mirror of
https://github.com/dawidd6/action-send-mail.git
synced 2024-11-10 05:51:07 +07:00
550 lines
16 KiB
JavaScript
550 lines
16 KiB
JavaScript
'use strict'
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// this file handles outputting usage instructions,
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// failures, etc. keeps logging in one place.
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const decamelize = require('decamelize')
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const stringWidth = require('string-width')
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const objFilter = require('./obj-filter')
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const path = require('path')
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const setBlocking = require('set-blocking')
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const YError = require('./yerror')
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module.exports = function usage (yargs, y18n) {
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const __ = y18n.__
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const self = {}
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// methods for ouputting/building failure message.
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const fails = []
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self.failFn = function failFn (f) {
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fails.push(f)
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}
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let failMessage = null
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let showHelpOnFail = true
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self.showHelpOnFail = function showHelpOnFailFn (enabled, message) {
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if (typeof enabled === 'string') {
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message = enabled
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enabled = true
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} else if (typeof enabled === 'undefined') {
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enabled = true
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}
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failMessage = message
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showHelpOnFail = enabled
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return self
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}
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let failureOutput = false
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self.fail = function fail (msg, err) {
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const logger = yargs._getLoggerInstance()
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if (fails.length) {
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for (let i = fails.length - 1; i >= 0; --i) {
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fails[i](msg, err, self)
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}
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} else {
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if (yargs.getExitProcess()) setBlocking(true)
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// don't output failure message more than once
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if (!failureOutput) {
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failureOutput = true
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if (showHelpOnFail) {
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yargs.showHelp('error')
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logger.error()
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}
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if (msg || err) logger.error(msg || err)
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if (failMessage) {
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if (msg || err) logger.error('')
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logger.error(failMessage)
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}
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}
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err = err || new YError(msg)
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if (yargs.getExitProcess()) {
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return yargs.exit(1)
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} else if (yargs._hasParseCallback()) {
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return yargs.exit(1, err)
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} else {
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throw err
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}
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}
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}
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// methods for ouputting/building help (usage) message.
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let usages = []
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let usageDisabled = false
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self.usage = (msg, description) => {
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if (msg === null) {
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usageDisabled = true
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usages = []
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return
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}
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usageDisabled = false
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usages.push([msg, description || ''])
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return self
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}
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self.getUsage = () => {
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return usages
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}
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self.getUsageDisabled = () => {
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return usageDisabled
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}
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self.getPositionalGroupName = () => {
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return __('Positionals:')
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}
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let examples = []
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self.example = (cmd, description) => {
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examples.push([cmd, description || ''])
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}
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let commands = []
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self.command = function command (cmd, description, isDefault, aliases) {
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// the last default wins, so cancel out any previously set default
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if (isDefault) {
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commands = commands.map((cmdArray) => {
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cmdArray[2] = false
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return cmdArray
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})
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}
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commands.push([cmd, description || '', isDefault, aliases])
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}
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self.getCommands = () => commands
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let descriptions = {}
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self.describe = function describe (key, desc) {
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if (typeof key === 'object') {
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Object.keys(key).forEach((k) => {
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self.describe(k, key[k])
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})
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} else {
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descriptions[key] = desc
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}
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}
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self.getDescriptions = () => descriptions
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let epilogs = []
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self.epilog = (msg) => {
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epilogs.push(msg)
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}
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let wrapSet = false
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let wrap
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self.wrap = (cols) => {
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wrapSet = true
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wrap = cols
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}
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function getWrap () {
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if (!wrapSet) {
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wrap = windowWidth()
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wrapSet = true
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}
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return wrap
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}
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const deferY18nLookupPrefix = '__yargsString__:'
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self.deferY18nLookup = str => deferY18nLookupPrefix + str
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const defaultGroup = 'Options:'
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self.help = function help () {
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if (cachedHelpMessage) return cachedHelpMessage
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normalizeAliases()
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// handle old demanded API
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const base$0 = yargs.customScriptName ? yargs.$0 : path.basename(yargs.$0)
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const demandedOptions = yargs.getDemandedOptions()
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const demandedCommands = yargs.getDemandedCommands()
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const groups = yargs.getGroups()
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const options = yargs.getOptions()
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let keys = []
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keys = keys.concat(Object.keys(descriptions))
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keys = keys.concat(Object.keys(demandedOptions))
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keys = keys.concat(Object.keys(demandedCommands))
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keys = keys.concat(Object.keys(options.default))
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keys = keys.filter(filterHiddenOptions)
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keys = Object.keys(keys.reduce((acc, key) => {
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if (key !== '_') acc[key] = true
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return acc
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}, {}))
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const theWrap = getWrap()
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const ui = require('cliui')({
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width: theWrap,
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wrap: !!theWrap
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})
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// the usage string.
