WIP - add extractor, generate snippet_data

node_modules/eslint/lib/util/ajv.js

@@ -0,0 +1,31 @@
+/**
+ * @fileoverview The instance of Ajv validator.
+ * @author Evgeny Poberezkin
+ */
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const Ajv = require("ajv"),
+    metaSchema = require("ajv/lib/refs/json-schema-draft-04.json");
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+const ajv = new Ajv({
+    meta: false,
+    useDefaults: true,
+    validateSchema: false,
+    missingRefs: "ignore",
+    verbose: true,
+    schemaId: "auto"
+});
+
+ajv.addMetaSchema(metaSchema);
+// eslint-disable-next-line no-underscore-dangle
+ajv._opts.defaultMeta = metaSchema.id;
+
+module.exports = ajv;

node_modules/eslint/lib/util/apply-disable-directives.js

@@ -0,0 +1,159 @@
+/**
+ * @fileoverview A module that filters reported problems based on `eslint-disable` and `eslint-enable` comments
+ * @author Teddy Katz
+ */
+
+"use strict";
+
+const lodash = require("lodash");
+
+/**
+ * Compares the locations of two objects in a source file
+ * @param {{line: number, column: number}} itemA The first object
+ * @param {{line: number, column: number}} itemB The second object
+ * @returns {number} A value less than 1 if itemA appears before itemB in the source file, greater than 1 if
+ * itemA appears after itemB in the source file, or 0 if itemA and itemB have the same location.
+ */
+function compareLocations(itemA, itemB) {
+    return itemA.line - itemB.line || itemA.column - itemB.column;
+}
+
+/**
+ * This is the same as the exported function, except that it
+ * doesn't handle disable-line and disable-next-line directives, and it always reports unused
+ * disable directives.
+ * @param {Object} options options for applying directives. This is the same as the options
+ * for the exported function, except that `reportUnusedDisableDirectives` is not supported
+ * (this function always reports unused disable directives).
+ * @returns {{problems: Problem[], unusedDisableDirectives: Problem[]}} An object with a list
+ * of filtered problems and unused eslint-disable directives
+ */
+function applyDirectives(options) {
+    const problems = [];
+    let nextDirectiveIndex = 0;
+    let currentGlobalDisableDirective = null;
+    const disabledRuleMap = new Map();
+
+    // enabledRules is only used when there is a current global disable directive.
+    const enabledRules = new Set();
+    const usedDisableDirectives = new Set();
+
+    for (const problem of options.problems) {
+        while (
+            nextDirectiveIndex < options.directives.length &&
+            compareLocations(options.directives[nextDirectiveIndex], problem) <= 0
+        ) {
+            const directive = options.directives[nextDirectiveIndex++];
+
+            switch (directive.type) {
+                case "disable":
+                    if (directive.ruleId === null) {
+                        currentGlobalDisableDirective = directive;
+                        disabledRuleMap.clear();
+                        enabledRules.clear();
+                    } else if (currentGlobalDisableDirective) {
+                        enabledRules.delete(directive.ruleId);
+                        disabledRuleMap.set(directive.ruleId, directive);
+                    } else {
+                        disabledRuleMap.set(directive.ruleId, directive);
+                    }
+                    break;
+
+                case "enable":
+                    if (directive.ruleId === null) {
+                        currentGlobalDisableDirective = null;
+                        disabledRuleMap.clear();
+                    } else if (currentGlobalDisableDirective) {
+                        enabledRules.add(directive.ruleId);
+                        disabledRuleMap.delete(directive.ruleId);
+                    } else {
+                        disabledRuleMap.delete(directive.ruleId);
+                    }
+                    break;
+
+                // no default
+            }
+        }
+
+        if (disabledRuleMap.has(problem.ruleId)) {
+            usedDisableDirectives.add(disabledRuleMap.get(problem.ruleId));
+        } else if (currentGlobalDisableDirective && !enabledRules.has(problem.ruleId)) {
+            usedDisableDirectives.add(currentGlobalDisableDirective);
+        } else {
+            problems.push(problem);
+        }
+    }
+
+    const unusedDisableDirectives = options.directives
+        .filter(directive => directive.type === "disable" && !usedDisableDirectives.has(directive))
+        .map(directive => ({
+            ruleId: null,
+            message: directive.ruleId
+                ? `Unused eslint-disable directive (no problems were reported from '${directive.ruleId}').`
+                : "Unused eslint-disable directive (no problems were reported).",
+            line: directive.unprocessedDirective.line,
+            column: directive.unprocessedDirective.column,
+            severity: 2,
+            nodeType: null
+        }));
+
+    return { problems, unusedDisableDirectives };
+}
+
+/**
+ * Given a list of directive comments (i.e. metadata about eslint-disable and eslint-enable comments) and a list
+ * of reported problems, determines which problems should be reported.
+ * @param {Object} options Information about directives and problems
+ * @param {{
+ *      type: ("disable"|"enable"|"disable-line"|"disable-next-line"),
+ *      ruleId: (string|null),
+ *      line: number,
+ *      column: number
+ * }} options.directives Directive comments found in the file, with one-based columns.
+ * Two directive comments can only have the same location if they also have the same type (e.g. a single eslint-disable
+ * comment for two different rules is represented as two directives).
+ * @param {{ruleId: (string|null), line: number, column: number}[]} options.problems
+ * A list of problems reported by rules, sorted by increasing location in the file, with one-based columns.
+ * @param {boolean} options.reportUnusedDisableDirectives If `true`, adds additional problems for unused directives
+ * @returns {{ruleId: (string|null), line: number, column: number}[]}
+ * A list of reported problems that were not disabled by the directive comments.
+ */
+module.exports = options => {
+    const blockDirectives = options.directives
+        .filter(directive => directive.type === "disable" || directive.type === "enable")
+        .map(directive => Object.assign({}, directive, { unprocessedDirective: directive }))
+        .sort(compareLocations);
+
+    const lineDirectives = lodash.flatMap(options.directives, directive => {
+        switch (directive.type) {
+            case "disable":
+            case "enable":
+                return [];
+
+            case "disable-line":
+                return [
+                    { type: "disable", line: directive.line, column: 1, ruleId: directive.ruleId, unprocessedDirective: directive },
+                    { type: "enable", line: directive.line + 1, column: 0, ruleId: directive.ruleId, unprocessedDirective: directive }
+                ];
+
+            case "disable-next-line":
+                return [
+                    { type: "disable", line: directive.line + 1, column: 1, ruleId: directive.ruleId, unprocessedDirective: directive },
+                    { type: "enable", line: directive.line + 2, column: 0, ruleId: directive.ruleId, unprocessedDirective: directive }
+                ];
+
+            default:
+                throw new TypeError(`Unrecognized directive type '${directive.type}'`);
+        }
+    }).sort(compareLocations);
+
+    const blockDirectivesResult = applyDirectives({ problems: options.problems, directives: blockDirectives });
+    const lineDirectivesResult = applyDirectives({ problems: blockDirectivesResult.problems, directives: lineDirectives });
+
+    return options.reportUnusedDisableDirectives
+        ? lineDirectivesResult.problems
+            .concat(blockDirectivesResult.unusedDisableDirectives)
+            .concat(lineDirectivesResult.unusedDisableDirectives)
+            .sort(compareLocations)
+        : lineDirectivesResult.problems;
+};

node_modules/eslint/lib/util/config-comment-parser.js

@@ -0,0 +1,141 @@
+/**
+ * @fileoverview Config Comment Parser
+ * @author Nicholas C. Zakas
+ */
+
+/* eslint-disable class-methods-use-this*/
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const levn = require("levn"),
+    ConfigOps = require("../config/config-ops");
+
+const debug = require("debug")("eslint:config-comment-parser");
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+/**
+ * Object to parse ESLint configuration comments inside JavaScript files.
+ * @name ConfigCommentParser
+ */
+module.exports = class ConfigCommentParser {
+
+    /**
+     * Parses a list of "name:string_value" or/and "name" options divided by comma or
+     * whitespace. Used for "global" and "exported" comments.
+     * @param {string} string The string to parse.
+     * @param {Comment} comment The comment node which has the string.
+     * @returns {Object} Result map object of names and string values, or null values if no value was provided
+     */
+    parseStringConfig(string, comment) {
+        debug("Parsing String config");
+
+        const items = {};
+
+        // Collapse whitespace around `:` and `,` to make parsing easier
+        const trimmedString = string.replace(/\s*([:,])\s*/gu, "$1");
+
+        trimmedString.split(/\s|,+/u).forEach(name => {
+            if (!name) {
+                return;
+            }
+
+            // value defaults to null (if not provided), e.g: "foo" => ["foo", null]
+            const [key, value = null] = name.split(":");
+
+            items[key] = { value, comment };
+        });
+        return items;
+    }
+
+    /**
+     * Parses a JSON-like config.
+     * @param {string} string The string to parse.
+     * @param {Object} location Start line and column of comments for potential error message.
+     * @returns {({success: true, config: Object}|{success: false, error: Problem})} Result map object
+     */
+    parseJsonConfig(string, location) {
+        debug("Parsing JSON config");
+
+        let items = {};
+
+        // Parses a JSON-like comment by the same way as parsing CLI option.
+        try {
+            items = levn.parse("Object", string) || {};
+
+            // Some tests say that it should ignore invalid comments such as `/*eslint no-alert:abc*/`.
+            // Also, commaless notations have invalid severity:
+            //     "no-alert: 2 no-console: 2" --> {"no-alert": "2 no-console: 2"}
+            // Should ignore that case as well.
+            if (ConfigOps.isEverySeverityValid(items)) {
+                return {
+                    success: true,
+                    config: items
+                };
+            }
+        } catch (ex) {
+
+            debug("Levn parsing failed; falling back to manual parsing.");
+
+            // ignore to parse the string by a fallback.
+        }
+
+        /*
+         * Optionator cannot parse commaless notations.
+         * But we are supporting that. So this is a fallback for that.
+         */
+        items = {};
+        const normalizedString = string.replace(/([a-zA-Z0-9\-/]+):/gu, "\"$1\":").replace(/(\]|[0-9])\s+(?=")/u, "$1,");
+
+        try {
+            items = JSON.parse(`{${normalizedString}}`);
+        } catch (ex) {
+            debug("Manual parsing failed.");
+
+            return {
+                success: false,
+                error: {
+                    ruleId: null,
+                    fatal: true,
+                    severity: 2,
+                    message: `Failed to parse JSON from '${normalizedString}': ${ex.message}`,
+                    line: location.start.line,
+                    column: location.start.column + 1
+                }
+            };
+
+        }
+
+        return {
+            success: true,
+            config: items
+        };
+    }
+
+    /**
+     * Parses a config of values separated by comma.
+     * @param {string} string The string to parse.
+     * @returns {Object} Result map of values and true values
+     */
+    parseListConfig(string) {
+        debug("Parsing list config");
+
+        const items = {};
+
+        // Collapse whitespace around commas
+        string.replace(/\s*,\s*/gu, ",").split(/,+/u).forEach(name => {
+            const trimmedName = name.trim();
+
+            if (trimmedName) {
+                items[trimmedName] = true;
+            }
+        });
+        return items;
+    }
+
+};

node_modules/eslint/lib/util/file-finder.js

@@ -0,0 +1,144 @@
+/**
+ * @fileoverview Util class to find config files.
+ * @author Aliaksei Shytkin
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const fs = require("fs"),
+    path = require("path");
+
+//------------------------------------------------------------------------------
+// Helpers
+//------------------------------------------------------------------------------
+
+/**
+ * Get the entries for a directory. Including a try-catch may be detrimental to
+ * function performance, so move it out here a separate function.
+ * @param {string} directory The directory to search in.
+ * @returns {string[]} The entries in the directory or an empty array on error.
+ * @private
+ */
+function getDirectoryEntries(directory) {
+    try {
+
+        return fs.readdirSync(directory);
+    } catch (ex) {
+        return [];
+    }
+}
+
+/**
+ * Create a hash of filenames from a directory listing
+ * @param {string[]} entries Array of directory entries.
+ * @param {string} directory Path to a current directory.
+ * @param {string[]} supportedConfigs List of support filenames.
+ * @returns {Object} Hashmap of filenames
+ */
+function normalizeDirectoryEntries(entries, directory, supportedConfigs) {
+    const fileHash = {};
+
+    entries.forEach(entry => {
+        if (supportedConfigs.indexOf(entry) >= 0) {
+            const resolvedEntry = path.resolve(directory, entry);
+
+            if (fs.statSync(resolvedEntry).isFile()) {
+                fileHash[entry] = resolvedEntry;
+            }
+        }
+    });
+    return fileHash;
+}
+
+//------------------------------------------------------------------------------
+// API
+//------------------------------------------------------------------------------
+
+/**
+ * FileFinder class
+ */
+class FileFinder {
+
+    /**
+     * @param {string[]} files The basename(s) of the file(s) to find.
+     * @param {stirng} cwd Current working directory
+     */
+    constructor(files, cwd) {
+        this.fileNames = Array.isArray(files) ? files : [files];
+        this.cwd = cwd || process.cwd();
+        this.cache = {};
+    }
+
+    /**
+     * Find all instances of files with the specified file names, in directory and
+     * parent directories. Cache the results.
+     * Does not check if a matching directory entry is a file.
+     * Searches for all the file names in this.fileNames.
+     * Is currently used by lib/config.js to find .eslintrc and package.json files.
+     * @param  {string} relativeDirectory The directory to start the search from.
+     * @returns {GeneratorFunction} to iterate the file paths found
+     */
+    *findAllInDirectoryAndParents(relativeDirectory) {
+        const cache = this.cache;
+
+        const initialDirectory = relativeDirectory
+            ? path.resolve(this.cwd, relativeDirectory)
+            : this.cwd;
+
+        if (Object.prototype.hasOwnProperty.call(cache, initialDirectory)) {
+            yield* cache[initialDirectory];
+            return; // to avoid doing the normal loop afterwards
+        }
+
+        const dirs = [];
+        const fileNames = this.fileNames;
+        let searched = 0;
+        let directory = initialDirectory;
+
+        do {
+            dirs[searched++] = directory;
+            cache[directory] = [];
+
+            const filesMap = normalizeDirectoryEntries(getDirectoryEntries(directory), directory, fileNames);
+
+            if (Object.keys(filesMap).length) {
+                for (let k = 0; k < fileNames.length; k++) {
+
+                    if (filesMap[fileNames[k]]) {
+                        const filePath = filesMap[fileNames[k]];
+
+                        // Add the file path to the cache of each directory searched.
+                        for (let j = 0; j < searched; j++) {
+                            cache[dirs[j]].push(filePath);
+                        }
+                        yield filePath;
+                        break;
+                    }
+                }
+            }
+
+            const child = directory;
+
+            // Assign parent directory to directory.
+            directory = path.dirname(directory);
+
+            if (directory === child) {
+                return;
+            }
+
+        } while (!Object.prototype.hasOwnProperty.call(cache, directory));
+
+        // Add what has been cached previously to the cache of each directory searched.
+        for (let i = 0; i < searched; i++) {
+            cache[dirs[i]].push(...cache[directory]);
+        }
+
+        yield* cache[dirs[0]];
+    }
+}
+
+module.exports = FileFinder;

node_modules/eslint/lib/util/fix-tracker.js

@@ -0,0 +1,120 @@
+/**
+ * @fileoverview Helper class to aid in constructing fix commands.
+ * @author Alan Pierce
+ */
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const astUtils = require("../util/ast-utils");
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+/**
+ * A helper class to combine fix options into a fix command. Currently, it
+ * exposes some "retain" methods that extend the range of the text being
+ * replaced so that other fixes won't touch that region in the same pass.
+ */
+class FixTracker {
+
+    /**
+     * Create a new FixTracker.
+     *
+     * @param {ruleFixer} fixer A ruleFixer instance.
+     * @param {SourceCode} sourceCode A SourceCode object for the current code.
+     */
+    constructor(fixer, sourceCode) {
+        this.fixer = fixer;
+        this.sourceCode = sourceCode;
+        this.retainedRange = null;
+    }
+
+    /**
+     * Mark the given range as "retained", meaning that other fixes may not
+     * may not modify this region in the same pass.
+     *
+     * @param {int[]} range The range to retain.
+     * @returns {FixTracker} The same RuleFixer, for chained calls.
+     */
+    retainRange(range) {
+        this.retainedRange = range;
+        return this;
+    }
+
+    /**
+     * Given a node, find the function containing it (or the entire program) and
+     * mark it as retained, meaning that other fixes may not modify it in this
+     * pass. This is useful for avoiding conflicts in fixes that modify control
+     * flow.
+     *
+     * @param {ASTNode} node The node to use as a starting point.
+     * @returns {FixTracker} The same RuleFixer, for chained calls.
+     */
+    retainEnclosingFunction(node) {
+        const functionNode = astUtils.getUpperFunction(node);
+
+        return this.retainRange(functionNode ? functionNode.range : this.sourceCode.ast.range);
+    }
+
+    /**
+     * Given a node or token, find the token before and afterward, and mark that
+     * range as retained, meaning that other fixes may not modify it in this
+     * pass. This is useful for avoiding conflicts in fixes that make a small
+     * change to the code where the AST should not be changed.
+     *
+     * @param {ASTNode|Token} nodeOrToken The node or token to use as a starting
+     *      point. The token to the left and right are use in the range.
+     * @returns {FixTracker} The same RuleFixer, for chained calls.
+     */
+    retainSurroundingTokens(nodeOrToken) {
+        const tokenBefore = this.sourceCode.getTokenBefore(nodeOrToken) || nodeOrToken;
+        const tokenAfter = this.sourceCode.getTokenAfter(nodeOrToken) || nodeOrToken;
+
+        return this.retainRange([tokenBefore.range[0], tokenAfter.range[1]]);
+    }
+
+    /**
+     * Create a fix command that replaces the given range with the given text,
+     * accounting for any retained ranges.
+     *
+     * @param {int[]} range The range to remove in the fix.
+     * @param {string} text The text to insert in place of the range.
+     * @returns {Object} The fix command.
+     */
+    replaceTextRange(range, text) {
+        let actualRange;
+
+        if (this.retainedRange) {
+            actualRange = [
+                Math.min(this.retainedRange[0], range[0]),
+                Math.max(this.retainedRange[1], range[1])
+            ];
+        } else {
+            actualRange = range;
+        }
+
+        return this.fixer.replaceTextRange(
+            actualRange,
+            this.sourceCode.text.slice(actualRange[0], range[0]) +
+                text +
+                this.sourceCode.text.slice(range[1], actualRange[1])
+        );
+    }
+
+    /**
+     * Create a fix command that removes the given node or token, accounting for
+     * any retained ranges.
+     *
+     * @param {ASTNode|Token} nodeOrToken The node or token to remove.
+     * @returns {Object} The fix command.
+     */
+    remove(nodeOrToken) {
+        return this.replaceTextRange(nodeOrToken.range, "");
+    }
+}
+
+module.exports = FixTracker;

node_modules/eslint/lib/util/glob-utils.js

@@ -0,0 +1,285 @@
+/**
+ * @fileoverview Utilities for working with globs and the filesystem.
+ * @author Ian VanSchooten
+ */
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const lodash = require("lodash"),
+    fs = require("fs"),
+    path = require("path"),
+    GlobSync = require("./glob"),
+
+    pathUtils = require("./path-utils"),
+    IgnoredPaths = require("./ignored-paths");
+
+const debug = require("debug")("eslint:glob-utils");
+
+//------------------------------------------------------------------------------
+// Helpers
+//------------------------------------------------------------------------------
+
+/**
+ * Checks whether a directory exists at the given location
+ * @param {string} resolvedPath A path from the CWD
+ * @returns {boolean} `true` if a directory exists
+ */
+function directoryExists(resolvedPath) {
+    return fs.existsSync(resolvedPath) && fs.statSync(resolvedPath).isDirectory();
+}
+
+/**
+ * Checks if a provided path is a directory and returns a glob string matching
+ * all files under that directory if so, the path itself otherwise.
+ *
+ * Reason for this is that `glob` needs `/**` to collect all the files under a
+ * directory where as our previous implementation without `glob` simply walked
+ * a directory that is passed. So this is to maintain backwards compatibility.
+ *
+ * Also makes sure all path separators are POSIX style for `glob` compatibility.
+ *
+ * @param {Object}   [options]                    An options object
+ * @param {string[]} [options.extensions=[".js"]] An array of accepted extensions
+ * @param {string}   [options.cwd=process.cwd()]  The cwd to use to resolve relative pathnames
+ * @returns {Function} A function that takes a pathname and returns a glob that
+ *                     matches all files with the provided extensions if
+ *                     pathname is a directory.
+ */
+function processPath(options) {
+    const cwd = (options && options.cwd) || process.cwd();
+    let extensions = (options && options.extensions) || [".js"];
+
+    extensions = extensions.map(ext => ext.replace(/^\./u, ""));
+
+    let suffix = "/**";
+
+    if (extensions.length === 1) {
+        suffix += `/*.${extensions[0]}`;
+    } else {
+        suffix += `/*.{${extensions.join(",")}}`;
+    }
+
+    /**
+     * A function that converts a directory name to a glob pattern
+     *
+     * @param {string} pathname The directory path to be modified
+     * @returns {string} The glob path or the file path itself
+     * @private
+     */
+    return function(pathname) {
+        if (pathname === "") {
+            return "";
+        }
+
+        let newPath = pathname;
+        const resolvedPath = path.resolve(cwd, pathname);
+
+        if (directoryExists(resolvedPath)) {
+            newPath = pathname.replace(/[/\\]$/u, "") + suffix;
+        }
+
+        return pathUtils.convertPathToPosix(newPath);
+    };
+}
+
+/**
+ * The error type when no files match a glob.
+ */
+class NoFilesFoundError extends Error {
+
+    /**
+     * @param {string} pattern - The glob pattern which was not found.
+     */
+    constructor(pattern) {
+        super(`No files matching '${pattern}' were found.`);
+
+        this.messageTemplate = "file-not-found";
+        this.messageData = { pattern };
+    }
+
+}
+
+/**
+ * The error type when there are files matched by a glob, but all of them have been ignored.
+ */
+class AllFilesIgnoredError extends Error {
+
+    /**
+     * @param {string} pattern - The glob pattern which was not found.
+     */
+    constructor(pattern) {
+        super(`All files matched by '${pattern}' are ignored.`);
+        this.messageTemplate = "all-files-ignored";
+        this.messageData = { pattern };
+    }
+}
+
+const NORMAL_LINT = {};
+const SILENTLY_IGNORE = {};
+const IGNORE_AND_WARN = {};
+
+/**
+ * Tests whether a file should be linted or ignored
+ * @param {string} filename The file to be processed
+ * @param {{ignore: (boolean|null)}} options If `ignore` is false, updates the behavior to
+ * not process custom ignore paths, and lint files specified by direct path even if they
+ * match the default ignore path
+ * @param {boolean} isDirectPath True if the file was provided as a direct path
+ * (as opposed to being resolved from a glob)
+ * @param {IgnoredPaths} ignoredPaths An instance of IgnoredPaths to check whether a given
+ * file is ignored.
+ * @returns {(NORMAL_LINT|SILENTLY_IGNORE|IGNORE_AND_WARN)} A directive for how the
+ * file should be processed (either linted normally, or silently ignored, or ignored
+ * with a warning that it is being ignored)
+ */
+function testFileAgainstIgnorePatterns(filename, options, isDirectPath, ignoredPaths) {
+    const shouldProcessCustomIgnores = options.ignore !== false;
+    const shouldLintIgnoredDirectPaths = options.ignore === false;
+    const fileMatchesIgnorePatterns = ignoredPaths.contains(filename, "default") ||
+        (shouldProcessCustomIgnores && ignoredPaths.contains(filename, "custom"));
+
+    if (fileMatchesIgnorePatterns && isDirectPath && !shouldLintIgnoredDirectPaths) {
+        return IGNORE_AND_WARN;
+    }
+
+    if (!fileMatchesIgnorePatterns || (isDirectPath && shouldLintIgnoredDirectPaths)) {
+        return NORMAL_LINT;
+    }
+
+    return SILENTLY_IGNORE;
+}
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+/**
+ * Resolves any directory patterns into glob-based patterns for easier handling.
+ * @param   {string[]} patterns               File patterns (such as passed on the command line).
+ * @param   {Object} options                  An options object.
+ * @param   {string} [options.globInputPaths] False disables glob resolution.
+ * @returns {string[]} The equivalent glob patterns and filepath strings.
+ */
+function resolveFileGlobPatterns(patterns, options) {
+    if (options.globInputPaths === false) {
+        return patterns;
+    }
+
+    const processPathExtensions = processPath(options);
+
+    return patterns.map(processPathExtensions);
+}
+
+const dotfilesPattern = /(?:(?:^\.)|(?:[/\\]\.))[^/\\.].*/u;
+
+/**
+ * Build a list of absolute filesnames on which ESLint will act.
+ * Ignored files are excluded from the results, as are duplicates.
+ *
+ * @param   {string[]} globPatterns                     Glob patterns.
+ * @param   {Object}   [providedOptions]                An options object.
+ * @param   {string}   [providedOptions.cwd]            CWD (considered for relative filenames)
+ * @param   {boolean}  [providedOptions.ignore]         False disables use of .eslintignore.
+ * @param   {string}   [providedOptions.ignorePath]     The ignore file to use instead of .eslintignore.
+ * @param   {string}   [providedOptions.ignorePattern]  A pattern of files to ignore.
+ * @param   {string}   [providedOptions.globInputPaths] False disables glob resolution.
+ * @returns {string[]} Resolved absolute filenames.
+ */
+function listFilesToProcess(globPatterns, providedOptions) {
+    const options = providedOptions || { ignore: true };
+    const cwd = options.cwd || process.cwd();
+
+    const getIgnorePaths = lodash.memoize(
+        optionsObj =>
+            new IgnoredPaths(optionsObj)
+    );
+
+    /*
+     * The test "should use default options if none are provided" (source-code-utils.js) checks that 'module.exports.resolveFileGlobPatterns' was called.
+     * So it cannot use the local function "resolveFileGlobPatterns".
+     */
+    const resolvedGlobPatterns = module.exports.resolveFileGlobPatterns(globPatterns, options);
+
+    debug("Creating list of files to process.");
+    const resolvedPathsByGlobPattern = resolvedGlobPatterns.map(pattern => {
+        if (pattern === "") {
+            return [{
+                filename: "",
+                behavior: SILENTLY_IGNORE
+            }];
+        }
+
+        const file = path.resolve(cwd, pattern);
+
+        if (options.globInputPaths === false || (fs.existsSync(file) && fs.statSync(file).isFile())) {
+            const ignoredPaths = getIgnorePaths(options);
+            const fullPath = options.globInputPaths === false ? file : fs.realpathSync(file);
+
+            return [{
+                filename: fullPath,
+                behavior: testFileAgainstIgnorePatterns(fullPath, options, true, ignoredPaths)
+            }];
+        }
+
+        // regex to find .hidden or /.hidden patterns, but not ./relative or ../relative
+        const globIncludesDotfiles = dotfilesPattern.test(pattern);
+        let newOptions = options;
+
+        if (!options.dotfiles) {
+            newOptions = Object.assign({}, options, { dotfiles: globIncludesDotfiles });
+        }
+
+        const ignoredPaths = getIgnorePaths(newOptions);
+        const shouldIgnore = ignoredPaths.getIgnoredFoldersGlobChecker();
+        const globOptions = {
+            nodir: true,
+            dot: true,
+            cwd
+        };
+
+        return new GlobSync(pattern, globOptions, shouldIgnore).found.map(globMatch => {
+            const relativePath = path.resolve(cwd, globMatch);
+
+            return {
+                filename: relativePath,
+                behavior: testFileAgainstIgnorePatterns(relativePath, options, false, ignoredPaths)
+            };
+        });
+    });
+
+    const allPathDescriptors = resolvedPathsByGlobPattern.reduce((pathsForAllGlobs, pathsForCurrentGlob, index) => {
+        if (pathsForCurrentGlob.every(pathDescriptor => pathDescriptor.behavior === SILENTLY_IGNORE && pathDescriptor.filename !== "")) {
+            throw new (pathsForCurrentGlob.length ? AllFilesIgnoredError : NoFilesFoundError)(globPatterns[index]);
+        }
+
+        pathsForCurrentGlob.forEach(pathDescriptor => {
+            switch (pathDescriptor.behavior) {
+                case NORMAL_LINT:
+                    pathsForAllGlobs.push({ filename: pathDescriptor.filename, ignored: false });
+                    break;
+                case IGNORE_AND_WARN:
+                    pathsForAllGlobs.push({ filename: pathDescriptor.filename, ignored: true });
+                    break;
+                case SILENTLY_IGNORE:
+
+                    // do nothing
+                    break;
+
+                default:
+                    throw new Error(`Unexpected file behavior for ${pathDescriptor.filename}`);
+            }
+        });
+
+        return pathsForAllGlobs;
+    }, []);
+
+    return lodash.uniqBy(allPathDescriptors, pathDescriptor => pathDescriptor.filename);
+}
+
+module.exports = {
+    resolveFileGlobPatterns,
+    listFilesToProcess
+};

node_modules/eslint/lib/util/glob.js

@@ -0,0 +1,63 @@
+/**
+ * @fileoverview An inherited `glob.GlobSync` to support .gitignore patterns.
+ * @author Kael Zhang
+ */
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const Sync = require("glob").GlobSync,
+    util = require("util");
+
+//------------------------------------------------------------------------------
+// Private
+//------------------------------------------------------------------------------
+
+const IGNORE = Symbol("ignore");
+
+/**
+ * Subclass of `glob.GlobSync`
+ * @param {string}     pattern      Pattern to be matched.
+ * @param {Object}     options      `options` for `glob`
+ * @param {function()} shouldIgnore Method to check whether a directory should be ignored.
+ * @constructor
+ */
+function GlobSync(pattern, options, shouldIgnore) {
+
+    /**
+     * We don't put this thing to argument `options` to avoid
+     * further problems, such as `options` validation.
+     *
+     * Use `Symbol` as much as possible to avoid confliction.
+     */
+    this[IGNORE] = shouldIgnore;
+
+    Sync.call(this, pattern, options);
+}
+
+util.inherits(GlobSync, Sync);
+
+/* eslint no-underscore-dangle: ["error", { "allow": ["_readdir", "_mark"] }] */
+
+GlobSync.prototype._readdir = function(abs, inGlobStar) {
+
+    /**
+     * `options.nodir` makes `options.mark` as `true`.
+     * Mark `abs` first
+     * to make sure `"node_modules"` will be ignored immediately with ignore pattern `"node_modules/"`.
+     *
+     * There is a built-in cache about marked `File.Stat` in `glob`, so that we could not worry about the extra invocation of `this._mark()`
+     */
+    const marked = this._mark(abs);
+
+    if (this[IGNORE](marked)) {
+        return null;
+    }
+
+    return Sync.prototype._readdir.call(this, abs, inGlobStar);
+};
+
+
+module.exports = GlobSync;

node_modules/eslint/lib/util/hash.js

@@ -0,0 +1,35 @@
+/**
+ * @fileoverview Defining the hashing function in one place.
+ * @author Michael Ficarra
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const murmur = require("imurmurhash");
+
+//------------------------------------------------------------------------------
+// Helpers
+//------------------------------------------------------------------------------
+
+//------------------------------------------------------------------------------
+// Private
+//------------------------------------------------------------------------------
+
+/**
+ * hash the given string
+ * @param  {string} str the string to hash
+ * @returns {string}    the hash
+ */
+function hash(str) {
+    return murmur(str).result().toString(36);
+}
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+module.exports = hash;

node_modules/eslint/lib/util/ignored-paths.js

@@ -0,0 +1,381 @@
+/**
+ * @fileoverview Responsible for loading ignore config files and managing ignore patterns
+ * @author Jonathan Rajavuori
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const fs = require("fs"),
+    path = require("path"),
+    ignore = require("ignore"),
+    pathUtils = require("./path-utils");
+
+const debug = require("debug")("eslint:ignored-paths");
+
+//------------------------------------------------------------------------------
+// Constants
+//------------------------------------------------------------------------------
+
+const ESLINT_IGNORE_FILENAME = ".eslintignore";
+
+/**
+ * Adds `"*"` at the end of `"node_modules/"`,
+ * so that subtle directories could be re-included by .gitignore patterns
+ * such as `"!node_modules/should_not_ignored"`
+ */
+const DEFAULT_IGNORE_DIRS = [
+    "/node_modules/*",
+    "/bower_components/*"
+];
+const DEFAULT_OPTIONS = {
+    dotfiles: false,
+    cwd: process.cwd()
+};
+
+//------------------------------------------------------------------------------
+// Helpers
+//------------------------------------------------------------------------------
+
+/**
+ * Find a file in the current directory.
+ * @param {string} cwd Current working directory
+ * @param {string} name File name
+ * @returns {string} Path of ignore file or an empty string.
+ */
+function findFile(cwd, name) {
+    const ignoreFilePath = path.resolve(cwd, name);
+
+    return fs.existsSync(ignoreFilePath) && fs.statSync(ignoreFilePath).isFile() ? ignoreFilePath : "";
+}
+
+/**
+ * Find an ignore file in the current directory.
+ * @param {string} cwd Current working directory
+ * @returns {string} Path of ignore file or an empty string.
+ */
+function findIgnoreFile(cwd) {
+    return findFile(cwd, ESLINT_IGNORE_FILENAME);
+}
+
+/**
+ * Find an package.json file in the current directory.
+ * @param {string} cwd Current working directory
+ * @returns {string} Path of package.json file or an empty string.
+ */
+function findPackageJSONFile(cwd) {
+    return findFile(cwd, "package.json");
+}
+
+/**
+ * Merge options with defaults
+ * @param {Object} options Options to merge with DEFAULT_OPTIONS constant
+ * @returns {Object} Merged options
+ */
+function mergeDefaultOptions(options) {
+    return Object.assign({}, DEFAULT_OPTIONS, options);
+}
+
+/* eslint-disable valid-jsdoc */
+/**
+ * Normalize the path separators in a given string.
+ * On Windows environment, this replaces `\` by `/`.
+ * Otherwrise, this does nothing.
+ * @param {string} str The path string to normalize.
+ * @returns {string} The normalized path.
+ */
+const normalizePathSeps = path.sep === "/"
+    ? (str => str)
+    : ((seps, str) => str.replace(seps, "/")).bind(null, new RegExp(`\\${path.sep}`, "gu"));
+/* eslint-enable valid-jsdoc */
+
+/**
+ * Converts a glob pattern to a new glob pattern relative to a different directory
+ * @param {string} globPattern The glob pattern, relative the the old base directory
+ * @param {string} relativePathToOldBaseDir A relative path from the new base directory to the old one
+ * @returns {string} A glob pattern relative to the new base directory
+ */
+function relativize(globPattern, relativePathToOldBaseDir) {
+    if (relativePathToOldBaseDir === "") {
+        return globPattern;
+    }
+
+    const prefix = globPattern.startsWith("!") ? "!" : "";
+    const globWithoutPrefix = globPattern.replace(/^!/u, "");
+
+    if (globWithoutPrefix.startsWith("/")) {
+        return `${prefix}/${normalizePathSeps(relativePathToOldBaseDir)}${globWithoutPrefix}`;
+    }
+
+    return globPattern;
+}
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+/**
+ * IgnoredPaths class
+ */
+class IgnoredPaths {
+
+    /**
+     * @param {Object} providedOptions object containing 'ignore', 'ignorePath' and 'patterns' properties
+     */
+    constructor(providedOptions) {
+        const options = mergeDefaultOptions(providedOptions);
+
+        this.cache = {};
+
+        this.defaultPatterns = [].concat(DEFAULT_IGNORE_DIRS, options.patterns || []);
+
+        this.ignoreFileDir = options.ignore !== false && options.ignorePath
+            ? path.dirname(path.resolve(options.cwd, options.ignorePath))
+            : options.cwd;
+        this.options = options;
+        this._baseDir = null;
+
+        this.ig = {
+            custom: ignore(),
+            default: ignore()
+        };
+
+        this.defaultPatterns.forEach(pattern => this.addPatternRelativeToCwd(this.ig.default, pattern));
+        if (options.dotfiles !== true) {
+
+            /*
+             * ignore files beginning with a dot, but not files in a parent or
+             * ancestor directory (which in relative format will begin with `../`).
+             */
+            this.addPatternRelativeToCwd(this.ig.default, ".*");
+            this.addPatternRelativeToCwd(this.ig.default, "!../");
+        }
+
+        /*
+         * Add a way to keep track of ignored files.  This was present in node-ignore
+         * 2.x, but dropped for now as of 3.0.10.
+         */
+        this.ig.custom.ignoreFiles = [];
+        this.ig.default.ignoreFiles = [];
+
+        if (options.ignore !== false) {
+            let ignorePath;
+
+            if (options.ignorePath) {
+                debug("Using specific ignore file");
+
+                try {
+                    fs.statSync(options.ignorePath);
+                    ignorePath = options.ignorePath;
+                } catch (e) {
+                    e.message = `Cannot read ignore file: ${options.ignorePath}\nError: ${e.message}`;
+                    throw e;
+                }
+            } else {
+                debug(`Looking for ignore file in ${options.cwd}`);
+                ignorePath = findIgnoreFile(options.cwd);
+
+                try {
+                    fs.statSync(ignorePath);
+                    debug(`Loaded ignore file ${ignorePath}`);
+                } catch (e) {
+                    debug("Could not find ignore file in cwd");
+                }
+            }
+
+            if (ignorePath) {
+                debug(`Adding ${ignorePath}`);
+                this.addIgnoreFile(this.ig.custom, ignorePath);
+                this.addIgnoreFile(this.ig.default, ignorePath);
+            } else {
+                try {
+
+                    // if the ignoreFile does not exist, check package.json for eslintIgnore
+                    const packageJSONPath = findPackageJSONFile(options.cwd);
+
+                    if (packageJSONPath) {
+                        let packageJSONOptions;
+
+                        try {
+                            packageJSONOptions = JSON.parse(fs.readFileSync(packageJSONPath, "utf8"));
+                        } catch (e) {
+                            debug("Could not read package.json file to check eslintIgnore property");
+                            e.messageTemplate = "failed-to-read-json";
+                            e.messageData = {
+                                path: packageJSONPath,
+                                message: e.message
+                            };
+                            throw e;
+                        }
+
+                        if (packageJSONOptions.eslintIgnore) {
+                            if (Array.isArray(packageJSONOptions.eslintIgnore)) {
+                                packageJSONOptions.eslintIgnore.forEach(pattern => {
+                                    this.addPatternRelativeToIgnoreFile(this.ig.custom, pattern);
+                                    this.addPatternRelativeToIgnoreFile(this.ig.default, pattern);
+                                });
+                            } else {
+                                throw new TypeError("Package.json eslintIgnore property requires an array of paths");
+                            }
+                        }
+                    }
+                } catch (e) {
+                    debug("Could not find package.json to check eslintIgnore property");
+                    throw e;
+                }
+            }
+
+            if (options.ignorePattern) {
+                this.addPatternRelativeToCwd(this.ig.custom, options.ignorePattern);
+                this.addPatternRelativeToCwd(this.ig.default, options.ignorePattern);
+            }
+        }
+    }
+
+    /*
+     * If `ignoreFileDir` is a subdirectory of `cwd`, all paths will be normalized to be relative to `cwd`.
+     * Otherwise, all paths will be normalized to be relative to `ignoreFileDir`.
+     * This ensures that the final normalized ignore rule will not contain `..`, which is forbidden in
+     * ignore rules.
+     */
+
+    addPatternRelativeToCwd(ig, pattern) {
+        const baseDir = this.getBaseDir();
+        const cookedPattern = baseDir === this.options.cwd
+            ? pattern
+            : relativize(pattern, path.relative(baseDir, this.options.cwd));
+
+        ig.addPattern(cookedPattern);
+        debug("addPatternRelativeToCwd:\n  original = %j\n  cooked   = %j", pattern, cookedPattern);
+    }
+
+    addPatternRelativeToIgnoreFile(ig, pattern) {
+        const baseDir = this.getBaseDir();
+        const cookedPattern = baseDir === this.ignoreFileDir
+            ? pattern
+            : relativize(pattern, path.relative(baseDir, this.ignoreFileDir));
+
+        ig.addPattern(cookedPattern);
+        debug("addPatternRelativeToIgnoreFile:\n  original = %j\n  cooked   = %j", pattern, cookedPattern);
+    }
+
+    // Detect the common ancestor
+    getBaseDir() {
+        if (!this._baseDir) {
+            const a = path.resolve(this.options.cwd);
+            const b = path.resolve(this.ignoreFileDir);
+            let lastSepPos = 0;
+
+            // Set the shorter one (it's the common ancestor if one includes the other).
+            this._baseDir = a.length < b.length ? a : b;
+
+            // Set the common ancestor.
+            for (let i = 0; i < a.length && i < b.length; ++i) {
+                if (a[i] !== b[i]) {
+                    this._baseDir = a.slice(0, lastSepPos);
+                    break;
+                }
+                if (a[i] === path.sep) {
+                    lastSepPos = i;
+                }
+            }
+
+            // If it's only Windows drive letter, it needs \
+            if (/^[A-Z]:$/u.test(this._baseDir)) {
+                this._baseDir += "\\";
+            }
+
+            debug("baseDir = %j", this._baseDir);
+        }
+        return this._baseDir;
+    }
+
+    /**
+     * read ignore filepath
+     * @param {string} filePath, file to add to ig
+     * @returns {Array} raw ignore rules
+     */
+    readIgnoreFile(filePath) {
+        if (typeof this.cache[filePath] === "undefined") {
+            this.cache[filePath] = fs.readFileSync(filePath, "utf8").split(/\r?\n/gu).filter(Boolean);
+        }
+        return this.cache[filePath];
+    }
+
+    /**
+     * add ignore file to node-ignore instance
+     * @param {Object} ig instance of node-ignore
+     * @param {string} filePath file to add to ig
+     * @returns {void}
+     */
+    addIgnoreFile(ig, filePath) {
+        ig.ignoreFiles.push(filePath);
+        this
+            .readIgnoreFile(filePath)
+            .forEach(ignoreRule => this.addPatternRelativeToIgnoreFile(ig, ignoreRule));
+    }
+
+    /**
+     * Determine whether a file path is included in the default or custom ignore patterns
+     * @param {string} filepath Path to check
+     * @param {string} [category=undefined] check 'default', 'custom' or both (undefined)
+     * @returns {boolean} true if the file path matches one or more patterns, false otherwise
+     */
+    contains(filepath, category) {
+
+        let result = false;
+        const absolutePath = path.resolve(this.options.cwd, filepath);
+        const relativePath = pathUtils.getRelativePath(absolutePath, this.getBaseDir());
+
+        if (typeof category === "undefined") {
+            result = (this.ig.default.filter([relativePath]).length === 0) ||
+                (this.ig.custom.filter([relativePath]).length === 0);
+        } else {
+            result = (this.ig[category].filter([relativePath]).length === 0);
+        }
+        debug("contains:");
+        debug("  target = %j", filepath);
+        debug("  result = %j", result);
+
+        return result;
+
+    }
+
+    /**
+     * Returns a list of dir patterns for glob to ignore
+     * @returns {function()} method to check whether a folder should be ignored by glob.
+     */
+    getIgnoredFoldersGlobChecker() {
+        const baseDir = this.getBaseDir();
+        const ig = ignore();
+
+        DEFAULT_IGNORE_DIRS.forEach(ignoreDir => this.addPatternRelativeToCwd(ig, ignoreDir));
+
+        if (this.options.dotfiles !== true) {
+
+            // Ignore hidden folders.  (This cannot be ".*", or else it's not possible to unignore hidden files)
+            ig.add([".*/*", "!../*"]);
+        }
+
+        if (this.options.ignore) {
+            ig.add(this.ig.custom);
+        }
+
+        const filter = ig.createFilter();
+
+        return function(absolutePath) {
+            const relative = pathUtils.getRelativePath(absolutePath, baseDir);
+
+            if (!relative) {
+                return false;
+            }
+
+            return !filter(relative);
+        };
+    }
+}
+
+module.exports = IgnoredPaths;

node_modules/eslint/lib/util/interpolate.js

@@ -0,0 +1,28 @@
+/**
+ * @fileoverview Interpolate keys from an object into a string with {{ }} markers.
+ * @author Jed Fox
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+module.exports = (text, data) => {
+    if (!data) {
+        return text;
+    }
+
+    // Substitution content for any {{ }} markers.
+    return text.replace(/\{\{([^{}]+?)\}\}/gu, (fullMatch, termWithWhitespace) => {
+        const term = termWithWhitespace.trim();
+
+        if (term in data) {
+            return data[term];
+        }
+
+        // Preserve old behavior: If parameter name not provided, don't replace it.
+        return fullMatch;
+    });
+};

node_modules/eslint/lib/util/keywords.js

@@ -0,0 +1,67 @@
+/**
+ * @fileoverview A shared list of ES3 keywords.
+ * @author Josh Perez
+ */
+"use strict";
+
+module.exports = [
+    "abstract",
+    "boolean",
+    "break",
+    "byte",
+    "case",
+    "catch",
+    "char",
+    "class",
+    "const",
+    "continue",
+    "debugger",
+    "default",
+    "delete",
+    "do",
+    "double",
+    "else",
+    "enum",
+    "export",
+    "extends",
+    "false",
+    "final",
+    "finally",
+    "float",
+    "for",
+    "function",
+    "goto",
+    "if",
+    "implements",
+    "import",
+    "in",
+    "instanceof",
+    "int",
+    "interface",
+    "long",
+    "native",
+    "new",
+    "null",
+    "package",
+    "private",
+    "protected",
+    "public",
+    "return",
+    "short",
+    "static",
+    "super",
+    "switch",
+    "synchronized",
+    "this",
+    "throw",
+    "throws",
+    "transient",
+    "true",
+    "try",
+    "typeof",
+    "var",
+    "void",
+    "volatile",
+    "while",
+    "with"
+];

node_modules/eslint/lib/util/lint-result-cache.js

@@ -0,0 +1,146 @@
+/**
+ * @fileoverview Utility for caching lint results.
+ * @author Kevin Partington
+ */
+"use strict";
+
+//-----------------------------------------------------------------------------
+// Requirements
+//-----------------------------------------------------------------------------
+
+const assert = require("assert"),
+    fs = require("fs"),
+    fileEntryCache = require("file-entry-cache"),
+    hash = require("./hash"),
+    pkg = require("../../package.json"),
+    stringify = require("json-stable-stringify-without-jsonify");
+
+//-----------------------------------------------------------------------------
+// Helpers
+//-----------------------------------------------------------------------------
+
+const configHashCache = new WeakMap();
+
+/**
+ * Calculates the hash of the config file used to validate a given file
+ * @param {Object} configHelper The config helper for retrieving configuration information
+ * @param {string} filename The path of the file to retrieve a config object for to calculate the hash
+ * @returns {string} The hash of the config
+ */
+function hashOfConfigFor(configHelper, filename) {
+    const config = configHelper.getConfig(filename);
+
+    if (!configHashCache.has(config)) {
+        configHashCache.set(config, hash(`${pkg.version}_${stringify(config)}`));
+    }
+
+    return configHashCache.get(config);
+}
+
+//-----------------------------------------------------------------------------
+// Public Interface
+//-----------------------------------------------------------------------------
+
+/**
+ * Lint result cache. This wraps around the file-entry-cache module,
+ * transparently removing properties that are difficult or expensive to
+ * serialize and adding them back in on retrieval.
+ */
+class LintResultCache {
+
+    /**
+     * Creates a new LintResultCache instance.
+     * @constructor
+     * @param {string} cacheFileLocation The cache file location.
+     * @param {Object} configHelper The configuration helper (used for
+     *   configuration lookup by file path).
+     */
+    constructor(cacheFileLocation, configHelper) {
+        assert(cacheFileLocation, "Cache file location is required");
+        assert(configHelper, "Config helper is required");
+
+        this.fileEntryCache = fileEntryCache.create(cacheFileLocation);
+        this.configHelper = configHelper;
+    }
+
+    /**
+     * Retrieve cached lint results for a given file path, if present in the
+     * cache. If the file is present and has not been changed, rebuild any
+     * missing result information.
+     * @param {string} filePath The file for which to retrieve lint results.
+     * @returns {Object|null} The rebuilt lint results, or null if the file is
+     *   changed or not in the filesystem.
+     */
+    getCachedLintResults(filePath) {
+
+        /*
+         * Cached lint results are valid if and only if:
+         * 1. The file is present in the filesystem
+         * 2. The file has not changed since the time it was previously linted
+         * 3. The ESLint configuration has not changed since the time the file
+         *    was previously linted
+         * If any of these are not true, we will not reuse the lint results.
+         */
+
+        const fileDescriptor = this.fileEntryCache.getFileDescriptor(filePath);
+        const hashOfConfig = hashOfConfigFor(this.configHelper, filePath);
+        const changed = fileDescriptor.changed || fileDescriptor.meta.hashOfConfig !== hashOfConfig;
+
+        if (fileDescriptor.notFound || changed) {
+            return null;
+        }
+
+        // If source is present but null, need to reread the file from the filesystem.
+        if (fileDescriptor.meta.results && fileDescriptor.meta.results.source === null) {
+            fileDescriptor.meta.results.source = fs.readFileSync(filePath, "utf-8");
+        }
+
+        return fileDescriptor.meta.results;
+    }
+
+    /**
+     * Set the cached lint results for a given file path, after removing any
+     * information that will be both unnecessary and difficult to serialize.
+     * Avoids caching results with an "output" property (meaning fixes were
+     * applied), to prevent potentially incorrect results if fixes are not
+     * written to disk.
+     * @param {string} filePath The file for which to set lint results.
+     * @param {Object} result The lint result to be set for the file.
+     * @returns {void}
+     */
+    setCachedLintResults(filePath, result) {
+        if (result && Object.prototype.hasOwnProperty.call(result, "output")) {
+            return;
+        }
+
+        const fileDescriptor = this.fileEntryCache.getFileDescriptor(filePath);
+
+        if (fileDescriptor && !fileDescriptor.notFound) {
+
+            // Serialize the result, except that we want to remove the file source if present.
+            const resultToSerialize = Object.assign({}, result);
+
+            /*
+             * Set result.source to null.
+             * In `getCachedLintResults`, if source is explicitly null, we will
+             * read the file from the filesystem to set the value again.
+             */
+            if (Object.prototype.hasOwnProperty.call(resultToSerialize, "source")) {
+                resultToSerialize.source = null;
+            }
+
+            fileDescriptor.meta.results = resultToSerialize;
+            fileDescriptor.meta.hashOfConfig = hashOfConfigFor(this.configHelper, result.filePath);
+        }
+    }
+
+    /**
+     * Persists the in-memory cache to disk.
+     * @returns {void}
+     */
+    reconcile() {
+        this.fileEntryCache.reconcile();
+    }
+}
+
+module.exports = LintResultCache;

node_modules/eslint/lib/util/logging.js

@@ -0,0 +1,28 @@
+/**
+ * @fileoverview Handle logging for ESLint
+ * @author Gyandeep Singh
+ */
+
+"use strict";
+
+/* eslint no-console: "off" */
+
+/* istanbul ignore next */
+module.exports = {
+
+    /**
+     * Cover for console.log
+     * @returns {void}
+     */
+    info(...args) {
+        console.log(...args);
+    },
+
+    /**
+     * Cover for console.error
+     * @returns {void}
+     */
+    error(...args) {
+        console.error(...args);
+    }
+};

node_modules/eslint/lib/util/module-resolver.js

@@ -0,0 +1,83 @@
+/**
+ * @fileoverview Implements the Node.js require.resolve algorithm
+ * @author Nicholas C. Zakas
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const Module = require("module");
+
+//------------------------------------------------------------------------------
+// Private
+//------------------------------------------------------------------------------
+
+const DEFAULT_OPTIONS = {
+
+    /*
+     * module.paths is an array of paths to search for resolving things relative
+     * to this file. Module.globalPaths contains all of the special Node.js
+     * directories that can also be searched for modules.
+     *
+     * Need to check for existence of module.paths because Jest seems not to
+     * include it. See https://github.com/eslint/eslint/issues/5791.
+     */
+    lookupPaths: module.paths ? module.paths.concat(Module.globalPaths) : Module.globalPaths.concat()
+};
+
+/**
+ * Resolves modules based on a set of options.
+ */
+class ModuleResolver {
+
+    /**
+     * Resolves modules based on a set of options.
+     * @param {Object} options The options for resolving modules.
+     * @param {string[]} options.lookupPaths An array of paths to include in the
+     *      lookup with the highest priority paths coming first.
+     */
+    constructor(options) {
+        this.options = Object.assign({}, DEFAULT_OPTIONS, options || {});
+    }
+
+    /**
+     * Resolves the file location of a given module relative to the configured
+     * lookup paths.
+     * @param {string} name The module name to resolve.
+     * @param {string} extraLookupPath An extra path to look into for the module.
+     *      This path is used with the highest priority.
+     * @returns {string} The resolved file path for the module.
+     * @throws {Error} If the module cannot be resolved.
+     */
+    resolve(name, extraLookupPath) {
+
+        /*
+         * First, clone the lookup paths so we're not messing things up for
+         * subsequent calls to this function. Then, move the extraLookupPath to the
+         * top of the lookup paths list so it will be searched first.
+         */
+        const lookupPaths = [extraLookupPath, ...this.options.lookupPaths];
+
+        /**
+         * