<form method="POST">
    <h3>Editing: rollup</h3>
    <textarea name="content" rows="20" cols="80">#!/usr/bin/env node

/*
  @license
	Rollup.js v3.9.1
	Mon, 02 Jan 2023 13:46:34 GMT - commit c6c884433e748cde70f3f4299dd48b81af97ec14

	https://github.com/rollup/rollup

	Released under the MIT License.
*/
'use strict';

Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });

const process$1 = require('node:process');
const rollup = require('../shared/rollup.js');
const require$$2 = require('util');
const require$$0 = require('path');
const require$$0$1 = require('fs');
const promises = require('node:fs/promises');
const node_path = require('node:path');
const loadConfigFile_js = require('../shared/loadConfigFile.js');
require('node:perf_hooks');
require('node:crypto');
require('node:events');
require('tty');
require('node:url');

const help = &quot;rollup version __VERSION__\n=====================================\n\nUsage: rollup [options] &lt;entry file&gt;\n\nBasic options:\n\n-c, --config &lt;filename&gt;     Use this config file (if argument is used but value\n                              is unspecified, defaults to rollup.config.js)\n-d, --dir &lt;dirname&gt;         Directory for chunks (if absent, prints to stdout)\n-e, --external &lt;ids&gt;        Comma-separate list of module IDs to exclude\n-f, --format &lt;format&gt;       Type of output (amd, cjs, es, iife, umd, system)\n-g, --globals &lt;pairs&gt;       Comma-separate list of `moduleID:Global` pairs\n-h, --help                  Show this help message\n-i, --input &lt;filename&gt;      Input (alternative to &lt;entry file&gt;)\n-m, --sourcemap             Generate sourcemap (`-m inline` for inline map)\n-n, --name &lt;name&gt;           Name for UMD export\n-o, --file &lt;output&gt;         Single output file (if absent, prints to stdout)\n-p, --plugin &lt;plugin&gt;       Use the plugin specified (may be repeated)\n-v, --version               Show version number\n-w, --watch                 Watch files in bundle and rebuild on changes\n--amd.autoId                Generate the AMD ID based off the chunk name\n--amd.basePath &lt;prefix&gt;     Path to prepend to auto generated AMD ID\n--amd.define &lt;name&gt;         Function to use in place of `define`\n--amd.forceJsExtensionForImports Use `.js` extension in AMD imports\n--amd.id &lt;id&gt;               ID for AMD module (default is anonymous)\n--assetFileNames &lt;pattern&gt;  Name pattern for emitted assets\n--banner &lt;text&gt;             Code to insert at top of bundle (outside wrapper)\n--chunkFileNames &lt;pattern&gt;  Name pattern for emitted secondary chunks\n--compact                   Minify wrapper code\n--context &lt;variable&gt;        Specify top-level `this` value\n--no-dynamicImportInCjs     Write external dynamic CommonJS imports as require\n--entryFileNames &lt;pattern&gt;  Name pattern for emitted entry chunks\n--environment &lt;values&gt;      Settings passed to config file (see example)\n--no-esModule               Do not add __esModule property\n--exports &lt;mode&gt;            Specify export mode (auto, default, named, none)\n--extend                    Extend global variable defined by --name\n--no-externalImportAssertions Omit import assertions in \&quot;es\&quot; output\n--no-externalLiveBindings   Do not generate code to support live bindings\n--failAfterWarnings         Exit with an error if the build produced warnings\n--footer &lt;text&gt;             Code to insert at end of bundle (outside wrapper)\n--no-freeze                 Do not freeze namespace objects\n--generatedCode &lt;preset&gt;    Which code features to use (es5/es2015)\n--generatedCode.arrowFunctions Use arrow functions in generated code\n--generatedCode.constBindings Use \&quot;const\&quot; in generated code\n--generatedCode.objectShorthand Use shorthand properties in generated code\n--no-generatedCode.reservedNamesAsProps Always quote reserved names as props\n--generatedCode.symbols     Use symbols in generated code\n--no-hoistTransitiveImports Do not hoist transitive imports into entry chunks\n--no-indent                 Don't indent result\n--inlineDynamicImports      Create single bundle when using dynamic imports\n--no-interop                Do not include interop block\n--intro &lt;text&gt;              Code to insert at top of bundle (inside wrapper)\n--no-makeAbsoluteExternalsRelative Prevent normalization of external imports\n--maxParallelFileOps &lt;value&gt; How many files to read in parallel\n--minifyInternalExports     Force or disable minification of internal exports\n--noConflict                Generate a noConflict method for UMD globals\n--outro &lt;text&gt;              Code to insert at end of bundle (inside wrapper)\n--perf                      Display performance timings\n--no-preserveEntrySignatures Avoid facade chunks for entry points\n--preserveModules           Preserve module structure\n--preserveModulesRoot       Put preserved modules under this path at root level\n--preserveSymlinks          Do not follow symlinks when resolving files\n--no-sanitizeFileName       Do not replace invalid characters in file names\n--shimMissingExports        Create shim variables for missing exports\n--silent                    Don't print warnings\n--sourcemapBaseUrl &lt;url&gt;    Emit absolute sourcemap URLs with given base\n--sourcemapExcludeSources   Do not include source code in source maps\n--sourcemapFile &lt;file&gt;      Specify bundle position for source maps\n--stdin=ext                 Specify file extension used for stdin input\n--no-stdin                  Do not read \&quot;-\&quot; from stdin\n--no-strict                 Don't emit `\&quot;use strict\&quot;;` in the generated modules\n--strictDeprecations        Throw errors for deprecated features\n--no-systemNullSetters      Do not replace empty SystemJS setters with `null`\n--no-treeshake              Disable tree-shaking optimisations\n--no-treeshake.annotations  Ignore pure call annotations\n--treeshake.correctVarValueBeforeDeclaration Deoptimize variables until declared\n--treeshake.manualPureFunctions &lt;names&gt; Manually declare functions as pure\n--no-treeshake.moduleSideEffects Assume modules have no side effects\n--no-treeshake.propertyReadSideEffects Ignore property access side effects\n--no-treeshake.tryCatchDeoptimization Do not turn off try-catch-tree-shaking\n--no-treeshake.unknownGlobalSideEffects Assume unknown globals do not throw\n--validate                  Validate output\n--waitForBundleInput        Wait for bundle input files\n--watch.buildDelay &lt;number&gt; Throttle watch rebuilds\n--no-watch.clearScreen      Do not clear the screen when rebuilding\n--watch.exclude &lt;files&gt;     Exclude files from being watched\n--watch.include &lt;files&gt;     Limit watching to specified files\n--watch.onBundleEnd &lt;cmd&gt;   Shell command to run on `\&quot;BUNDLE_END\&quot;` event\n--watch.onBundleStart &lt;cmd&gt; Shell command to run on `\&quot;BUNDLE_START\&quot;` event\n--watch.onEnd &lt;cmd&gt;         Shell command to run on `\&quot;END\&quot;` event\n--watch.onError &lt;cmd&gt;       Shell command to run on `\&quot;ERROR\&quot;` event\n--watch.onStart &lt;cmd&gt;       Shell command to run on `\&quot;START\&quot;` event\n--watch.skipWrite           Do not write files to disk when watching\n\nExamples:\n\n# use settings in config file\nrollup -c\n\n# in config file, process.env.INCLUDE_DEPS === 'true'\n# and process.env.BUILD === 'production'\nrollup -c --environment INCLUDE_DEPS,BUILD:production\n\n# create CommonJS bundle.js from src/main.js\nrollup --format=cjs --file=bundle.js -- src/main.js\n\n# create self-executing IIFE using `window.jQuery`\n# and `window._` as external globals\nrollup -f iife --globals jquery:jQuery,lodash:_ \\\n  -i src/app.js -o build/app.js -m build/app.js.map\n\nNotes:\n\n* When piping to stdout, only inline sourcemaps are permitted\n\nFor more information visit https://rollupjs.org\n&quot;;

