--- /dev/null
+var camelCase = require('camelcase')
+var path = require('path')
+var tokenizeArgString = require('./lib/tokenize-arg-string')
+var util = require('util')
+
+function parse (args, opts) {
+ if (!opts) opts = {}
+ // allow a string argument to be passed in rather
+ // than an argv array.
+ args = tokenizeArgString(args)
+ // aliases might have transitive relationships, normalize this.
+ var aliases = combineAliases(opts.alias || {})
+ var configuration = assign({
+ 'short-option-groups': true,
+ 'camel-case-expansion': true,
+ 'dot-notation': true,
+ 'parse-numbers': true,
+ 'boolean-negation': true,
+ 'negation-prefix': 'no-',
+ 'duplicate-arguments-array': true,
+ 'flatten-duplicate-arrays': true,
+ 'populate--': false,
+ 'combine-arrays': false
+ }, opts.configuration)
+ var defaults = opts.default || {}
+ var configObjects = opts.configObjects || []
+ var envPrefix = opts.envPrefix
+ var notFlagsOption = configuration['populate--']
+ var notFlagsArgv = notFlagsOption ? '--' : '_'
+ var newAliases = {}
+ // allow a i18n handler to be passed in, default to a fake one (util.format).
+ var __ = opts.__ || function (str) {
+ return util.format.apply(util, Array.prototype.slice.call(arguments))
+ }
+ var error = null
+ var flags = {
+ aliases: {},
+ arrays: {},
+ bools: {},
+ strings: {},
+ numbers: {},
+ counts: {},
+ normalize: {},
+ configs: {},
+ defaulted: {},
+ nargs: {},
+ coercions: {}
+ }
+ var negative = /^-[0-9]+(\.[0-9]+)?/
+ var negatedBoolean = new RegExp('^--' + configuration['negation-prefix'] + '(.+)')
+
+ ;[].concat(opts.array).filter(Boolean).forEach(function (key) {
+ flags.arrays[key] = true
+ })
+
+ ;[].concat(opts.boolean).filter(Boolean).forEach(function (key) {
+ flags.bools[key] = true
+ })
+
+ ;[].concat(opts.string).filter(Boolean).forEach(function (key) {
+ flags.strings[key] = true
+ })
+
+ ;[].concat(opts.number).filter(Boolean).forEach(function (key) {
+ flags.numbers[key] = true
+ })
+
+ ;[].concat(opts.count).filter(Boolean).forEach(function (key) {
+ flags.counts[key] = true
+ })
+
+ ;[].concat(opts.normalize).filter(Boolean).forEach(function (key) {
+ flags.normalize[key] = true
+ })
+
+ Object.keys(opts.narg || {}).forEach(function (k) {
+ flags.nargs[k] = opts.narg[k]
+ })
+
+ Object.keys(opts.coerce || {}).forEach(function (k) {
+ flags.coercions[k] = opts.coerce[k]
+ })
+
+ if (Array.isArray(opts.config) || typeof opts.config === 'string') {
+ ;[].concat(opts.config).filter(Boolean).forEach(function (key) {
+ flags.configs[key] = true
+ })
+ } else {
+ Object.keys(opts.config || {}).forEach(function (k) {
+ flags.configs[k] = opts.config[k]
+ })
+ }
+
+ // create a lookup table that takes into account all
+ // combinations of aliases: {f: ['foo'], foo: ['f']}
+ extendAliases(opts.key, aliases, opts.default, flags.arrays)
+
+ // apply default values to all aliases.
