feat(vanilla): add testing infrastructure and tests (NK-wjnczv)

1 files changed, 1912 insertions, 0 deletions

diff --git a/vanilla/node_modules/rollup/dist/bin/rollup b/vanilla/node_modules/rollup/dist/bin/rollup
new file mode 100755
index 0000000..ff7c631
--- /dev/null
+++ b/vanilla/node_modules/rollup/dist/bin/rollup
@@ -0,0 +1,1912 @@
+#!/usr/bin/env node
+/*
+  @license
+	Rollup.js v4.57.1
+	Fri, 30 Jan 2026 08:13:08 GMT - commit d37675f25150d6a94dcf4138853bdc2ecb3ce57b
+
+	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 parseAst_js = require('../shared/parseAst.js');
+const fseventsImporter = require('../shared/fsevents-importer.js');
+const promises = require('node:fs/promises');
+const path = require('node:path');
+const loadConfigFile_js = require('../shared/loadConfigFile.js');
+require('../native.js');
+require('node:perf_hooks');
+require('node:url');
+require('../getLogFilter.js');
+
+const help = "rollup version 4.57.1\n=====================================\n\nUsage: rollup [options] <entry file>\n\nOptions:\n\n-c, --config <filename>     Use this config file (if argument is used but value\n                 is unspecified, Rollup will try to load configuration files in\n                 the following order:\n                 rollup.config.mjs -> rollup.config.cjs -> rollup.config.js)\n-d, --dir <dirname>         Directory for chunks (if absent, prints to stdout)\n-e, --external <ids>        Comma-separate list of module IDs to exclude\n-f, --format <format>       Type of output (amd, cjs, es, iife, umd, system)\n-g, --globals <pairs>       Comma-separate list of `moduleID:Global` pairs\n-h, --help                  Show this help message\n-i, --input <filename>      Input (alternative to <entry file>)\n-m, --sourcemap             Generate sourcemap (`-m inline` for inline map)\n-n, --name <name>           Name for UMD export\n-o, --file <output>         Single output file (if absent, prints to stdout)\n-p, --plugin <plugin>       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 <prefix>     Path to prepend to auto generated AMD ID\n--amd.define <name>         Function to use in place of `define`\n--amd.forceJsExtensionForImports Use `.js` extension in AMD imports\n--amd.id <id>               ID for AMD module (default is anonymous)\n--assetFileNames <pattern>  Name pattern for emitted assets\n--banner <text>             Code to insert at top of bundle (outside wrapper)\n--chunkFileNames <pattern>  Name pattern for emitted secondary chunks\n--compact                   Minify wrapper code\n--context <variable>        Specify top-level `this` value\n--no-dynamicImportInCjs     Write external dynamic CommonJS imports as require\n--entryFileNames <pattern>  Name pattern for emitted entry chunks\n--environment <values>      Settings passed to config file (see example)\n--no-esModule               Do not add __esModule property\n--exports <mode>            Specify export mode (auto, default, named, none)\n--extend                    Extend global variable defined by --name\n--no-externalImportAttributes Omit import attributes in \"es\" output\n--no-externalLiveBindings   Do not generate code to support live bindings\n--failAfterWarnings         Exit with an error if the build produced warnings\n--filterLogs <filter>       Filter log messages\n--footer <text>             Code to insert at end of bundle (outside wrapper)\n--forceExit                 Force exit the process when done\n--no-freeze                 Do not freeze namespace objects\n--generatedCode <preset>    Which code features to use (es5/es2015)\n--generatedCode.arrowFunctions Use arrow functions in generated code\n--generatedCode.constBindings Use \"const\" 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--hashCharacters <name>     Use the specified character set for file hashes\n--no-hoistTransitiveImports Do not hoist transitive imports into entry chunks\n--importAttributesKey <name> Use the specified keyword for import attributes\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 <text>              Code to insert at top of bundle (inside wrapper)\n--logLevel <level>          Which kind of logs to display\n--no-makeAbsoluteExternalsRelative Prevent normalization of external imports\n--maxParallelFileOps <value> 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 <text>              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-reexportProtoFromExternal Ignore `__proto__` in star re-exports\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 <url>    Emit absolute sourcemap URLs with given base\n--sourcemapDebugIds         Emit unique debug ids in source and sourcemaps\n--sourcemapExcludeSources   Do not include source code in source maps\n--sourcemapFile <file>      Specify bundle position for source maps\n--sourcemapFileNames <pattern> Name pattern for emitted sourcemaps\n--stdin=ext                 Specify file extension used for stdin input\n--no-stdin                  Do not read \"-\" from stdin\n--no-strict                 Don't emit `\"use strict\";` 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 <names> 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.allowInputInsideOutputPath Whether the input path is allowed to be a\n                 subpath of the output path\n--watch.buildDelay <number> Throttle watch rebuilds\n--no-watch.clearScreen      Do not clear the screen when rebuilding\n--watch.exclude <files>     Exclude files from being watched\n--watch.include <files>     Limit watching to specified files\n--watch.onBundleEnd <cmd>   Shell command to run on `\"BUNDLE_END\"` event\n--watch.onBundleStart <cmd> Shell command to run on `\"BUNDLE_START\"` event\n--watch.onEnd <cmd>         Shell command to run on `\"END\"` event\n--watch.onError <cmd>       Shell command to run on `\"ERROR\"` event\n--watch.onStart <cmd>       Shell command to run on `\"START\"` 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";
+
+/**
+ * @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() && str !== str.toUpperCase();
+    if (!isCamelCase) {
+        str = str.toLowerCase();
+    }
+    if (str.indexOf('-') === -1 && str.indexOf('_') === -1) {
+        return str;
+    }
+    else {
+        let camelcase = '';
+        let nextChrUpper = false;
+        const leadingHyphens = str.match(/^-+/);
+        for (let i = leadingHyphens ? leadingHyphens[0].length : 0; i < str.length; i++) {
+            let chr = str.charAt(i);
+            if (nextChrUpper) {
+                nextChrUpper = false;
+                chr = chr.toUpperCase();
+            }
+            if (i !== 0 && (chr === '-' || chr === '_')) {
+                nextChrUpper = true;
+            }
+            else if (chr !== '-' && chr !== '_') {
+                camelcase += chr;
