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yargs-factory.js
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Sun, Feb 16, 08:37

yargs-factory.js
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import { command as Command, } from './command.js';
import { assertNotStrictEqual, assertSingleKey, objectKeys, } from './typings/common-types.js';
import { YError } from './yerror.js';
import { usage as Usage } from './usage.js';
import { argsert } from './argsert.js';
import { completion as Completion, } from './completion.js';
import { validation as Validation, } from './validation.js';
import { objFilter } from './utils/obj-filter.js';
import { applyExtends } from './utils/apply-extends.js';
import { globalMiddlewareFactory, } from './middleware.js';
import { isPromise } from './utils/is-promise.js';
import setBlocking from './utils/set-blocking.js';
let shim;
export function YargsWithShim(_shim) {
shim = _shim;
return Yargs;
}
function Yargs(processArgs = [], cwd = shim.process.cwd(), parentRequire) {
const self = {};
let command;
let completion = null;
let groups = {};
const globalMiddleware = [];
let output = '';
const preservedGroups = {};
let usage;
let validation;
let handlerFinishCommand = null;
const y18n = shim.y18n;
self.middleware = globalMiddlewareFactory(globalMiddleware, self);
self.scriptName = function (scriptName) {
self.customScriptName = true;
self.$0 = scriptName;
return self;
};
let default$0;
if (/\b(node|iojs|electron)(\.exe)?$/.test(shim.process.argv()[0])) {
default$0 = shim.process.argv().slice(1, 2);
}
else {
default$0 = shim.process.argv().slice(0, 1);
}
self.$0 = default$0
.map(x => {
const b = rebase(cwd, x);
return x.match(/^(\/|([a-zA-Z]:)?\\)/) && b.length < x.length ? b : x;
})
.join(' ')
.trim();
if (shim.getEnv('_') && shim.getProcessArgvBin() === shim.getEnv('_')) {
self.$0 = shim
.getEnv('_')
.replace(`${shim.path.dirname(shim.process.execPath())}/`, '');
}
const context = { resets: -1, commands: [], fullCommands: [], files: [] };
self.getContext = () => context;
let hasOutput = false;
let exitError = null;
self.exit = (code, err) => {
hasOutput = true;
exitError = err;
if (exitProcess)
shim.process.exit(code);
};
let completionCommand = null;
self.completion = function (cmd, desc, fn) {
argsert('[string] [string|boolean|function] [function]', [cmd, desc, fn], arguments.length);
if (typeof desc === 'function') {
fn = desc;
desc = undefined;
}
completionCommand = cmd || completionCommand || 'completion';
if (!desc && desc !== false) {
desc = 'generate completion script';
}
self.command(completionCommand, desc);
if (fn)
completion.registerFunction(fn);
return self;
};
let options;
self.resetOptions = self.reset = function resetOptions(aliases = {}) {
context.resets++;
options = options || {};
const tmpOptions = {};
tmpOptions.local = options.local ? options.local : [];
tmpOptions.configObjects = options.configObjects
? options.configObjects
: [];
const localLookup = {};
tmpOptions.local.forEach(l => {
localLookup[l] = true;
(aliases[l] || []).forEach(a => {
localLookup[a] = true;
});
});
Object.assign(preservedGroups, Object.keys(groups).reduce((acc, groupName) => {
const keys = groups[groupName].filter(key => !(key in localLookup));
if (keys.length > 0) {
acc[groupName] = keys;
}
return acc;
}, {}));
groups = {};
const arrayOptions = [
'array',
'boolean',
'string',
'skipValidation',
'count',
'normalize',
'number',
'hiddenOptions',
];
const objectOptions = [
'narg',
'key',
'alias',
'default',
'defaultDescription',
'config',
'choices',
'demandedOptions',
'demandedCommands',
'coerce',
'deprecatedOptions',
];
arrayOptions.forEach(k => {
