license: embed license in executable

Signed-off-by: Ophestra Umiker <cat@ophivana.moe>

cli.go

@@ -25,10 +25,9 @@ func init() {
 }
 
 func copyArgs() {
-	if printVersion {
-		fmt.Println(Version)
-		os.Exit(0)
-	}
+	tryLauncher()
+	tryVersion()
+	tryLicense()
 
 	command = flag.Args()
 

flake.nix

@@ -31,7 +31,7 @@
               packages = [
                 (buildGoModule rec {
                   pname = "ego";
-                  version = "flake";
+                  version = "0.0.0-flake";
 
                   src = ./.;
                   vendorHash = null; # we have no dependencies :3

license.go

@@ -0,0 +1,26 @@
+package main
+
+import (
+	_ "embed"
+	"flag"
+	"fmt"
+	"os"
+)
+
+var (
+	//go:embed LICENSE
+	license string
+
+	printLicense bool
+)
+
+func init() {
+	flag.BoolVar(&printLicense, "license", false, "Print license")
+}
+
+func tryLicense() {
+	if printLicense {
+		fmt.Println(license)
+		os.Exit(0)
+	}
+}

main.go

@@ -16,6 +16,13 @@ import (
 
 var Version = "impure"
 
+func tryVersion() {
+	if printVersion {
+		fmt.Println(Version)
+		os.Exit(0)
+	}
+}
+
 var (
 	ego     *user.User
 	uid     int
@@ -42,7 +49,6 @@ const (
 
 func main() {
 	flag.Parse()
-	tryLauncher()
 	copyArgs()
 
 	if u, err := strconv.Atoi(ego.Uid); err != nil {