Clii

Build cli app by writing plain js functions. Invoke these functions from cli directly.

• Clii
  • Quick Start
  • Cli tool
  • License

Quick Start

1. Write some js code

/**
 * Another command
 * @param {Object} options
 * @param {number} options.num - Num variable
 * @param {("prod"|"dev"|"stage")} options.mode - Build mode
 * @param {string} message - Positional param
 */
export async function cmd2(options, message) {
}

2. Install clii package.

npm i clii
yarn add clii

3. Add follow content to your file.

import clii from "clii";

clii(import.meta.url);

All done.

clii automatically convert your file to cli app.

Try it in your terminal

$ node demo.mjs cmd2 -h
demo.mjs cmd2 <message> [options]

Another command

Positionals:
  message  Positional param                                  [string] [required]

Options:
      --port     Default port number                    [number] [default: 3000]
      --num      Num variable                                           [number]
      --mode     Build mode           [string] [choices: "prod", "dev", "stage"]

$ node demo.mjs cmd2 --num 3 --mode prod 'hello world'
{"options":{"num":3,"mode":"prod"},"message":"hello world"}

clii parse your ast js module file, generate cli interface according comments and exports semantics.

Export variable settings will be parsed as global options.

export const settings = {
  // Default port number
  port: 3000,
};

Options:
      --port     Default port number                    [number] [default: 3000]

Export function cmd2 will be parsed as subcommand. It's parameters will be parsed as subcommand's options.

Commands:
  demo.mjs cmd2 <message> [options]  Another command

The export default function will be th default command.

Cli tool

Usage: clii <cmd> [options]

Options:
      --version  Show version number                                   [boolean]
  -f, --file     Specific clii file                                     [string]
  -w, --workdir  Specific working directory                             [string]
  -h, --help     Show help                                             [boolean]

By defualt. clii looks for file cliifile.mjs in the current directory and upwards, so you can invoke it from any subdirectory of your project.

You can specify a file with option --file <path-to-script.mjs>.

The workdir will be the folder contains the mjs file. Use option ---workdir <path-to-dir> to change it.

Since clii can run js functions directly from cli, it can be used as task runner / build tool.

For examples, Write the following to the file cliifile.mjs.

import sh from "shelljs";

export function lint() {}

/**
 * @param {("prod"|"dev"|"stage")} mode
 */
export function build(mode) {
  lint();
  sh.exec(`tsc tsconfig.${mode}.json`);
}

clii lint
clii build

License

Apache-2.0