/**
 * @license
 * Copyright (c) 2016, Contributors
 * SPDX-License-Identifier: ISC
 */
function camelCase(str) {
    // Handle the case where an argument is provided as camel case, e.g., fooBar.
    // by ensuring that the string isn't already mixed case:
    const isCamelCase = str !== str.toLowerCase() &amp;&amp; str !== str.toUpperCase();
    if (!isCamelCase) {
        str = str.toLowerCase();
    }
    if (str.indexOf('-') === -1 &amp;&amp; str.indexOf('_') === -1) {
        return str;
    }
    else {
        let camelcase = '';
        let nextChrUpper = false;
        const leadingHyphens = str.match(/^-+/);
        for (let i = leadingHyphens ? leadingHyphens[0].length : 0; i &lt; str.length; i++) {
            let chr = str.charAt(i);
            if (nextChrUpper) {
                nextChrUpper = false;
                chr = chr.toUpperCase();
            }
            if (i !== 0 &amp;&amp; (chr === '-' || chr === '_')) {
                nextChrUpper = true;
            }
            else if (chr !== '-' &amp;&amp; chr !== '_') {
                camelcase += chr;
            }
        }
        return camelcase;
    }
}
function decamelize(str, joinString) {
    const lowercase = str.toLowerCase();
    joinString = joinString || '-';
    let notCamelcase = '';
    for (let i = 0; i &lt; str.length; i++) {
        const chrLower = lowercase.charAt(i);
        const chrString = str.charAt(i);
        if (chrLower !== chrString &amp;&amp; i &gt; 0) {
            notCamelcase += `${joinString}${lowercase.charAt(i)}`;
        }
        else {
            notCamelcase += chrString;
        }
    }
    return notCamelcase;
}
function looksLikeNumber(x) {
    if (x === null || x === undefined)
        return false;
    // if loaded from config, may already be a number.
    if (typeof x === 'number')
        return true;
    // hexadecimal.
    if (/^0x[0-9a-f]+$/i.test(x))
        return true;
    // don't treat 0123 as a number; as it drops the leading '0'.
    if (/^0[^.]/.test(x))
        return false;
    return /^[-]?(?:\d+(?:\.\d*)?|\.\d+)(e[-+]?\d+)?$/.test(x);
}

/**
 * @license
 * Copyright (c) 2016, Contributors
 * SPDX-License-Identifier: ISC
 */
// take an un-split argv string and tokenize it.
function tokenizeArgString(argString) {
    if (Array.isArray(argString)) {
        return argString.map(e =&gt; typeof e !== 'string' ? e + '' : e);
    }
    argString = argString.trim();
    let i = 0;
    let prevC = null;
    let c = null;
    let opening = null;
    const args = [];
    for (let ii = 0; ii &lt; argString.length; ii++) {
        prevC = c;
        c = argString.charAt(ii);
        // split on spaces unless we're in quotes.
        if (c === ' ' &amp;&amp; !opening) {
            if (!(prevC === ' ')) {
                i++;
            }
            continue;
        }
        // don't split the string if we're in matching
        // opening or closing single and double quotes.
        if (c === opening) {
            opening = null;
        }
        else if ((c === &quot;'&quot; || c === '&quot;') &amp;&amp; !opening) {
            opening = c;
        }
        if (!args[i])
            args[i] = '';
        args[i] += c;
    }
    return args;
}

/**
 * @license
 * Copyright (c) 2016, Contributors
 * SPDX-License-Identifier: ISC
 */
var DefaultValuesForTypeKey;
(function (DefaultValuesForTypeKey) {
    DefaultValuesForTypeKey[&quot;BOOLEAN&quot;] = &quot;boolean&quot;;
    DefaultValuesForTypeKey[&quot;STRING&quot;] = &quot;string&quot;;
    DefaultValuesForTypeKey[&quot;NUMBER&quot;] = &quot;number&quot;;
    DefaultValuesForTypeKey[&quot;ARRAY&quot;] = &quot;array&quot;;
})(DefaultValuesForTypeKey || (DefaultValuesForTypeKey = {}));

