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541 lines
20 KiB
541 lines
20 KiB
4 years ago
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.usage = void 0;
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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 common_types_1 = require("./common-types");
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const obj_filter_1 = require("./obj-filter");
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const path = require("path");
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const yerror_1 = require("./yerror");
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const decamelize = require("decamelize");
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const setBlocking = require("set-blocking");
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const stringWidth = require("string-width");
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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(arg1 = true, arg2) {
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function parseFunctionArgs() {
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return typeof arg1 === 'string' ? [true, arg1] : [arg1, arg2];
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}
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const [enabled, message] = parseFunctionArgs();
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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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}
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else {
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if (yargs.getExitProcess())
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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)
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logger.error(msg || err);
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if (failMessage) {
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if (msg || err)
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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_1.YError(msg);
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if (yargs.getExitProcess()) {
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return yargs.exit(1);
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}
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else if (yargs._hasParseCallback()) {
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return yargs.exit(1, err);
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}
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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 self;
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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, deprecated = false) {
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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, deprecated]);
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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(keyOrKeys, desc) {
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if (Array.isArray(keyOrKeys)) {
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keyOrKeys.forEach((k) => {
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self.describe(k, desc);
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});
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}
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else if (typeof keyOrKeys === 'object') {
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Object.keys(keyOrKeys).forEach((k) => {
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self.describe(k, keyOrKeys[k]);
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});
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}
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else {
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descriptions[keyOrKeys] = 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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self.help = function help() {
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if (cachedHelpMessage)
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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 deprecatedOptions = yargs.getDeprecatedOptions();
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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 !== '_')
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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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}
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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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}
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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 $0 from default commands.
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ui.span({
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text: commandString,
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padding: [0, 2, 0, 2],
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width: maxWidth(commands, theWrap, `${base$0}${parentCommands}`) + 4
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}, { text: command[1] });
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const hints = [];
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if (command[2])
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hints.push(`[${__('default')}]`);
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if (command[3] && command[3].length) {
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hints.push(`[${__('aliases:')} ${command[3].join(', ')}]`);
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}
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if (command[4]) {
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if (typeof command[4] === 'string') {
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hints.push(`[${__('deprecated: %s', command[4])}]`);
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}
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else {
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hints.push(`[${__('deprecated')}]`);
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}
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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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}
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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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const defaultGroup = __('Options:');
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if (!groups[defaultGroup])
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groups[defaultGroup] = [];
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addUngroupedKeys(keys, options.alias, groups, defaultGroup);
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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)
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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))
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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))
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return aliasKey;
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}
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return key;
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});
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if (normalizedKeys.length < 1)
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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())
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return sw;
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else {
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return (
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// matches yargs-parser logic in which single-digits
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// aliases declared with a boolean type are now valid
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/^[0-9]$/.test(sw)
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? ~options.boolean.indexOf(key) ? '-' : '--'
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: sw.length > 1 ? '--' : '-') + sw;
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}
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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))
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desc = __(desc.substring(deferY18nLookupPrefix.length));
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if (~options.boolean.indexOf(key))
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type = `[${__('boolean')}]`;
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if (~options.count.indexOf(key))
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type = `[${__('count')}]`;
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if (~options.string.indexOf(key))
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type = `[${__('string')}]`;
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if (~options.normalize.indexOf(key))
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type = `[${__('string')}]`;
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if (~options.array.indexOf(key))
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type = `[${__('array')}]`;
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if (~options.number.indexOf(key))
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type = `[${__('number')}]`;
|
||
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const deprecatedExtra = (deprecated) => typeof deprecated === 'string'
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||
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? `[${__('deprecated: %s', deprecated)}]`
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: `[${__('deprecated')}]`;
|
||
|
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const extra = [
|
||
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(key in deprecatedOptions) ? deprecatedExtra(deprecatedOptions[key]) : null,
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||
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type,
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(key in demandedOptions) ? `[${__('required')}]` : null,
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||
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options.choices && options.choices[key] ? `[${__('choices:')} ${self.stringifiedValues(options.choices[key])}]` : null,
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||
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defaultString(options.default[key], options.defaultDescription[key])
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||
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].filter(Boolean).join(' ');
|
||
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ui.span({ text: kswitch, padding: [0, 2, 0, 2], width: maxWidth(switches, theWrap) + 4 }, desc);
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||
|
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if (extra)
|
||
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ui.div({ text: extra, padding: [0, 0, 0, 2], align: 'right' });
|
||
|
|
else
|
||
|
|
ui.div();
|
||
|
|
});
|
||
|
|
ui.div();
|
||
|
|
});
|
||
|
|
// describe some common use-cases for your application.