tmpOptions[k] = (options[k] || []).filter((k) => !localLookup[k]);
});
objectOptions.forEach((k) => {
tmpOptions[k] = objFilter(options[k], k => !localLookup[k]);
});
tmpOptions.envPrefix = options.envPrefix;
options = tmpOptions;
usage = usage ? usage.reset(localLookup) : Usage(self, y18n, shim);
validation = validation
? validation.reset(localLookup)
: Validation(self, usage, y18n, shim);
command = command
? command.reset()
: Command(self, usage, validation, globalMiddleware, shim);
if (!completion)
completion = Completion(self, usage, command, shim);
completionCommand = null;
output = '';
exitError = null;
hasOutput = false;
self.parsed = false;
return self;
};
self.resetOptions();
const frozens = [];
function freeze() {
frozens.push({
options,
configObjects: options.configObjects.slice(0),
exitProcess,
groups,
strict,
strictCommands,
strictOptions,
completionCommand,
output,
exitError,
hasOutput,
parsed: self.parsed,
parseFn,
parseContext,
handlerFinishCommand,
});
usage.freeze();
validation.freeze();
command.freeze();
}
function unfreeze() {
const frozen = frozens.pop();
assertNotStrictEqual(frozen, undefined, shim);
let configObjects;
({
options,
configObjects,
exitProcess,
groups,
output,
exitError,
hasOutput,
parsed: self.parsed,
strict,
strictCommands,
strictOptions,
completionCommand,
parseFn,
parseContext,
handlerFinishCommand,
} = frozen);
options.configObjects = configObjects;
usage.unfreeze();
validation.unfreeze();
command.unfreeze();
}
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|object> [number]', [keys], arguments.length);
if (typeof keys === 'string' && options.narg[keys]) {
return self;
}
else {
populateParserHintSingleValueDictionary(self.requiresArg, 'narg', keys, NaN);
}
return self;
};
self.skipValidation = function (keys) {
argsert('<array|string>', [keys], arguments.length);
populateParserHintArray('skipValidation', keys);
return self;
};
function populateParserHintArray(type, keys) {
keys = [].concat(keys);
keys.forEach(key => {
key = sanitizeKey(key);
options[type].push(key);
});
}
self.nargs = function (key, value) {
argsert('<string|object|array> [number]', [key, value], arguments.length);
populateParserHintSingleValueDictionary(self.nargs, 'narg', key, value);
return self;
};
self.choices = function (key, value) {
argsert('<object|string|array> [string|array]', [key, value], arguments.length);
populateParserHintArrayDictionary(self.choices, 'choices', key, value);
return self;
};
self.alias = function (key, value) {
argsert('<object|string|array> [string|array]', [key, value], arguments.length);
populateParserHintArrayDictionary(self.alias, 'alias', key, value);
return self;
};
self.default = self.defaults = function (key, value, defaultDescription) {
argsert('<object|string|array> [*] [string]', [key, value, defaultDescription], arguments.length);
if (defaultDescription) {
assertSingleKey(key, shim);
options.defaultDescription[key] = defaultDescription;
}
if (typeof value === 'function') {
assertSingleKey(key, shim);
if (!options.defaultDescription[key])
options.defaultDescription[key] = usage.functionDescription(value);
value = value.call();
}
populateParserHintSingleValueDictionary(self.default, 'default', key, value);
return self;
};
self.describe = function (key, desc) {
argsert('<object|string|array> [string]', [key, desc], arguments.length);
setKey(key, true);
usage.describe(key, desc);
return self;
};
function setKey(key, set) {
populateParserHintSingleValueDictionary(setKey, 'key', key, set);
return self;
}
function demandOption(keys, msg) {
argsert('<object|string|array> [string]', [keys, msg], arguments.length);