/**
 * @license
 * Copyright (c) 2016, Contributors
 * SPDX-License-Identifier: ISC
 */
let mixin;
class YargsParser {
    constructor(_mixin) {
        mixin = _mixin;
    }
    parse(argsInput, options) {
        const opts = Object.assign({
            alias: undefined,
            array: undefined,
            boolean: undefined,
            config: undefined,
            configObjects: undefined,
            configuration: undefined,
            coerce: undefined,
            count: undefined,
            default: undefined,
            envPrefix: undefined,
            narg: undefined,
            normalize: undefined,
            string: undefined,
            number: undefined,
            __: undefined,
            key: undefined
        }, options);
        // allow a string argument to be passed in rather
        // than an argv array.
        const args = tokenizeArgString(argsInput);
        // tokenizeArgString adds extra quotes to args if argsInput is a string
        // only strip those extra quotes in processValue if argsInput is a string
        const inputIsString = typeof argsInput === 'string';
        // aliases might have transitive relationships, normalize this.
        const aliases = combineAliases(Object.assign(Object.create(null), opts.alias));
        const configuration = Object.assign({
            'boolean-negation': true,
            'camel-case-expansion': true,
            'combine-arrays': false,
            'dot-notation': true,
            'duplicate-arguments-array': true,
            'flatten-duplicate-arrays': true,
            'greedy-arrays': true,
            'halt-at-non-option': false,
            'nargs-eats-options': false,
            'negation-prefix': 'no-',
            'parse-numbers': true,
            'parse-positional-numbers': true,
            'populate--': false,
            'set-placeholder-key': false,
            'short-option-groups': true,
            'strip-aliased': false,
            'strip-dashed': false,
            'unknown-options-as-args': false
        }, opts.configuration);
        const defaults = Object.assign(Object.create(null), opts.default);
        const configObjects = opts.configObjects || [];
        const envPrefix = opts.envPrefix;
        const notFlagsOption = configuration['populate--'];
        const notFlagsArgv = notFlagsOption ? '--' : '_';
        const newAliases = Object.create(null);
        const defaulted = Object.create(null);
        // allow a i18n handler to be passed in, default to a fake one (util.format).
        const __ = opts.__ || mixin.format;
        const flags = {
            aliases: Object.create(null),
            arrays: Object.create(null),
            bools: Object.create(null),
            strings: Object.create(null),
            numbers: Object.create(null),
            counts: Object.create(null),
            normalize: Object.create(null),
            configs: Object.create(null),
            nargs: Object.create(null),
            coercions: Object.create(null),
            keys: []
        };
        const negative = /^-([0-9]+(\.[0-9]+)?|\.[0-9]+)$/;
        const negatedBoolean = new RegExp('^--' + configuration['negation-prefix'] + '(.+)');
        [].concat(opts.array || []).filter(Boolean).forEach(function (opt) {
            const key = typeof opt === 'object' ? opt.key : opt;
            // assign to flags[bools|strings|numbers]
            const assignment = Object.keys(opt).map(function (key) {
                const arrayFlagKeys = {
                    boolean: 'bools',
                    string: 'strings',
                    number: 'numbers'
                };
                return arrayFlagKeys[key];
            }).filter(Boolean).pop();
            // assign key to be coerced
            if (assignment) {
                flags[assignment][key] = true;
            }
            flags.arrays[key] = true;
            flags.keys.push(key);
        });
        [].concat(opts.boolean || []).filter(Boolean).forEach(function (key) {
            flags.bools[key] = true;
            flags.keys.push(key);
        });
        [].concat(opts.string || []).filter(Boolean).forEach(function (key) {
            flags.strings[key] = true;
            flags.keys.push(key);
        });
        [].concat(opts.number || []).filter(Boolean).forEach(function (key) {
            flags.numbers[key] = true;
            flags.keys.push(key);
        });
        [].concat(opts.count || []).filter(Boolean).forEach(function (key) {
            flags.counts[key] = true;
            flags.keys.push(key);
        });
        [].concat(opts.normalize || []).filter(Boolean).forEach(function (key) {
            flags.normalize[key] = true;
            flags.keys.push(key);
        });
        if (typeof opts.narg === 'object') {
            Object.entries(opts.narg).forEach(([key, value]) =&gt; {
                if (typeof value === 'number') {
                    flags.nargs[key] = value;
                    flags.keys.push(key);
                }
            });
        }
        if (typeof opts.coerce === 'object') {
            Object.entries(opts.coerce).forEach(([key, value]) =&gt; {
                if (typeof value === 'function') {
                    flags.coercions[key] = value;
                    flags.keys.push(key);
                }
            });
        }
        if (typeof opts.config !== 'undefined') {
            if (Array.isArray(opts.config) || typeof opts.config === 'string') {
                [].concat(opts.config).filter(Boolean).forEach(function (key) {
                    flags.configs[key] = true;
                });
            }
            else if (typeof opts.config === 'object') {
                Object.entries(opts.config).forEach(([key, value]) =&gt; {
                    if (typeof value === 'boolean' || typeof value === 'function') {
                        flags.configs[key] = value;
                    }
                });
            }
        }
        // create a lookup table that takes into account all
        // combinations of aliases: {f: ['foo'], foo: ['f']}
        extendAliases(opts.key, aliases, opts.default, flags.arrays);
        // apply default values to all aliases.
        Object.keys(defaults).forEach(function (key) {
            (flags.aliases[key] || []).forEach(function (alias) {
                defaults[alias] = defaults[key];
            });
        });
        let error = null;
        checkConfiguration();
        let notFlags = [];
        const argv = Object.assign(Object.create(null), { _: [] });
        // TODO(bcoe): for the first pass at removing object prototype  we didn't
        // remove all prototypes from objects returned by this API, we might want
        // to gradually move towards doing so.
        const argvReturn = {};
        for (let i = 0; i &lt; args.length; i++) {
            const arg = args[i];
            const truncatedArg = arg.replace(/^-{3,}/, '---');
            let broken;
            let key;
            let letters;
            let m;
            let next;
            let value;
            // any unknown option (except for end-of-options, &quot;--&quot;)
            if (arg !== '--' &amp;&amp; /^-/.test(arg) &amp;&amp; isUnknownOptionAsArg(arg)) {
                pushPositional(arg);
                // ---, ---=, ----, etc,
            }
            else if (truncatedArg.match(/^---+(=|$)/)) {
                // options without key name are invalid.
                pushPositional(arg);
                continue;
                // -- separated by =
            }
            else if (arg.match(/^--.+=/) || (!configuration['short-option-groups'] &amp;&amp; arg.match(/^-.+=/))) {
                // Using [\s\S] instead of . because js doesn't support the
                // 'dotall' regex modifier. See:
                // http://stackoverflow.com/a/1068308/13216
                m = arg.match(/^--?([^=]+)=([\s\S]*)$/);
                // arrays format = '--f=a b c'
                if (m !== null &amp;&amp; Array.isArray(m) &amp;&amp; m.length &gt;= 3) {
                    if (checkAllAliases(m[1], flags.arrays)) {
                        i = eatArray(i, m[1], args, m[2]);
                    }
                    else if (checkAllAliases(m[1], flags.nargs) !== false) {
                        // nargs format = '--f=monkey washing cat'
                        i = eatNargs(i, m[1], args, m[2]);
                    }
                    else {
                        setArg(m[1], m[2], true);
                    }
                }
            }
            else if (arg.match(negatedBoolean) &amp;&amp; configuration['boolean-negation']) {
                m = arg.match(negatedBoolean);
                if (m !== null &amp;&amp; Array.isArray(m) &amp;&amp; m.length &gt;= 2) {
                    key = m[1];
                    setArg(key, checkAllAliases(key, flags.arrays) ? [false] : false);
                }
                // -- separated by space.
            }
            else if (arg.match(/^--.+/) || (!configuration['short-option-groups'] &amp;&amp; arg.match(/^-[^-]+/))) {
                m = arg.match(/^--?(.+)/);
                if (m !== null &amp;&amp; Array.isArray(m) &amp;&amp; m.length &gt;= 2) {
                    key = m[1];
                    if (checkAllAliases(key, flags.arrays)) {
                        // array format = '--foo a b c'
                        i = eatArray(i, key, args);
                    }
                    else if (checkAllAliases(key, flags.nargs) !== false) {
                        // nargs format = '--foo a b c'
                        // should be truthy even if: flags.nargs[key] === 0
                        i = eatNargs(i, key, args);
                    }
                    else {
                        next = args[i + 1];
                        if (next !== undefined &amp;&amp; (!next.match(/^-/) ||
                            next.match(negative)) &amp;&amp;
                            !checkAllAliases(key, flags.bools) &amp;&amp;
                            !checkAllAliases(key, flags.counts)) {
                            setArg(key, next);
                            i++;
                        }
                        else if (/^(true|false)$/.test(next)) {
                            setArg(key, next);
                            i++;
                        }
                        else {
                            setArg(key, defaultValue(key));
                        }
                    }
                }
                // dot-notation flag separated by '='.
            }
            else if (arg.match(/^-.\..+=/)) {
                m = arg.match(/^-([^=]+)=([\s\S]*)$/);
                if (m !== null &amp;&amp; Array.isArray(m) &amp;&amp; m.length &gt;= 3) {
                    setArg(m[1], m[2]);
                }
                // dot-notation flag separated by space.
            }
            else if (arg.match(/^-.\..+/) &amp;&amp; !arg.match(negative)) {
                next = args[i + 1];
                m = arg.match(/^-(.\..+)/);
                if (m !== null &amp;&amp; Array.isArray(m) &amp;&amp; m.length &gt;= 2) {
                    key = m[1];
                    if (next !== undefined &amp;&amp; !next.match(/^-/) &amp;&amp;
                        !checkAllAliases(key, flags.bools) &amp;&amp;
                        !checkAllAliases(key, flags.counts)) {
                        setArg(key, next);
                        i++;
                    }
                    else {
                        setArg(key, defaultValue(key));
                    }
                }
            }
            else if (arg.match(/^-[^-]+/) &amp;&amp; !arg.match(negative)) {
                letters = arg.slice(1, -1).split('');
                broken = false;
                for (let j = 0; j &lt; letters.length; j++) {
                    next = arg.slice(j + 2);
                    if (letters[j + 1] &amp;&amp; letters[j + 1] === '=') {
                        value = arg.slice(j + 3);
                        key = letters[j];
                        if (checkAllAliases(key, flags.arrays)) {
                            // array format = '-f=a b c'
                            i = eatArray(i, key, args, value);
                        }
                        else if (checkAllAliases(key, flags.nargs) !== false) {
                            // nargs format = '-f=monkey washing cat'
                            i = eatNargs(i, key, args, value);
                        }
                        else {
                            setArg(key, value);
                        }
                        broken = true;
                        break;
                    }
                    if (next === '-') {
                        setArg(letters[j], next);
                        continue;
                    }
                    // current letter is an alphabetic character and next value is a number
                    if (/[A-Za-z]/.test(letters[j]) &amp;&amp;
                        /^-?\d+(\.\d*)?(e-?\d+)?$/.test(next) &amp;&amp;
                        checkAllAliases(next, flags.bools) === false) {
                        setArg(letters[j], next);
                        broken = true;
                        break;
                    }
                    if (letters[j + 1] &amp;&amp; letters[j + 1].match(/\W/)) {
                        setArg(letters[j], next);
                        broken = true;
                        break;
                    }
                    else {
                        setArg(letters[j], defaultValue(letters[j]));
                    }
                }
                key = arg.slice(-1)[0];
                if (!broken &amp;&amp; key !== '-') {
                    if (checkAllAliases(key, flags.arrays)) {
                        // array format = '-f a b c'
                        i = eatArray(i, key, args);
                    }
                    else if (checkAllAliases(key, flags.nargs) !== false) {
                        // nargs format = '-f a b c'
                        // should be truthy even if: flags.nargs[key] === 0
                        i = eatNargs(i, key, args);
                    }
                    else {
                        next = args[i + 1];
                        if (next !== undefined &amp;&amp; (!/^(-|--)[^-]/.test(next) ||
                            next.match(negative)) &amp;&amp;
                            !checkAllAliases(key, flags.bools) &amp;&amp;
                            !checkAllAliases(key, flags.counts)) {
                            setArg(key, next);
                            i++;
                        }
                        else if (/^(true|false)$/.test(next)) {
                            setArg(key, next);
                            i++;
                        }
                        else {
                            setArg(key, defaultValue(key));
                        }
                    }
                }
            }
            else if (arg.match(/^-[0-9]$/) &amp;&amp;
                arg.match(negative) &amp;&amp;
                checkAllAliases(arg.slice(1), flags.bools)) {
                // single-digit boolean alias, e.g: xargs -0
                key = arg.slice(1);
                setArg(key, defaultValue(key));
            }
            else if (arg === '--') {
                notFlags = args.slice(i + 1);
                break;
            }
            else if (configuration['halt-at-non-option']) {
                notFlags = args.slice(i);
                break;
            }
            else {
                pushPositional(arg);
            }
        }
        // order of precedence:
        // 1. command line arg
