add cli

rpc/cli.go

@@ -0,0 +1,27 @@
+package main
+
+import (
+	"flag"
+	"log"
+	"os"
+	"strings"
+)
+
+var in = flag.String("in", "", "required path to input file")
+var out = flag.String("out", "", "optional path to output file")
+
+func main() {
+	log.SetFlags(log.Lshortfile)
+	flag.Parse()
+	if *in == "" {
+		log.Panic("empty input file. maybe there was no input arg?")
+	}
+	res := compile(*in)
+	if *out == "" {
+		*out = strings.Replace(*in, ".go", ".out.go", 1)
+	}
+	if err := os.WriteFile(*out, res, 0644); err != nil {
+		log.Panic("failed to write to output file: ", *out)
+	}
+	log.Print("wrote to output file: ", *out)
+}