populateParserHintSingleValueDictionary(self.demandOption, 'demandedOptions', keys, msg);
return self;
}
self.demandOption = demandOption;
self.coerce = function (keys, value) {
argsert('<object|string|array> [function]', [keys, value], arguments.length);
populateParserHintSingleValueDictionary(self.coerce, 'coerce', keys, value);
return self;
};
function populateParserHintSingleValueDictionary(builder, type, key, value) {
populateParserHintDictionary(builder, type, key, value, (type, key, value) => {
options[type][key] = value;
});
}
function populateParserHintArrayDictionary(builder, type, key, value) {
populateParserHintDictionary(builder, type, key, value, (type, key, value) => {
options[type][key] = (options[type][key] || []).concat(value);
});
}
function populateParserHintDictionary(builder, type, key, value, singleKeyHandler) {
if (Array.isArray(key)) {
key.forEach(k => {
builder(k, value);
});
}
else if (((key) => typeof key === 'object')(key)) {
for (const k of objectKeys(key)) {
builder(k, key[k]);
}
}
else {
singleKeyHandler(type, sanitizeKey(key), value);
}
}
function sanitizeKey(key) {
if (key === '__proto__')
return '___proto___';
return key;
}
function deleteFromParserHintObject(optionKey) {
objectKeys(options).forEach((hintKey) => {
if (((key) => key === 'configObjects')(hintKey))
return;
const hint = options[hintKey];
if (Array.isArray(hint)) {
if (~hint.indexOf(optionKey))
hint.splice(hint.indexOf(optionKey), 1);
}
else if (typeof hint === 'object') {
delete hint[optionKey];
}
});
delete usage.getDescriptions()[optionKey];
}
self.config = function config(key = 'config', msg, parseFn) {
argsert('[object|string] [string|function] [function]', [key, msg, parseFn], arguments.length);
if (typeof key === 'object' && !Array.isArray(key)) {
key = applyExtends(key, cwd, self.getParserConfiguration()['deep-merge-config'] || false, shim);
options.configObjects = (options.configObjects || []).concat(key);
return self;
}
if (typeof msg === 'function') {
parseFn = msg;
msg = undefined;
}
self.describe(key, msg || usage.deferY18nLookup('Path to JSON config file'));
(Array.isArray(key) ? key : [key]).forEach(k => {
options.config[k] = parseFn || true;
});
return self;
};
self.example = function (cmd, description) {
argsert('<string|array> [string]', [cmd, description], arguments.length);
if (Array.isArray(cmd)) {
cmd.forEach(exampleParams => self.example(...exampleParams));
}
else {
usage.example(cmd, description);
}
return self;
};
self.command = function (cmd, description, builder, handler, middlewares, deprecated) {
argsert('<string|array|object> [string|boolean] [function|object] [function] [array] [boolean|string]', [cmd, description, builder, handler, middlewares, deprecated], arguments.length);
command.addHandler(cmd, description, builder, handler, middlewares, deprecated);
return self;
};
self.commandDir = function (dir, opts) {
argsert('<string> [object]', [dir, opts], arguments.length);
const req = parentRequire || shim.require;
command.addDirectory(dir, self.getContext(), req, shim.getCallerFile(), opts);
return self;
};
self.demand = self.required = self.require = function demand(keys, max, msg) {
if (Array.isArray(max)) {
max.forEach(key => {
assertNotStrictEqual(msg, true, shim);
demandOption(key, msg);
});
max = Infinity;
}
else if (typeof max !== 'number') {
msg = max;
max = Infinity;
}
if (typeof keys === 'number') {
assertNotStrictEqual(msg, true, shim);
self.demandCommand(keys, max, msg, msg);
}
else if (Array.isArray(keys)) {
keys.forEach(key => {
assertNotStrictEqual(msg, true, shim);
demandOption(key, msg);
});
}
else {
if (typeof msg === 'string') {
demandOption(keys, msg);
}