        // 2. value from env var
        // 3. value from config file
        // 4. value from config objects
        // 5. configured default value
        applyEnvVars(argv, true); // special case: check env vars that point to config file
        applyEnvVars(argv, false);
        setConfig(argv);
        setConfigObjects();
        applyDefaultsAndAliases(argv, flags.aliases, defaults, true);
        applyCoercions(argv);
        if (configuration['set-placeholder-key'])
            setPlaceholderKeys(argv);
        // for any counts either not in args or without an explicit default, set to 0
        Object.keys(flags.counts).forEach(function (key) {
            if (!hasKey(argv, key.split('.')))
                setArg(key, 0);
        });
        // '--' defaults to undefined.
        if (notFlagsOption &amp;&amp; notFlags.length)
            argv[notFlagsArgv] = [];
        notFlags.forEach(function (key) {
            argv[notFlagsArgv].push(key);
        });
        if (configuration['camel-case-expansion'] &amp;&amp; configuration['strip-dashed']) {
            Object.keys(argv).filter(key =&gt; key !== '--' &amp;&amp; key.includes('-')).forEach(key =&gt; {
                delete argv[key];
            });
        }
        if (configuration['strip-aliased']) {
            [].concat(...Object.keys(aliases).map(k =&gt; aliases[k])).forEach(alias =&gt; {
                if (configuration['camel-case-expansion'] &amp;&amp; alias.includes('-')) {
                    delete argv[alias.split('.').map(prop =&gt; camelCase(prop)).join('.')];
                }
                delete argv[alias];
            });
        }
        // Push argument into positional array, applying numeric coercion:
        function pushPositional(arg) {
            const maybeCoercedNumber = maybeCoerceNumber('_', arg);
            if (typeof maybeCoercedNumber === 'string' || typeof maybeCoercedNumber === 'number') {
                argv._.push(maybeCoercedNumber);
            }
        }
        // how many arguments should we consume, based
        // on the nargs option?
        function eatNargs(i, key, args, argAfterEqualSign) {
            let ii;
            let toEat = checkAllAliases(key, flags.nargs);
            // NaN has a special meaning for the array type, indicating that one or
            // more values are expected.
            toEat = typeof toEat !== 'number' || isNaN(toEat) ? 1 : toEat;
            if (toEat === 0) {
                if (!isUndefined(argAfterEqualSign)) {
                    error = Error(__('Argument unexpected for: %s', key));
                }
                setArg(key, defaultValue(key));
                return i;
            }
            let available = isUndefined(argAfterEqualSign) ? 0 : 1;
            if (configuration['nargs-eats-options']) {
                // classic behavior, yargs eats positional and dash arguments.
                if (args.length - (i + 1) + available &lt; toEat) {
                    error = Error(__('Not enough arguments following: %s', key));
                }
                available = toEat;
            }
            else {
                // nargs will not consume flag arguments, e.g., -abc, --foo,
                // and terminates when one is observed.
                for (ii = i + 1; ii &lt; args.length; ii++) {
                    if (!args[ii].match(/^-[^0-9]/) || args[ii].match(negative) || isUnknownOptionAsArg(args[ii]))
                        available++;
                    else
                        break;
                }
                if (available &lt; toEat)
                    error = Error(__('Not enough arguments following: %s', key));
            }
            let consumed = Math.min(available, toEat);
            if (!isUndefined(argAfterEqualSign) &amp;&amp; consumed &gt; 0) {
                setArg(key, argAfterEqualSign);
                consumed--;
            }
            for (ii = i + 1; ii &lt; (consumed + i + 1); ii++) {
                setArg(key, args[ii]);
            }
            return (i + consumed);
        }
        // if an option is an array, eat all non-hyphenated arguments
        // following it... YUM!
        // e.g., --foo apple banana cat becomes [&quot;apple&quot;, &quot;banana&quot;, &quot;cat&quot;]
        function eatArray(i, key, args, argAfterEqualSign) {
            let argsToSet = [];
            let next = argAfterEqualSign || args[i + 1];
            // If both array and nargs are configured, enforce the nargs count:
            const nargsCount = checkAllAliases(key, flags.nargs);
            if (checkAllAliases(key, flags.bools) &amp;&amp; !(/^(true|false)$/.test(next))) {
                argsToSet.push(true);
            }
            else if (isUndefined(next) ||
                (isUndefined(argAfterEqualSign) &amp;&amp; /^-/.test(next) &amp;&amp; !negative.test(next) &amp;&amp; !isUnknownOptionAsArg(next))) {
                // for keys without value ==&gt; argsToSet remains an empty []
                // set user default value, if available
                if (defaults[key] !== undefined) {
                    const defVal = defaults[key];
                    argsToSet = Array.isArray(defVal) ? defVal : [defVal];
                }
            }
            else {
                // value in --option=value is eaten as is
                if (!isUndefined(argAfterEqualSign)) {
                    argsToSet.push(processValue(key, argAfterEqualSign, true));
                }
                for (let ii = i + 1; ii &lt; args.length; ii++) {
                    if ((!configuration['greedy-arrays'] &amp;&amp; argsToSet.length &gt; 0) ||
                        (nargsCount &amp;&amp; typeof nargsCount === 'number' &amp;&amp; argsToSet.length &gt;= nargsCount))
                        break;
                    next = args[ii];
                    if (/^-/.test(next) &amp;&amp; !negative.test(next) &amp;&amp; !isUnknownOptionAsArg(next))
                        break;
                    i = ii;
                    argsToSet.push(processValue(key, next, inputIsString));
                }
            }
            // If both array and nargs are configured, create an error if less than
            // nargs positionals were found. NaN has special meaning, indicating
            // that at least one value is required (more are okay).
            if (typeof nargsCount === 'number' &amp;&amp; ((nargsCount &amp;&amp; argsToSet.length &lt; nargsCount) ||
                (isNaN(nargsCount) &amp;&amp; argsToSet.length === 0))) {
                error = Error(__('Not enough arguments following: %s', key));
            }
            setArg(key, argsToSet);
            return i;
        }
        function setArg(key, val, shouldStripQuotes = inputIsString) {
            if (/-/.test(key) &amp;&amp; configuration['camel-case-expansion']) {
                const alias = key.split('.').map(function (prop) {
                    return camelCase(prop);
                }).join('.');
                addNewAlias(key, alias);
            }
            const value = processValue(key, val, shouldStripQuotes);
            const splitKey = key.split('.');
            setKey(argv, splitKey, value);
            // handle populating aliases of the full key
            if (flags.aliases[key]) {
                flags.aliases[key].forEach(function (x) {
                    const keyProperties = x.split('.');
                    setKey(argv, keyProperties, value);
                });
            }
            // handle populating aliases of the first element of the dot-notation key
            if (splitKey.length &gt; 1 &amp;&amp; configuration['dot-notation']) {
                (flags.aliases[splitKey[0]] || []).forEach(function (x) {
                    let keyProperties = x.split('.');
                    // expand alias with nested objects in key
                    const a = [].concat(splitKey);
                    a.shift(); // nuke the old key.
                    keyProperties = keyProperties.concat(a);
                    // populate alias only if is not already an alias of the full key
                    // (already populated above)
                    if (!(flags.aliases[key] || []).includes(keyProperties.join('.'))) {
                        setKey(argv, keyProperties, value);
                    }
                });
            }
            // Set normalize getter and setter when key is in 'normalize' but isn't an array
            if (checkAllAliases(key, flags.normalize) &amp;&amp; !checkAllAliases(key, flags.arrays)) {
                const keys = [key].concat(flags.aliases[key] || []);
                keys.forEach(function (key) {
                    Object.defineProperty(argvReturn, key, {
                        enumerable: true,
                        get() {
                            return val;
                        },
                        set(value) {
                            val = typeof value === 'string' ? mixin.normalize(value) : value;
                        }
                    });
                });
            }
        }
        function addNewAlias(key, alias) {
            if (!(flags.aliases[key] &amp;&amp; flags.aliases[key].length)) {
                flags.aliases[key] = [alias];
                newAliases[alias] = true;
            }
            if (!(flags.aliases[alias] &amp;&amp; flags.aliases[alias].length)) {
                addNewAlias(alias, key);
            }
        }
        function processValue(key, val, shouldStripQuotes) {
            // strings may be quoted, clean this up as we assign values.
            if (shouldStripQuotes) {
                val = stripQuotes(val);
            }
            // handle parsing boolean arguments --foo=true --bar false.
            if (checkAllAliases(key, flags.bools) || checkAllAliases(key, flags.counts)) {
                if (typeof val === 'string')
                    val = val === 'true';
            }
            let value = Array.isArray(val)
                ? val.map(function (v) { return maybeCoerceNumber(key, v); })
                : maybeCoerceNumber(key, val);
            // increment a count given as arg (either no value or value parsed as boolean)
            if (checkAllAliases(key, flags.counts) &amp;&amp; (isUndefined(value) || typeof value === 'boolean')) {
                value = increment();
            }
            // Set normalized value when key is in 'normalize' and in 'arrays'
            if (checkAllAliases(key, flags.normalize) &amp;&amp; checkAllAliases(key, flags.arrays)) {
                if (Array.isArray(val))
                    value = val.map((val) =&gt; { return mixin.normalize(val); });
                else
                    value = mixin.normalize(val);
            }
            return value;
        }
        function maybeCoerceNumber(key, value) {
            if (!configuration['parse-positional-numbers'] &amp;&amp; key === '_')
                return value;
            if (!checkAllAliases(key, flags.strings) &amp;&amp; !checkAllAliases(key, flags.bools) &amp;&amp; !Array.isArray(value)) {
                const shouldCoerceNumber = looksLikeNumber(value) &amp;&amp; configuration['parse-numbers'] &amp;&amp; (Number.isSafeInteger(Math.floor(parseFloat(`${value}`))));
                if (shouldCoerceNumber || (!isUndefined(value) &amp;&amp; checkAllAliases(key, flags.numbers))) {
                    value = Number(value);
                }
            }
            return value;
        }
        // set args from config.json file, this should be
        // applied last so that defaults can be applied.
        function setConfig(argv) {
            const configLookup = Object.create(null);
            // expand defaults/aliases, in-case any happen to reference
            // the config.json file.
            applyDefaultsAndAliases(configLookup, flags.aliases, defaults);
            Object.keys(flags.configs).forEach(function (configKey) {
                const configPath = argv[configKey] || configLookup[configKey];
                if (configPath) {
                    try {
                        let config = null;
                        const resolvedConfigPath = mixin.resolve(mixin.cwd(), configPath);
                        const resolveConfig = flags.configs[configKey];
                        if (typeof resolveConfig === 'function') {
                            try {
                                config = resolveConfig(resolvedConfigPath);
                            }
                            catch (e) {
                                config = e;
                            }
                            if (config instanceof Error) {
                                error = config;
                                return;
                            }
                        }
                        else {
                            config = mixin.require(resolvedConfigPath);
                        }
                        setConfigObject(config);
                    }
                    catch (ex) {
                        // Deno will receive a PermissionDenied error if an attempt is
                        // made to load config without the --allow-read flag:
                        if (ex.name === 'PermissionDenied')
                            error = ex;
                        else if (argv[configKey])
                            error = Error(__('Invalid JSON config file: %s', configPath));
                    }
                }
            });
        }
        // set args from config object.
        // it recursively checks nested objects.
        function setConfigObject(config, prev) {
            Object.keys(config).forEach(function (key) {
                const value = config[key];
                const fullKey = prev ? prev + '.' + key : key;
                // if the value is an inner object and we have dot-notation
                // enabled, treat inner objects in config the same as
                // heavily nested dot notations (foo.bar.apple).
                if (typeof value === 'object' &amp;&amp; value !== null &amp;&amp; !Array.isArray(value) &amp;&amp; configuration['dot-notation']) {
                    // if the value is an object but not an array, check nested object
                    setConfigObject(value, fullKey);
                }
                else {
                    // setting arguments via CLI takes precedence over
                    // values within the config file.
                    if (!hasKey(argv, fullKey.split('.')) || (checkAllAliases(fullKey, flags.arrays) &amp;&amp; configuration['combine-arrays'])) {
                        setArg(fullKey, value);
                    }
                }
            });
        }
        // set all config objects passed in opts
        function setConfigObjects() {
            if (typeof configObjects !== 'undefined') {
                configObjects.forEach(function (configObject) {
                    setConfigObject(configObject);
                });
            }
        }
        function applyEnvVars(argv, configOnly) {
            if (typeof envPrefix === 'undefined')
                return;
            const prefix = typeof envPrefix === 'string' ? envPrefix : '';
            const env = mixin.env();
            Object.keys(env).forEach(function (envVar) {
                if (prefix === '' || envVar.lastIndexOf(prefix, 0) === 0) {
                    // get array of nested keys and convert them to camel case
                    const keys = envVar.split('__').map(function (key, i) {
                        if (i === 0) {
                            key = key.substring(prefix.length);
                        }
                        return camelCase(key);
                    });
