1128 lines
32 KiB
JavaScript
1128 lines
32 KiB
JavaScript
const argsert = require('./lib/argsert')
|
|
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')
|
|
const applyExtends = require('./lib/apply-extends')
|
|
const YError = require('./lib/yerror')
|
|
|
|
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.local = options.local ? options.local : []
|
|
tmpOptions.configObjects = options.configObjects ? options.configObjects : []
|
|
|
|
// if a key has been explicitly set as local,
|
|
// we should reset it before passing options to command.
|
|
var localLookup = {}
|
|
tmpOptions.local.forEach(function (l) {
|
|
localLookup[l] = true
|
|
;(aliases[l] || []).forEach(function (a) {
|
|
localLookup[a] = true
|
|
})
|
|
})
|
|
|
|
// preserve all groups not set to local.
|
|
preservedGroups = Object.keys(groups).reduce(function (acc, groupName) {
|
|
var keys = groups[groupName].filter(function (key) {
|
|
return !(key in localLookup)
|
|
})
|
|
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 !localLookup[k]
|
|
})
|
|
})
|
|
|
|
objectOptions.forEach(function (k) {
|
|
tmpOptions[k] = objFilter(options[k], function (k, v) {
|
|
return !localLookup[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(localLookup) : Usage(self, y18n)
|
|
validation = validation ? validation.reset(localLookup) : Validation(self, usage, y18n)
|
|
command = command ? command.reset() : Command(self, usage, validation)
|
|
if (!completion) completion = Completion(self, usage, command)
|
|
|
|
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 (keys) {
|
|
argsert('<array|string>', [keys], arguments.length)
|
|
populateParserHintArray('boolean', keys)
|
|
return self
|
|
}
|
|
|
|
self.array = function (keys) {
|
|
argsert('<array|string>', [keys], arguments.length)
|
|
populateParserHintArray('array', keys)
|
|
return self
|
|
}
|
|
|
|
self.number = function (keys) {
|
|
argsert('<array|string>', [keys], arguments.length)
|
|
populateParserHintArray('number', keys)
|
|
return self
|
|
}
|
|
|
|
self.normalize = function (keys) {
|
|
argsert('<array|string>', [keys], arguments.length)
|
|
populateParserHintArray('normalize', keys)
|
|
return self
|
|
}
|
|
|
|
self.count = function (keys) {
|
|
argsert('<array|string>', [keys], arguments.length)
|
|
populateParserHintArray('count', keys)
|
|
return self
|
|
}
|
|
|
|
self.string = function (keys) {
|
|
argsert('<array|string>', [keys], arguments.length)
|
|
populateParserHintArray('string', keys)
|
|
return self
|
|
}
|
|
|
|
self.requiresArg = function (keys) {
|
|
argsert('<array|string>', [keys], arguments.length)
|
|
populateParserHintArray('requiresArg', keys)
|
|
return self
|
|
}
|
|
|
|
self.skipValidation = function (keys) {
|
|
argsert('<array|string>', [keys], arguments.length)
|
|
populateParserHintArray('skipValidation', keys)
|
|
return self
|
|
}
|
|
|
|
function populateParserHintArray (type, keys, value) {
|
|
keys = [].concat(keys)
|
|
keys.forEach(function (key) {
|
|
options[type].push(key)
|
|
})
|
|
}
|
|
|
|
self.nargs = function (key, value) {
|
|
argsert('<string|object|array> [number]', [key, value], arguments.length)
|
|
populateParserHintObject(self.nargs, false, 'narg', key, value)
|
|
return self
|
|
}
|
|
|
|
self.choices = function (key, value) {
|
|
argsert('<object|string|array> [string|array]', [key, value], arguments.length)
|
|
populateParserHintObject(self.choices, true, 'choices', key, value)
|
|
return self
|
|
}
|
|
|
|
self.alias = function (key, value) {
|
|
argsert('<object|string|array> [string|array]', [key, value], arguments.length)
|
|
populateParserHintObject(self.alias, true, 'alias', key, value)
|
|
return self
|
|
}
|
|
|
|
// TODO: actually deprecate self.defaults.
