message: Migrate from argparse to yargs
diff: -import { ArgumentParser } from "argparse";
  import * as fs from "fs";
  import { join } from "path";
  +import yargs from "yargs";
  import { TsRepl } from "./tsrepl";
  import colors = require("colors/safe");
  export function main(originalArgs: readonly string[]): void {
  - const parser = new ArgumentParser({ description: "The CosmWasm REPL" });
  - parser.addArgument("--version", {
  - action: "storeTrue",
  - help: "Print version and exit",
  - });
  - parser.addArgument("--init", {
  - metavar: "FILEPATH",
  - help: "Read initial TypeScript code from file",
  - });
  -
  - const maintainerGroup = parser.addArgumentGroup({
  - title: "Maintainer options",
  - description: "Don't use those unless a maintainer tells you to.",
  - });
  - maintainerGroup.addArgument("--selftest", {
  - action: "storeTrue",
  - help: "Run a selftext and exit",
  - });
  - maintainerGroup.addArgument("--debug", {
  - action: "storeTrue",
  - help: "Enable debugging",
  - });
  - const args = parser.parseArgs([...originalArgs]);
  -
  - if (args.version) {
  - const version = require(join(__dirname, "..", "package.json")).version;
  - console.info(version);
  - return;
  - }
  + const args = yargs
  + .options({
  + // User options (we get --help and --version for free)
  + init: {
  + describe: "Read initial TypeScript code from file",
  + type: "string",
  + },
  + // Maintainer options
  + debug: {
  + describe: "Enable debugging",
  + type: "boolean",
  + },
  + selftest: {
  + describe: "Run a selftext and exit",
  + type: "boolean",
  + },
  + })
  + .group(["init", "help", "version"], "User options")
  + .group(["debug", "selftest"], "Maintainer options")
  + .parse(originalArgs);
  const imports = new Map<string, readonly string[]>([
  [
  