                    if (((configOnly &amp;&amp; flags.configs[keys.join('.')]) || !configOnly) &amp;&amp; !hasKey(argv, keys)) {
                        setArg(keys.join('.'), env[envVar]);
                    }
                }
            });
        }
        function applyCoercions(argv) {
            let coerce;
            const applied = new Set();
            Object.keys(argv).forEach(function (key) {
                if (!applied.has(key)) { // If we haven't already coerced this option via one of its aliases
                    coerce = checkAllAliases(key, flags.coercions);
                    if (typeof coerce === 'function') {
                        try {
                            const value = maybeCoerceNumber(key, coerce(argv[key]));
                            ([].concat(flags.aliases[key] || [], key)).forEach(ali =&gt; {
                                applied.add(ali);
                                argv[ali] = value;
                            });
                        }
                        catch (err) {
                            error = err;
                        }
                    }
                }
            });
        }
        function setPlaceholderKeys(argv) {
            flags.keys.forEach((key) =&gt; {
                // don't set placeholder keys for dot notation options 'foo.bar'.
                if (~key.indexOf('.'))
                    return;
                if (typeof argv[key] === 'undefined')
                    argv[key] = undefined;
            });
            return argv;
        }
        function applyDefaultsAndAliases(obj, aliases, defaults, canLog = false) {
            Object.keys(defaults).forEach(function (key) {
                if (!hasKey(obj, key.split('.'))) {
                    setKey(obj, key.split('.'), defaults[key]);
                    if (canLog)
                        defaulted[key] = true;
                    (aliases[key] || []).forEach(function (x) {
                        if (hasKey(obj, x.split('.')))
                            return;
                        setKey(obj, x.split('.'), defaults[key]);
                    });
                }
            });
        }
        function hasKey(obj, keys) {
            let o = obj;
            if (!configuration['dot-notation'])
                keys = [keys.join('.')];
            keys.slice(0, -1).forEach(function (key) {
                o = (o[key] || {});
            });
            const key = keys[keys.length - 1];
            if (typeof o !== 'object')
                return false;
            else
                return key in o;
        }
        function setKey(obj, keys, value) {
            let o = obj;
            if (!configuration['dot-notation'])
                keys = [keys.join('.')];
            keys.slice(0, -1).forEach(function (key) {
                // TODO(bcoe): in the next major version of yargs, switch to
                // Object.create(null) for dot notation:
                key = sanitizeKey(key);
                if (typeof o === 'object' &amp;&amp; o[key] === undefined) {
                    o[key] = {};
                }
                if (typeof o[key] !== 'object' || Array.isArray(o[key])) {
                    // ensure that o[key] is an array, and that the last item is an empty object.
                    if (Array.isArray(o[key])) {
                        o[key].push({});
                    }
                    else {
                        o[key] = [o[key], {}];
                    }
                    // we want to update the empty object at the end of the o[key] array, so set o to that object
                    o = o[key][o[key].length - 1];
                }
                else {
                    o = o[key];
                }
            });
            // TODO(bcoe): in the next major version of yargs, switch to
            // Object.create(null) for dot notation:
            const key = sanitizeKey(keys[keys.length - 1]);
            const isTypeArray = checkAllAliases(keys.join('.'), flags.arrays);
            const isValueArray = Array.isArray(value);
            let duplicate = configuration['duplicate-arguments-array'];
            // nargs has higher priority than duplicate
            if (!duplicate &amp;&amp; checkAllAliases(key, flags.nargs)) {
                duplicate = true;
                if ((!isUndefined(o[key]) &amp;&amp; flags.nargs[key] === 1) || (Array.isArray(o[key]) &amp;&amp; o[key].length === flags.nargs[key])) {
                    o[key] = undefined;
                }
            }
            if (value === increment()) {
                o[key] = increment(o[key]);
            }
            else if (Array.isArray(o[key])) {
                if (duplicate &amp;&amp; isTypeArray &amp;&amp; isValueArray) {
                    o[key] = configuration['flatten-duplicate-arrays'] ? o[key].concat(value) : (Array.isArray(o[key][0]) ? o[key] : [o[key]]).concat([value]);
                }
                else if (!duplicate &amp;&amp; Boolean(isTypeArray) === Boolean(isValueArray)) {
                    o[key] = value;
                }
                else {
                    o[key] = o[key].concat([value]);
                }
            }
            else if (o[key] === undefined &amp;&amp; isTypeArray) {
                o[key] = isValueArray ? value : [value];
            }
            else if (duplicate &amp;&amp; !(o[key] === undefined ||
                checkAllAliases(key, flags.counts) ||
                checkAllAliases(key, flags.bools))) {
                o[key] = [o[key], value];
            }
            else {
                o[key] = value;
            }
        }
        // extend the aliases list with inferred aliases.
        function extendAliases(...args) {
            args.forEach(function (obj) {
                Object.keys(obj || {}).forEach(function (key) {
                    // short-circuit if we've already added a key
                    // to the aliases array, for example it might
                    // exist in both 'opts.default' and 'opts.key'.
                    if (flags.aliases[key])
                        return;
                    flags.aliases[key] = [].concat(aliases[key] || []);
                    // For &quot;--option-name&quot;, also set argv.optionName
                    flags.aliases[key].concat(key).forEach(function (x) {
                        if (/-/.test(x) &amp;&amp; configuration['camel-case-expansion']) {
                            const c = camelCase(x);
                            if (c !== key &amp;&amp; flags.aliases[key].indexOf(c) === -1) {
                                flags.aliases[key].push(c);
                                newAliases[c] = true;
                            }
                        }
                    });
                    // For &quot;--optionName&quot;, also set argv['option-name']
                    flags.aliases[key].concat(key).forEach(function (x) {
                        if (x.length &gt; 1 &amp;&amp; /[A-Z]/.test(x) &amp;&amp; configuration['camel-case-expansion']) {
                            const c = decamelize(x, '-');
                            if (c !== key &amp;&amp; flags.aliases[key].indexOf(c) === -1) {
                                flags.aliases[key].push(c);
                                newAliases[c] = true;
                            }
                        }
                    });
                    flags.aliases[key].forEach(function (x) {
                        flags.aliases[x] = [key].concat(flags.aliases[key].filter(function (y) {
                            return x !== y;
                        }));
                    });
                });
            });
        }
        function checkAllAliases(key, flag) {
            const toCheck = [].concat(flags.aliases[key] || [], key);
            const keys = Object.keys(flag);
            const setAlias = toCheck.find(key =&gt; keys.includes(key));
            return setAlias ? flag[setAlias] : false;
        }
        function hasAnyFlag(key) {
            const flagsKeys = Object.keys(flags);
            const toCheck = [].concat(flagsKeys.map(k =&gt; flags[k]));
            return toCheck.some(function (flag) {
                return Array.isArray(flag) ? flag.includes(key) : flag[key];
            });
        }
        function hasFlagsMatching(arg, ...patterns) {
            const toCheck = [].concat(...patterns);
            return toCheck.some(function (pattern) {
                const match = arg.match(pattern);
                return match &amp;&amp; hasAnyFlag(match[1]);
            });
        }
        // based on a simplified version of the short flag group parsing logic
        function hasAllShortFlags(arg) {
            // if this is a negative number, or doesn't start with a single hyphen, it's not a short flag group
            if (arg.match(negative) || !arg.match(/^-[^-]+/)) {
                return false;
            }
            let hasAllFlags = true;
            let next;
            const letters = arg.slice(1).split('');
            for (let j = 0; j &lt; letters.length; j++) {
                next = arg.slice(j + 2);
                if (!hasAnyFlag(letters[j])) {
                    hasAllFlags = false;
                    break;
                }
                if ((letters[j + 1] &amp;&amp; letters[j + 1] === '=') ||
                    next === '-' ||
                    (/[A-Za-z]/.test(letters[j]) &amp;&amp; /^-?\d+(\.\d*)?(e-?\d+)?$/.test(next)) ||
                    (letters[j + 1] &amp;&amp; letters[j + 1].match(/\W/))) {
                    break;
                }
            }
            return hasAllFlags;
        }
        function isUnknownOptionAsArg(arg) {
            return configuration['unknown-options-as-args'] &amp;&amp; isUnknownOption(arg);
        }
        function isUnknownOption(arg) {
            arg = arg.replace(/^-{3,}/, '--');
            // ignore negative numbers
            if (arg.match(negative)) {
                return false;
            }
            // if this is a short option group and all of them are configured, it isn't unknown
            if (hasAllShortFlags(arg)) {
                return false;
            }
            // e.g. '--count=2'
            const flagWithEquals = /^-+([^=]+?)=[\s\S]*$/;
            // e.g. '-a' or '--arg'
            const normalFlag = /^-+([^=]+?)$/;
            // e.g. '-a-'
            const flagEndingInHyphen = /^-+([^=]+?)-$/;
            // e.g. '-abc123'
            const flagEndingInDigits = /^-+([^=]+?\d+)$/;
            // e.g. '-a/usr/local'
            const flagEndingInNonWordCharacters = /^-+([^=]+?)\W+.*$/;
            // check the different types of flag styles, including negatedBoolean, a pattern defined near the start of the parse method
            return !hasFlagsMatching(arg, flagWithEquals, negatedBoolean, normalFlag, flagEndingInHyphen, flagEndingInDigits, flagEndingInNonWordCharacters);
        }
        // make a best effort to pick a default value
        // for an option based on name and type.
        function defaultValue(key) {
            if (!checkAllAliases(key, flags.bools) &amp;&amp;
                !checkAllAliases(key, flags.counts) &amp;&amp;
                `${key}` in defaults) {
                return defaults[key];
            }
            else {
                return defaultForType(guessType(key));
            }
        }
        // return a default value, given the type of a flag.,
        function defaultForType(type) {
            const def = {
                [DefaultValuesForTypeKey.BOOLEAN]: true,
                [DefaultValuesForTypeKey.STRING]: '',
                [DefaultValuesForTypeKey.NUMBER]: undefined,
                [DefaultValuesForTypeKey.ARRAY]: []
            };
            return def[type];
        }
        // given a flag, enforce a default type.
        function guessType(key) {
            let type = DefaultValuesForTypeKey.BOOLEAN;
            if (checkAllAliases(key, flags.strings))
                type = DefaultValuesForTypeKey.STRING;
            else if (checkAllAliases(key, flags.numbers))
                type = DefaultValuesForTypeKey.NUMBER;
            else if (checkAllAliases(key, flags.bools))
                type = DefaultValuesForTypeKey.BOOLEAN;
            else if (checkAllAliases(key, flags.arrays))
                type = DefaultValuesForTypeKey.ARRAY;
            return type;
        }
        function isUndefined(num) {
            return num === undefined;
        }
        // check user configuration settings for inconsistencies
        function checkConfiguration() {
            // count keys should not be set as array/narg
            Object.keys(flags.counts).find(key =&gt; {
                if (checkAllAliases(key, flags.arrays)) {
                    error = Error(__('Invalid configuration: %s, opts.count excludes opts.array.', key));
                    return true;
                }
                else if (checkAllAliases(key, flags.nargs)) {
                    error = Error(__('Invalid configuration: %s, opts.count excludes opts.narg.', key));
                    return true;
                }
                return false;
            });
        }
        return {
            aliases: Object.assign({}, flags.aliases),
            argv: Object.assign(argvReturn, argv),
            configuration: configuration,
            defaulted: Object.assign({}, defaulted),
            error: error,
            newAliases: Object.assign({}, newAliases)
        };
    }
}
// if any aliases reference each other, we should
// merge them together.
function combineAliases(aliases) {
    const aliasArrays = [];
    const combined = Object.create(null);
    let change = true;
    // turn alias lookup hash {key: ['alias1', 'alias2']} into
    // a simple array ['key', 'alias1', 'alias2']
    Object.keys(aliases).forEach(function (key) {
        aliasArrays.push([].concat(aliases[key], key));
    });
    // combine arrays until zero changes are
    // made in an iteration.
    while (change) {
        change = false;
        for (let i = 0; i &lt; aliasArrays.length; i++) {
            for (let ii = i + 1; ii &lt; aliasArrays.length; ii++) {
                const intersect = aliasArrays[i].filter(function (v) {
                    return aliasArrays[ii].indexOf(v) !== -1;
                });
                if (intersect.length) {
                    aliasArrays[i] = aliasArrays[i].concat(aliasArrays[ii]);
                    aliasArrays.splice(ii, 1);
                    change = true;
                    break;
                }
            }
        }
    }
    // map arrays back to the hash-lookup (de-dupe while
    // we're at it).
    aliasArrays.forEach(function (aliasArray) {
        aliasArray = aliasArray.filter(function (v, i, self) {
            return self.indexOf(v) === i;
        });
        const lastAlias = aliasArray.pop();
        if (lastAlias !== undefined &amp;&amp; typeof lastAlias === 'string') {
            combined[lastAlias] = aliasArray;
        }
    });
    return combined;
}
// this function should only be called when a count is given as an arg
// it is NOT called to set a default value
// thus we can start the count at 1 instead of 0
function increment(orig) {
    return orig !== undefined ? orig + 1 : 1;
}
// TODO(bcoe): in the next major version of yargs, switch to
// Object.create(null) for dot notation:
function sanitizeKey(key) {
    if (key === '__proto__')
        return '___proto___';
    return key;
}
function stripQuotes(val) {
    return (typeof val === 'string' &amp;&amp;
        (val[0] === &quot;'&quot; || val[0] === '&quot;') &amp;&amp;
        val[val.length - 1] === val[0])
        ? val.substring(1, val.length - 1)
        : val;
}