+ Object.keys(defaults).forEach(function (key) {
+ (flags.aliases[key] || []).forEach(function (alias) {
+ defaults[alias] = defaults[key]
+ })
+ })
+
+ var argv = { _: [] }
+
+ Object.keys(flags.bools).forEach(function (key) {
+ setArg(key, !(key in defaults) ? false : defaults[key])
+ setDefaulted(key)
+ })
+
+ var notFlags = []
+ if (args.indexOf('--') !== -1) {
+ notFlags = args.slice(args.indexOf('--') + 1)
+ args = args.slice(0, args.indexOf('--'))
+ }
+
+ for (var i = 0; i < args.length; i++) {
+ var arg = args[i]
+ var broken
+ var key
+ var letters
+ var m
+ var next
+ var value
+
+ // -- seperated by =
+ if (arg.match(/^--.+=/) || (
+ !configuration['short-option-groups'] && arg.match(/^-.+=/)
+ )) {
+ // Using [\s\S] instead of . because js doesn't support the
+ // 'dotall' regex modifier. See:
+ // http://stackoverflow.com/a/1068308/13216
+ m = arg.match(/^--?([^=]+)=([\s\S]*)$/)
+
+ // nargs format = '--f=monkey washing cat'
+ if (checkAllAliases(m[1], flags.nargs)) {
+ args.splice(i + 1, 0, m[2])
+ i = eatNargs(i, m[1], args)
+ // arrays format = '--f=a b c'
+ } else if (checkAllAliases(m[1], flags.arrays) && args.length > i + 1) {
+ args.splice(i + 1, 0, m[2])
+ i = eatArray(i, m[1], args)
+ } else {
+ setArg(m[1], m[2])
+ }
+ } else if (arg.match(negatedBoolean) && configuration['boolean-negation']) {
+ key = arg.match(negatedBoolean)[1]
+ setArg(key, false)
+
+ // -- seperated by space.
+ } else if (arg.match(/^--.+/) || (
+ !configuration['short-option-groups'] && arg.match(/^-.+/)
+ )) {
+ key = arg.match(/^--?(.+)/)[1]
+
+ // nargs format = '--foo a b c'
+ if (checkAllAliases(key, flags.nargs)) {
+ i = eatNargs(i, key, args)
+ // array format = '--foo a b c'
+ } else if (checkAllAliases(key, flags.arrays) && args.length > i + 1) {
+ i = eatArray(i, key, args)
+ } else {
+ next = args[i + 1]
+
+ if (next !== undefined && (!next.match(/^-/) ||
+ next.match(negative)) &&
+ !checkAllAliases(key, flags.bools) &&
+ !checkAllAliases(key, flags.counts)) {
+ setArg(key, next)
+ i++
+ } else if (/^(true|false)$/.test(next)) {
+ setArg(key, next)
+ i++
+ } else {
+ setArg(key, defaultForType(guessType(key, flags)))
+ }
+ }
+
+ // dot-notation flag seperated by '='.
+ } else if (arg.match(/^-.\..+=/)) {
+ m = arg.match(/^-([^=]+)=([\s\S]*)$/)
+ setArg(m[1], m[2])
+
+ // dot-notation flag seperated by space.
