Initial import with skill sheet working

node_modules/@eslint/eslintrc/lib/shared/ajv.js

@@ -0,0 +1,191 @@
+/**
+ * @fileoverview The instance of Ajv validator.
+ * @author Evgeny Poberezkin
+ */
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+import Ajv from "ajv";
+
+//-----------------------------------------------------------------------------
+// Helpers
+//-----------------------------------------------------------------------------
+
+/*
+ * Copied from ajv/lib/refs/json-schema-draft-04.json
+ * The MIT License (MIT)
+ * Copyright (c) 2015-2017 Evgeny Poberezkin
+ */
+const metaSchema = {
+    id: "http://json-schema.org/draft-04/schema#",
+    $schema: "http://json-schema.org/draft-04/schema#",
+    description: "Core schema meta-schema",
+    definitions: {
+        schemaArray: {
+            type: "array",
+            minItems: 1,
+            items: { $ref: "#" }
+        },
+        positiveInteger: {
+            type: "integer",
+            minimum: 0
+        },
+        positiveIntegerDefault0: {
+            allOf: [{ $ref: "#/definitions/positiveInteger" }, { default: 0 }]
+        },
+        simpleTypes: {
+            enum: ["array", "boolean", "integer", "null", "number", "object", "string"]
+        },
+        stringArray: {
+            type: "array",
+            items: { type: "string" },
+            minItems: 1,
+            uniqueItems: true
+        }
+    },
+    type: "object",
+    properties: {
+        id: {
+            type: "string"
+        },
+        $schema: {
+            type: "string"
+        },
+        title: {
+            type: "string"
+        },
+        description: {
+            type: "string"
+        },
+        default: { },
+        multipleOf: {
+            type: "number",
+            minimum: 0,
+            exclusiveMinimum: true
+        },
+        maximum: {
+            type: "number"
+        },
+        exclusiveMaximum: {
+            type: "boolean",
+            default: false
+        },
+        minimum: {
+            type: "number"
+        },
+        exclusiveMinimum: {
+            type: "boolean",
+            default: false
+        },
+        maxLength: { $ref: "#/definitions/positiveInteger" },
+        minLength: { $ref: "#/definitions/positiveIntegerDefault0" },
+        pattern: {
+            type: "string",
+            format: "regex"
+        },
+        additionalItems: {
+            anyOf: [
+                { type: "boolean" },
+                { $ref: "#" }
+            ],
+            default: { }
+        },
+        items: {
+            anyOf: [
+                { $ref: "#" },
+                { $ref: "#/definitions/schemaArray" }
+            ],
+            default: { }
+        },
+        maxItems: { $ref: "#/definitions/positiveInteger" },
+        minItems: { $ref: "#/definitions/positiveIntegerDefault0" },
+        uniqueItems: {
+            type: "boolean",
+            default: false
+        },
+        maxProperties: { $ref: "#/definitions/positiveInteger" },
+        minProperties: { $ref: "#/definitions/positiveIntegerDefault0" },
+        required: { $ref: "#/definitions/stringArray" },
+        additionalProperties: {
+            anyOf: [
+                { type: "boolean" },
+                { $ref: "#" }
+            ],
+            default: { }
+        },
+        definitions: {
+            type: "object",
+            additionalProperties: { $ref: "#" },
+            default: { }
+        },
+        properties: {
+            type: "object",
+            additionalProperties: { $ref: "#" },
+            default: { }
+        },
+        patternProperties: {
+            type: "object",
+            additionalProperties: { $ref: "#" },
+            default: { }
+        },
+        dependencies: {
+            type: "object",
+            additionalProperties: {
+                anyOf: [
+                    { $ref: "#" },
+                    { $ref: "#/definitions/stringArray" }
+                ]
+            }
+        },
+        enum: {
+            type: "array",
+            minItems: 1,
+            uniqueItems: true
+        },
+        type: {
+            anyOf: [
+                { $ref: "#/definitions/simpleTypes" },
+                {
+                    type: "array",
+                    items: { $ref: "#/definitions/simpleTypes" },
+                    minItems: 1,
+                    uniqueItems: true
+                }
+            ]
+        },
+        format: { type: "string" },
+        allOf: { $ref: "#/definitions/schemaArray" },
+        anyOf: { $ref: "#/definitions/schemaArray" },
+        oneOf: { $ref: "#/definitions/schemaArray" },
+        not: { $ref: "#" }
+    },
+    dependencies: {
+        exclusiveMaximum: ["maximum"],
+        exclusiveMinimum: ["minimum"]
+    },
+    default: { }
+};
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+export default (additionalOptions = {}) => {
+    const ajv = new Ajv({
+        meta: false,
+        useDefaults: true,
+        validateSchema: false,
+        missingRefs: "ignore",
+        verbose: true,
+        schemaId: "auto",
+        ...additionalOptions
+    });
+
+    ajv.addMetaSchema(metaSchema);
+    // eslint-disable-next-line no-underscore-dangle
+    ajv._opts.defaultMeta = metaSchema.id;
+
+    return ajv;
+};