/**
 * @fileoverview Main entrypoint for libraries using yargs-parser in Node.js
 * CJS and ESM environments.
 *
 * @license
 * Copyright (c) 2016, Contributors
 * SPDX-License-Identifier: ISC
 */
var _a, _b, _c;
// See https://github.com/yargs/yargs-parser#supported-nodejs-versions for our
// version support policy. The YARGS_MIN_NODE_VERSION is used for testing only.
const minNodeVersion = (process &amp;&amp; process.env &amp;&amp; process.env.YARGS_MIN_NODE_VERSION)
    ? Number(process.env.YARGS_MIN_NODE_VERSION)
    : 12;
const nodeVersion = (_b = (_a = process === null || process === void 0 ? void 0 : process.versions) === null || _a === void 0 ? void 0 : _a.node) !== null &amp;&amp; _b !== void 0 ? _b : (_c = process === null || process === void 0 ? void 0 : process.version) === null || _c === void 0 ? void 0 : _c.slice(1);
if (nodeVersion) {
    const major = Number(nodeVersion.match(/^([^.]+)/)[1]);
    if (major &lt; minNodeVersion) {
        throw Error(`yargs parser supports a minimum Node.js version of ${minNodeVersion}. Read our version support policy: https://github.com/yargs/yargs-parser#supported-nodejs-versions`);
    }
}
// Creates a yargs-parser instance using Node.js standard libraries:
const env = process ? process.env : {};
const parser = new YargsParser({
    cwd: process.cwd,
    env: () =&gt; {
        return env;
    },
    format: require$$2.format,
    normalize: require$$0.normalize,
    resolve: require$$0.resolve,
    // TODO: figure  out a  way to combine ESM and CJS coverage, such  that
    // we can exercise all the lines below:
    require: (path) =&gt; {
        if (typeof require !== 'undefined') {
            return require(path);
        }
        else if (path.match(/\.json$/)) {
            // Addresses: https://github.com/yargs/yargs/issues/2040
            return JSON.parse(require$$0$1.readFileSync(path, 'utf8'));
        }
        else {
            throw Error('only .json config files are supported in ESM');
        }
    }
});
const yargsParser = function Parser(args, opts) {
    const result = parser.parse(args.slice(), opts);
    return result.argv;
};
yargsParser.detailed = function (args, opts) {
    return parser.parse(args.slice(), opts);
};
yargsParser.camelCase = camelCase;
yargsParser.decamelize = decamelize;
yargsParser.looksLikeNumber = looksLikeNumber;
const argParser = yargsParser;

