Acme.BookStore.HttpApi.Host/node_modules/yargs/lib/command.js

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const path = require('path')
const inspect = require('util').inspect
const camelCase = require('camelcase')

const DEFAULT_MARKER = '*'

// handles parsing positional arguments,
// and populating argv with said positional
// arguments.
module.exports = function (yargs, usage, validation) {
  const self = {}

  var handlers = {}
  var aliasMap = {}
  var defaultCommand
  self.addHandler = function (cmd, description, builder, handler) {
    var aliases = []
    if (Array.isArray(cmd)) {
      aliases = cmd.slice(1)
      cmd = cmd[0]
    } else if (typeof cmd === 'object') {
      var command = (Array.isArray(cmd.command) || typeof cmd.command === 'string') ? cmd.command : moduleName(cmd)
      if (cmd.aliases) command = [].concat(command).concat(cmd.aliases)
      self.addHandler(command, extractDesc(cmd), cmd.builder, cmd.handler)
      return
    }

    // allow a module to be provided instead of separate builder and handler
    if (typeof builder === 'object' && builder.builder && typeof builder.handler === 'function') {
      self.addHandler([cmd].concat(aliases), description, builder.builder, builder.handler)
      return
    }

    // parse positionals out of cmd string
    var parsedCommand = self.parseCommand(cmd)

    // remove positional args from aliases only
    aliases = aliases.map(function (alias) {
      return self.parseCommand(alias).cmd
    })

    // check for default and filter out '*''
    var isDefault = false
    var parsedAliases = [parsedCommand.cmd].concat(aliases).filter(function (c) {
      if (c === DEFAULT_MARKER) {
        isDefault = true
        return false
      }
      return true
    })

    // short-circuit if default with no aliases
    if (isDefault && parsedAliases.length === 0) {
      defaultCommand = {
        original: cmd.replace(DEFAULT_MARKER, '').trim(),
        handler: handler,
        builder: builder || {},
        demanded: parsedCommand.demanded,
        optional: parsedCommand.optional
      }