+            }
+        }
+        return camelcase;
+    }
+}
+function decamelize(str, joinString) {
+    const lowercase = str.toLowerCase();
+    joinString = joinString || '-';
+    let notCamelcase = '';
+    for (let i = 0; i < str.length; i++) {
+        const chrLower = lowercase.charAt(i);
+        const chrString = str.charAt(i);
+        if (chrLower !== chrString && i > 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 => 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 < argString.length; ii++) {
+        prevC = c;
+        c = argString.charAt(ii);
+        // split on spaces unless we're in quotes.
+        if (c === ' ' && !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 === "'" || c === '"') && !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["BOOLEAN"] = "boolean";
+    DefaultValuesForTypeKey["STRING"] = "string";
+    DefaultValuesForTypeKey["NUMBER"] = "number";
+    DefaultValuesForTypeKey["ARRAY"] = "array";
+})(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]) => {
+                if (typeof value === 'number') {
+                    flags.nargs[key] = value;
+                    flags.keys.push(key);
+                }
+            });
+        }
+        if (typeof opts.coerce === 'object') {
+            Object.entries(opts.coerce).forEach(([key, value]) => {
+                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]) => {
+                    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 < 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, "--")
+            if (arg !== '--' && /^-/.test(arg) && 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'] && 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 && Array.isArray(m) && m.length >= 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) && configuration['boolean-negation']) {
+                m = arg.match(negatedBoolean);
+                if (m !== null && Array.isArray(m) && m.length >= 2) {
+                    key = m[1];
+                    setArg(key, checkAllAliases(key, flags.arrays) ? [false] : false);
+                }
+                // -- separated by space.
+            }
+            else if (arg.match(/^--.+/) || (!configuration['short-option-groups'] && arg.match(/^-[^-]+/))) {
+                m = arg.match(/^--?(.+)/);
+                if (m !== null && Array.isArray(m) && m.length >= 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 && (!next.match(/^-/) ||
+                            next.match(negative)) &&
+                            !checkAllAliases(key, flags.bools) &&
+                            !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 && Array.isArray(m) && m.length >= 3) {
+                    setArg(m[1], m[2]);
+                }
+                // dot-notation flag separated by space.
+            }
+            else if (arg.match(/^-.\..+/) && !arg.match(negative)) {
+                next = args[i + 1];
+                m = arg.match(/^-(.\..+)/);
+                if (m !== null && Array.isArray(m) && m.length >= 2) {
+                    key = m[1];
+                    if (next !== undefined && !next.match(/^-/) &&
+                        !checkAllAliases(key, flags.bools) &&
+                        !checkAllAliases(key, flags.counts)) {
+                        setArg(key, next);
+                        i++;
+                    }
+                    else {
+                        setArg(key, defaultValue(key));
+                    }
+                }
+            }
+            else if (arg.match(/^-[^-]+/) && !arg.match(negative)) {
+                letters = arg.slice(1, -1).split('');
+                broken = false;
+                for (let j = 0; j < letters.length; j++) {
+                    next = arg.slice(j + 2);
+                    if (letters[j + 1] && 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]) &&
+                        /^-?\d+(\.\d*)?(e-?\d+)?$/.test(next) &&
+                        checkAllAliases(next, flags.bools) === false) {
+                        setArg(letters[j], next);
+                        broken = true;
+                        break;
+                    }
+                    if (letters[j + 1] && 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 && 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 && (!/^(-|--)[^-]/.test(next) ||
+                            next.match(negative)) &&
+                            !checkAllAliases(key, flags.bools) &&
+                            !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]$/) &&
+                arg.match(negative) &&
+                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 && notFlags.length)
+            argv[notFlagsArgv] = [];
+        notFlags.forEach(function (key) {
+            argv[notFlagsArgv].push(key);
+        });
+        if (configuration['camel-case-expansion'] && configuration['strip-dashed']) {
+            Object.keys(argv).filter(key => key !== '--' && key.includes('-')).forEach(key => {
+                delete argv[key];
+            });
+        }
+        if (configuration['strip-aliased']) {
+            [].concat(...Object.keys(aliases).map(k => aliases[k])).forEach(alias => {
+                if (configuration['camel-case-expansion'] && alias.includes('-')) {
+                    delete argv[alias.split('.').map(prop => 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 < 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 < args.length; ii++) {
+                    if (!args[ii].match(/^-[^0-9]/) || args[ii].match(negative) || isUnknownOptionAsArg(args[ii]))
+                        available++;
+                    else
+                        break;
+                }
+                if (available < toEat)
+                    error = Error(__('Not enough arguments following: %s', key));
+            }
+            let consumed = Math.min(available, toEat);
+            if (!isUndefined(argAfterEqualSign) && consumed > 0) {
+                setArg(key, argAfterEqualSign);
+                consumed--;
+            }
+            for (ii = i + 1; ii < (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 ["apple", "banana", "cat"]
+        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) && !(/^(true|false)$/.test(next))) {
+                argsToSet.push(true);
+            }
+            else if (isUndefined(next) ||
+                (isUndefined(argAfterEqualSign) && /^-/.test(next) && !negative.test(next) && !isUnknownOptionAsArg(next))) {
+                // for keys without value ==> 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 < args.length; ii++) {
+                    if ((!configuration['greedy-arrays'] && argsToSet.length > 0) ||