function parseMilliseconds(milliseconds) {
	if (typeof milliseconds !== 'number') {
		throw new TypeError('Expected a number');
	}

	const roundTowardsZero = milliseconds &gt; 0 ? Math.floor : Math.ceil;

	return {
		days: roundTowardsZero(milliseconds / 86400000),
		hours: roundTowardsZero(milliseconds / 3600000) % 24,
		minutes: roundTowardsZero(milliseconds / 60000) % 60,
		seconds: roundTowardsZero(milliseconds / 1000) % 60,
		milliseconds: roundTowardsZero(milliseconds) % 1000,
		microseconds: roundTowardsZero(milliseconds * 1000) % 1000,
		nanoseconds: roundTowardsZero(milliseconds * 1e6) % 1000
	};
}

const pluralize = (word, count) =&gt; count === 1 ? word : `${word}s`;

const SECOND_ROUNDING_EPSILON = 0.000_000_1;

function prettyMilliseconds(milliseconds, options = {}) {
	if (!Number.isFinite(milliseconds)) {
		throw new TypeError('Expected a finite number');
	}

	if (options.colonNotation) {
		options.compact = false;
		options.formatSubMilliseconds = false;
		options.separateMilliseconds = false;
		options.verbose = false;
	}

	if (options.compact) {
		options.secondsDecimalDigits = 0;
		options.millisecondsDecimalDigits = 0;
	}

	const result = [];

	const floorDecimals = (value, decimalDigits) =&gt; {
		const flooredInterimValue = Math.floor((value * (10 ** decimalDigits)) + SECOND_ROUNDING_EPSILON);
		const flooredValue = Math.round(flooredInterimValue) / (10 ** decimalDigits);
		return flooredValue.toFixed(decimalDigits);
	};

	const add = (value, long, short, valueString) =&gt; {
		if ((result.length === 0 || !options.colonNotation) &amp;&amp; value === 0 &amp;&amp; !(options.colonNotation &amp;&amp; short === 'm')) {
			return;
		}

		valueString = (valueString || value || '0').toString();
		let prefix;
		let suffix;
		if (options.colonNotation) {
			prefix = result.length &gt; 0 ? ':' : '';
			suffix = '';
			const wholeDigits = valueString.includes('.') ? valueString.split('.')[0].length : valueString.length;
			const minLength = result.length &gt; 0 ? 2 : 1;
			valueString = '0'.repeat(Math.max(0, minLength - wholeDigits)) + valueString;
		} else {
			prefix = '';
			suffix = options.verbose ? ' ' + pluralize(long, value) : short;
		}

		result.push(prefix + valueString + suffix);
	};

	const parsed = parseMilliseconds(milliseconds);

	add(Math.trunc(parsed.days / 365), 'year', 'y');
	add(parsed.days % 365, 'day', 'd');
	add(parsed.hours, 'hour', 'h');
	add(parsed.minutes, 'minute', 'm');

	if (
		options.separateMilliseconds
		|| options.formatSubMilliseconds
		|| (!options.colonNotation &amp;&amp; milliseconds &lt; 1000)
	) {
		add(parsed.seconds, 'second', 's');
		if (options.formatSubMilliseconds) {
			add(parsed.milliseconds, 'millisecond', 'ms');
			add(parsed.microseconds, 'microsecond', 'µs');
			add(parsed.nanoseconds, 'nanosecond', 'ns');
		} else {
			const millisecondsAndBelow
				= parsed.milliseconds
				+ (parsed.microseconds / 1000)
				+ (parsed.nanoseconds / 1e6);

			const millisecondsDecimalDigits
				= typeof options.millisecondsDecimalDigits === 'number'
					? options.millisecondsDecimalDigits
					: 0;

			const roundedMiliseconds = millisecondsAndBelow &gt;= 1
				? Math.round(millisecondsAndBelow)
				: Math.ceil(millisecondsAndBelow);

			const millisecondsString = millisecondsDecimalDigits
				? millisecondsAndBelow.toFixed(millisecondsDecimalDigits)
				: roundedMiliseconds;

			add(
				Number.parseFloat(millisecondsString),
				'millisecond',
				'ms',
				millisecondsString,
			);
		}
	} else {
		const seconds = (milliseconds / 1000) % 60;
		const secondsDecimalDigits
			= typeof options.secondsDecimalDigits === 'number'
				? options.secondsDecimalDigits
				: 1;
		const secondsFixed = floorDecimals(seconds, secondsDecimalDigits);
		const secondsString = options.keepDecimalsOnWholeSeconds
			? secondsFixed
			: secondsFixed.replace(/\.0+$/, '');
		add(Number.parseFloat(secondsString), 'second', 's', secondsString);
	}

	if (result.length === 0) {
		return '0' + (options.verbose ? ' milliseconds' : 'ms');
	}

	if (options.compact) {
		return result[0];
	}

	if (typeof options.unitCount === 'number') {
		const separator = options.colonNotation ? '' : ' ';
		return result.slice(0, Math.max(options.unitCount, 1)).join(separator);
	}

	return options.colonNotation ? result.join('') : result.join(' ');
}

const BYTE_UNITS = [
	'B',
	'kB',
	'MB',
	'GB',
	'TB',
	'PB',
	'EB',
	'ZB',
	'YB',
];

const BIBYTE_UNITS = [
	'B',
	'kiB',
	'MiB',
	'GiB',
	'TiB',
	'PiB',
	'EiB',
	'ZiB',
	'YiB',
];

const BIT_UNITS = [
	'b',
	'kbit',
	'Mbit',
	'Gbit',
	'Tbit',
	'Pbit',
	'Ebit',
	'Zbit',
	'Ybit',
];

const BIBIT_UNITS = [
	'b',
	'kibit',
	'Mibit',
	'Gibit',
	'Tibit',
	'Pibit',
	'Eibit',
	'Zibit',
	'Yibit',
];