else if (msg === true || typeof msg === 'undefined') {
demandOption(keys);
}
}
return self;
};
self.demandCommand = function demandCommand(min = 1, max, minMsg, maxMsg) {
argsert('[number] [number|string] [string|null|undefined] [string|null|undefined]', [min, max, minMsg, maxMsg], arguments.length);
if (typeof max !== 'number') {
minMsg = max;
max = Infinity;
}
self.global('_', false);
options.demandedCommands._ = {
min,
max,
minMsg,
maxMsg,
};
return self;
};
self.getDemandedOptions = () => {
argsert([], 0);
return options.demandedOptions;
};
self.getDemandedCommands = () => {
argsert([], 0);
return options.demandedCommands;
};
self.deprecateOption = function deprecateOption(option, message) {
argsert('<string> [string|boolean]', [option, message], arguments.length);
options.deprecatedOptions[option] = message;
return self;
};
self.getDeprecatedOptions = () => {
argsert([], 0);
return options.deprecatedOptions;
};
self.implies = function (key, value) {
argsert('<string|object> [number|string|array]', [key, value], arguments.length);
validation.implies(key, value);
return self;
};
self.conflicts = function (key1, key2) {
argsert('<string|object> [string|array]', [key1, key2], arguments.length);
validation.conflicts(key1, key2);
return self;
};
self.usage = function (msg, description, builder, handler) {
argsert('<string|null|undefined> [string|boolean] [function|object] [function]', [msg, description, builder, handler], arguments.length);
if (description !== undefined) {
assertNotStrictEqual(msg, null, shim);
if ((msg || '').match(/^\$0( |$)/)) {
return self.command(msg, description, builder, handler);
}
else {
throw new YError('.usage() description must start with $0 if being used as alias for .command()');
}
}
else {
usage.usage(msg);
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.onFinishCommand = function (f) {
argsert('<function>', [f], arguments.length);
handlerFinishCommand = f;
return self;
};
self.getHandlerFinishCommand = () => handlerFinishCommand;
self.check = function (f, _global) {
argsert('<function> [boolean]', [f, _global], arguments.length);
validation.check(f, _global !== false);
return self;
};
self.global = function global(globals, global) {
argsert('<string|array> [boolean]', [globals, global], arguments.length);
globals = [].concat(globals);
if (global !== false) {
options.local = options.local.filter(l => globals.indexOf(l) === -1);
}
else {
globals.forEach(g => {
if (options.local.indexOf(g) === -1)
options.local.push(g);
});
}
return self;
};
self.pkgConf = function pkgConf(key, rootPath) {
argsert('<string> [string]', [key, rootPath], arguments.length);
let conf = null;
const obj = pkgUp(rootPath || cwd);
if (obj[key] && typeof obj[key] === 'object') {
conf = applyExtends(obj[key], rootPath || cwd, self.getParserConfiguration()['deep-merge-config'] || false, shim);
options.configObjects = (options.configObjects || []).concat(conf);
}
return self;
};
const pkgs = {};
function pkgUp(rootPath) {
const npath = rootPath || '*';
if (pkgs[npath])
return pkgs[npath];
let obj = {};
try {
let startDir = rootPath || shim.mainFilename;
if (!rootPath && shim.path.extname(startDir)) {
startDir = shim.path.dirname(startDir);
}
const pkgJsonPath = shim.findUp(startDir, (dir, names) => {
if (names.includes('package.json')) {
return 'package.json';
}
else {
return undefined;
}
});
assertNotStrictEqual(pkgJsonPath, undefined, shim);
obj = JSON.parse(shim.readFileSync(pkgJsonPath, 'utf8'));
}
catch (_noop) { }
pkgs[npath] = obj || {};
return pkgs[npath];
}
let parseFn = null;
let parseContext = null;
self.parse = function parse(args, shortCircuit, _parseFn) {