node_modules/@eslint/eslintrc/lib/shared/config-ops.js

@@ -0,0 +1,135 @@
+/**
+ * @fileoverview Config file operations. This file must be usable in the browser,
+ * so no Node-specific code can be here.
+ * @author Nicholas C. Zakas
+ */
+
+//------------------------------------------------------------------------------
+// Private
+//------------------------------------------------------------------------------
+
+const RULE_SEVERITY_STRINGS = ["off", "warn", "error"],
+    RULE_SEVERITY = RULE_SEVERITY_STRINGS.reduce((map, value, index) => {
+        map[value] = index;
+        return map;
+    }, {}),
+    VALID_SEVERITIES = [0, 1, 2, "off", "warn", "error"];
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+/**
+ * Normalizes the severity value of a rule's configuration to a number
+ * @param {(number|string|[number, ...*]|[string, ...*])} ruleConfig A rule's configuration value, generally
+ * received from the user. A valid config value is either 0, 1, 2, the string "off" (treated the same as 0),
+ * the string "warn" (treated the same as 1), the string "error" (treated the same as 2), or an array
+ * whose first element is one of the above values. Strings are matched case-insensitively.
+ * @returns {(0|1|2)} The numeric severity value if the config value was valid, otherwise 0.
+ */
+function getRuleSeverity(ruleConfig) {
+    const severityValue = Array.isArray(ruleConfig) ? ruleConfig[0] : ruleConfig;
+
+    if (severityValue === 0 || severityValue === 1 || severityValue === 2) {
+        return severityValue;
+    }
+
+    if (typeof severityValue === "string") {
+        return RULE_SEVERITY[severityValue.toLowerCase()] || 0;
+    }
+
+    return 0;
+}
+
+/**
+ * Converts old-style severity settings (0, 1, 2) into new-style
+ * severity settings (off, warn, error) for all rules. Assumption is that severity
+ * values have already been validated as correct.
+ * @param {Object} config The config object to normalize.
+ * @returns {void}
+ */
+function normalizeToStrings(config) {
+
+    if (config.rules) {
+        Object.keys(config.rules).forEach(ruleId => {
+            const ruleConfig = config.rules[ruleId];
+
+            if (typeof ruleConfig === "number") {
+                config.rules[ruleId] = RULE_SEVERITY_STRINGS[ruleConfig] || RULE_SEVERITY_STRINGS[0];
+            } else if (Array.isArray(ruleConfig) && typeof ruleConfig[0] === "number") {
+                ruleConfig[0] = RULE_SEVERITY_STRINGS[ruleConfig[0]] || RULE_SEVERITY_STRINGS[0];
+            }
+        });
+    }
+}
+
+/**
+ * Determines if the severity for the given rule configuration represents an error.
+ * @param {int|string|Array} ruleConfig The configuration for an individual rule.
+ * @returns {boolean} True if the rule represents an error, false if not.
+ */
+function isErrorSeverity(ruleConfig) {
+    return getRuleSeverity(ruleConfig) === 2;
+}
+
+/**
+ * Checks whether a given config has valid severity or not.
+ * @param {number|string|Array} ruleConfig The configuration for an individual rule.
+ * @returns {boolean} `true` if the configuration has valid severity.
+ */
+function isValidSeverity(ruleConfig) {
+    let severity = Array.isArray(ruleConfig) ? ruleConfig[0] : ruleConfig;
+
+    if (typeof severity === "string") {
+        severity = severity.toLowerCase();
+    }
+    return VALID_SEVERITIES.indexOf(severity) !== -1;
+}
+
+/**
+ * Checks whether every rule of a given config has valid severity or not.
+ * @param {Object} config The configuration for rules.
+ * @returns {boolean} `true` if the configuration has valid severity.
+ */
+function isEverySeverityValid(config) {
+    return Object.keys(config).every(ruleId => isValidSeverity(config[ruleId]));
+}
+
+/**
+ * Normalizes a value for a global in a config
+ * @param {(boolean|string|null)} configuredValue The value given for a global in configuration or in
+ * a global directive comment
+ * @returns {("readable"|"writeable"|"off")} The value normalized as a string
+ * @throws Error if global value is invalid
+ */
+function normalizeConfigGlobal(configuredValue) {
+    switch (configuredValue) {
+        case "off":
+            return "off";
+
+        case true:
+        case "true":
+        case "writeable":
+        case "writable":
+            return "writable";
+
+        case null:
+        case false:
+        case "false":
+        case "readable":
+        case "readonly":
+            return "readonly";
+
+        default:
+            throw new Error(`'${configuredValue}' is not a valid configuration for a global (use 'readonly', 'writable', or 'off')`);
+    }
+}
+
+export {
+    getRuleSeverity,
+    normalizeToStrings,
+    isErrorSeverity,
+    isValidSeverity,
+    isEverySeverityValid,
+    normalizeConfigGlobal
+};

node_modules/@eslint/eslintrc/lib/shared/config-validator.js

@@ -0,0 +1,374 @@
+/**
+ * @fileoverview Validates configs.
+ * @author Brandon Mills
+ */
+
+/* eslint class-methods-use-this: "off" */
+
+//------------------------------------------------------------------------------
+// Typedefs
+//------------------------------------------------------------------------------
+
+/** @typedef {import("../shared/types").Rule} Rule */
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+import util from "util";
+import * as ConfigOps from "./config-ops.js";
+import { emitDeprecationWarning } from "./deprecation-warnings.js";
+import ajvOrig from "./ajv.js";
+import { deepMergeArrays } from "./deep-merge-arrays.js";
+import configSchema from "../../conf/config-schema.js";
+import BuiltInEnvironments from "../../conf/environments.js";
+
+const ajv = ajvOrig();
+
+const ruleValidators = new WeakMap();
+const noop = Function.prototype;
+
+//------------------------------------------------------------------------------
+// Private
+//------------------------------------------------------------------------------
+let validateSchema;
+const severityMap = {
+    error: 2,
+    warn: 1,
+    off: 0
+};
+
+const validated = new WeakSet();
+
+// JSON schema that disallows passing any options
+const noOptionsSchema = Object.freeze({
+    type: "array",
+    minItems: 0,
+    maxItems: 0
+});
+
+//-----------------------------------------------------------------------------
+// Exports
+//-----------------------------------------------------------------------------
+
+export default class ConfigValidator {
+    constructor({ builtInRules = new Map() } = {}) {
+        this.builtInRules = builtInRules;
+    }
+
+    /**
+     * Gets a complete options schema for a rule.
+     * @param {Rule} rule A rule object
+     * @throws {TypeError} If `meta.schema` is specified but is not an array, object or `false`.
+     * @returns {Object|null} JSON Schema for the rule's options.
+     *      `null` if rule wasn't passed or its `meta.schema` is `false`.
+     */
+    getRuleOptionsSchema(rule) {
+        if (!rule) {
+            return null;
+        }
+
+        if (!rule.meta) {
+            return { ...noOptionsSchema }; // default if `meta.schema` is not specified
+        }
+
+        const schema = rule.meta.schema;
+
+        if (typeof schema === "undefined") {
+            return { ...noOptionsSchema }; // default if `meta.schema` is not specified
+        }
+
+        // `schema:false` is an allowed explicit opt-out of options validation for the rule
+        if (schema === false) {
+            return null;
+        }
+
+        if (typeof schema !== "object" || schema === null) {
+            throw new TypeError("Rule's `meta.schema` must be an array or object");
+        }
+
+        // ESLint-specific array form needs to be converted into a valid JSON Schema definition
+        if (Array.isArray(schema)) {
+            if (schema.length) {
+                return {
+                    type: "array",
+                    items: schema,
+                    minItems: 0,
+                    maxItems: schema.length
+                };
+            }
+
+            // `schema:[]` is an explicit way to specify that the rule does not accept any options
+            return { ...noOptionsSchema };
+        }
+
+        // `schema:<object>` is assumed to be a valid JSON Schema definition
+        return schema;
+    }
+
+    /**
+     * Validates a rule's severity and returns the severity value. Throws an error if the severity is invalid.
+     * @param {options} options The given options for the rule.
+     * @returns {number|string} The rule's severity value
+     */
+    validateRuleSeverity(options) {
+        const severity = Array.isArray(options) ? options[0] : options;
+        const normSeverity = typeof severity === "string" ? severityMap[severity.toLowerCase()] : severity;
+
+        if (normSeverity === 0 || normSeverity === 1 || normSeverity === 2) {
+            return normSeverity;
+        }
+
+        throw new Error(`\tSeverity should be one of the following: 0 = off, 1 = warn, 2 = error (you passed '${util.inspect(severity).replace(/'/gu, "\"").replace(/\n/gu, "")}').\n`);
+
+    }
+
+    /**
+     * Validates the non-severity options passed to a rule, based on its schema.
+     * @param {{create: Function}} rule The rule to validate
+     * @param {Array} localOptions The options for the rule, excluding severity
+     * @returns {void}
+     */
+    validateRuleSchema(rule, localOptions) {
+        if (!ruleValidators.has(rule)) {
+            try {
+                const schema = this.getRuleOptionsSchema(rule);
+
+                if (schema) {
+                    ruleValidators.set(rule, ajv.compile(schema));
+                }
+            } catch (err) {
+                const errorWithCode = new Error(err.message, { cause: err });
+
+                errorWithCode.code = "ESLINT_INVALID_RULE_OPTIONS_SCHEMA";
+
+                throw errorWithCode;
+            }
+        }
+
+        const validateRule = ruleValidators.get(rule);
+
+        if (validateRule) {
+            const mergedOptions = deepMergeArrays(rule.meta?.defaultOptions, localOptions);
+
+            validateRule(mergedOptions);
+
+            if (validateRule.errors) {
+                throw new Error(validateRule.errors.map(
+                    error => `\tValue ${JSON.stringify(error.data)} ${error.message}.\n`
+                ).join(""));
+            }
+        }
+    }
+
+    /**
+     * Validates a rule's options against its schema.
+     * @param {{create: Function}|null} rule The rule that the config is being validated for
+     * @param {string} ruleId The rule's unique name.
+     * @param {Array|number} options The given options for the rule.
+     * @param {string|null} source The name of the configuration source to report in any errors. If null or undefined,
+     * no source is prepended to the message.
+     * @returns {void}
+     */
+    validateRuleOptions(rule, ruleId, options, source = null) {
+        try {
+            const severity = this.validateRuleSeverity(options);
+
+            if (severity !== 0) {
+                this.validateRuleSchema(rule, Array.isArray(options) ? options.slice(1) : []);
+            }
+        } catch (err) {
+            let enhancedMessage = err.code === "ESLINT_INVALID_RULE_OPTIONS_SCHEMA"
+                ? `Error while processing options validation schema of rule '${ruleId}': ${err.message}`
+                : `Configuration for rule "${ruleId}" is invalid:\n${err.message}`;
+
+            if (typeof source === "string") {
+                enhancedMessage = `${source}:\n\t${enhancedMessage}`;
+            }
+
+            const enhancedError = new Error(enhancedMessage, { cause: err });
+
+            if (err.code) {
+                enhancedError.code = err.code;
+            }
+
+            throw enhancedError;
+        }
+    }
+
+    /**
+     * Validates an environment object
