--version arg

cli/package.json

@@ -3,18 +3,22 @@
  "version": "0.0.1",
  "license": "MIT",
  "bin": "dist/index.js",
+ "dependencies": {
+ "arg": "^5.0.2"
+ },
  "devDependencies": {
  "pkg": "^5.8.0"
  },
  "scripts": {
- "build": "esbuild src/index.ts --bundle --platform=node --outfile=dist/index.js --target=node18 --minify && pkg package.json",
- "start": "node dist/index.js ../generator/tryout/listenbox.kdl"
+ "esb": "esbuild src/index.ts --bundle --platform=node --outfile=dist/index.js --target=node18 --minify",
+ "build": "yarn esb && pkg package.json",
+ "start": "yarn esb && node dist/index.js"
  },
  "pkg": {
  "targets": [
  "node18-macos-arm64",
  "node18-macos-x64"
  ],
- "outputPath": "release/"
+ "outputPath": "dist/"
  }
 }

cli/src/index.ts

@@ -1,20 +1,30 @@
 import { toOpenApi } from "../../generator/src/openapi/to-open-api"
 import { kdlToCore } from "../../generator/src/dsl/kdl/kdl"
+import packageJson from "../package.json"
 import { readFile } from "fs/promises"
 import * as process from "process"
 import { parse } from "kdljs"
+import arg from "arg"
 
 const die = (s: string): never => {
  console.error(s)
  return process.exit(1)
 }
 
 const main = async () => {
- const file = process.argv[process.argv.length - 1]
- if (!file.endsWith(".kdl")) {
- return die(`expected .kdl file, got ${file}`)
+ const args = arg({
+ "--version": Boolean,
+ })
+
+ if (args["--version"]) {
+ console.log(packageJson.version)
+ return
  }
 
+ const file = args._[0]
+ if (!file) return die("Specify a .kdl file")
+ if (!file.endsWith(".kdl")) return die(`expected .kdl file, got ${file}`)
+
  const kdl = await readFile(file, "utf8")
  const doc = parse(kdl)
  if (!doc.output) {