+ } else if (arg.match(/^-.\..+/)) {
+ next = args[i + 1]
+ key = arg.match(/^-(.\..+)/)[1]
+
+ if (next !== undefined && !next.match(/^-/) &&
+ !checkAllAliases(key, flags.bools) &&
+ !checkAllAliases(key, flags.counts)) {
+ setArg(key, next)
+ i++
+ } else {
+ setArg(key, defaultForType(guessType(key, flags)))
+ }
+ } else if (arg.match(/^-[^-]+/) && !arg.match(negative)) {
+ letters = arg.slice(1, -1).split('')
+ broken = false
+
+ for (var j = 0; j < letters.length; j++) {
+ next = arg.slice(j + 2)
+
+ if (letters[j + 1] && letters[j + 1] === '=') {
+ value = arg.slice(j + 3)
+ key = letters[j]
+
+ // nargs format = '-f=monkey washing cat'
+ if (checkAllAliases(key, flags.nargs)) {
+ args.splice(i + 1, 0, value)
+ i = eatNargs(i, key, args)
+ // array format = '-f=a b c'
+ } else if (checkAllAliases(key, flags.arrays) && args.length > i + 1) {
+ args.splice(i + 1, 0, value)
+ i = eatArray(i, key, args)
+ } else {
+ setArg(key, value)
+ }
+
+ broken = true
+ break
+ }
+
+ if (next === '-') {
+ setArg(letters[j], next)
+ continue
+ }
+
+ // current letter is an alphabetic character and next value is a number
+ if (/[A-Za-z]/.test(letters[j]) &&
+ /^-?\d+(\.\d*)?(e-?\d+)?$/.test(next)) {
+ setArg(letters[j], next)
+ broken = true
+ break
+ }
+
+ if (letters[j + 1] && letters[j + 1].match(/\W/)) {
+ setArg(letters[j], next)
+ broken = true
+ break
+ } else {
+ setArg(letters[j], defaultForType(guessType(letters[j], flags)))
+ }
+ }
+
+ key = arg.slice(-1)[0]
+
+ if (!broken && key !== '-') {
+ // nargs format = '-f a b c'
+ if (checkAllAliases(key, flags.nargs)) {
+ i = eatNargs(i, key, args)
+ // array format = '-f a b c'
+ } else if (checkAllAliases(key, flags.arrays) && args.length > i + 1) {
+ i = eatArray(i, key, args)
+ } else {
+ next = args[i + 1]
+
+ if (next !== undefined && (!/^(-|--)[^-]/.test(next) ||
+ next.match(negative)) &&
+ !checkAllAliases(key, flags.bools) &&
+ !checkAllAliases(key, flags.counts)) {
+ setArg(key, next)
+ i++
+ } else if (/^(true|false)$/.test(next)) {
+ setArg(key, next)
+ i++
+ } else {
+ setArg(key, defaultForType(guessType(key, flags)))
+ }
+ }
+ }
+ } else {
+ argv._.push(maybeCoerceNumber('_', arg))
+ }
+ }
+
+ // order of precedence:
+ // 1. command line arg
+ // 2. value from env var
+ // 3. value from config file
+ // 4. value from config objects
+ // 5. configured default value
+ applyEnvVars(argv, true) // special case: check env vars that point to config file
+ applyEnvVars(argv, false)
+ setConfig(argv)
+ setConfigObjects()
+ applyDefaultsAndAliases(argv, flags.aliases, defaults)
+ applyCoercions(argv)
+
+ // for any counts either not in args or without an explicit default, set to 0
+ Object.keys(flags.counts).forEach(function (key) {
+ if (!hasKey(argv, key.split('.'))) setArg(key, 0)
+ })
+
+ // '--' defaults to undefined.
+ if (notFlagsOption && notFlags.length) argv[notFlagsArgv] = []
+ notFlags.forEach(function (key) {
+ argv[notFlagsArgv].push(key)
+ })
+
+ // how many arguments should we consume, based
+ // on the nargs option?
+ function eatNargs (i, key, args) {
+ var ii
+ const toEat = checkAllAliases(key, flags.nargs)
+
+ // nargs will not consume flag arguments, e.g., -abc, --foo,
+ // and terminates when one is observed.
+ var available = 0
+ for (ii = i + 1; ii < args.length; ii++) {
+ if (!args[ii].match(/^-[^0-9]/)) available++
+ else break
+ }
+
+ if (available < toEat) error = Error(__('Not enough arguments following: %s', key))
+
+ const consumed = Math.min(available, toEat)
+ for (ii = i + 1; ii < (consumed + i + 1); ii++) {
+ setArg(key, args[ii])
+ }
+
+ return (i + consumed)
+ }
+
+ // if an option is an array, eat all non-hyphenated arguments
+ // following it... YUM!