+                        (nargsCount && typeof nargsCount === 'number' && argsToSet.length >= nargsCount))
+                        break;
+                    next = args[ii];
+                    if (/^-/.test(next) && !negative.test(next) && !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' && ((nargsCount && argsToSet.length < nargsCount) ||
+                (isNaN(nargsCount) && 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) && 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 > 1 && 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) && !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] && flags.aliases[key].length)) {
+                flags.aliases[key] = [alias];
+                newAliases[alias] = true;
+            }
+            if (!(flags.aliases[alias] && 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) && (isUndefined(value) || typeof value === 'boolean')) {
+                value = increment();
+            }
+            // Set normalized value when key is in 'normalize' and in 'arrays'
+            if (checkAllAliases(key, flags.normalize) && checkAllAliases(key, flags.arrays)) {
+                if (Array.isArray(val))
+                    value = val.map((val) => { return mixin.normalize(val); });
+                else
+                    value = mixin.normalize(val);
+            }
+            return value;
+        }
+        function maybeCoerceNumber(key, value) {
+            if (!configuration['parse-positional-numbers'] && key === '_')
+                return value;
+            if (!checkAllAliases(key, flags.strings) && !checkAllAliases(key, flags.bools) && !Array.isArray(value)) {
+                const shouldCoerceNumber = looksLikeNumber(value) && configuration['parse-numbers'] && (Number.isSafeInteger(Math.floor(parseFloat(`${value}`))));
+                if (shouldCoerceNumber || (!isUndefined(value) && 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' && value !== null && !Array.isArray(value) && 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) && 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 && flags.configs[keys.join('.')]) || !configOnly) && !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 => {
+                                applied.add(ali);
+                                argv[ali] = value;
+                            });
+                        }
+                        catch (err) {
+                            error = err;
+                        }
+                    }
+                }
+            });
+        }
+        function setPlaceholderKeys(argv) {
+            flags.keys.forEach((key) => {
+                // don't set placeholder keys for dot notation options 'foo.bar'.
+                if (~key.indexOf('.'))
+                    return;
+                if (typeof argv[key] === 'undefined')
+                    argv[key] = undefined;
+            });
+            return argv;
+        }
+        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' && 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 && checkAllAliases(key, flags.nargs)) {
+                duplicate = true;
+                if ((!isUndefined(o[key]) && flags.nargs[key] === 1) || (Array.isArray(o[key]) && 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 && isTypeArray && 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 && Boolean(isTypeArray) === Boolean(isValueArray)) {
+                    o[key] = value;
+                }
+                else {
+                    o[key] = o[key].concat([value]);
+                }
+            }
+            else if (o[key] === undefined && isTypeArray) {
+                o[key] = isValueArray ? value : [value];
+            }
+            else if (duplicate && !(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 "--option-name", also set argv.optionName
+                    flags.aliases[key].concat(key).forEach(function (x) {
+                        if (/-/.test(x) && configuration['camel-case-expansion']) {
+                            const c = camelCase(x);
+                            if (c !== key && flags.aliases[key].indexOf(c) === -1) {
+                                flags.aliases[key].push(c);
+                                newAliases[c] = true;
+                            }
+                        }
+                    });
+                    // For "--optionName", also set argv['option-name']
+                    flags.aliases[key].concat(key).forEach(function (x) {
+                        if (x.length > 1 && /[A-Z]/.test(x) && configuration['camel-case-expansion']) {
+                            const c = decamelize(x, '-');
+                            if (c !== key && 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 => keys.includes(key));
+            return setAlias ? flag[setAlias] : false;
+        }
+        function hasAnyFlag(key) {
+            const flagsKeys = Object.keys(flags);
+            const toCheck = [].concat(flagsKeys.map(k => 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 && 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 < letters.length; j++) {
+                next = arg.slice(j + 2);
+                if (!hasAnyFlag(letters[j])) {
+                    hasAllFlags = false;
+                    break;
+                }
+                if ((letters[j + 1] && letters[j + 1] === '=') ||
+                    next === '-' ||
+                    (/[A-Za-z]/.test(letters[j]) && /^-?\d+(\.\d*)?(e-?\d+)?$/.test(next)) ||
+                    (letters[j + 1] && letters[j + 1].match(/\W/))) {
+                    break;
+                }
+            }
+            return hasAllFlags;
+        }
+        function isUnknownOptionAsArg(arg) {
+            return configuration['unknown-options-as-args'] && 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) &&
+                !checkAllAliases(key, flags.counts) &&
+                `${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 => {
+                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 < aliasArrays.length; i++) {
+            for (let ii = i + 1; ii < 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 && 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' &&
+        (val[0] === "'" || val[0] === '"') &&
+        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 && process.env && 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 && _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 < 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: () => {
+        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) => {
+        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;
+
+/******************************************************************************