+     * @param {Object} environment The environment config object to validate.
+     * @param {string} source The name of the configuration source to report in any errors.
+     * @param {function(envId:string): Object} [getAdditionalEnv] A map from strings to loaded environments.
+     * @returns {void}
+     */
+    validateEnvironment(
+        environment,
+        source,
+        getAdditionalEnv = noop
+    ) {
+
+        // not having an environment is ok
+        if (!environment) {
+            return;
+        }
+
+        Object.keys(environment).forEach(id => {
+            const env = getAdditionalEnv(id) || BuiltInEnvironments.get(id) || null;
+
+            if (!env) {
+                const message = `${source}:\n\tEnvironment key "${id}" is unknown\n`;
+
+                throw new Error(message);
+            }
+        });
+    }
+
+    /**
+     * Validates a rules config object
+     * @param {Object} rulesConfig The rules config object to validate.
+     * @param {string} source The name of the configuration source to report in any errors.
+     * @param {function(ruleId:string): Object} getAdditionalRule A map from strings to loaded rules
+     * @returns {void}
+     */
+    validateRules(
+        rulesConfig,
+        source,
+        getAdditionalRule = noop
+    ) {
+        if (!rulesConfig) {
+            return;
+        }
+
+        Object.keys(rulesConfig).forEach(id => {
+            const rule = getAdditionalRule(id) || this.builtInRules.get(id) || null;
+
+            this.validateRuleOptions(rule, id, rulesConfig[id], source);
+        });
+    }
+
+    /**
+     * Validates a `globals` section of a config file
+     * @param {Object} globalsConfig The `globals` section
+     * @param {string|null} source The name of the configuration source to report in the event of an error.
+     * @returns {void}
+     */
+    validateGlobals(globalsConfig, source = null) {
+        if (!globalsConfig) {
+            return;
+        }
+
+        Object.entries(globalsConfig)
+            .forEach(([configuredGlobal, configuredValue]) => {
+                try {
+                    ConfigOps.normalizeConfigGlobal(configuredValue);
+                } catch (err) {
+                    throw new Error(`ESLint configuration of global '${configuredGlobal}' in ${source} is invalid:\n${err.message}`);
+                }
+            });
+    }
+
+    /**
+     * Validate `processor` configuration.
+     * @param {string|undefined} processorName The processor name.
+     * @param {string} source The name of config file.
+     * @param {function(id:string): Processor} getProcessor The getter of defined processors.
+     * @returns {void}
+     */
+    validateProcessor(processorName, source, getProcessor) {
+        if (processorName && !getProcessor(processorName)) {
+            throw new Error(`ESLint configuration of processor in '${source}' is invalid: '${processorName}' was not found.`);
+        }
+    }
+
+    /**
+     * Formats an array of schema validation errors.
+     * @param {Array} errors An array of error messages to format.
+     * @returns {string} Formatted error message
+     */
+    formatErrors(errors) {
+        return errors.map(error => {
+            if (error.keyword === "additionalProperties") {
+                const formattedPropertyPath = error.dataPath.length ? `${error.dataPath.slice(1)}.${error.params.additionalProperty}` : error.params.additionalProperty;
+
+                return `Unexpected top-level property "${formattedPropertyPath}"`;
+            }
+            if (error.keyword === "type") {
+                const formattedField = error.dataPath.slice(1);
+                const formattedExpectedType = Array.isArray(error.schema) ? error.schema.join("/") : error.schema;
+                const formattedValue = JSON.stringify(error.data);
+
+                return `Property "${formattedField}" is the wrong type (expected ${formattedExpectedType} but got \`${formattedValue}\`)`;
+            }
+
+            const field = error.dataPath[0] === "." ? error.dataPath.slice(1) : error.dataPath;
+
+            return `"${field}" ${error.message}. Value: ${JSON.stringify(error.data)}`;
+        }).map(message => `\t- ${message}.\n`).join("");
+    }
+
+    /**
+     * Validates the top level properties of the config object.
+     * @param {Object} config The config object to validate.
+     * @param {string} source The name of the configuration source to report in any errors.
+     * @returns {void}
+     */
+    validateConfigSchema(config, source = null) {
+        validateSchema = validateSchema || ajv.compile(configSchema);
+
+        if (!validateSchema(config)) {
+            throw new Error(`ESLint configuration in ${source} is invalid:\n${this.formatErrors(validateSchema.errors)}`);
+        }
+
+        if (Object.hasOwnProperty.call(config, "ecmaFeatures")) {
+            emitDeprecationWarning(source, "ESLINT_LEGACY_ECMAFEATURES");
+        }
+    }
+
+    /**
+     * Validates an entire config object.
+     * @param {Object} config The config object to validate.
+     * @param {string} source The name of the configuration source to report in any errors.
+     * @param {function(ruleId:string): Object} [getAdditionalRule] A map from strings to loaded rules.
+     * @param {function(envId:string): Object} [getAdditionalEnv] A map from strings to loaded envs.
+     * @returns {void}
+     */
+    validate(config, source, getAdditionalRule, getAdditionalEnv) {
+        this.validateConfigSchema(config, source);
+        this.validateRules(config.rules, source, getAdditionalRule);
+        this.validateEnvironment(config.env, source, getAdditionalEnv);
+        this.validateGlobals(config.globals, source);
+
+        for (const override of config.overrides || []) {
+            this.validateRules(override.rules, source, getAdditionalRule);
+            this.validateEnvironment(override.env, source, getAdditionalEnv);
+            this.validateGlobals(config.globals, source);
+        }
+    }
+
+    /**
+     * Validate config array object.
+     * @param {ConfigArray} configArray The config array to validate.
+     * @returns {void}
+     */
+    validateConfigArray(configArray) {
+        const getPluginEnv = Map.prototype.get.bind(configArray.pluginEnvironments);
+        const getPluginProcessor = Map.prototype.get.bind(configArray.pluginProcessors);
+        const getPluginRule = Map.prototype.get.bind(configArray.pluginRules);
+
+        // Validate.
+        for (const element of configArray) {
+            if (validated.has(element)) {
+                continue;
+            }
+            validated.add(element);
+
+            this.validateEnvironment(element.env, element.name, getPluginEnv);
+            this.validateGlobals(element.globals, element.name);
+            this.validateProcessor(element.processor, element.name, getPluginProcessor);
+            this.validateRules(element.rules, element.name, getPluginRule);
+        }
+    }
+
+}

node_modules/@eslint/eslintrc/lib/shared/deep-merge-arrays.js

@@ -0,0 +1,58 @@
+/**
+ * @fileoverview Applies default rule options
+ * @author JoshuaKGoldberg
+ */
+
+/**
+ * Check if the variable contains an object strictly rejecting arrays
+ * @param {unknown} value an object
+ * @returns {boolean} Whether value is an object
+ */
+function isObjectNotArray(value) {
+    return typeof value === "object" && value !== null && !Array.isArray(value);
+}
+
+/**
+ * Deeply merges second on top of first, creating a new {} object if needed.
+ * @param {T} first Base, default value.
+ * @param {U} second User-specified value.
+ * @returns {T | U | (T & U)} Merged equivalent of second on top of first.
+ */
+function deepMergeObjects(first, second) {
+    if (second === void 0) {
+        return first;
+    }
+
+    if (!isObjectNotArray(first) || !isObjectNotArray(second)) {
+        return second;
+    }
+
+    const result = { ...first, ...second };
+
+    for (const key of Object.keys(second)) {
+        if (Object.prototype.propertyIsEnumerable.call(first, key)) {
+            result[key] = deepMergeObjects(first[key], second[key]);
+        }
+    }
+
+    return result;
+}
+
+/**
+ * Deeply merges second on top of first, creating a new [] array if needed.
+ * @param {T[] | undefined} first Base, default values.
+ * @param {U[] | undefined} second User-specified values.
+ * @returns {(T | U | (T & U))[]} Merged equivalent of second on top of first.
+ */
+function deepMergeArrays(first, second) {
+    if (!first || !second) {
+        return second || first || [];
+    }
+
+    return [
+        ...first.map((value, i) => deepMergeObjects(value, second[i])),
+        ...second.slice(first.length)
+    ];
+}
+
+export { deepMergeArrays };