+ // e.g., --foo apple banana cat becomes ["apple", "banana", "cat"]
+ function eatArray (i, key, args) {
+ var start = i + 1
+ var argsToSet = []
+ var multipleArrayFlag = i > 0
+ for (var ii = i + 1; ii < args.length; ii++) {
+ if (/^-/.test(args[ii]) && !negative.test(args[ii])) {
+ if (ii === start) {
+ setArg(key, defaultForType('array'))
+ }
+ multipleArrayFlag = true
+ break
+ }
+ i = ii
+ argsToSet.push(args[ii])
+ }
+ if (multipleArrayFlag) {
+ setArg(key, argsToSet.map(function (arg) {
+ return processValue(key, arg)
+ }))
+ } else {
+ argsToSet.forEach(function (arg) {
+ setArg(key, arg)
+ })
+ }
+
+ return i
+ }
+
+ function setArg (key, val) {
+ unsetDefaulted(key)
+
+ if (/-/.test(key) && configuration['camel-case-expansion']) {
+ addNewAlias(key, camelCase(key))
+ }
+
+ var value = processValue(key, val)
+
+ var splitKey = key.split('.')
+ setKey(argv, splitKey, value)
+
+ // handle populating aliases of the full key
+ if (flags.aliases[key]) {
+ flags.aliases[key].forEach(function (x) {
+ x = x.split('.')
+ setKey(argv, x, value)
+ })
+ }
+
+ // handle populating aliases of the first element of the dot-notation key
+ if (splitKey.length > 1 && configuration['dot-notation']) {
+ ;(flags.aliases[splitKey[0]] || []).forEach(function (x) {
+ x = x.split('.')
+
+ // expand alias with nested objects in key
+ var a = [].concat(splitKey)
+ a.shift() // nuke the old key.
+ x = x.concat(a)
+
+ setKey(argv, x, value)
+ })
+ }
+
+ // Set normalize getter and setter when key is in 'normalize' but isn't an array
+ if (checkAllAliases(key, flags.normalize) && !checkAllAliases(key, flags.arrays)) {
+ var keys = [key].concat(flags.aliases[key] || [])
+ keys.forEach(function (key) {
+ argv.__defineSetter__(key, function (v) {
+ val = path.normalize(v)
+ })
+
+ argv.__defineGetter__(key, function () {
+ return typeof val === 'string' ? path.normalize(val) : val
+ })
+ })
+ }
+ }
+
+ function addNewAlias (key, alias) {
+ if (!(flags.aliases[key] && flags.aliases[key].length)) {
+ flags.aliases[key] = [alias]
+ newAliases[alias] = true
+ }
+ if (!(flags.aliases[alias] && flags.aliases[alias].length)) {
+ addNewAlias(alias, key)
+ }
+ }
+
+ function processValue (key, val) {
+ // handle parsing boolean arguments --foo=true --bar false.
+ if (checkAllAliases(key, flags.bools) || checkAllAliases(key, flags.counts)) {
+ if (typeof val === 'string') val = val === 'true'
+ }
+
+ var value = maybeCoerceNumber(key, val)
+
+ // increment a count given as arg (either no value or value parsed as boolean)
+ if (checkAllAliases(key, flags.counts) && (isUndefined(value) || typeof value === 'boolean')) {
+ value = increment
+ }
+
+ // Set normalized value when key is in 'normalize' and in 'arrays'
+ if (checkAllAliases(key, flags.normalize) && checkAllAliases(key, flags.arrays)) {
+ if (Array.isArray(val)) value = val.map(path.normalize)
+ else value = path.normalize(val)
+ }
+ return value
+ }
+
+ function maybeCoerceNumber (key, value) {
+ if (!checkAllAliases(key, flags.strings) && !checkAllAliases(key, flags.coercions)) {
+ const shouldCoerceNumber = isNumber(value) && configuration['parse-numbers'] && (
+ Number.isSafeInteger(Math.floor(value))
+ )
+ if (shouldCoerceNumber || (!isUndefined(value) && checkAllAliases(key, flags.numbers))) value = Number(value)
+ }
+ return value
+ }
+
+ // set args from config.json file, this should be
+ // applied last so that defaults can be applied.