|
|
self.default = self.defaults = function (key, value, defaultDescription) {
|
|
argsert('<object|string|array> [*] [string]', [key, value, defaultDescription], arguments.length)
|
|
if (defaultDescription) options.defaultDescription[key] = defaultDescription
|
|
if (typeof value === 'function') {
|
|
if (!options.defaultDescription[key]) options.defaultDescription[key] = usage.functionDescription(value)
|
|
value = value.call()
|
|
}
|
|
populateParserHintObject(self.default, false, 'default', key, value)
|
|
return self
|
|
}
|
|
|
|
self.describe = function (key, desc) {
|
|
argsert('<object|string|array> [string]', [key, desc], arguments.length)
|
|
populateParserHintObject(self.describe, false, 'key', key, true)
|
|
usage.describe(key, desc)
|
|
return self
|
|
}
|
|
|
|
self.demandOption = function (keys, msg) {
|
|
argsert('<object|string|array> [string]', [keys, msg], arguments.length)
|
|
populateParserHintObject(self.demandOption, false, 'demandedOptions', keys, msg)
|
|
return self
|
|
}
|
|
|
|
self.coerce = function (keys, value) {
|
|
argsert('<object|string|array> [function]', [keys, value], arguments.length)
|
|
populateParserHintObject(self.coerce, false, 'coerce', keys, value)
|
|
return self
|
|
}
|
|
|
|
function populateParserHintObject (builder, isArray, type, key, value) {
|
|
if (Array.isArray(key)) {
|
|
// an array of keys with one value ['x', 'y', 'z'], function parse () {}
|
|
var temp = {}
|
|
key.forEach(function (k) {
|
|
temp[k] = value
|
|
})
|
|
builder(temp)
|
|
} else if (typeof key === 'object') {
|
|
// an object of key value pairs: {'x': parse () {}, 'y': parse() {}}
|
|
Object.keys(key).forEach(function (k) {
|
|
builder(k, key[k])
|
|
})
|
|
} else {
|
|
// a single key value pair 'x', parse() {}
|
|
if (isArray) {
|
|
options[type][key] = (options[type][key] || []).concat(value)
|
|
} else {
|
|
options[type][key] = value
|
|
}
|
|
}
|
|
}
|
|
|
|
self.config = function (key, msg, parseFn) {
|
|
argsert('[object|string] [string|function] [function]', [key, msg, parseFn], arguments.length)
|
|
// allow a config object to be provided directly.
|
|
if (typeof key === 'object') {
|
|
key = applyExtends(key, cwd)
|
|
options.configObjects = (options.configObjects || []).concat(key)
|
|
return self
|
|
}
|
|
|
|
// allow for a custom 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) {
|
|
argsert('<string> [string]', [cmd, description], arguments.length)
|
|
usage.example(cmd, description)
|
|
return self
|
|
}
|
|
|
|
self.command = function (cmd, description, builder, handler) {
|
|
argsert('<string|array|object> [string|boolean] [function|object] [function]', [cmd, description, builder, handler], arguments.length)
|
|
command.addHandler(cmd, description, builder, handler)
|
|
return self
|
|
}
|
|
|
|
self.commandDir = function (dir, opts) {
|
|
argsert('<string> [object]', [dir, opts], arguments.length)
|
|
const req = parentRequire || require
|
|
command.addDirectory(dir, self.getContext(), req, require('get-caller-file')(), opts)
|
|
return self
|
|
}
|
|
|
|
// TODO: deprecate self.demand 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, 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.demandCommand = function (min, max, minMsg, maxMsg) {
|
|
argsert('[number] [number|string] [string|null] [string|null]', [min, max, minMsg, maxMsg], arguments.length)
|
|
|
|
if (typeof min === 'undefined') min = 1
|
|
|
|
if (typeof max !== 'number') {
|
|
minMsg = max
|
|
max = Infinity
|
|
}
|
|
|
|
self.global('_', false)
|
|
|
|
options.demandedCommands._ = {
|
|
min: min,
|
|
max: max,
|
|
minMsg: minMsg,
|
|
maxMsg: maxMsg
|
|
}
|
|
|
|
return self
|
|
}
|
|
|
|
self.getDemandedOptions = function () {
|
|
argsert([], 0)
