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-rw-r--r--node_modules/yargs/yargs.js1037
1 files changed, 1037 insertions, 0 deletions
diff --git a/node_modules/yargs/yargs.js b/node_modules/yargs/yargs.js
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+++ b/node_modules/yargs/yargs.js
@@ -0,0 +1,1037 @@
+const assign = require('./lib/assign')
+const Command = require('./lib/command')
+const Completion = require('./lib/completion')
+const Parser = require('yargs-parser')
+const path = require('path')
+const Usage = require('./lib/usage')
+const Validation = require('./lib/validation')
+const Y18n = require('y18n')
+const objFilter = require('./lib/obj-filter')
+const setBlocking = require('set-blocking')
+
+var exports = module.exports = Yargs
+function Yargs (processArgs, cwd, parentRequire) {
+ processArgs = processArgs || [] // handle calling yargs().
+
+ const self = {}
+ var command = null
+ var completion = null
+ var groups = {}
+ var output = ''
+ var preservedGroups = {}
+ var usage = null
+ var validation = null
+
+ const y18n = Y18n({
+ directory: path.resolve(__dirname, './locales'),
+ updateFiles: false
+ })
+
+ if (!cwd) cwd = process.cwd()
+
+ self.$0 = process.argv
+ .slice(0, 2)
+ .map(function (x, i) {
+ // ignore the node bin, specify this in your
+ // bin file with #!/usr/bin/env node
+ if (i === 0 && /\b(node|iojs)(\.exe)?$/.test(x)) return
+ var b = rebase(cwd, x)
+ return x.match(/^(\/|([a-zA-Z]:)?\\)/) && b.length < x.length ? b : x
+ })
+ .join(' ').trim()
+
+ if (process.env._ !== undefined && process.argv[1] === process.env._) {
+ self.$0 = process.env._.replace(
+ path.dirname(process.execPath) + '/', ''
+ )
+ }
+
+ // use context object to keep track of resets, subcommand execution, etc
+ // submodules should modify and check the state of context as necessary
+ const context = { resets: -1, commands: [], files: [] }
+ self.getContext = function () {
+ return context
+ }
+
+ // puts yargs back into an initial state. any keys
+ // that have been set to "global" will not be reset
+ // by this action.
+ var options
+ self.resetOptions = self.reset = function (aliases) {
+ context.resets++
+ aliases = aliases || {}
+ options = options || {}
+ // put yargs back into an initial state, this
+ // logic is used to build a nested command
+ // hierarchy.
+ var tmpOptions = {}
+ tmpOptions.global = options.global ? options.global : []
+ tmpOptions.configObjects = options.configObjects ? options.configObjects : []
+
+ // if a key has been set as a global, we
+ // do not want to reset it or its aliases.
+ var globalLookup = {}
+ tmpOptions.global.forEach(function (g) {
+ globalLookup[g] = true
+ ;(aliases[g] || []).forEach(function (a) {
+ globalLookup[a] = true
+ })
+ })
+
+ // preserve groups containing global keys
+ preservedGroups = Object.keys(groups).reduce(function (acc, groupName) {
+ var keys = groups[groupName].filter(function (key) {
+ return key in globalLookup
+ })
+ if (keys.length > 0) {
+ acc[groupName] = keys
+ }
+ return acc
+ }, {})
+ // groups can now be reset
+ groups = {}
+
+ var arrayOptions = [
+ 'array', 'boolean', 'string', 'requiresArg', 'skipValidation',
+ 'count', 'normalize', 'number'
+ ]
+
+ var objectOptions = [
+ 'narg', 'key', 'alias', 'default', 'defaultDescription',
+ 'config', 'choices', 'demandedOptions', 'demandedCommands', 'coerce'
+ ]
+
+ arrayOptions.forEach(function (k) {
+ tmpOptions[k] = (options[k] || []).filter(function (k) {
+ return globalLookup[k]
+ })
+ })
+
+ objectOptions.forEach(function (k) {
+ tmpOptions[k] = objFilter(options[k], function (k, v) {
+ return globalLookup[k]
+ })
+ })
+
+ tmpOptions.envPrefix = options.envPrefix
+ options = tmpOptions
+
+ // if this is the first time being executed, create
+ // instances of all our helpers -- otherwise just reset.
+ usage = usage ? usage.reset(globalLookup) : Usage(self, y18n)
+ validation = validation ? validation.reset(globalLookup) : Validation(self, usage, y18n)
+ command = command ? command.reset() : Command(self, usage, validation)
+ if (!completion) completion = Completion(self, usage, command)
+
+ strict = false
+ completionCommand = null
+ output = ''
+ exitError = null
+ hasOutput = false
+ self.parsed = false
+
+ return self
+ }
+ self.resetOptions()
+
+ // temporary hack: allow "freezing" of reset-able state for parse(msg, cb)
+ var frozen
+ function freeze () {
+ frozen = {}
+ frozen.options = options
+ frozen.configObjects = options.configObjects.slice(0)
+ frozen.exitProcess = exitProcess
+ frozen.groups = groups
+ usage.freeze()
+ validation.freeze()
+ command.freeze()
+ frozen.strict = strict
+ frozen.completionCommand = completionCommand
+ frozen.output = output
+ frozen.exitError = exitError
+ frozen.hasOutput = hasOutput
+ frozen.parsed = self.parsed
+ }
+ function unfreeze () {
+ options = frozen.options
+ options.configObjects = frozen.configObjects
+ exitProcess = frozen.exitProcess
+ groups = frozen.groups
+ output = frozen.output
+ exitError = frozen.exitError
+ hasOutput = frozen.hasOutput
+ self.parsed = frozen.parsed
+ usage.unfreeze()
+ validation.unfreeze()
+ command.unfreeze()
+ strict = frozen.strict
+ completionCommand = frozen.completionCommand
+ parseFn = null
+ parseContext = null
+ frozen = undefined
+ }
+
+ self.boolean = function (bools) {
+ options.boolean.push.apply(options.boolean, [].concat(bools))
+ return self
+ }
+
+ self.array = function (arrays) {
+ options.array.push.apply(options.array, [].concat(arrays))
+ return self
+ }
+
+ self.nargs = function (key, n) {
+ if (typeof key === 'object') {
+ Object.keys(key).forEach(function (k) {
+ self.nargs(k, key[k])
+ })
+ } else {
+ options.narg[key] = n
+ }
+ return self
+ }
+
+ self.number = function (numbers) {
+ options.number.push.apply(options.number, [].concat(numbers))
+ return self
+ }
+
+ self.choices = function (key, values) {
+ if (typeof key === 'object') {
+ Object.keys(key).forEach(function (k) {
+ self.choices(k, key[k])
+ })
+ } else {
+ options.choices[key] = (options.choices[key] || []).concat(values)
+ }
+ return self
+ }
+
+ self.normalize = function (strings) {
+ options.normalize.push.apply(options.normalize, [].concat(strings))
+ return self
+ }
+
+ self.config = function (key, msg, parseFn) {
+ // allow to pass a configuration object
+ if (typeof key === 'object') {
+ options.configObjects = (options.configObjects || []).concat(key)
+ return self
+ }
+
+ // allow to provide a parsing function
+ if (typeof msg === 'function') {
+ parseFn = msg
+ msg = null
+ }
+
+ key = key || 'config'
+ self.describe(key, msg || usage.deferY18nLookup('Path to JSON config file'))
+ ;(Array.isArray(key) ? key : [key]).forEach(function (k) {
+ options.config[k] = parseFn || true
+ })
+ return self
+ }
+
+ self.example = function (cmd, description) {
+ usage.example(cmd, description)
+ return self
+ }
+
+ self.command = function (cmd, description, builder, handler) {
+ command.addHandler(cmd, description, builder, handler)
+ return self
+ }
+
+ self.commandDir = function (dir, opts) {
+ const req = parentRequire || require
+ command.addDirectory(dir, self.getContext(), req, require('get-caller-file')(), opts)
+ return self
+ }
+
+ self.string = function (strings) {
+ options.string.push.apply(options.string, [].concat(strings))
+ return self
+ }
+
+ // The 'defaults' alias is deprecated. It will be removed in the next major version.
+ self.default = self.defaults = function (key, value, defaultDescription) {
+ if (typeof key === 'object') {
+ Object.keys(key).forEach(function (k) {
+ self.default(k, key[k])
+ })
+ } else {
+ if (defaultDescription) options.defaultDescription[key] = defaultDescription
+ if (typeof value === 'function') {
+ if (!options.defaultDescription[key]) options.defaultDescription[key] = usage.functionDescription(value)
+ value = value.call()
+ }
+ options.default[key] = value
+ }
+ return self
+ }
+
+ self.alias = function (x, y) {
+ if (typeof x === 'object') {
+ Object.keys(x).forEach(function (key) {
+ self.alias(key, x[key])
+ })
+ } else {
+ options.alias[x] = (options.alias[x] || []).concat(y)
+ }
+ return self
+ }
+
+ self.coerce = function (key, fn) {
+ if (typeof key === 'object' && !Array.isArray(key)) {
+ Object.keys(key).forEach(function (k) {
+ self.coerce(k, key[k])
+ })
+ } else {
+ [].concat(key).forEach(function (k) {
+ options.coerce[k] = fn
+ })
+ }
+ return self
+ }
+
+ self.count = function (counts) {
+ options.count.push.apply(options.count, [].concat(counts))
+ return self
+ }
+
+ // deprecated: the demand API is too overloaded, and is being
+ // deprecated in favor of .demandCommand() .demandOption().
+ self.demand = self.required = self.require = function (keys, max, msg) {
+ // you can optionally provide a 'max' key,
+ // which will raise an exception if too many '_'
+ // options are provided.
+ if (Array.isArray(max)) {
+ max.forEach(function (key) {
+ self.demandOption(key, msg)
+ })
+ max = Infinity
+ } else if (typeof max !== 'number') {
+ msg = max
+ max = Infinity
+ }
+
+ if (typeof keys === 'number') {
+ self.demandCommand(keys, max, msg)
+ } else if (Array.isArray(keys)) {
+ keys.forEach(function (key) {
+ self.demandOption(key, msg)
+ })
+ } else {
+ if (typeof msg === 'string') {
+ self.demandOption(keys, msg)
+ } else if (msg === true || typeof msg === 'undefined') {
+ self.demandOption(keys)
+ }
+ }
+
+ return self
+ }
+
+ self.demandOption = function (key, msg) {
+ if (Array.isArray(key)) {
+ key.forEach(function (key) {
+ self.demandOption(key, msg)
+ })
+ } else {
+ if (typeof msg === 'string') {
+ options.demandedOptions[key] = { msg: msg }
+ // allow edge-case of options: {a: {demand: true}, b: {demand: false}}
+ } else if (msg === true || typeof msg === 'undefined') {
+ options.demandedOptions[key] = { msg: undefined }
+ }
+ }
+
+ return self
+ }
+
+ self.demandCommand = function (min, max, minMsg, maxMsg) {
+ if (typeof max !== 'number') {
+ minMsg = max
+ max = Infinity
+ }
+
+ options.demandedCommands._ = {
+ min: min,
+ max: max,
+ minMsg: minMsg,
+ maxMsg: maxMsg
+ }
+
+ return self
+ }
+
+ self.getDemandedOptions = function () {
+ return options.demandedOptions
+ }
+
+ self.getDemandedCommands = function () {
+ return options.demandedCommands
+ }
+
+ self.requiresArg = function (requiresArgs) {
+ options.requiresArg.push.apply(options.requiresArg, [].concat(requiresArgs))
+ return self
+ }
+
+ self.skipValidation = function (skipValidations) {
+ options.skipValidation.push.apply(options.skipValidation, [].concat(skipValidations))
+ return self
+ }
+
+ self.implies = function (key, value) {
+ validation.implies(key, value)
+ return self
+ }
+
+ self.conflicts = function (key1, key2) {
+ validation.conflicts(key1, key2)
+ return self
+ }
+
+ self.usage = function (msg, opts) {
+ if (!opts && typeof msg === 'object') {
+ opts = msg
+ msg = null
+ }
+
+ usage.usage(msg)
+
+ if (opts) self.options(opts)
+
+ return self
+ }
+
+ self.epilogue = self.epilog = function (msg) {
+ usage.epilog(msg)
+ return self
+ }
+
+ self.fail = function (f) {
+ usage.failFn(f)