+ function setConfig (argv) {
+ var configLookup = {}
+
+ // expand defaults/aliases, in-case any happen to reference
+ // the config.json file.
+ applyDefaultsAndAliases(configLookup, flags.aliases, defaults)
+
+ Object.keys(flags.configs).forEach(function (configKey) {
+ var configPath = argv[configKey] || configLookup[configKey]
+ if (configPath) {
+ try {
+ var config = null
+ var resolvedConfigPath = path.resolve(process.cwd(), configPath)
+
+ if (typeof flags.configs[configKey] === 'function') {
+ try {
+ config = flags.configs[configKey](resolvedConfigPath)
+ } catch (e) {
+ config = e
+ }
+ if (config instanceof Error) {
+ error = config
+ return
+ }
+ } else {
+ config = require(resolvedConfigPath)
+ }
+
+ setConfigObject(config)
+ } catch (ex) {
+ if (argv[configKey]) error = Error(__('Invalid JSON config file: %s', configPath))
+ }
+ }
+ })
+ }
+
+ // set args from config object.
+ // it recursively checks nested objects.
+ function setConfigObject (config, prev) {
+ Object.keys(config).forEach(function (key) {
+ var value = config[key]
+ var fullKey = prev ? prev + '.' + key : key
+
+ // if the value is an inner object and we have dot-notation
+ // enabled, treat inner objects in config the same as
+ // heavily nested dot notations (foo.bar.apple).
+ if (typeof value === 'object' && value !== null && !Array.isArray(value) && configuration['dot-notation']) {
+ // if the value is an object but not an array, check nested object
+ setConfigObject(value, fullKey)
+ } else {
+ // setting arguments via CLI takes precedence over
+ // values within the config file.
+ if (!hasKey(argv, fullKey.split('.')) || (flags.defaulted[fullKey]) || (flags.arrays[fullKey] && configuration['combine-arrays'])) {
+ setArg(fullKey, value)
+ }
+ }
+ })
+ }
+
+ // set all config objects passed in opts
+ function setConfigObjects () {
+ if (typeof configObjects === 'undefined') return
+ configObjects.forEach(function (configObject) {
+ setConfigObject(configObject)
+ })
+ }
+
+ function applyEnvVars (argv, configOnly) {
+ if (typeof envPrefix === 'undefined') return
+
+ var prefix = typeof envPrefix === 'string' ? envPrefix : ''
+ Object.keys(process.env).forEach(function (envVar) {
+ if (prefix === '' || envVar.lastIndexOf(prefix, 0) === 0) {
+ // get array of nested keys and convert them to camel case
+ var keys = envVar.split('__').map(function (key, i) {
+ if (i === 0) {
+ key = key.substring(prefix.length)
+ }
+ return camelCase(key)
+ })
+
+ if (((configOnly && flags.configs[keys.join('.')]) || !configOnly) && (!hasKey(argv, keys) || flags.defaulted[keys.join('.')])) {
+ setArg(keys.join('.'), process.env[envVar])
+ }
+ }
+ })
+ }
+
+ function applyCoercions (argv) {
+ var coerce
+ var applied = {}
+ Object.keys(argv).forEach(function (key) {
+ if (!applied.hasOwnProperty(key)) { // If we haven't already coerced this option via one of its aliases
+ coerce = checkAllAliases(key, flags.coercions)
+ if (typeof coerce === 'function') {
+ try {
+ var value = coerce(argv[key])
+ ;([].concat(flags.aliases[key] || [], key)).forEach(ali => {
+ applied[ali] = argv[ali] = value
+ })
+ } catch (err) {
+ error = err
+ }
+ }
+ }
+ })
+ }
+
+ function applyDefaultsAndAliases (obj, aliases, defaults) {
+ Object.keys(defaults).forEach(function (key) {
+ if (!hasKey(obj, key.split('.'))) {
+ setKey(obj, key.split('.'), defaults[key])
+
+ ;(aliases[key] || []).forEach(function (x) {
+ if (hasKey(obj, x.split('.'))) return
+ setKey(obj, x.split('.'), defaults[key])
+ })
+ }
+ })
+ }
+
+ function hasKey (obj, keys) {
+ var o = obj
+
+ if (!configuration['dot-notation']) keys = [keys.join('.')]
+
+ keys.slice(0, -1).forEach(function (key) {
+ o = (o[key] || {})
+ })
+
+ var key = keys[keys.length - 1]
+
+ if (typeof o !== 'object') return false
+ else return key in o
+ }
+
+ function setKey (obj, keys, value) {
+ var o = obj
+
+ if (!configuration['dot-notation']) keys = [keys.join('.')]
+
+ keys.slice(0, -1).forEach(function (key, index) {
+ if (typeof o === 'object' && o[key] === undefined) {
+ o[key] = {}
+ }
+
+ if (typeof o[key] !== 'object' || Array.isArray(o[key])) {
+ // ensure that o[key] is an array, and that the last item is an empty object.
+ if (Array.isArray(o[key])) {
+ o[key].push({})
+ } else {
+ o[key] = [o[key], {}]
+ }
+
+ // we want to update the empty object at the end of the o[key] array, so set o to that object
+ o = o[key][o[key].length - 1]
+ } else {
+ o = o[key]
+ }
+ })
+
+ var key = keys[keys.length - 1]
+
+ var isTypeArray = checkAllAliases(keys.join('.'), flags.arrays)
+ var isValueArray = Array.isArray(value)
+ var duplicate = configuration['duplicate-arguments-array']
+
+ if (value === increment) {
+ o[key] = increment(o[key])
+ } else if (Array.isArray(o[key])) {
+ if (duplicate && isTypeArray && isValueArray) {
+ o[key] = configuration['flatten-duplicate-arrays'] ? o[key].concat(value) : [o[key]].concat([value])
+ } else if (!duplicate && Boolean(isTypeArray) === Boolean(isValueArray)) {
+ o[key] = value
+ } else {
+ o[key] = o[key].concat([value])
+ }
+ } else if (o[key] === undefined && isTypeArray) {
+ o[key] = isValueArray ? value : [value]
+ } else if (duplicate && !(o[key] === undefined || checkAllAliases(key, flags.bools) || checkAllAliases(keys.join('.'), flags.bools) || checkAllAliases(key, flags.counts))) {
+ o[key] = [ o[key], value ]
+ } else {
+ o[key] = value
+ }
+ }
+
+ // extend the aliases list with inferred aliases.
+ function extendAliases () {
+ Array.prototype.slice.call(arguments).forEach(function (obj) {
+ Object.keys(obj || {}).forEach(function (key) {
+ // short-circuit if we've already added a key
+ // to the aliases array, for example it might
+ // exist in both 'opts.default' and 'opts.key'.
+ if (flags.aliases[key]) return
+
+ flags.aliases[key] = [].concat(aliases[key] || [])
+ // For "--option-name", also set argv.optionName
+ flags.aliases[key].concat(key).forEach(function (x) {
+ if (/-/.test(x) && configuration['camel-case-expansion']) {
+ var c = camelCase(x)
+ if (c !== key && flags.aliases[key].indexOf(c) === -1) {
+ flags.aliases[key].push(c)
+ newAliases[c] = true
+ }
+ }
+ })
+ flags.aliases[key].forEach(function (x) {
+ flags.aliases[x] = [key].concat(flags.aliases[key].filter(function (y) {
+ return x !== y
+ }))
+ })
+ })
+ })
+ }
+
+ // check if a flag is set for any of a key's aliases.
+ function checkAllAliases (key, flag) {
+ var isSet = false
+ var toCheck = [].concat(flags.aliases[key] || [], key)
+
+ toCheck.forEach(function (key) {
+ if (flag[key]) isSet = flag[key]
+ })
+
+ return isSet
+ }
+
+ function setDefaulted (key) {
+ [].concat(flags.aliases[key] || [], key).forEach(function (k) {
+ flags.defaulted[k] = true
+ })
+ }
+
+ function unsetDefaulted (key) {
+ [].concat(flags.aliases[key] || [], key).forEach(function (k) {
+ delete flags.defaulted[k]
+ })
+ }
+
+ // return a default value, given the type of a flag.,
+ // e.g., key of type 'string' will default to '', rather than 'true'.
+ function defaultForType (type) {
+ var def = {
+ boolean: true,
+ string: '',
+ number: undefined,
+ array: []
+ }
+
+ return def[type]
+ }
+
+ // given a flag, enforce a default type.
+ function guessType (key, flags) {
+ var type = 'boolean'
+
+ if (checkAllAliases(key, flags.strings)) type = 'string'
+ else if (checkAllAliases(key, flags.numbers)) type = 'number'
+ else if (checkAllAliases(key, flags.arrays)) type = 'array'
+
+ return type
+ }
+
+ function isNumber (x) {
+ if (typeof x === 'number') return true
+ if (/^0x[0-9a-f]+$/i.test(x)) return true
+ return /^[-+]?(?:\d+(?:\.\d*)?|\.\d+)(e[-+]?\d+)?$/.test(x)
+ }
+
+ function isUndefined (num) {
+ return num === undefined
+ }
+
+ return {
+ argv: argv,
+ error: error,
+ aliases: flags.aliases,
+ newAliases: newAliases,
+ configuration: configuration
+ }
+}
+
+// if any aliases reference each other, we should
+// merge them together.
+function combineAliases (aliases) {
+ var aliasArrays = []
+ var change = true
+ var combined = {}
+
+ // turn alias lookup hash {key: ['alias1', 'alias2']} into
+ // a simple array ['key', 'alias1', 'alias2']
+ Object.keys(aliases).forEach(function (key) {
+ aliasArrays.push(
+ [].concat(aliases[key], key)
+ )
+ })
+
+ // combine arrays until zero changes are
+ // made in an iteration.
+ while (change) {
+ change = false
+ for (var i = 0; i < aliasArrays.length; i++) {
+ for (var ii = i + 1; ii < aliasArrays.length; ii++) {
+ var intersect = aliasArrays[i].filter(function (v) {
+ return aliasArrays[ii].indexOf(v) !== -1
+ })
+
+ if (intersect.length) {
+ aliasArrays[i] = aliasArrays[i].concat(aliasArrays[ii])
+ aliasArrays.splice(ii, 1)
+ change = true
+ break
+ }
+ }
+ }
+ }
+
+ // map arrays back to the hash-lookup (de-dupe while
+ // we're at it).
+ aliasArrays.forEach(function (aliasArray) {
+ aliasArray = aliasArray.filter(function (v, i, self) {
+ return self.indexOf(v) === i
+ })
+ combined[aliasArray.pop()] = aliasArray
+ })
+
+ return combined
+}
+
+function assign (defaults, configuration) {
+ var o = {}
+ configuration = configuration || {}
+
+ Object.keys(defaults).forEach(function (k) {
+ o[k] = defaults[k]
+ })
+ Object.keys(configuration).forEach(function (k) {
+ o[k] = configuration[k]
+ })
+
+ return o
+}
+
+// this function should only be called when a count is given as an arg
+// it is NOT called to set a default value
+// thus we can start the count at 1 instead of 0
+function increment (orig) {
+ return orig !== undefined ? orig + 1 : 1
+}
+
+function Parser (args, opts) {
+ var result = parse(args.slice(), opts)
+
+ return result.argv
+}
+
+// parse arguments and return detailed
+// meta information, aliases, etc.
+Parser.detailed = function (args, opts) {
+ return parse(args.slice(), opts)
+}
+
+module.exports = Parser
projects / dotfiles / .git / blobdiff