|
|
return options.demandedOptions
|
|
}
|
|
|
|
self.getDemandedCommands = function () {
|
|
argsert([], 0)
|
|
return options.demandedCommands
|
|
}
|
|
|
|
self.implies = function (key, value) {
|
|
argsert('<string|object> [string]', [key, value], arguments.length)
|
|
validation.implies(key, value)
|
|
return self
|
|
}
|
|
|
|
self.conflicts = function (key1, key2) {
|
|
argsert('<string|object> [string]', [key1, key2], arguments.length)
|
|
validation.conflicts(key1, key2)
|
|
return self
|
|
}
|
|
|
|
self.usage = function (msg, opts) {
|
|
argsert('<string|null|object> [object]', [msg, opts], arguments.length)
|
|
|
|
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) {
|
|
argsert('<string>', [msg], arguments.length)
|
|
usage.epilog(msg)
|
|
return self
|
|
}
|
|
|
|
self.fail = function (f) {
|
|
argsert('<function>', [f], arguments.length)
|
|
usage.failFn(f)
|
|
return self
|
|
}
|
|
|
|
self.check = function (f, _global) {
|
|
argsert('<function> [boolean]', [f, _global], arguments.length)
|
|
validation.check(f, _global !== false)
|
|
return self
|
|
}
|
|
|
|
self.global = function (globals, global) {
|
|
argsert('<string|array> [boolean]', [globals, global], arguments.length)
|
|
globals = [].concat(globals)
|
|
if (global !== false) {
|
|
options.local = options.local.filter(function (l) {
|
|
return globals.indexOf(l) === -1
|
|
})
|
|
} else {
|
|
globals.forEach(function (g) {
|
|
if (options.local.indexOf(g) === -1) options.local.push(g)
|
|
})
|
|
}
|
|
return self
|
|
}
|
|
|
|
self.pkgConf = function (key, path) {
|
|
argsert('<string> [string]', [key, path], arguments.length)
|
|
var conf = null
|
|
// prefer cwd to require-main-filename in this method
|
|
// since we're looking for e.g. "nyc" config in nyc consumer
|
|
// rather than "yargs" config in nyc (where nyc is the main filename)
|
|
var obj = pkgUp(path || cwd)
|
|
|
|
// If an object exists in the key, add it to options.configObjects
|
|
if (obj[key] && typeof obj[key] === 'object') {
|
|
conf = applyExtends(obj[key], path || cwd)
|
|
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) {
|
|
argsert('<string|array> [function|boolean|object] [function]', [args, shortCircuit, _parseFn], arguments.length)
|
|
|
|
// 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 = self._parseArgs(args, shortCircuit)
|
|
if (parseFn) parseFn(exitError, parsed, output)
|
|
unfreeze()
|
|
|
|
return parsed
|
|
}
|
|
|
|
self._getParseContext = function () {
|
|
return parseContext || {}
|
|
}
|
|
|
|
self._hasParseCallback = function () {
|
|
return !!parseFn
|
|
}
|
|
|
|
self.option = self.options = function (key, opt) {
|
|
argsert('<string|object> [object]', [key, opt], arguments.length)
|
|
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
|
|
|
|
// deprecated, use 'demandOption' instead
|
|
if (demand) {
|
|
self.demand(key, demand)
|
|
}
|
|
|
|
if (opt.demandOption) {
|
|
self.demandOption(key, typeof opt.demandOption === 'string' ? opt.demandOption : undefined)
|
|
}
|
|
|
|
if ('config' in opt) {
|
|
self.config(key, opt.configParser)
|
|
}
|
|
|
|
if ('conflicts' in opt) {
|
|
self.conflicts(key, opt.conflicts)
|
|
}
|
|
|
|
if ('default' in opt) {
|
|
self.default(key, opt.default)
|
|
}
|
|
|
|
if ('implies' in opt) {
|
|
self.implies(key, opt.implies)
|
|
}
|
|
|
|
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.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 (typeof opt.global === 'boolean') {
|
|
self.global(key, opt.global)
|
|
}
|
|
|
|
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) {
|
|
argsert('<string|array> <string>', [opts, groupName], arguments.length)
|
|
var existing = preservedGroups[groupName] || groups[groupName]
|
|