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if (!usageDisabled) {
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if (usages.length) {
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// user-defined usage.
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usages.forEach((usage) => {
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ui.div(`${usage[0].replace(/\$0/g, base$0)}`)
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if (usage[1]) {
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ui.div({ text: `${usage[1]}`, padding: [1, 0, 0, 0] })
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}
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})
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ui.div()
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} else if (commands.length) {
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let u = null
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// demonstrate how commands are used.
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if (demandedCommands._) {
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u = `${base$0} <${__('command')}>\n`
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} else {
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u = `${base$0} [${__('command')}]\n`
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}
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ui.div(`${u}`)
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}
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}
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// your application's commands, i.e., non-option
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// arguments populated in '_'.
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if (commands.length) {
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ui.div(__('Commands:'))
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const context = yargs.getContext()
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const parentCommands = context.commands.length ? `${context.commands.join(' ')} ` : ''
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if (yargs.getParserConfiguration()['sort-commands'] === true) {
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commands = commands.sort((a, b) => a[0].localeCompare(b[0]))
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}
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commands.forEach((command) => {
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const commandString = `${base$0} ${parentCommands}${command[0].replace(/^\$0 ?/, '')}` // drop $0 from default commands.
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ui.span(
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{
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text: commandString,
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padding: [0, 2, 0, 2],
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width: maxWidth(commands, theWrap, `${base$0}${parentCommands}`) + 4
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},
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{ text: command[1] }
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)
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const hints = []
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if (command[2]) hints.push(`[${__('default:').slice(0, -1)}]`) // TODO hacking around i18n here
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if (command[3] && command[3].length) {
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hints.push(`[${__('aliases:')} ${command[3].join(', ')}]`)
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}
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if (hints.length) {
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ui.div({ text: hints.join(' '), padding: [0, 0, 0, 2], align: 'right' })
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} else {
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ui.div()
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}
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})
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ui.div()
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}
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// perform some cleanup on the keys array, making it
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// only include top-level keys not their aliases.
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const aliasKeys = (Object.keys(options.alias) || [])
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.concat(Object.keys(yargs.parsed.newAliases) || [])
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keys = keys.filter(key => !yargs.parsed.newAliases[key] && aliasKeys.every(alias => (options.alias[alias] || []).indexOf(key) === -1))
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// populate 'Options:' group with any keys that have not
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// explicitly had a group set.
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if (!groups[defaultGroup]) groups[defaultGroup] = []
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addUngroupedKeys(keys, options.alias, groups)
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// display 'Options:' table along with any custom tables:
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Object.keys(groups).forEach((groupName) => {
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if (!groups[groupName].length) return
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// if we've grouped the key 'f', but 'f' aliases 'foobar',
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// normalizedKeys should contain only 'foobar'.
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const normalizedKeys = groups[groupName].filter(filterHiddenOptions).map((key) => {
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if (~aliasKeys.indexOf(key)) return key
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for (let i = 0, aliasKey; (aliasKey = aliasKeys[i]) !== undefined; i++) {
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if (~(options.alias[aliasKey] || []).indexOf(key)) return aliasKey
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}
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return key
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})
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if (normalizedKeys.length < 1) return
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ui.div(__(groupName))
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// actually generate the switches string --foo, -f, --bar.
