Fix dev commands directory structure

dev/interactive/main.go

@@ -0,0 +1,29 @@
+package main
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"os"
+
+	"git.defalsify.org/festive/engine"
+)
+
+func main() {
+	var dir string
+	var root string
+	var size uint
+	flag.StringVar(&dir, "d", ".", "resource dir to read from")
+	flag.UintVar(&size, "s", 0, "max size of output")
+	flag.StringVar(&root, "root", "root", "entry point symbol")
+	flag.Parse()
+	fmt.Fprintf(os.Stderr, "starting session at symbol '%s' using resource dir: %s\n", root, dir)
+
+	ctx := context.Background()
+	en := engine.NewSizedEngine(dir, uint32(size))
+	err := engine.Loop(&en, root, ctx, os.Stdin, os.Stdout)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "loop exited with error: %v", err)
+		os.Exit(1)
+	}
+}