+Copyright (c) Microsoft Corporation.

+

+Permission to use, copy, modify, and/or distribute this software for any

+purpose with or without fee is hereby granted.

+

+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH

+REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY

+AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,

+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM

+LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR

+OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR

+PERFORMANCE OF THIS SOFTWARE.

+***************************************************************************** */

+/* global Reflect, Promise, SuppressedError, Symbol, Iterator */

+

+

+function __addDisposableResource(env, value, async) {

+    if (value !== null && value !== void 0) {

+        if (typeof value !== "object" && typeof value !== "function") throw new TypeError("Object expected.");

+        var dispose, inner;

+        if (async) {

+            if (!Symbol.asyncDispose) throw new TypeError("Symbol.asyncDispose is not defined.");

+            dispose = value[Symbol.asyncDispose];

+        }

+        if (dispose === void 0) {

+            if (!Symbol.dispose) throw new TypeError("Symbol.dispose is not defined.");

+            dispose = value[Symbol.dispose];

+            if (async) inner = dispose;

+        }

+        if (typeof dispose !== "function") throw new TypeError("Object not disposable.");

+        if (inner) dispose = function() { try { inner.call(this); } catch (e) { return Promise.reject(e); } };

+        env.stack.push({ value: value, dispose: dispose, async: async });