+ return self
+ }
+
+ self.check = function (f) {
+ validation.check(f)
+ return self
+ }
+
+ self.describe = function (key, desc) {
+ if (typeof key === 'object') {
+ Object.keys(key).forEach(function (k) {
+ options.key[k] = true
+ })
+ } else {
+ options.key[key] = true
+ }
+ usage.describe(key, desc)
+ return self
+ }
+
+ self.global = function (globals) {
+ options.global.push.apply(options.global, [].concat(globals))
+ return self
+ }
+
+ self.pkgConf = function (key, path) {
+ var conf = null
+
+ var obj = pkgUp(path)
+
+ // If an object exists in the key, add it to options.configObjects
+ if (obj[key] && typeof obj[key] === 'object') {
+ conf = obj[key]
+ options.configObjects = (options.configObjects || []).concat(conf)
+ }
+
+ return self
+ }
+
+ var pkgs = {}
+ function pkgUp (path) {
+ var npath = path || '*'
+ if (pkgs[npath]) return pkgs[npath]
+ const readPkgUp = require('read-pkg-up')
+
+ var obj = {}
+ try {
+ obj = readPkgUp.sync({
+ cwd: path || require('require-main-filename')(parentRequire || require),
+ normalize: false
+ })
+ } catch (noop) {}
+
+ pkgs[npath] = obj.pkg || {}
+ return pkgs[npath]
+ }
+
+ var parseFn = null
+ var parseContext = null
+ self.parse = function (args, shortCircuit, _parseFn) {
+ // a context object can optionally be provided, this allows
+ // additional information to be passed to a command handler.
+ if (typeof shortCircuit === 'object') {
+ parseContext = shortCircuit
+ shortCircuit = _parseFn
+ }
+
+ // by providing a function as a second argument to
+ // parse you can capture output that would otherwise
+ // default to printing to stdout/stderr.
+ if (typeof shortCircuit === 'function') {
+ parseFn = shortCircuit
+ shortCircuit = null
+ }
+ // completion short-circuits the parsing process,
+ // skipping validation, etc.
+ if (!shortCircuit) processArgs = args
+
+ freeze()
+ if (parseFn) exitProcess = false
+
+ var parsed = parseArgs(args, shortCircuit)
+ if (parseFn) parseFn(exitError, parsed, output)
+ unfreeze()
+
+ return parsed
+ }
+
+ self._hasParseCallback = function () {
+ return !!parseFn
+ }
+
+ self.option = self.options = function (key, opt) {
+ if (typeof key === 'object') {
+ Object.keys(key).forEach(function (k) {
+ self.options(k, key[k])
+ })
+ } else {
+ if (typeof opt !== 'object') {
+ opt = {}
+ }
+
+ options.key[key] = true // track manually set keys.
+
+ if (opt.alias) self.alias(key, opt.alias)
+
+ var demand = opt.demand || opt.required || opt.require
+
+ if (demand) {
+ self.demand(key, demand)
+ }
+
+ if ('demandOption' in opt) {
+ self.demandOption(key, opt.demandOption)
+ }
+
+ if ('config' in opt) {
+ self.config(key, opt.configParser)
+ }
+
+ if ('default' in opt) {
+ self.default(key, opt.default)
+ }
+
+ if ('nargs' in opt) {
+ self.nargs(key, opt.nargs)
+ }
+
+ if ('normalize' in opt) {
+ self.normalize(key)
+ }
+
+ if ('choices' in opt) {
+ self.choices(key, opt.choices)
+ }
+
+ if ('coerce' in opt) {
+ self.coerce(key, opt.coerce)
+ }
+
+ if ('group' in opt) {
+ self.group(key, opt.group)
+ }
+
+ if (opt.global) {
+ self.global(key)
+ }
+
+ if (opt.boolean || opt.type === 'boolean') {
+ self.boolean(key)
+ if (opt.alias) self.boolean(opt.alias)
+ }
+
+ if (opt.array || opt.type === 'array') {
+ self.array(key)
+ if (opt.alias) self.array(opt.alias)
+ }
+
+ if (opt.number || opt.type === 'number') {
+ self.number(key)
+ if (opt.alias) self.number(opt.alias)
+ }
+
+ if (opt.string || opt.type === 'string') {
+ self.string(key)
+ if (opt.alias) self.string(opt.alias)
+ }
+
+ if (opt.count || opt.type === 'count') {
+ self.count(key)
+ }
+
+ if (opt.defaultDescription) {
+ options.defaultDescription[key] = opt.defaultDescription