if (preservedGroups[groupName]) {
|
|
// we now only need to track this group name in 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) {
|
|
argsert('[string|boolean]', [prefix], arguments.length)
|
|
if (prefix === false) options.envPrefix = undefined
|
|
else options.envPrefix = prefix || ''
|
|
return self
|
|
}
|
|
|
|
self.wrap = function (cols) {
|
|
argsert('<number|null>', [cols], arguments.length)
|
|
usage.wrap(cols)
|
|
return self
|
|
}
|
|
|
|
var strict = false
|
|
self.strict = function (enabled) {
|
|
argsert('[boolean]', [enabled], arguments.length)
|
|
strict = enabled !== false
|
|
return self
|
|
}
|
|
self.getStrict = function () {
|
|
return strict
|
|
}
|
|
|
|
self.showHelp = function (level) {
|
|
argsert('[string|function]', [level], arguments.length)
|
|
if (!self.parsed) self._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) {
|
|
argsert('[string|function] [string|function] [string]', [opt, msg, ver], arguments.length)
|
|
if (arguments.length === 0) {
|
|
ver = guessVersion()
|
|
opt = 'version'
|
|
} else if (arguments.length === 1) {
|
|
ver = opt
|
|
opt = 'version'
|
|
} else if (arguments.length === 2) {
|
|
ver = msg
|
|
msg = null
|
|
}
|
|
|
|
versionOpt = opt
|
|
msg = msg || usage.deferY18nLookup('Show version number')
|
|
|
|
usage.version(ver || undefined)
|
|
self.boolean(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) {
|
|
argsert('[string|boolean] [string|boolean] [boolean]', [opt, msg, addImplicitCmd], arguments.length)
|
|
|
|
// 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.describe(helpOpt, msg || usage.deferY18nLookup('Show help'))
|
|
return self
|
|
}
|
|
|
|
self.showHelpOnFail = function (enabled, message) {
|
|
argsert('[boolean|string] [string]', [enabled, message], arguments.length)
|
|
usage.showHelpOnFail(enabled, message)
|
|
return self
|
|
}
|
|
|
|
var exitProcess = true
|
|
self.exitProcess = function (enabled) {
|
|
argsert('[boolean]', [enabled], arguments.length)
|
|
if (typeof enabled !== 'boolean') {
|
|
enabled = true
|
|
}
|
|
exitProcess = enabled
|
|
return self
|
|
}
|
|
self.getExitProcess = function () {
|
|
return exitProcess
|
|
}
|
|
|
|
var completionCommand = null
|
|
self.completion = function (cmd, desc, fn) {
|
|
argsert('[string] [string|boolean|function] [function]', [cmd, desc, fn], arguments.length)
|
|
|
|
// 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) {
|
|
argsert('[string]', [$0], arguments.length)
|
|
$0 = $0 || self.$0
|
|
_logger.log(completion.generateCompletionScript($0))
|
|
return self
|
|
}
|
|
|
|
self.getCompletion = function (args, done) {
|
|
argsert('<array> <function>', [args, done], arguments.length)
|
|
completion.getCompletion(args, done)
|
|
}
|
|
|
|
self.locale = function (locale) {
|
|
argsert('[string]', [locale], arguments.length)
|
|
if (arguments.length === 0) {
|
|
guessLocale()
|
|
return y18n.getLocale()
|
|
}
|
|
detectLocale = false
|
|
y18n.setLocale(locale)
|
|
return self
|
|
}
|
|
|
|
self.updateStrings = self.updateLocale = function (obj) {
|
|
argsert('<object>', [obj], arguments.length)
|
|
detectLocale = false
|
|
y18n.updateLocale(obj)
|
|
return self
|
|
}
|
|
|
|
var detectLocale = true
|
|
self.detectLocale = function (detect) {
|
|
argsert('<boolean>', [detect], arguments.length)
|
|
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 () {
|
|
const args = []
|
|
for (var i = 0; i < arguments.length; i++) args.push(arguments[i])
|
|
if (!self._hasParseCallback()) console.log.apply(console, args)
|
|
hasOutput = true
|
|
if (output.length) output += '\n'
|
|
output += args.join(' ')
|
|
},
|
|
error: function () {
|
|
const args = []
|
|
for (var i = 0; i < arguments.length; i++) args.push(arguments[i])