+    }

+    else if (async) {

+        env.stack.push({ async: true });

+    }

+    return value;

+

+}

+

+var _SuppressedError = typeof SuppressedError === "function" ? SuppressedError : function (error, suppressed, message) {

+    var e = new Error(message);

+    return e.name = "SuppressedError", e.error = error, e.suppressed = suppressed, e;

+};

+

+function __disposeResources(env) {

+    function fail(e) {

+        env.error = env.hasError ? new _SuppressedError(e, env.error, "An error was suppressed during disposal.") : e;

+        env.hasError = true;

+    }

+    var r, s = 0;

+    function next() {

+        while (r = env.stack.pop()) {

+            try {

+                if (!r.async && s === 1) return s = 0, env.stack.push(r), Promise.resolve().then(next);

+                if (r.dispose) {

+                    var result = r.dispose.call(r.value);

+                    if (r.async) return s |= 2, Promise.resolve(result).then(next, function(e) { fail(e); return next(); });

+                }

+                else s |= 1;

+            }

+            catch (e) {

+                fail(e);

+            }

+        }

+        if (s === 1) return env.hasError ? Promise.reject(env.error) : Promise.resolve();

+        if (env.hasError) throw env.error;

+    }

+    return next();

+}
+
+const toZeroIfInfinity = value => Number.isFinite(value) ? value : 0;
+
+function parseNumber(milliseconds) {
+	return {
+		days: Math.trunc(milliseconds / 86_400_000),
+		hours: Math.trunc(milliseconds / 3_600_000 % 24),
+		minutes: Math.trunc(milliseconds / 60_000 % 60),
+		seconds: Math.trunc(milliseconds / 1000 % 60),
+		milliseconds: Math.trunc(milliseconds % 1000),
+		microseconds: Math.trunc(toZeroIfInfinity(milliseconds * 1000) % 1000),
+		nanoseconds: Math.trunc(toZeroIfInfinity(milliseconds * 1e6) % 1000),
+	};
+}
+
+function parseBigint(milliseconds) {
+	return {
+		days: milliseconds / 86_400_000n,
+		hours: milliseconds / 3_600_000n % 24n,
+		minutes: milliseconds / 60_000n % 60n,
+		seconds: milliseconds / 1000n % 60n,
+		milliseconds: milliseconds % 1000n,
+		microseconds: 0n,
+		nanoseconds: 0n,
+	};
+}
+
+function parseMilliseconds(milliseconds) {
+	switch (typeof milliseconds) {
+		case 'number': {
+			if (Number.isFinite(milliseconds)) {
+				return parseNumber(milliseconds);
+			}
+
+			break;
+		}
+
+		case 'bigint': {
+			return parseBigint(milliseconds);
+		}
+
+		// No default
+	}
+
+	throw new TypeError('Expected a finite number or bigint');
+}
+
+const isZero = value => value === 0 || value === 0n;
+const pluralize = (word, count) => (count === 1 || count === 1n) ? word : `${word}s`;
+
+const SECOND_ROUNDING_EPSILON = 0.000_000_1;
+const ONE_DAY_IN_MILLISECONDS = 24n * 60n * 60n * 1000n;
+
+function prettyMilliseconds(milliseconds, options) {
+	const isBigInt = typeof milliseconds === 'bigint';
+	if (!isBigInt && !Number.isFinite(milliseconds)) {
+		throw new TypeError('Expected a finite number or bigint');
+	}
+
+	options = {...options};
+
+	const sign = milliseconds < 0 ? '-' : '';
+	milliseconds = milliseconds < 0 ? -milliseconds : milliseconds; // Cannot use `Math.abs()` because of BigInt support.
+
+	if (options.colonNotation) {
+		options.compact = false;
+		options.formatSubMilliseconds = false;
+		options.separateMilliseconds = false;
+		options.verbose = false;
+	}
+
+	if (options.compact) {
+		options.unitCount = 1;
+		options.secondsDecimalDigits = 0;
+		options.millisecondsDecimalDigits = 0;
+	}
+
+	let result = [];
+
+	const floorDecimals = (value, decimalDigits) => {
+		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) => {
+		if (
+			(result.length === 0 || !options.colonNotation)
+			&& isZero(value)
+			&& !(options.colonNotation && short === 'm')) {
+			return;
+		}
+
+		valueString ??= String(value);
+		if (options.colonNotation) {
+			const wholeDigits = valueString.includes('.') ? valueString.split('.')[0].length : valueString.length;
+			const minLength = result.length > 0 ? 2 : 1;
+			valueString = '0'.repeat(Math.max(0, minLength - wholeDigits)) + valueString;
+		} else {