+ }
+
+ if (opt.skipValidation) {
+ self.skipValidation(key)
+ }
+
+ var desc = opt.describe || opt.description || opt.desc
+ if (desc) {
+ self.describe(key, desc)
+ }
+
+ if (opt.requiresArg) {
+ self.requiresArg(key)
+ }
+ }
+
+ return self
+ }
+ self.getOptions = function () {
+ return options
+ }
+
+ self.group = function (opts, groupName) {
+ var existing = preservedGroups[groupName] || groups[groupName]
+ if (preservedGroups[groupName]) {
+ // the preserved group will be moved to the set of explicitly declared
+ // groups
+ delete preservedGroups[groupName]
+ }
+
+ var seen = {}
+ groups[groupName] = (existing || []).concat(opts).filter(function (key) {
+ if (seen[key]) return false
+ return (seen[key] = true)
+ })
+ return self
+ }
+ self.getGroups = function () {
+ // combine explicit and preserved groups. explicit groups should be first
+ return assign(groups, preservedGroups)
+ }
+
+ // as long as options.envPrefix is not undefined,
+ // parser will apply env vars matching prefix to argv
+ self.env = function (prefix) {
+ if (prefix === false) options.envPrefix = undefined
+ else options.envPrefix = prefix || ''
+ return self
+ }
+
+ self.wrap = function (cols) {
+ usage.wrap(cols)
+ return self
+ }
+
+ var strict = false
+ self.strict = function () {
+ strict = true
+ return self
+ }
+ self.getStrict = function () {
+ return strict
+ }
+
+ self.showHelp = function (level) {
+ if (!self.parsed) parseArgs(processArgs) // run parser, if it has not already been executed.
+ usage.showHelp(level)
+ return self
+ }
+
+ var versionOpt = null
+ self.version = function (opt, msg, ver) {
+ if (arguments.length === 0) {
+ ver = guessVersion()
+ opt = 'version'
+ } else if (arguments.length === 1) {
+ ver = opt
+ opt = 'version'
+ } else if (arguments.length === 2) {
+ ver = msg
+ }
+
+ versionOpt = opt
+ msg = msg || usage.deferY18nLookup('Show version number')
+
+ usage.version(ver || undefined)
+ self.boolean(versionOpt)
+ self.global(versionOpt)
+ self.describe(versionOpt, msg)
+ return self
+ }
+
+ function guessVersion () {
+ var obj = pkgUp()
+
+ return obj.version || 'unknown'
+ }
+
+ var helpOpt = null
+ var useHelpOptAsCommand = false // a call to .help() will enable this
+ self.addHelpOpt = self.help = function (opt, msg, addImplicitCmd) {
+ // argument shuffle
+ if (arguments.length === 0) {
+ useHelpOptAsCommand = true
+ } else if (arguments.length === 1) {
+ if (typeof opt === 'boolean') {
+ useHelpOptAsCommand = opt
+ opt = null
+ } else {
+ useHelpOptAsCommand = true
+ }
+ } else if (arguments.length === 2) {
+ if (typeof msg === 'boolean') {
+ useHelpOptAsCommand = msg
+ msg = null
+ } else {
+ useHelpOptAsCommand = true
+ }
+ } else {
+ useHelpOptAsCommand = Boolean(addImplicitCmd)
+ }
+ // use arguments, fallback to defaults for opt and msg
+ helpOpt = opt || 'help'
+ self.boolean(helpOpt)
+ self.global(helpOpt)
+ self.describe(helpOpt, msg || usage.deferY18nLookup('Show help'))
+ return self
+ }
+
+ self.showHelpOnFail = function (enabled, message) {
+ usage.showHelpOnFail(enabled, message)
+ return self
+ }
+
+ var exitProcess = true
+ self.exitProcess = function (enabled) {
+ if (typeof enabled !== 'boolean') {
+ enabled = true
+ }
+ exitProcess = enabled
+ return self
+ }
+ self.getExitProcess = function () {
+ return exitProcess
+ }
+
+ var completionCommand = null
+ self.completion = function (cmd, desc, fn) {
+ // a function to execute when generating
+ // completions can be provided as the second
+ // or third argument to completion.
+ if (typeof desc === 'function') {
+ fn = desc
+ desc = null
+ }
+
+ // register the completion command.
