xwcmd

Opinionated, Simple and Efficient CLI Builder. But more flexible style, happy to Use.

• Customize some style styles and outputs
• Just a few simple character definitions
• Support multi-level subcommands, theoretically can be unlimited subcommand nesting

Usage

Install:

npm install --save xwcmd

usage see test/cli.js

API

define(options)

Create the main Command. the options is a object, reference above example.

setConfig(options)

Set the global configuration of all commands.

options.args

Let me explain, for examples:

import { colors } from 'xwcmd'
...
 [`f,${colors.blue('...files')} <value_hint>`, 'This is a description for files flag' , []]

The first parameter is a flag and it's aliases (this example is -f,---files), the second is this flag's description, and the third is the default value (this example is []).

colors.blue() function from alexeyraspopov/picocolors, so you can use multicolor in your cli. Like highlighting some hints, or arg

<value_hint> is a hint for the value, define by <> parentheses. like description for the value.

The ... is a separator for the data type, ... means the value is an array. The type of arg is defined by prefacing it with a specific character，such as -,'!','...', default: string. - means number type. ! means boolean type. ... means array type.

The type is automatically converted for you, you can also specify the default value.

options.action

The action function is called when the command is executed.

options.name

The name of the command.

options.version

The version of the command.

Command's Method

sub(subCommandMeta, args, action)

Add a sub-command.

cmd.sub(
  ['i,in, install [pkg] <lodash, axios, react>'],
  [
    [`${colors.bgYellow('in')} | number`, `in's description`, 19],
    ['in2', `in2's description`, `in2's defaultValue`]
  ],
  (args, { pkg }) => {
    console.log(`install+++`, args, pkg);
  }
);

The first parameter subCommandMeta is an array of strings that describe the sub-command. like a item defined in args

The second parameter args is an array of flags and their options. it's the same as the args parameter in the define method.

The third parameter action is a function that is called when the sub-command is executed.

subCommandMeta

set(options: Settings)

Set this command configuration options.

default(args: DefaultArgs)

Default command parameters.

cmd.default(['...pkg!']);

call(name:string, argv: any[])

Invoke any registered subcommand.

 cmd.call('any_subcommand', ['default_arg_value', '--flag', 'flag_value'])

examples()

Display examples information

getMeta()

get command's meta information

help()

Display help information

run()

Finally we need to call it

TODO

• [x] more test
• [x] value hint.
• [x] globalSet?
• [ ] env?
• [ ] choices.
• [ ] remove row layout?.

any problem?

Issue or PR is welcome. ❤️

Acknowledgements

mrozio13pl/ofi

alexeyraspopov/picocolors