+			valueString += options.verbose ? ' ' + pluralize(long, value) : short;
+		}
+
+		result.push(valueString);
+	};
+
+	const parsed = parseMilliseconds(milliseconds);
+	const days = BigInt(parsed.days);
+
+	if (options.hideYearAndDays) {
+		add((BigInt(days) * 24n) + BigInt(parsed.hours), 'hour', 'h');
+	} else {
+		if (options.hideYear) {
+			add(days, 'day', 'd');
+		} else {
+			add(days / 365n, 'year', 'y');
+			add(days % 365n, 'day', 'd');
+		}
+
+		add(Number(parsed.hours), 'hour', 'h');
+	}
+
+	add(Number(parsed.minutes), 'minute', 'm');
+
+	if (!options.hideSeconds) {
+		if (
+			options.separateMilliseconds
+			|| options.formatSubMilliseconds
+			|| (!options.colonNotation && milliseconds < 1000 && !options.subSecondsAsDecimals)
+		) {
+			const seconds = Number(parsed.seconds);
+			const milliseconds = Number(parsed.milliseconds);
+			const microseconds = Number(parsed.microseconds);
+			const nanoseconds = Number(parsed.nanoseconds);
+
+			add(seconds, 'second', 's');
+
+			if (options.formatSubMilliseconds) {
+				add(milliseconds, 'millisecond', 'ms');
+				add(microseconds, 'microsecond', 'µs');
+				add(nanoseconds, 'nanosecond', 'ns');
+			} else {
+				const millisecondsAndBelow
+					= milliseconds
+					+ (microseconds / 1000)
+					+ (nanoseconds / 1e6);
+
+				const millisecondsDecimalDigits
+					= typeof options.millisecondsDecimalDigits === 'number'
+						? options.millisecondsDecimalDigits
+						: 0;
+
+				const roundedMilliseconds = millisecondsAndBelow >= 1
+					? Math.round(millisecondsAndBelow)
+					: Math.ceil(millisecondsAndBelow);
+
+				const millisecondsString = millisecondsDecimalDigits
+					? millisecondsAndBelow.toFixed(millisecondsDecimalDigits)
+					: roundedMilliseconds;
+
+				add(
+					Number.parseFloat(millisecondsString),
+					'millisecond',
+					'ms',
+					millisecondsString,
+				);
+			}
+		} else {
+			const seconds = (
+				(isBigInt ? Number(milliseconds % ONE_DAY_IN_MILLISECONDS) : 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 sign + '0' + (options.verbose ? ' milliseconds' : 'ms');
+	}
+
+	const separator = options.colonNotation ? ':' : ' ';
+	if (typeof options.unitCount === 'number') {
+		result = result.slice(0, Math.max(options.unitCount, 1));
+	}
+
+	return sign + result.join(separator);
+}
+
+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) => {
+	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;
+};
+
+const log10 = numberOrBigInt => {
+	if (typeof numberOrBigInt === 'number') {
+		return Math.log10(numberOrBigInt);
+	}
+
+	const string = numberOrBigInt.toString(10);
+
+	return string.length + Math.log10(`0.${string.slice(0, 15)}`);
+};
+
+const log = numberOrBigInt => {
+	if (typeof numberOrBigInt === 'number') {
+		return Math.log(numberOrBigInt);
+	}
+
+	return log10(numberOrBigInt) * Math.log(10);
+};
+
+const divide = (numberOrBigInt, divisor) => {
+	if (typeof numberOrBigInt === 'number') {
+		return numberOrBigInt / divisor;
+	}
+
+	const integerPart = numberOrBigInt / BigInt(divisor);
+	const remainder = numberOrBigInt % BigInt(divisor);
+	return Number(integerPart) + (Number(remainder) / divisor);
+};
+
+const applyFixedWidth = (result, fixedWidth) => {
+	if (fixedWidth === undefined) {
+		return result;
+	}
+
+	if (typeof fixedWidth !== 'number' || !Number.isSafeInteger(fixedWidth) || fixedWidth < 0) {
+		throw new TypeError(`Expected fixedWidth to be a non-negative integer, got ${typeof fixedWidth}: ${fixedWidth}`);
+	}
+
+	if (fixedWidth === 0) {
+		return result;
+	}
+
+	return result.length < fixedWidth ? result.padStart(fixedWidth, ' ') : result;
+};
+
+const buildLocaleOptions = options => {
+	const {minimumFractionDigits, maximumFractionDigits} = options;
+
+	if (minimumFractionDigits === undefined && maximumFractionDigits === undefined) {
+		return undefined;
+	}
+
+	return {
+		...(minimumFractionDigits !== undefined && {minimumFractionDigits}),
+		...(maximumFractionDigits !== undefined && {maximumFractionDigits}),
+		roundingMode: 'trunc',
+	};
+};
+
+function prettyBytes(number, options) {
+	if (typeof number !== 'bigint' && !Number.isFinite(number)) {
+		throw new TypeError(`Expected a finite number, got ${typeof number}: ${number}`);
+	}
+
+	options = {
+		bits: false,
+		binary: false,
+		space: true,
+		nonBreakingSpace: false,
+		...options,
+	};
+
+	const UNITS = options.bits
+		? (options.binary ? BIBIT_UNITS : BIT_UNITS)
+		: (options.binary ? BIBYTE_UNITS : BYTE_UNITS);
+
+	const separator = options.space ? (options.nonBreakingSpace ? '\u00A0' : ' ') : '';
+
+	// Handle signed zero case
+	const isZero = typeof number === 'number' ? number === 0 : number === 0n;
+	if (options.signed && isZero) {
+		const result = ` 0${separator}${UNITS[0]}`;
+		return applyFixedWidth(result, options.fixedWidth);
+	}
+
+	const isNegative = number < 0;
+	const prefix = isNegative ? '-' : (options.signed ? '+' : '');
+
+	if (isNegative) {
+		number = -number;
+	}
+
+	const localeOptions = buildLocaleOptions(options);
+	let result;
+
+	if (number < 1) {
+		const numberString = toLocaleString(number, options.locale, localeOptions);
+		result = prefix + numberString + separator + UNITS[0];
+	} else {
+		const exponent = Math.min(Math.floor(options.binary ? log(number) / Math.log(1024) : log10(number) / 3), UNITS.length - 1);
+		number = divide(number, (options.binary ? 1024 : 1000) ** exponent);
+
+		if (!localeOptions) {
+			const minPrecision = Math.max(3, Math.floor(number).toString().length);
+			number = number.toPrecision(minPrecision);
+		}
+
+		const numberString = toLocaleString(Number(number), options.locale, localeOptions);
+		const unit = UNITS[exponent];
+		result = prefix + numberString + separator + unit;
+	}
+
+	return applyFixedWidth(result, options.fixedWidth);
+}
+
+function printTimings(timings) {
+    for (const [label, [time, memory, total]] of Object.entries(timings)) {
+        const appliedColor = label[0] === '#' ? (label[1] === '#' ? rollup.bold : rollup.underline) : (text) => text;
+        const row = `${label}: ${time.toFixed(0)}ms, ${prettyBytes(memory)} / ${prettyBytes(total)}`;
+        console.info(appliedColor(row));
+    }
+}
+
+async function build(inputOptions, warnings, silent = false) {
+    const env_1 = { stack: [], error: void 0, hasError: false };
+    try {
+        const outputOptions = inputOptions.output;
+        const useStdout = !outputOptions[0].file && !outputOptions[0].dir;
+        const start = Date.now();
+        const files = useStdout ? ['stdout'] : outputOptions.map(t => parseAst_js.relativeId(t.file || t.dir));
+        if (!silent) {
+            let inputFiles;
+            if (typeof inputOptions.input === 'string') {
+                inputFiles = inputOptions.input;
+            }
+            else if (Array.isArray(inputOptions.input)) {
+                inputFiles = inputOptions.input.join(', ');
+            }
+            else if (typeof inputOptions.input === 'object' && inputOptions.input !== null) {
+                inputFiles = Object.values(inputOptions.input).join(', ');
+            }
+            rollup.stderr(rollup.cyan(`\n${rollup.bold(inputFiles)} → ${rollup.bold(files.join(', '))}...`));
+        }
+        const bundle = __addDisposableResource(env_1, await rollup.rollup(inputOptions), true);
+        if (useStdout) {
+            const output = outputOptions[0];
+            if (output.sourcemap && output.sourcemap !== 'inline') {
+                rollup.handleError(parseAst_js.logOnlyInlineSourcemapsForStdout());
+            }
+            const { output: outputs } = await bundle.generate(output);
+            for (const file of outputs) {
+                if (outputs.length > 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));
+        if (!silent) {
+            warnings.flush();
+            rollup.stderr(rollup.green(`created ${rollup.bold(files.join(', '))} in ${rollup.bold(prettyMilliseconds(Date.now() - start))}`));
+            if (bundle && bundle.getTimings) {
+                printTimings(bundle.getTimings());
+            }
+        }
+    }
+    catch (e_1) {
+        env_1.error = e_1;
+        env_1.hasError = true;
+    }
+    finally {
+        const result_1 = __disposeResources(env_1);
+        if (result_1)
+            await result_1;