argsert('[string|array] [function|boolean|object] [function]', [args, shortCircuit, _parseFn], arguments.length);
freeze();
if (typeof args === 'undefined') {
const argv = self._parseArgs(processArgs);
const tmpParsed = self.parsed;
unfreeze();
self.parsed = tmpParsed;
return argv;
}
if (typeof shortCircuit === 'object') {
parseContext = shortCircuit;
shortCircuit = _parseFn;
}
if (typeof shortCircuit === 'function') {
parseFn = shortCircuit;
shortCircuit = false;
}
if (!shortCircuit)
processArgs = args;
if (parseFn)
exitProcess = false;
const parsed = self._parseArgs(args, !!shortCircuit);
completion.setParsed(self.parsed);
if (parseFn)
parseFn(exitError, parsed, output);
unfreeze();
return parsed;
};
self._getParseContext = () => parseContext || {};
self._hasParseCallback = () => !!parseFn;
self.option = self.options = function option(key, opt) {
argsert('<string|object> [object]', [key, opt], arguments.length);
if (typeof key === 'object') {
Object.keys(key).forEach(k => {
self.options(k, key[k]);
});
}
else {
if (typeof opt !== 'object') {
opt = {};
}
options.key[key] = true;
if (opt.alias)
self.alias(key, opt.alias);
const deprecate = opt.deprecate || opt.deprecated;
if (deprecate) {
self.deprecateOption(key, deprecate);
}
const demand = opt.demand || opt.required || opt.require;
if (demand) {
self.demand(key, demand);
}
if (opt.demandOption) {
self.demandOption(key, typeof opt.demandOption === 'string' ? opt.demandOption : undefined);
}
if (opt.conflicts) {
self.conflicts(key, opt.conflicts);
}
if ('default' in opt) {
self.default(key, opt.default);
}
if (opt.implies !== undefined) {
self.implies(key, opt.implies);
}
if (opt.nargs !== undefined) {
self.nargs(key, opt.nargs);
}
if (opt.config) {
self.config(key, opt.configParser);
}
if (opt.normalize) {
self.normalize(key);
}
if (opt.choices) {
self.choices(key, opt.choices);
}
if (opt.coerce) {
self.coerce(key, opt.coerce);
}
if (opt.group) {
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);
}
const desc = opt.describe || opt.description || opt.desc;
self.describe(key, desc);
if (opt.hidden) {
self.hide(key);
}
if (opt.requiresArg) {
self.requiresArg(key);
}
}
return self;
};
self.getOptions = () => options;
self.positional = function (key, opts) {
argsert('<string> <object>', [key, opts], arguments.length);
if (context.resets === 0) {
throw new YError(".positional() can only be called in a command's builder function");
}
const supportedOpts = [
'default',
'defaultDescription',
'implies',
'normalize',
'choices',
'conflicts',
'coerce',
'type',
'describe',
'desc',
'description',
'alias',
];
opts = objFilter(opts, (k, v) => {
let accept = supportedOpts.indexOf(k) !== -1;
if (k === 'type' && ['string', 'number', 'boolean'].indexOf(v) === -1)
accept = false;
return accept;
});
const fullCommand = context.fullCommands[context.fullCommands.length - 1];
const parseOptions = fullCommand
? command.cmdToParseOptions(fullCommand)
: {
array: [],
alias: {},
default: {},
demand: {},
};
objectKeys(parseOptions).forEach(pk => {
const parseOption = parseOptions[pk];
if (Array.isArray(parseOption)) {
if (parseOption.indexOf(key) !== -1)
opts[pk] = true;
}
else {
if (parseOption[key] && !(pk in opts))
opts[pk] = parseOption[key];
}
});
self.group(key, usage.getPositionalGroupName());
return self.option(key, opts);
};
self.group = function group(opts, groupName) {
argsert('<string|array> <string>', [opts, groupName], arguments.length);
const existing = preservedGroups[groupName] || groups[groupName];
if (preservedGroups[groupName]) {
delete preservedGroups[groupName];
}
const seen = {};
groups[groupName] = (existing || []).concat(opts).filter(key => {
if (seen[key])
return false;