+ completionCommand = cmd || 'completion'
+ if (!desc && desc !== false) {
+ desc = 'generate bash completion script'
+ }
+ self.command(completionCommand, desc)
+
+ // a function can be provided
+ if (fn) completion.registerFunction(fn)
+
+ return self
+ }
+
+ self.showCompletionScript = function ($0) {
+ $0 = $0 || self.$0
+ _logger.log(completion.generateCompletionScript($0))
+ return self
+ }
+
+ self.getCompletion = function (args, done) {
+ completion.getCompletion(args, done)
+ }
+
+ self.locale = function (locale) {
+ if (arguments.length === 0) {
+ guessLocale()
+ return y18n.getLocale()
+ }
+ detectLocale = false
+ y18n.setLocale(locale)
+ return self
+ }
+
+ self.updateStrings = self.updateLocale = function (obj) {
+ detectLocale = false
+ y18n.updateLocale(obj)
+ return self
+ }
+
+ var detectLocale = true
+ self.detectLocale = function (detect) {
+ detectLocale = detect
+ return self
+ }
+ self.getDetectLocale = function () {
+ return detectLocale
+ }
+
+ var hasOutput = false
+ var exitError = null
+ // maybe exit, always capture
+ // context about why we wanted to exit.
+ self.exit = function (code, err) {
+ hasOutput = true
+ exitError = err
+ if (exitProcess) process.exit(code)
+ }
+
+ // we use a custom logger that buffers output,
+ // so that we can print to non-CLIs, e.g., chat-bots.
+ var _logger = {
+ log: function () {
+ var args = Array.prototype.slice.call(arguments)
+ if (!self._hasParseCallback()) console.log.apply(console, args)
+ hasOutput = true
+ if (output.length) output += '\n'
+ output += args.join(' ')
+ },
+ error: function () {
+ var args = Array.prototype.slice.call(arguments)
+ if (!self._hasParseCallback()) console.error.apply(console, args)
+ hasOutput = true
+ if (output.length) output += '\n'
+ output += args.join(' ')
+ }
+ }
+ self._getLoggerInstance = function () {
+ return _logger
+ }
+ // has yargs output an error our help
+ // message in the current execution context.
+ self._hasOutput = function () {
+ return hasOutput
+ }
+
+ var recommendCommands
+ self.recommendCommands = function () {
+ recommendCommands = true
+ return self
+ }
+
+ self.getUsageInstance = function () {
+ return usage
+ }
+
+ self.getValidationInstance = function () {
+ return validation
+ }
+
+ self.getCommandInstance = function () {
+ return command
+ }
+
+ self.terminalWidth = function () {
+ return process.stdout.columns
+ }
+
+ Object.defineProperty(self, 'argv', {
+ get: function () {
+ var args = null
+
+ try {
+ args = parseArgs(processArgs)
+ } catch (err) {
+ usage.fail(err.message, err)
+ }
+
+ return args
+ },
+ enumerable: true
+ })
+
+ function parseArgs (args, shortCircuit) {
+ options.__ = y18n.__
+ options.configuration = pkgUp()['yargs'] || {}
+ const parsed = Parser.detailed(args, options)
+ var argv = parsed.argv
+ if (parseContext) argv = assign(parseContext, argv)
+ var aliases = parsed.aliases
+
+ argv.$0 = self.$0
+ self.parsed = parsed
+
+ guessLocale() // guess locale lazily, so that it can be turned off in chain.
+
+ // while building up the argv object, there
+ // are two passes through the parser. If completion
+ // is being performed short-circuit on the first pass.
+ if (shortCircuit) {
+ return argv
+ }
+
+ if (argv._.length) {
+ // check for helpOpt in argv._ before running commands
+ // assumes helpOpt must be valid if useHelpOptAsCommand is true
+ if (useHelpOptAsCommand) {
+ // consider any multi-char helpOpt alias as a valid help command
+ // unless all helpOpt aliases are single-char
+ // note that parsed.aliases is a normalized bidirectional map :)
+ var helpCmds = [helpOpt].concat(aliases[helpOpt])
+ var multiCharHelpCmds = helpCmds.filter(function (k) {
+ return k.length > 1
+ })
+ if (multiCharHelpCmds.length) helpCmds = multiCharHelpCmds
+ // look for and strip any helpCmds from argv._
+ argv._ = argv._.filter(function (cmd) {
+ if (~helpCmds.indexOf(cmd)) {
+ argv[helpOpt] = true
+ return false
+ }
+ return true
+ })
+ }
+
+ // if there's a handler associated with a
+ // command defer processing to it.