+    }
+}
+
+const DEFAULT_CONFIG_BASE = 'rollup.config';
+async function getConfigPath(commandConfig) {
+    if (commandConfig === true) {
+        return path.resolve(await findConfigFileNameInCwd());
+    }
+    if (commandConfig.slice(0, 5) === 'node:') {
+        const packageName = commandConfig.slice(5);
+        try {
+            return require.resolve(`rollup-config-${packageName}`, { paths: [process$1.cwd()] });
+        }
+        catch {
+            try {
+                return require.resolve(packageName, { paths: [process$1.cwd()] });
+            }
+            catch (error) {
+                if (error.code === 'MODULE_NOT_FOUND') {
+                    rollup.handleError(parseAst_js.logMissingExternalConfig(commandConfig));
+                }
+                throw error;
+            }
+        }
+    }
+    return 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(commandOptions, watchMode) {
+    const warnings = loadConfigFile_js.batchWarnings(commandOptions);
+    if (!commandOptions.input && (commandOptions.stdin || !process$1.stdin.isTTY)) {
+        commandOptions.input = loadConfigFile_js.stdinName;
+    }
+    const options = await rollup.mergeOptions({ input: [] }, watchMode, commandOptions, warnings.log);
+    await loadConfigFile_js.addCommandPluginsToInputOptions(options, commandOptions);
+    return { options: [options], warnings };
+}
+
+async function runRollup(command) {
+    let inputSource;
+    if (command._.length > 0) {
+        if (command.input) {
+            rollup.handleError(parseAst_js.logDuplicateImportOptions());
+        }
+        inputSource = command._;
+    }
+    else if (typeof command.input === 'string') {
+        inputSource = [command.input];
+    }
+    else {
+        inputSource = command.input;
+    }
+    if (inputSource && inputSource.length > 0) {
+        if (inputSource.some((input) => 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)) || parseAst_js.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 fseventsImporter.loadFsEvents();
+        const { watch } = await Promise.resolve().then(() => require('../shared/watch-cli.js'));
+        await watch(command);
+    }
+    else {
+        try {
+            const { options, warnings } = await getConfigs(command);
+            try {
+                for (const inputOptions of options) {
+                    if (!inputOptions.cache) {
+                        // We explicitly disable the cache when unused as the CLI will not
+                        // use the cache object on the bundle when not in watch mode. This
+                        // improves performance as the cache is not generated.
+                        inputOptions.cache = false;
+                    }
+                    await build(inputOptions, warnings, command.silent);
+                }
+                if (command.failAfterWarnings && warnings.warningOccurred) {
+                    warnings.flush();
+                    rollup.handleError(parseAst_js.logFailAfterWarnings());
+                }
+            }
+            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, false);
+        return { options, warnings };
+    }
+    return await loadConfigFromCommand(command, false);
+}
+
+const command = yargsParser(process$1.argv.slice(2), {
+    alias: rollup.commandAliases,
+    configuration: { 'camel-case-expansion': false }
+});
+if (command.help || (process$1.argv.length <= 2 && process$1.stdin.isTTY)) {
+    console.log(`\n${help}\n`);
+}
+else if (command.version) {
+    console.log(`rollup v${rollup.version}`);
+}
+else {
+    try {
+        // eslint-disable-next-line @typescript-eslint/no-require-imports
+        require('source-map-support').install();
+    }
+    catch {
+        // do nothing
+    }
+    const promise = runRollup(command);
+    if (command.forceExit) {
+        promise.then(() => process$1.exit());
+    }
+}
+
+exports.getConfigPath = getConfigPath;
+exports.loadConfigFromCommand = loadConfigFromCommand;
+exports.prettyMilliseconds = prettyMilliseconds;
+exports.printTimings = printTimings;
+//# sourceMappingURL=rollup.map