return (seen[key] = true);
});
return self;
};
self.getGroups = () => Object.assign({}, groups, preservedGroups);
self.env = function (prefix) {
argsert('[string|boolean]', [prefix], arguments.length);
if (prefix === false)
delete options.envPrefix;
else
options.envPrefix = prefix || '';
return self;
};
self.wrap = function (cols) {
argsert('<number|null|undefined>', [cols], arguments.length);
usage.wrap(cols);
return self;
};
let strict = false;
self.strict = function (enabled) {
argsert('[boolean]', [enabled], arguments.length);
strict = enabled !== false;
return self;
};
self.getStrict = () => strict;
let strictCommands = false;
self.strictCommands = function (enabled) {
argsert('[boolean]', [enabled], arguments.length);
strictCommands = enabled !== false;
return self;
};
self.getStrictCommands = () => strictCommands;
let strictOptions = false;
self.strictOptions = function (enabled) {
argsert('[boolean]', [enabled], arguments.length);
strictOptions = enabled !== false;
return self;
};
self.getStrictOptions = () => strictOptions;
let parserConfig = {};
self.parserConfiguration = function parserConfiguration(config) {
argsert('<object>', [config], arguments.length);
parserConfig = config;
return self;
};
self.getParserConfiguration = () => parserConfig;
self.showHelp = function (level) {
argsert('[string|function]', [level], arguments.length);
if (!self.parsed)
self._parseArgs(processArgs);
if (command.hasDefaultCommand()) {
context.resets++;
command.runDefaultBuilderOn(self);
}
usage.showHelp(level);
return self;
};
let versionOpt = null;
self.version = function version(opt, msg, ver) {
const defaultVersionOpt = 'version';
argsert('[boolean|string] [string] [string]', [opt, msg, ver], arguments.length);
if (versionOpt) {
deleteFromParserHintObject(versionOpt);
usage.version(undefined);
versionOpt = null;
}
if (arguments.length === 0) {
ver = guessVersion();
opt = defaultVersionOpt;
}
else if (arguments.length === 1) {
if (opt === false) {
return self;
}
ver = opt;
opt = defaultVersionOpt;
}
else if (arguments.length === 2) {
ver = msg;
msg = undefined;
}
versionOpt = typeof opt === 'string' ? opt : defaultVersionOpt;
msg = msg || usage.deferY18nLookup('Show version number');
usage.version(ver || undefined);
self.boolean(versionOpt);
self.describe(versionOpt, msg);
return self;
};
function guessVersion() {
const obj = pkgUp();
return obj.version || 'unknown';
}
let helpOpt = null;
self.addHelpOpt = self.help = function addHelpOpt(opt, msg) {
const defaultHelpOpt = 'help';
argsert('[string|boolean] [string]', [opt, msg], arguments.length);
if (helpOpt) {
deleteFromParserHintObject(helpOpt);
helpOpt = null;
}
if (arguments.length === 1) {
if (opt === false)
return self;
}
helpOpt = typeof opt === 'string' ? opt : defaultHelpOpt;
self.boolean(helpOpt);
self.describe(helpOpt, msg || usage.deferY18nLookup('Show help'));
return self;
};
const defaultShowHiddenOpt = 'show-hidden';
options.showHiddenOpt = defaultShowHiddenOpt;
self.addShowHiddenOpt = self.showHidden = function addShowHiddenOpt(opt, msg) {
argsert('[string|boolean] [string]', [opt, msg], arguments.length);
if (arguments.length === 1) {
if (opt === false)
return self;
}
const showHiddenOpt = typeof opt === 'string' ? opt : defaultShowHiddenOpt;
self.boolean(showHiddenOpt);
self.describe(showHiddenOpt, msg || usage.deferY18nLookup('Show hidden options'));
options.showHiddenOpt = showHiddenOpt;
return self;
};
self.hide = function hide(key) {
argsert('<string>', [key], arguments.length);
options.hiddenOptions.push(key);
return self;
};
self.showHelpOnFail = function showHelpOnFail(enabled, message) {
argsert('[boolean|string] [string]', [enabled, message], arguments.length);
