1,16 @@
 package main
 
 import (
+	"flag"
 	"fmt"
 	"os"
+	"os/exec"
+
+	"github.com/customrealms/cli/lib"
 )
 
 const VERSION = "0.1.0"
+const DEFAULT_MC_VERSION = "1.17.1"
 
 func main() {
 
@@ -27,3 +32,43 @@ func main() {
 	}
 
 }
+
+func crxBuild() {
+
+	var projectDir string
+	var mcVersion string
+	var outputFile string
+
+	flag.StringVar(&projectDir, "p", ".", "plugin project directory")
+	flag.StringVar(&mcVersion, "mc", DEFAULT_MC_VERSION, "Minecraft version number target")
+	flag.StringVar(&outputFile, "o", "", "output JAR file path")
+
+	flag.CommandLine.Parse(os.Args[2:])
+
+	if len(outputFile) == 0 {
+		fmt.Println("Output JAR file is required: -o option")
+		os.Exit(1)
+	}
+
+	// Build the local directory
+	cmd := exec.Command("npm", "run", "build")
+	cmd.Dir = projectDir
+	if err := cmd.Run(); err != nil {
+		panic(err)
+	}
+
+	// Define the specification for the JAR template
+	jarTemplate := lib.JarTemplate{
+		MCVersion: mcVersion,
+	}
+
+	if err := lib.BundleJar(
+		projectDir,
+		&jarTemplate,
+		mcVersion,
+		outputFile,
+	); err != nil {
+		panic(err)
+	}
+
+}