|
||
|
|
if (examples.length) {
|
||
|
|
ui.div(__('Examples:'));
|
||
|
|
examples.forEach((example) => {
|
||
|
|
example[0] = example[0].replace(/\$0/g, base$0);
|
||
|
|
});
|
||
|
|
examples.forEach((example) => {
|
||
|
|
if (example[1] === '') {
|
||
|
|
ui.div({
|
||
|
|
text: example[0],
|
||
|
|
padding: [0, 2, 0, 2]
|
||
|
|
});
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
ui.div({
|
||
|
|
text: example[0],
|
||
|
|
padding: [0, 2, 0, 2],
|
||
|
|
width: maxWidth(examples, theWrap) + 4
|
||
|
|
}, {
|
||
|
|
text: example[1]
|
||
|
|
});
|
||
|
|
}
|
||
|
|
});
|
||
|
|
ui.div();
|
||
|
|
}
|
||
|
|
// the usage string.
|
||
|
|
if (epilogs.length > 0) {
|
||
|
|
const e = epilogs.map(epilog => epilog.replace(/\$0/g, base$0)).join('\n');
|
||
|
|
ui.div(`${e}\n`);
|
||
|
|
}
|
||
|
|
// Remove the trailing white spaces
|
||
|
|
return ui.toString().replace(/\s*$/, '');
|
||
|
|
};
|
||
|
|
// return the maximum width of a string
|
||
|
|
// in the left-hand column of a table.
|
||
|
|
function maxWidth(table, theWrap, modifier) {
|
||
|
|
let width = 0;
|
||
|
|
// table might be of the form [leftColumn],
|
||
|
|
// or {key: leftColumn}
|
||
|
|
if (!Array.isArray(table)) {
|
||
|
|
table = Object.values(table).map(v => [v]);
|
||
|
|
}
|
||
|
|
table.forEach((v) => {
|
||
|
|
width = Math.max(stringWidth(modifier ? `${modifier} ${v[0]}` : v[0]), width);
|
||
|
|
});
|
||
|
|
// if we've enabled 'wrap' we should limit
|
||
|
|
// the max-width of the left-column.
|
||
|
|
if (theWrap)
|
||
|
|
width = Math.min(width, parseInt((theWrap * 0.5).toString(), 10));
|
||
|
|
return width;
|
||
|
|
}
|
||
|
|
// make sure any options set for aliases,
|
||
|
|
// are copied to the keys being aliased.
|
||
|
|
function normalizeAliases() {
|
||
|
|
// handle old demanded API
|
||
|
|
const demandedOptions = yargs.getDemandedOptions();
|
||
|
|
const options = yargs.getOptions();
|
||
|
|
(Object.keys(options.alias) || []).forEach((key) => {
|
||
|
|
options.alias[key].forEach((alias) => {
|
||
|
|
// copy descriptions.
|
||
|
|
if (descriptions[alias])
|
||
|
|
self.describe(key, descriptions[alias]);
|
||
|
|
// copy demanded.
|
||
|
|
if (alias in demandedOptions)
|
||
|
|
yargs.demandOption(key, demandedOptions[alias]);
|
||
|
|
// type messages.
|
||
|
|
if (~options.boolean.indexOf(alias))
|
||
|
|
yargs.boolean(key);
|
||
|
|
if (~options.count.indexOf(alias))
|
||
|
|
yargs.count(key);
|
||
|
|
if (~options.string.indexOf(alias))
|
||
|
|
yargs.string(key);
|
||
|
|
if (~options.normalize.indexOf(alias))
|
||
|
|
yargs.normalize(key);
|
||
|
|
if (~options.array.indexOf(alias))
|
||
|
|
yargs.array(key);
|
||
|
|
if (~options.number.indexOf(alias))
|
||
|
|
yargs.number(key);
|
||
|
|
});
|
||
|
|
});
|
||
|
|
}
|
||
|
|
// if yargs is executing an async handler, we take a snapshot of the
|
||
|
|
// help message to display on failure:
|
||
|
|
let cachedHelpMessage;
|
||
|
|
self.cacheHelpMessage = function () {
|
||
|
|
cachedHelpMessage = this.help();
|
||
|
|
};
|
||
|
|
// however this snapshot must be cleared afterwards
|
||
|
|
// not to be be used by next calls to parse
|
||
|
|
self.clearCachedHelpMessage = function () {
|
||
|
|
cachedHelpMessage = undefined;
|
||
|
|
};
|
||
|
|
// given a set of keys, place any keys that are
|
||
|
|
// ungrouped under the 'Options:' grouping.