+ var handlerKeys = command.getCommands()
+ if (handlerKeys.length) {
+ var firstUnknownCommand
+ for (var i = 0, cmd; (cmd = argv._[i]) !== undefined; i++) {
+ if (~handlerKeys.indexOf(cmd) && cmd !== completionCommand) {
+ setPlaceholderKeys(argv)
+ return command.runCommand(cmd, self, parsed)
+ } else if (!firstUnknownCommand && cmd !== completionCommand) {
+ firstUnknownCommand = cmd
+ }
+ }
+
+ // recommend a command if recommendCommands() has
+ // been enabled, and no commands were found to execute
+ if (recommendCommands && firstUnknownCommand) {
+ validation.recommendCommands(firstUnknownCommand, handlerKeys)
+ }
+ }
+
+ // generate a completion script for adding to ~/.bashrc.
+ if (completionCommand && ~argv._.indexOf(completionCommand) && !argv[completion.completionKey]) {
+ if (exitProcess) setBlocking(true)
+ self.showCompletionScript()
+ self.exit(0)
+ }
+ }
+
+ // we must run completions first, a user might
+ // want to complete the --help or --version option.
+ if (completion.completionKey in argv) {
+ if (exitProcess) setBlocking(true)
+
+ // we allow for asynchronous completions,
+ // e.g., loading in a list of commands from an API.
+ var completionArgs = args.slice(args.indexOf('--' + completion.completionKey) + 1)
+ completion.getCompletion(completionArgs, function (completions) {
+ ;(completions || []).forEach(function (completion) {
+ _logger.log(completion)
+ })
+
+ self.exit(0)
+ })
+ return setPlaceholderKeys(argv)
+ }
+
+ var skipValidation = false
+
+ // Handle 'help' and 'version' options
+ Object.keys(argv).forEach(function (key) {
+ if (key === helpOpt && argv[key]) {
+ if (exitProcess) setBlocking(true)
+
+ skipValidation = true
+ self.showHelp('log')
+ self.exit(0)
+ } else if (key === versionOpt && argv[key]) {
+ if (exitProcess) setBlocking(true)
+
+ skipValidation = true
+ usage.showVersion()
+ self.exit(0)
+ }
+ })
+
+ // Check if any of the options to skip validation were provided
+ if (!skipValidation && options.skipValidation.length > 0) {
+ skipValidation = Object.keys(argv).some(function (key) {
+ return options.skipValidation.indexOf(key) >= 0 && argv[key] === true
+ })
+ }
+
+ // If the help or version options where used and exitProcess is false,
+ // or if explicitly skipped, we won't run validations
+ if (!skipValidation) {
+ if (parsed.error) throw parsed.error
+
+ // if we're executed via bash completion, don't
+ // bother with validation.
+ if (!argv[completion.completionKey]) {
+ validation.nonOptionCount(argv)
+ validation.missingArgumentValue(argv)
+ validation.requiredArguments(argv)
+ if (strict) validation.unknownArguments(argv, aliases)
+ validation.customChecks(argv, aliases)
+ validation.limitedChoices(argv)
+ validation.implications(argv)
+ validation.conflicting(argv)
+ }
+ }
+
+ return setPlaceholderKeys(argv)
+ }
+
+ function guessLocale () {
+ if (!detectLocale) return
+
+ try {
+ const osLocale = require('os-locale')
+ self.locale(osLocale.sync({ spawn: false }))
+ } catch (err) {
+ // if we explode looking up locale just noop
+ // we'll keep using the default language 'en'.
+ }
+ }
+
+ function setPlaceholderKeys (argv) {
+ Object.keys(options.key).forEach(function (key) {
+ // don't set placeholder keys for dot
+ // notation options 'foo.bar'.
+ if (~key.indexOf('.')) return
+ if (typeof argv[key] === 'undefined') argv[key] = undefined
+ })
+ return argv
+ }
+
+ return self
+}
+
+// rebase an absolute path to a relative one with respect to a base directory
+// exported for tests
+exports.rebase = rebase
+function rebase (base, dir) {
+ return path.relative(base, dir)
+}