node_modules/@eslint/eslintrc/lib/shared/deprecation-warnings.js

@@ -0,0 +1,63 @@
+/**
+ * @fileoverview Provide the function that emits deprecation warnings.
+ * @author Toru Nagashima <http://github.com/mysticatea>
+ */
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+import path from "path";
+
+//------------------------------------------------------------------------------
+// Private
+//------------------------------------------------------------------------------
+
+// Defitions for deprecation warnings.
+const deprecationWarningMessages = {
+    ESLINT_LEGACY_ECMAFEATURES:
+        "The 'ecmaFeatures' config file property is deprecated and has no effect.",
+    ESLINT_PERSONAL_CONFIG_LOAD:
+        "'~/.eslintrc.*' config files have been deprecated. " +
+        "Please use a config file per project or the '--config' option.",
+    ESLINT_PERSONAL_CONFIG_SUPPRESS:
+        "'~/.eslintrc.*' config files have been deprecated. " +
+        "Please remove it or add 'root:true' to the config files in your " +
+        "projects in order to avoid loading '~/.eslintrc.*' accidentally."
+};
+
+const sourceFileErrorCache = new Set();
+
+/**
+ * Emits a deprecation warning containing a given filepath. A new deprecation warning is emitted
+ * for each unique file path, but repeated invocations with the same file path have no effect.
+ * No warnings are emitted if the `--no-deprecation` or `--no-warnings` Node runtime flags are active.
+ * @param {string} source The name of the configuration source to report the warning for.
+ * @param {string} errorCode The warning message to show.
+ * @returns {void}
+ */
+function emitDeprecationWarning(source, errorCode) {
+    const cacheKey = JSON.stringify({ source, errorCode });
+
+    if (sourceFileErrorCache.has(cacheKey)) {
+        return;
+    }
+    sourceFileErrorCache.add(cacheKey);
+
+    const rel = path.relative(process.cwd(), source);
+    const message = deprecationWarningMessages[errorCode];
+
+    process.emitWarning(
+        `${message} (found in "${rel}")`,
+        "DeprecationWarning",
+        errorCode
+    );
+}
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+export {
+    emitDeprecationWarning
+};

node_modules/@eslint/eslintrc/lib/shared/naming.js

@@ -0,0 +1,96 @@
+/**
+ * @fileoverview Common helpers for naming of plugins, formatters and configs
+ */
+
+const NAMESPACE_REGEX = /^@.*\//iu;
+
+/**
+ * Brings package name to correct format based on prefix
+ * @param {string} name The name of the package.
+ * @param {string} prefix Can be either "eslint-plugin", "eslint-config" or "eslint-formatter"
+ * @returns {string} Normalized name of the package
+ * @private
+ */
+function normalizePackageName(name, prefix) {
+    let normalizedName = name;
+
+    /**
+     * On Windows, name can come in with Windows slashes instead of Unix slashes.
+     * Normalize to Unix first to avoid errors later on.
+     * https://github.com/eslint/eslint/issues/5644
+     */
+    if (normalizedName.includes("\\")) {
+        normalizedName = normalizedName.replace(/\\/gu, "/");
+    }
+
+    if (normalizedName.charAt(0) === "@") {
+
+        /**
+         * it's a scoped package
+         * package name is the prefix, or just a username
+         */
+        const scopedPackageShortcutRegex = new RegExp(`^(@[^/]+)(?:/(?:${prefix})?)?$`, "u"),
+            scopedPackageNameRegex = new RegExp(`^${prefix}(-|$)`, "u");
+
+        if (scopedPackageShortcutRegex.test(normalizedName)) {
+            normalizedName = normalizedName.replace(scopedPackageShortcutRegex, `$1/${prefix}`);
+        } else if (!scopedPackageNameRegex.test(normalizedName.split("/")[1])) {
+
+            /**
+             * for scoped packages, insert the prefix after the first / unless
+             * the path is already @scope/eslint or @scope/eslint-xxx-yyy
+             */
+            normalizedName = normalizedName.replace(/^@([^/]+)\/(.*)$/u, `@$1/${prefix}-$2`);
+        }
+    } else if (!normalizedName.startsWith(`${prefix}-`)) {
+        normalizedName = `${prefix}-${normalizedName}`;
+    }
+
+    return normalizedName;
+}
+
+/**
+ * Removes the prefix from a fullname.
+ * @param {string} fullname The term which may have the prefix.
+ * @param {string} prefix The prefix to remove.
+ * @returns {string} The term without prefix.
+ */
+function getShorthandName(fullname, prefix) {
+    if (fullname[0] === "@") {
+        let matchResult = new RegExp(`^(@[^/]+)/${prefix}$`, "u").exec(fullname);
+
+        if (matchResult) {
+            return matchResult[1];
+        }
+
+        matchResult = new RegExp(`^(@[^/]+)/${prefix}-(.+)$`, "u").exec(fullname);
+        if (matchResult) {
+            return `${matchResult[1]}/${matchResult[2]}`;
+        }
+    } else if (fullname.startsWith(`${prefix}-`)) {
+        return fullname.slice(prefix.length + 1);
+    }
+
+    return fullname;
+}
+
+/**
+ * Gets the scope (namespace) of a term.
+ * @param {string} term The term which may have the namespace.
+ * @returns {string} The namespace of the term if it has one.
+ */
+function getNamespaceFromTerm(term) {
+    const match = term.match(NAMESPACE_REGEX);
+
+    return match ? match[0] : "";
+}
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+export {
+    normalizePackageName,
+    getShorthandName,
+    getNamespaceFromTerm
+};

node_modules/@eslint/eslintrc/lib/shared/relative-module-resolver.js

@@ -0,0 +1,42 @@
+/**
+ * Utility for resolving a module relative to another module
+ * @author Teddy Katz
+ */
+
+import Module from "module";
+
+/*
+ * `Module.createRequire` is added in v12.2.0. It supports URL as well.
+ * We only support the case where the argument is a filepath, not a URL.
+ */
+const createRequire = Module.createRequire;
+
+/**
+ * Resolves a Node module relative to another module
+ * @param {string} moduleName The name of a Node module, or a path to a Node module.
+ * @param {string} relativeToPath An absolute path indicating the module that `moduleName` should be resolved relative to. This must be
+ * a file rather than a directory, but the file need not actually exist.
+ * @returns {string} The absolute path that would result from calling `require.resolve(moduleName)` in a file located at `relativeToPath`
+ */
+function resolve(moduleName, relativeToPath) {
+    try {
+        return createRequire(relativeToPath).resolve(moduleName);
+    } catch (error) {
+
+        // This `if` block is for older Node.js than 12.0.0. We can remove this block in the future.
+        if (
+            typeof error === "object" &&
+            error !== null &&
+            error.code === "MODULE_NOT_FOUND" &&
+            !error.requireStack &&
+            error.message.includes(moduleName)
+        ) {
+            error.message += `\nRequire stack:\n- ${relativeToPath}`;
+        }
+        throw error;
+    }
+}
+
+export {
+    resolve
+};

