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  • License MIT

Typed CLI argv parser and main function wrapper

Package Exports

  • clefairy
  • clefairy/dist/index.js

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (clefairy) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

clefairy

CLI creation helper

  • Parses and validates argv according to your specification (and gives you TypeScript types)
  • Calls your function, and, if an error occurs (via sync throw or Promise rejection):
    • Pretty-prints the error
    • Exits the process with status code 1

Usage Example

import { run, optionalBoolean, requiredString, optionalString } from "clefairy";

run(
  {
    someColor: optionalString,
    someName: requiredString,
    v: optionalBoolean,
  },
  async (options, ...args) => {
    console.log({ options, args });
  },
  {
    // If you don't pass anything here, it defaults to process.argv.slice(2)
    // But I pass something here for this example to make it clearer how the
    // input argv maps to the options in the function.
    argv: ["-v", "--some-name", "Jeff", "one", "two", "--", "--hi"],
  }
);

// This gets logged:
// {
//   options: { v: true, someName: 'Jeff' },
//   args: [ 'one', 'two', '--hi' ]
// }

License

MIT