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const switches = normalizedKeys.reduce((acc, key) => {
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acc[key] = [ key ].concat(options.alias[key] || [])
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.map(sw => {
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// for the special positional group don't
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// add '--' or '-' prefix.
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if (groupName === self.getPositionalGroupName()) return sw
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else return (sw.length > 1 ? '--' : '-') + sw
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})
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.join(', ')
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return acc
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}, {})
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normalizedKeys.forEach((key) => {
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const kswitch = switches[key]
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let desc = descriptions[key] || ''
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let type = null
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if (~desc.lastIndexOf(deferY18nLookupPrefix)) desc = __(desc.substring(deferY18nLookupPrefix.length))
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if (~options.boolean.indexOf(key)) type = `[${__('boolean')}]`
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if (~options.count.indexOf(key)) type = `[${__('count')}]`
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if (~options.string.indexOf(key)) type = `[${__('string')}]`
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if (~options.normalize.indexOf(key)) type = `[${__('string')}]`
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if (~options.array.indexOf(key)) type = `[${__('array')}]`
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if (~options.number.indexOf(key)) type = `[${__('number')}]`
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const extra = [
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type,
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(key in demandedOptions) ? `[${__('required')}]` : null,
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options.choices && options.choices[key] ? `[${__('choices:')} ${
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self.stringifiedValues(options.choices[key])}]` : null,
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defaultString(options.default[key], options.defaultDescription[key])
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].filter(Boolean).join(' ')
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ui.span(
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{ text: kswitch, padding: [0, 2, 0, 2], width: maxWidth(switches, theWrap) + 4 },
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desc
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)
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if (extra) ui.div({ text: extra, padding: [0, 0, 0, 2], align: 'right' })
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else ui.div()
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})
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ui.div()
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})
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// describe some common use-cases for your application.
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if (examples.length) {
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ui.div(__('Examples:'))
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examples.forEach((example) => {
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example[0] = example[0].replace(/\$0/g, base$0)
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})
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examples.forEach((example) => {
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if (example[1] === '') {
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ui.div(
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{
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text: example[0],
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padding: [0, 2, 0, 2]
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}
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)
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} else {
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ui.div(
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{
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text: example[0],
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padding: [0, 2, 0, 2],
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width: maxWidth(examples, theWrap) + 4
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}, {
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text: example[1]
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}
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)
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}
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})
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ui.div()
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}
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// the usage string.
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if (epilogs.length > 0) {
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const e = epilogs.map(epilog => epilog.replace(/\$0/g, base$0)).join('\n')
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ui.div(`${e}\n`)
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}
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// Remove the trailing white spaces
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return ui.toString().replace(/\s*$/, '')
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}
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// return the maximum width of a string
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// in the left-hand column of a table.
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function maxWidth (table, theWrap, modifier) {
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let width = 0
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// table might be of the form [leftColumn],
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// or {key: leftColumn}
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if (!Array.isArray(table)) {
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table = Object.keys(table).map(key => [table[key]])
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}
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table.forEach((v) => {
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width = Math.max(
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stringWidth(modifier ? `${modifier} ${v[0]}` : v[0]),
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width
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)
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})
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// if we've enabled 'wrap' we should limit
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// the max-width of the left-column.
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if (theWrap) width = Math.min(width, parseInt(theWrap * 0.5, 10))
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return width
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}
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// make sure any options set for aliases,
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// are copied to the keys being aliased.
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function normalizeAliases () {
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// handle old demanded API
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const demandedOptions = yargs.getDemandedOptions()
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const options = yargs.getOptions()
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;(Object.keys(options.alias) || []).forEach((key) => {
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options.alias[key].forEach((alias) => {
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// copy descriptions.
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if (descriptions[alias]) self.describe(key, descriptions[alias])
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// copy demanded.
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if (alias in demandedOptions) yargs.demandOption(key, demandedOptions[alias])
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// type messages.