node_modules/@eslint/eslintrc/lib/shared/types.js

@@ -0,0 +1,149 @@
+/**
+ * @fileoverview Define common types for input completion.
+ * @author Toru Nagashima <https://github.com/mysticatea>
+ */
+
+/** @type {any} */
+export default {};
+
+/** @typedef {boolean | "off" | "readable" | "readonly" | "writable" | "writeable"} GlobalConf */
+/** @typedef {0 | 1 | 2 | "off" | "warn" | "error"} SeverityConf */
+/** @typedef {SeverityConf | [SeverityConf, ...any[]]} RuleConf */
+
+/**
+ * @typedef {Object} EcmaFeatures
+ * @property {boolean} [globalReturn] Enabling `return` statements at the top-level.
+ * @property {boolean} [jsx] Enabling JSX syntax.
+ * @property {boolean} [impliedStrict] Enabling strict mode always.
+ */
+
+/**
+ * @typedef {Object} ParserOptions
+ * @property {EcmaFeatures} [ecmaFeatures] The optional features.
+ * @property {3|5|6|7|8|9|10|11|12|2015|2016|2017|2018|2019|2020|2021} [ecmaVersion] The ECMAScript version (or revision number).
+ * @property {"script"|"module"} [sourceType] The source code type.
+ */
+
+/**
+ * @typedef {Object} ConfigData
+ * @property {Record<string, boolean>} [env] The environment settings.
+ * @property {string | string[]} [extends] The path to other config files or the package name of shareable configs.
+ * @property {Record<string, GlobalConf>} [globals] The global variable settings.
+ * @property {string | string[]} [ignorePatterns] The glob patterns that ignore to lint.
+ * @property {boolean} [noInlineConfig] The flag that disables directive comments.
+ * @property {OverrideConfigData[]} [overrides] The override settings per kind of files.
+ * @property {string} [parser] The path to a parser or the package name of a parser.
+ * @property {ParserOptions} [parserOptions] The parser options.
+ * @property {string[]} [plugins] The plugin specifiers.
+ * @property {string} [processor] The processor specifier.
+ * @property {boolean} [reportUnusedDisableDirectives] The flag to report unused `eslint-disable` comments.
+ * @property {boolean} [root] The root flag.
+ * @property {Record<string, RuleConf>} [rules] The rule settings.
+ * @property {Object} [settings] The shared settings.
+ */
+
+/**
+ * @typedef {Object} OverrideConfigData
+ * @property {Record<string, boolean>} [env] The environment settings.
+ * @property {string | string[]} [excludedFiles] The glob pattarns for excluded files.
+ * @property {string | string[]} [extends] The path to other config files or the package name of shareable configs.
+ * @property {string | string[]} files The glob patterns for target files.
+ * @property {Record<string, GlobalConf>} [globals] The global variable settings.
+ * @property {boolean} [noInlineConfig] The flag that disables directive comments.
+ * @property {OverrideConfigData[]} [overrides] The override settings per kind of files.
+ * @property {string} [parser] The path to a parser or the package name of a parser.
+ * @property {ParserOptions} [parserOptions] The parser options.
+ * @property {string[]} [plugins] The plugin specifiers.
+ * @property {string} [processor] The processor specifier.
+ * @property {boolean} [reportUnusedDisableDirectives] The flag to report unused `eslint-disable` comments.
+ * @property {Record<string, RuleConf>} [rules] The rule settings.
+ * @property {Object} [settings] The shared settings.
+ */
+
+/**
+ * @typedef {Object} ParseResult
+ * @property {Object} ast The AST.
+ * @property {ScopeManager} [scopeManager] The scope manager of the AST.
+ * @property {Record<string, any>} [services] The services that the parser provides.
+ * @property {Record<string, string[]>} [visitorKeys] The visitor keys of the AST.
+ */
+
+/**
+ * @typedef {Object} Parser
+ * @property {(text:string, options:ParserOptions) => Object} parse The definition of global variables.
+ * @property {(text:string, options:ParserOptions) => ParseResult} [parseForESLint] The parser options that will be enabled under this environment.
+ */
+
+/**
+ * @typedef {Object} Environment
+ * @property {Record<string, GlobalConf>} [globals] The definition of global variables.
+ * @property {ParserOptions} [parserOptions] The parser options that will be enabled under this environment.
+ */
+
+/**
+ * @typedef {Object} LintMessage
+ * @property {number} column The 1-based column number.
+ * @property {number} [endColumn] The 1-based column number of the end location.
+ * @property {number} [endLine] The 1-based line number of the end location.
+ * @property {boolean} fatal If `true` then this is a fatal error.
+ * @property {{range:[number,number], text:string}} [fix] Information for autofix.
+ * @property {number} line The 1-based line number.
+ * @property {string} message The error message.
+ * @property {string|null} ruleId The ID of the rule which makes this message.
+ * @property {0|1|2} severity The severity of this message.
+ * @property {Array<{desc?: string, messageId?: string, fix: {range: [number, number], text: string}}>} [suggestions] Information for suggestions.
+ */
+
+/**
+ * @typedef {Object} SuggestionResult
+ * @property {string} desc A short description.
+ * @property {string} [messageId] Id referencing a message for the description.
+ * @property {{ text: string, range: number[] }} fix fix result info
+ */
+
+/**
+ * @typedef {Object} Processor
+ * @property {(text:string, filename:string) => Array<string | { text:string, filename:string }>} [preprocess] The function to extract code blocks.
+ * @property {(messagesList:LintMessage[][], filename:string) => LintMessage[]} [postprocess] The function to merge messages.
+ * @property {boolean} [supportsAutofix] If `true` then it means the processor supports autofix.
+ */
+
+/**
+ * @typedef {Object} RuleMetaDocs
+ * @property {string} category The category of the rule.
+ * @property {string} description The description of the rule.
+ * @property {boolean} recommended If `true` then the rule is included in `eslint:recommended` preset.
+ * @property {string} url The URL of the rule documentation.
+ */
+
+/**
+ * @typedef {Object} RuleMeta
+ * @property {boolean} [deprecated] If `true` then the rule has been deprecated.
+ * @property {RuleMetaDocs} docs The document information of the rule.
+ * @property {"code"|"whitespace"} [fixable] The autofix type.
+ * @property {Record<string,string>} [messages] The messages the rule reports.
+ * @property {string[]} [replacedBy] The IDs of the alternative rules.
+ * @property {Array|Object} schema The option schema of the rule.
+ * @property {"problem"|"suggestion"|"layout"} type The rule type.
+ */
+
+/**
+ * @typedef {Object} Rule
+ * @property {Function} create The factory of the rule.
+ * @property {RuleMeta} meta The meta data of the rule.
+ */
+
+/**
+ * @typedef {Object} Plugin
+ * @property {Record<string, ConfigData>} [configs] The definition of plugin configs.
+ * @property {Record<string, Environment>} [environments] The definition of plugin environments.
+ * @property {Record<string, Processor>} [processors] The definition of plugin processors.
+ * @property {Record<string, Function | Rule>} [rules] The definition of plugin rules.
+ */
+
+/**
+ * Information of deprecated rules.
+ * @typedef {Object} DeprecatedRuleInfo
+ * @property {string} ruleId The rule ID.
+ * @property {string[]} replacedBy The rule IDs that replace this deprecated rule.
+ */