|
||
|
|
function addUngroupedKeys(keys, aliases, groups, defaultGroup) {
|
||
|
|
let groupedKeys = [];
|
||
|
|
let toCheck = null;
|
||
|
|
Object.keys(groups).forEach((group) => {
|
||
|
|
groupedKeys = groupedKeys.concat(groups[group]);
|
||
|
|
});
|
||
|
|
keys.forEach((key) => {
|
||
|
|
toCheck = [key].concat(aliases[key]);
|
||
|
|
if (!toCheck.some(k => groupedKeys.indexOf(k) !== -1)) {
|
||
|
|
groups[defaultGroup].push(key);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
return groupedKeys;
|
||
|
|
}
|
||
|
|
function filterHiddenOptions(key) {
|
||
|
|
return yargs.getOptions().hiddenOptions.indexOf(key) < 0 || yargs.parsed.argv[yargs.getOptions().showHiddenOpt];
|
||
|
|
}
|
||
|
|
self.showHelp = (level) => {
|
||
|
|
const logger = yargs._getLoggerInstance();
|
||
|
|
if (!level)
|
||
|
|
level = 'error';
|
||
|
|
const emit = typeof level === 'function' ? level : logger[level];
|
||
|
|
emit(self.help());
|
||
|
|
};
|
||
|
|
self.functionDescription = (fn) => {
|
||
|
|
const description = fn.name ? decamelize(fn.name, '-') : __('generated-value');
|
||
|
|
return ['(', description, ')'].join('');
|
||
|
|
};
|
||
|
|
self.stringifiedValues = function stringifiedValues(values, separator) {
|
||
|
|
let string = '';
|
||
|
|
const sep = separator || ', ';
|
||
|
|
const array = [].concat(values);
|
||
|
|
if (!values || !array.length)
|
||
|
|
return string;
|
||
|
|
array.forEach((value) => {
|
||
|
|
if (string.length)
|
||
|
|
string += sep;
|
||
|
|
string += JSON.stringify(value);
|
||
|
|
});
|
||
|
|
return string;
|
||
|
|
};
|
||
|
|
// format the default-value-string displayed in
|
||
|
|
// the right-hand column.
|
||
|
|
function defaultString(value, defaultDescription) {
|
||
|
|
let string = `[${__('default:')} `;
|
||
|
|
if (value === undefined && !defaultDescription)
|
||
|
|
return null;
|
||
|
|
if (defaultDescription) {
|
||
|
|
string += defaultDescription;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
switch (typeof value) {
|
||
|
|
case 'string':
|
||
|
|
string += `"${value}"`;
|
||
|
|
break;
|
||
|
|
case 'object':
|
||
|
|
string += JSON.stringify(value);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
string += value;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return `${string}]`;
|
||
|
|
}
|
||
|
|
// guess the width of the console window, max-width 80.
|
||
|
|
function windowWidth() {
|
||
|
|
const maxWidth = 80;
|
||
|
|
// CI is not a TTY
|
||
|
|
/* c8 ignore next 2 */
|
||
|
|
if (typeof process === 'object' && process.stdout && process.stdout.columns) {
|
||
|
|
return Math.min(maxWidth, process.stdout.columns);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
return maxWidth;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// logic for displaying application version.
|
||
|
|
let version = null;
|
||
|
|
self.version = (ver) => {
|
||
|
|
version = ver;
|
||
|
|
};
|
||
|
|
self.showVersion = () => {
|
||
|
|
const logger = yargs._getLoggerInstance();
|
||
|
|
logger.log(version);
|
||
|
|
};
|
||
|
|
self.reset = function reset(localLookup) {
|
||
|
|
// do not reset wrap here
|
||
|
|
// do not reset fails here
|
||
|
|
failMessage = null;
|
||
|
|
failureOutput = false;
|
||
|
|
usages = [];
|
||
|
|
usageDisabled = false;
|
||
|
|
epilogs = [];
|
||
|
|
examples = [];
|
||
|
|
commands = [];
|
||
|
|
descriptions = obj_filter_1.objFilter(descriptions, k => !localLookup[k]);
|
||
|
|
return self;
|
||
|
|
};
|
||
|
|
const frozens = [];
|
||
|
|
self.freeze = function freeze() {
|
||
|
|
frozens.push({
|
||
|
|
failMessage,
|
||
|
|
failureOutput,
|
||
|
|
usages,
|
||
|
|
usageDisabled,
|
||
|
|
epilogs,
|
||
|
|
examples,
|
||
|
|
commands,
|
||
|
|
descriptions
|
||
|
|
});
|
||
|
|
};
|
||
|
|
self.unfreeze = function unfreeze() {
|
||
|
|
const frozen = frozens.pop();
|
||
|
|
common_types_1.assertNotStrictEqual(frozen, undefined);
|
||
|
|
({
|
||
|
|
failMessage,
|
||
|
|
failureOutput,
|
||
|
|
usages,
|
||
|
|
usageDisabled,
|
||
|
|
epilogs,
|
||
|
|
examples,
|
||
|
|
commands,
|
||
|
|
descriptions
|
||
|
|
} = frozen);
|
||
|
|
};
|
||
|
|
return self;
|
||
|
|
}
|
||
|
|
exports.usage = usage;
|