|
|
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
|
|
}
|
|
|
|
self._setHasOutput = function () {
|
|
hasOutput = true
|
|
}
|
|
|
|
var recommendCommands
|
|
self.recommendCommands = function (recommend) {
|
|
argsert('[boolean]', [recommend], arguments.length)
|
|
recommendCommands = typeof recommend === 'boolean' ? recommend : true
|
|
return self
|
|
}
|
|
|
|
self.getUsageInstance = function () {
|
|
return usage
|
|
}
|
|
|
|
self.getValidationInstance = function () {
|
|
return validation
|
|
}
|
|
|
|
self.getCommandInstance = function () {
|
|
return command
|
|
}
|
|
|
|
self.terminalWidth = function () {
|
|
argsert([], 0)
|
|
return typeof process.stdout.columns !== 'undefined' ? process.stdout.columns : null
|
|
}
|
|
|
|
Object.defineProperty(self, 'argv', {
|
|
get: function () {
|
|
return self._parseArgs(processArgs)
|
|
},
|
|
enumerable: true
|
|
})
|
|
|
|
self._parseArgs = function (args, shortCircuit, _skipValidation, commandIndex) {
|
|
var skipValidation = !!_skipValidation
|
|
args = args || processArgs
|
|
|
|
options.__ = y18n.__
|
|
options.configuration = pkgUp()['yargs'] || {}
|
|
const parsed = Parser.detailed(args, options)
|
|
var argv = parsed.argv
|
|
if (parseContext) argv = assign(argv, parseContext)
|
|
var aliases = parsed.aliases
|
|
|
|
argv.$0 = self.$0
|
|
self.parsed = parsed
|
|
|
|
try {
|
|
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 = (commandIndex || 0), cmd; argv._[i] !== undefined; i++) {
|
|
cmd = String(argv._[i])
|
|
if (~handlerKeys.indexOf(cmd) && cmd !== completionCommand) {
|
|
setPlaceholderKeys(argv)
|
|
// commands are executed using a recursive algorithm that executes
|
|
// the deepest command first; we keep track of the position in the
|
|
// argv._ array that is currently being executed.
|
|
return command.runCommand(cmd, self, parsed, i + 1)
|
|
} else if (!firstUnknownCommand && cmd !== completionCommand) {
|
|
firstUnknownCommand = cmd
|
|
break
|
|
}
|
|
}
|
|
|
|
// run the default command, if defined
|
|
if (command.hasDefaultCommand() && !argv[helpOpt]) {
|
|
setPlaceholderKeys(argv)
|
|
return command.runCommand(null, self, parsed)
|
|
}
|
|
|
|
// recommend a command if recommendCommands() has
|
|
// been enabled, and no commands were found to execute
|
|
if (recommendCommands && firstUnknownCommand && !argv[helpOpt]) {
|
|
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)
|
|
}
|
|
} else if (command.hasDefaultCommand() && !argv[helpOpt]) {
|
|
setPlaceholderKeys(argv)
|
|
return command.runCommand(null, self, parsed)
|
|
}
|
|
|
|
// 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)
|
|
}
|
|
|
|
// Handle 'help' and 'version' options
|
|
// if we haven't already output help!
|
|
if (!hasOutput) {
|
|
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 new YError(parsed.error.message)
|
|
|
|
// if we're executed via bash completion, don't
|
|
// bother with validation.
|
|
if (!argv[completion.completionKey]) {
|
|
self._runValidation(argv, aliases, {}, parsed.error)
|
|
}
|
|
}
|
|
} catch (err) {
|
|
if (err instanceof YError) usage.fail(err.message, err)
|
|
else throw err
|
|
}
|
|
|
|
return setPlaceholderKeys(argv)
|
|
}
|
|
|
|
self._runValidation = function (argv, aliases, positionalMap, parseErrors) {
|
|
if (parseErrors) throw new YError(parseErrors.message)
|
|
validation.nonOptionCount(argv)
|
|
validation.missingArgumentValue(argv)
|
|
validation.requiredArguments(argv)
|
|
if (strict) validation.unknownArguments(argv, aliases, positionalMap)
|
|
validation.customChecks(argv, aliases)
|
|
validation.limitedChoices(argv)
|
|
validation.implications(argv)
|
|
validation.conflicting(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)
|
|
}
|