/*
Formats the given number using `Number#toLocaleString`.
- If locale is a string, the value is expected to be a locale-key (for example: `de`).
- If locale is true, the system default locale is used for translation.
- If no value for locale is specified, the number is returned unmodified.
*/
const toLocaleString = (number, locale, options) =&gt; {
	let result = number;
	if (typeof locale === 'string' || Array.isArray(locale)) {
		result = number.toLocaleString(locale, options);
	} else if (locale === true || options !== undefined) {
		result = number.toLocaleString(undefined, options);
	}

	return result;
};

function prettyBytes(number, options) {
	if (!Number.isFinite(number)) {
		throw new TypeError(`Expected a finite number, got ${typeof number}: ${number}`);
	}

	options = {
		bits: false,
		binary: false,
		...options,
	};

	const UNITS = options.bits
		? (options.binary ? BIBIT_UNITS : BIT_UNITS)
		: (options.binary ? BIBYTE_UNITS : BYTE_UNITS);

	if (options.signed &amp;&amp; number === 0) {
		return ` 0 ${UNITS[0]}`;
	}

	const isNegative = number &lt; 0;
	const prefix = isNegative ? '-' : (options.signed ? '+' : '');

	if (isNegative) {
		number = -number;
	}

	let localeOptions;

	if (options.minimumFractionDigits !== undefined) {
		localeOptions = {minimumFractionDigits: options.minimumFractionDigits};
	}

	if (options.maximumFractionDigits !== undefined) {
		localeOptions = {maximumFractionDigits: options.maximumFractionDigits, ...localeOptions};
	}

	if (number &lt; 1) {
		const numberString = toLocaleString(number, options.locale, localeOptions);
		return prefix + numberString + ' ' + UNITS[0];
	}

	const exponent = Math.min(Math.floor(options.binary ? Math.log(number) / Math.log(1024) : Math.log10(number) / 3), UNITS.length - 1);
	number /= (options.binary ? 1024 : 1000) ** exponent;

	if (!localeOptions) {
		number = number.toPrecision(3);
	}

	const numberString = toLocaleString(Number(number), options.locale, localeOptions);

	const unit = UNITS[exponent];

	return prefix + numberString + ' ' + unit;
}

function printTimings(timings) {
    for (const [label, [time, memory, total]] of Object.entries(timings)) {
        const appliedColor = label[0] === '#' ? (label[1] === '#' ? rollup.bold : rollup.underline) : (text) =&gt; text;
        const row = `${label}: ${time.toFixed(0)}ms, ${prettyBytes(memory)} / ${prettyBytes(total)}`;
        console.info(appliedColor(row));
    }
}

async function build(inputOptions, warnings, silent = false) {
    const outputOptions = inputOptions.output;
    const useStdout = !outputOptions[0].file &amp;&amp; !outputOptions[0].dir;
    const start = Date.now();
    const files = useStdout ? ['stdout'] : outputOptions.map(t =&gt; rollup.relativeId(t.file || t.dir));
    if (!silent) {
        let inputFiles;
        if (typeof inputOptions.input === 'string') {
            inputFiles = inputOptions.input;
        }
        else if (Array.isArray(inputOptions.input)) {
            inputFiles = inputOptions.input.join(', ');
        }
        else if (typeof inputOptions.input === 'object' &amp;&amp; inputOptions.input !== null) {
            inputFiles = Object.values(inputOptions.input).join(', ');
        }
        rollup.stderr(rollup.cyan(`\n${rollup.bold(inputFiles)} → ${rollup.bold(files.join(', '))}...`));
    }
    const bundle = await rollup.rollup(inputOptions);
    if (useStdout) {
        const output = outputOptions[0];
        if (output.sourcemap &amp;&amp; output.sourcemap !== 'inline') {
            rollup.handleError(rollup.errorOnlyInlineSourcemapsForStdout());
        }
        const { output: outputs } = await bundle.generate(output);
        for (const file of outputs) {
            if (outputs.length &gt; 1)
                process$1.stdout.write(`\n${rollup.cyan(rollup.bold(`//→ ${file.fileName}:`))}\n`);
            process$1.stdout.write(file.type === 'asset' ? file.source : file.code);
        }
        if (!silent) {
            warnings.flush();
        }
        return;
    }
    await Promise.all(outputOptions.map(bundle.write));
    await bundle.close();
    if (!silent) {
        warnings.flush();
        rollup.stderr(rollup.green(`created ${rollup.bold(files.join(', '))} in ${rollup.bold(prettyMilliseconds(Date.now() - start))}`));
        if (bundle &amp;&amp; bundle.getTimings) {
            printTimings(bundle.getTimings());
        }
    }
}

const DEFAULT_CONFIG_BASE = 'rollup.config';
async function getConfigPath(commandConfig) {
    if (commandConfig === true) {
        return node_path.resolve(await findConfigFileNameInCwd());
    }
    if (commandConfig.slice(0, 5) === 'node:') {
        const packageName = commandConfig.slice(5);
        try {
            // eslint-disable-next-line unicorn/prefer-module
            return require.resolve(`rollup-config-${packageName}`, { paths: [process$1.cwd()] });
        }
        catch {
            try {
                // eslint-disable-next-line unicorn/prefer-module
                return require.resolve(packageName, { paths: [process$1.cwd()] });
            }
            catch (error) {
                if (error.code === 'MODULE_NOT_FOUND') {
                    rollup.handleError(rollup.errorMissingExternalConfig(commandConfig));
                }
                throw error;
            }
        }
    }
    return node_path.resolve(commandConfig);
}
async function findConfigFileNameInCwd() {
    const filesInWorkingDirectory = new Set(await promises.readdir(process$1.cwd()));
    for (const extension of ['mjs', 'cjs', 'ts']) {
        const fileName = `${DEFAULT_CONFIG_BASE}.${extension}`;
        if (filesInWorkingDirectory.has(fileName))
            return fileName;
    }
    return `${DEFAULT_CONFIG_BASE}.js`;
}

async function loadConfigFromCommand(command) {
    const warnings = loadConfigFile_js.batchWarnings();
    if (!command.input &amp;&amp; (command.stdin || !process$1.stdin.isTTY)) {
        command.input = loadConfigFile_js.stdinName;
    }
    const options = await rollup.mergeOptions({ input: [] }, command, warnings.add);
    await loadConfigFile_js.addCommandPluginsToInputOptions(options, command);
    return { options: [options], warnings };
}

async function runRollup(command) {
    let inputSource;
    if (command._.length &gt; 0) {
        if (command.input) {
            rollup.handleError(rollup.errorDuplicateImportOptions());
        }
        inputSource = command._;
    }
    else if (typeof command.input === 'string') {
        inputSource = [command.input];
    }
    else {
        inputSource = command.input;
    }
    if (inputSource &amp;&amp; inputSource.length &gt; 0) {
        if (inputSource.some((input) =&gt; input.includes('='))) {
            command.input = {};
            for (const input of inputSource) {
                const equalsIndex = input.indexOf('=');
                const value = input.slice(Math.max(0, equalsIndex + 1));
                const key = input.slice(0, Math.max(0, equalsIndex)) || rollup.getAliasName(input);
                command.input[key] = value;
            }
        }
        else {
            command.input = inputSource;
        }
    }
    if (command.environment) {
        const environment = Array.isArray(command.environment)
            ? command.environment
            : [command.environment];
        for (const argument of environment) {
            for (const pair of argument.split(',')) {
                const [key, ...value] = pair.split(':');
                process$1.env[key] = value.length === 0 ? String(true) : value.join(':');
            }
        }
    }
    if (rollup.isWatchEnabled(command.watch)) {
        await rollup.loadFsEvents();
        const { watch } = await Promise.resolve().then(() =&gt; require('../shared/watch-cli.js'));
        watch(command);
    }
    else {
        try {
            const { options, warnings } = await getConfigs(command);
            try {
                for (const inputOptions of options) {
                    await build(inputOptions, warnings, command.silent);
                }
                if (command.failAfterWarnings &amp;&amp; warnings.warningOccurred) {
                    warnings.flush();
                    rollup.handleError(rollup.errorFailAfterWarnings());
                }
            }
            catch (error) {
                warnings.flush();
                rollup.handleError(error);
            }
        }
        catch (error) {
            rollup.handleError(error);
        }
    }
}
async function getConfigs(command) {
    if (command.config) {
        const configFile = await getConfigPath(command.config);
        const { options, warnings } = await loadConfigFile_js.loadConfigFile(configFile, command);
        return { options, warnings };
    }
    return await loadConfigFromCommand(command);
}

const command = argParser(process$1.argv.slice(2), {
    alias: rollup.commandAliases,
    configuration: { 'camel-case-expansion': false }
});
if (command.help || (process$1.argv.length &lt;= 2 &amp;&amp; process$1.stdin.isTTY)) {
    console.log(`\n${help.replace('__VERSION__', rollup.version)}\n`);
}
else if (command.version) {
    console.log(`rollup v${rollup.version}`);
}
else {
    try {
        // eslint-disable-next-line unicorn/prefer-module
        require('source-map-support').install();
    }
    catch {
        // do nothing
    }
    runRollup(command);
}

exports.getConfigPath = getConfigPath;
exports.loadConfigFromCommand = loadConfigFromCommand;
exports.prettyMilliseconds = prettyMilliseconds;
exports.printTimings = printTimings;
//# sourceMappingURL=rollup.map
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