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if (~options.boolean.indexOf(alias)) yargs.boolean(key)
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if (~options.count.indexOf(alias)) yargs.count(key)
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if (~options.string.indexOf(alias)) yargs.string(key)
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if (~options.normalize.indexOf(alias)) yargs.normalize(key)
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if (~options.array.indexOf(alias)) yargs.array(key)
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if (~options.number.indexOf(alias)) yargs.number(key)
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})
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})
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}
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// if yargs is executing an async handler, we take a snapshot of the
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// help message to display on failure:
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let cachedHelpMessage
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self.cacheHelpMessage = function () {
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cachedHelpMessage = this.help()
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}
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// given a set of keys, place any keys that are
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// ungrouped under the 'Options:' grouping.
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function addUngroupedKeys (keys, aliases, groups) {
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let groupedKeys = []
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let toCheck = null
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Object.keys(groups).forEach((group) => {
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groupedKeys = groupedKeys.concat(groups[group])
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})
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keys.forEach((key) => {
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toCheck = [key].concat(aliases[key])
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if (!toCheck.some(k => groupedKeys.indexOf(k) !== -1)) {
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groups[defaultGroup].push(key)
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}
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})
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return groupedKeys
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}
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function filterHiddenOptions (key) {
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return yargs.getOptions().hiddenOptions.indexOf(key) < 0 || yargs.parsed.argv[yargs.getOptions().showHiddenOpt]
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}
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self.showHelp = (level) => {
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const logger = yargs._getLoggerInstance()
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if (!level) level = 'error'
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const emit = typeof level === 'function' ? level : logger[level]
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emit(self.help())
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}
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self.functionDescription = (fn) => {
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const description = fn.name ? decamelize(fn.name, '-') : __('generated-value')
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return ['(', description, ')'].join('')
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}
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self.stringifiedValues = function stringifiedValues (values, separator) {
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let string = ''
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const sep = separator || ', '
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const array = [].concat(values)
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if (!values || !array.length) return string
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array.forEach((value) => {
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if (string.length) string += sep
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string += JSON.stringify(value)
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})
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return string
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}
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// format the default-value-string displayed in
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// the right-hand column.
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function defaultString (value, defaultDescription) {
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let string = `[${__('default:')} `
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if (value === undefined && !defaultDescription) return null
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if (defaultDescription) {
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string += defaultDescription
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} else {
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switch (typeof value) {
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case 'string':
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string += `"${value}"`
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break
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case 'object':
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string += JSON.stringify(value)
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break
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default:
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string += value
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}
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}
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return `${string}]`
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}
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// guess the width of the console window, max-width 80.
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function windowWidth () {
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const maxWidth = 80
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if (typeof process === 'object' && process.stdout && process.stdout.columns) {
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return Math.min(maxWidth, process.stdout.columns)
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} else {
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return maxWidth
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}
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}
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// logic for displaying application version.
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let version = null
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self.version = (ver) => {
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version = ver
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}
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self.showVersion = () => {
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const logger = yargs._getLoggerInstance()
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logger.log(version)
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}
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self.reset = function reset (localLookup) {
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// do not reset wrap here
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// do not reset fails here
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failMessage = null
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failureOutput = false
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usages = []
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usageDisabled = false
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epilogs = []
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examples = []
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commands = []
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descriptions = objFilter(descriptions, (k, v) => !localLookup[k])
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return self
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}
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let frozens = []
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self.freeze = function freeze () {
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let frozen = {}
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frozens.push(frozen)
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frozen.failMessage = failMessage
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frozen.failureOutput = failureOutput
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frozen.usages = usages
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frozen.usageDisabled = usageDisabled
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frozen.epilogs = epilogs
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frozen.examples = examples
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frozen.commands = commands
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frozen.descriptions = descriptions
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}
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self.unfreeze = function unfreeze () {
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let frozen = frozens.pop()
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failMessage = frozen.failMessage
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failureOutput = frozen.failureOutput
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usages = frozen.usages
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usageDisabled = frozen.usageDisabled
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epilogs = frozen.epilogs
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examples = frozen.examples
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commands = frozen.commands
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descriptions = frozen.descriptions
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}
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|
|
|
return self
|
|
}
|