nodejs-argv v1.0.2

nodejs-argv

Simple command line parsing nodejs module.

Installation

$ npm install nodejs-agrv

Usage

e.g.

const nodejs_argv = require("../nodejs-argv");
const argv = nodejs_argv.new()
argv.option([
	["-u", "--url",      "str=",         "Destination address"],
	["-o", "--outdir",   "str",         "Save the directory"],
	["--limit",          "num=5",       "Concurrency limit"],
	["--types",          "[]",          "Limit file type"],
	["-r", "--restart",  "bool",        "Restart"],
	["-v", "--version",  "bool",        "Display version"],
	["-h", "--help",                    "Display help"]
])
try {
	argv.parse()
}catch (e) {
	console.log("Error:", e)
}
if (argv.get("-v")) {
	console.log("Version:", argv.version() )
}
if (argv.get("-h")) {
	console.log("Help:\n", argv.help() )
}
console.log("Argv Values:\n", argv.values() )

$ node test.js --help

$ node test.js -v

$ node test.js -u google.com --types png jpg gif -o ./download

e.g. Arguments is error!

$ node test.js --outdir ./download
$ node test.js --limit abc

Nodejs-argv Module Methods

• new(options, args)

  arguments options and args is optional

  Return a new nodejs-argv object

Nodejs-argv Object Methods

• option(options)

  Define options, argument like [shot name, long name, type=default value, description]

  e.g.

  argv.option([["-u", "--url", "str=", "Destination address"]])
  // —url :  limit type is string and can not be empty
  
  argv.option([["--limit", "num=5", "Concurrency limit"]])
  // --limit:  limit type is number and default value is 5
  
  argv.option([["--types", "[]", "Limit file type"]])
  // --types:  limit type is array

• parse(args)

  Parse command line arguments, args type is array. if not args, then parse process.argv

• get(name)

  Return command line arguments

• help()

  Return options description string

• values()

  Return all the arguments

• pipe(callback, timeout = 500)

  Receive stdin from the command line

  argv.pipe(function(value){
  	console.log("pipe value:\n", value)
  }, 1000)

  $ ls ./ | node test.js

  

• version()

  Return package.json.version in the require.main directory