usage.showHelpOnFail(enabled, message);
return self;
};
let exitProcess = true;
self.exitProcess = function (enabled = true) {
argsert('[boolean]', [enabled], arguments.length);
exitProcess = enabled;
return self;
};
self.getExitProcess = () => exitProcess;
self.showCompletionScript = function ($0, cmd) {
argsert('[string] [string]', [$0, cmd], arguments.length);
$0 = $0 || self.$0;
_logger.log(completion.generateCompletionScript($0, cmd || completionCommand || 'completion'));
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 (!locale) {
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;
};
let detectLocale = true;
self.detectLocale = function (detect) {
argsert('<boolean>', [detect], arguments.length);
detectLocale = detect;
return self;
};
self.getDetectLocale = () => detectLocale;
const _logger = {
log(...args) {
if (!self._hasParseCallback())
console.log(...args);
hasOutput = true;
if (output.length)
output += '\n';
output += args.join(' ');
},
error(...args) {
if (!self._hasParseCallback())
console.error(...args);
hasOutput = true;
if (output.length)
output += '\n';
output += args.join(' ');
},
};
self._getLoggerInstance = () => _logger;
self._hasOutput = () => hasOutput;
self._setHasOutput = () => {
hasOutput = true;
};
let recommendCommands;
self.recommendCommands = function (recommend = true) {
argsert('[boolean]', [recommend], arguments.length);
recommendCommands = recommend;
return self;
};
self.getUsageInstance = () => usage;
self.getValidationInstance = () => validation;
self.getCommandInstance = () => command;
self.terminalWidth = () => {
argsert([], 0);
return shim.process.stdColumns;
};
Object.defineProperty(self, 'argv', {
get: () => self._parseArgs(processArgs),
enumerable: true,
});
self._parseArgs = function parseArgs(args, shortCircuit, _calledFromCommand, commandIndex) {
let skipValidation = !!_calledFromCommand;
args = args || processArgs;
options.__ = y18n.__;
options.configuration = self.getParserConfiguration();
const populateDoubleDash = !!options.configuration['populate--'];
const config = Object.assign({}, options.configuration, {
'populate--': true,
});
const parsed = shim.Parser.detailed(args, Object.assign({}, options, {
configuration: Object.assign({ 'parse-positional-numbers': false }, config),
}));
let argv = parsed.argv;
if (parseContext)
argv = Object.assign({}, argv, parseContext);
const aliases = parsed.aliases;
argv.$0 = self.$0;
self.parsed = parsed;
try {
guessLocale();
if (shortCircuit) {
return self._postProcess(argv, populateDoubleDash, _calledFromCommand);
}
if (helpOpt) {
const helpCmds = [helpOpt]
.concat(aliases[helpOpt] || [])
.filter(k => k.length > 1);
if (~helpCmds.indexOf('' + argv._[argv._.length - 1])) {
argv._.pop();
argv[helpOpt] = true;
}
}
const handlerKeys = command.getCommands();
const requestCompletions = completion.completionKey in argv;
const skipRecommendation = argv[helpOpt] || requestCompletions;
const skipDefaultCommand = skipRecommendation &&
(handlerKeys.length > 1 || handlerKeys[0] !== '$0');
if (argv._.length) {
if (handlerKeys.length) {
let firstUnknownCommand;
for (let i = commandIndex || 0, cmd; argv._[i] !== undefined; i++) {
cmd = String(argv._[i]);
if (~handlerKeys.indexOf(cmd) && cmd !== completionCommand) {
const innerArgv = command.runCommand(cmd, self, parsed, i + 1);
return self._postProcess(innerArgv, populateDoubleDash);
}
else if (!firstUnknownCommand && cmd !== completionCommand) {
firstUnknownCommand = cmd;
break;
}
}
if (command.hasDefaultCommand() && !skipDefaultCommand) {
const innerArgv = command.runCommand(null, self, parsed);
return self._postProcess(innerArgv, populateDoubleDash);
