https://github.com/jaredly/minimist.re

A no-frills cli argument parser for reason
https://github.com/jaredly/minimist.re

Last synced: 23 days ago
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A no-frills cli argument parser for reason

• Host: GitHub
• URL: https://github.com/jaredly/minimist.re
• Owner: jaredly
• Created: 2018-01-12T16:14:07.000Z (almost 7 years ago)
• Default Branch: master
• Last Pushed: 2018-10-02T10:01:28.000Z (about 6 years ago)
• Last Synced: 2024-10-03T12:38:37.173Z (about 1 month ago)
• Language: OCaml
• Homepage:
• Size: 26.4 KB
• Stars: 34
• Watchers: 3
• Forks: 4
• Open Issues: 2
• Metadata Files:
  • Readme: Readme.md

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README

        
# Minimist.re

A no-frills cli argument parser for reason, inspired by [minimist](https://www.npmjs.com/package/minimist) and [yargs](https://www.npmjs.com/package/yargs).

## Example usage

(from [pack.re](https://www.npmjs.com/package/pack.re)):

```reason

let parse = Minimist.parse(~alias=[("h", "help")], ~presence=["help"], ~multi=["rename"], ~strings=["base"]);

let help = {|

# pack.re - a simple js bundler for reason

Usage: pack.re [options] entry-file.js > bundle.js

  --base (default: current directory)

      expected to contain node_modules

  --rename newName=realName (can be defined multiple times)

      maps `require("newName")` to a node_module called "realName"

  -h, --help

      print this help

|};

let fail = (msg) => {

  print_endline(msg);

  print_endline(help);

  exit(1);

};

let args = List.tl(Array.to_list(Sys.argv));

/* Some example args for you */

let args = ["--base", "awesome", "some-entry.js"];

switch (parse(args)) {

| Minimist.Error(err) => fail(Minimist.report(err))

| Ok(opts) =>

if (Minimist.StrSet.mem("help", opts.presence)) {

  print_endline(help); exit(0);

} else switch (opts.rest) {

  | [] => fail("Expected entry file as final argument")

  | [entry] => {

    let base = Minimist.get(opts.strings, "base");

    let renames = Minimist.multi(opts.multi, "rename");

    print_endline("All good!")

  }

  | _ => fail("Only one entry file allowed")

}

};

```