}
if (recommendCommands && firstUnknownCommand && !skipRecommendation) {
validation.recommendCommands(firstUnknownCommand, handlerKeys);
}
}
if (completionCommand &&
~argv._.indexOf(completionCommand) &&
!requestCompletions) {
if (exitProcess)
setBlocking(true);
self.showCompletionScript();
self.exit(0);
}
}
else if (command.hasDefaultCommand() && !skipDefaultCommand) {
const innerArgv = command.runCommand(null, self, parsed);
return self._postProcess(innerArgv, populateDoubleDash);
}
if (requestCompletions) {
if (exitProcess)
setBlocking(true);
args = [].concat(args);
const completionArgs = args.slice(args.indexOf(`--${completion.completionKey}`) + 1);
completion.getCompletion(completionArgs, completions => {
(completions || []).forEach(completion => {
_logger.log(completion);
});
self.exit(0);
});
return self._postProcess(argv, !populateDoubleDash, _calledFromCommand);
}
if (!hasOutput) {
Object.keys(argv).forEach(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);
}
});
}
if (!skipValidation && options.skipValidation.length > 0) {
skipValidation = Object.keys(argv).some(key => options.skipValidation.indexOf(key) >= 0 && argv[key] === true);
}
if (!skipValidation) {
if (parsed.error)
throw new YError(parsed.error.message);
if (!requestCompletions) {
self._runValidation(argv, aliases, {}, parsed.error);
}
}
}
catch (err) {
if (err instanceof YError)
usage.fail(err.message, err);
else
throw err;
}
return self._postProcess(argv, populateDoubleDash, _calledFromCommand);
};
self._postProcess = function (argv, populateDoubleDash, calledFromCommand = false) {
if (isPromise(argv))
return argv;
if (calledFromCommand)
return argv;
if (!populateDoubleDash) {
argv = self._copyDoubleDash(argv);
}
const parsePositionalNumbers = self.getParserConfiguration()['parse-positional-numbers'] ||
self.getParserConfiguration()['parse-positional-numbers'] === undefined;
if (parsePositionalNumbers) {
argv = self._parsePositionalNumbers(argv);
}
return argv;
};
self._copyDoubleDash = function (argv) {
if (!argv._ || !argv['--'])
return argv;
argv._.push.apply(argv._, argv['--']);
try {
delete argv['--'];
}
catch (_err) { }
return argv;
};
self._parsePositionalNumbers = function (argv) {
const args = argv['--'] ? argv['--'] : argv._;
for (let i = 0, arg; (arg = args[i]) !== undefined; i++) {
if (shim.Parser.looksLikeNumber(arg) &&
Number.isSafeInteger(Math.floor(parseFloat(`${arg}`)))) {
args[i] = Number(arg);
}
}
return argv;
};
self._runValidation = function runValidation(argv, aliases, positionalMap, parseErrors, isDefaultCommand = false) {
if (parseErrors)
throw new YError(parseErrors.message);
validation.nonOptionCount(argv);
validation.requiredArguments(argv);
let failedStrictCommands = false;
if (strictCommands) {
failedStrictCommands = validation.unknownCommands(argv);
}
if (strict && !failedStrictCommands) {
validation.unknownArguments(argv, aliases, positionalMap, isDefaultCommand);
}
else if (strictOptions) {
validation.unknownArguments(argv, aliases, {}, false, false);
}
validation.customChecks(argv, aliases);
validation.limitedChoices(argv);
validation.implications(argv);
validation.conflicting(argv);
};
function guessLocale() {
if (!detectLocale)
return;
const locale = shim.getEnv('LC_ALL') ||
shim.getEnv('LC_MESSAGES') ||
shim.getEnv('LANG') ||
shim.getEnv('LANGUAGE') ||
'en_US';
self.locale(locale.replace(/[.:].*/, ''));
}
self.help();
self.version();
return self;
}
export const rebase = (base, dir) => shim.path.relative(base, dir);
export function isYargsInstance(y) {
return !!y && typeof y._parseArgs === 'function';
}

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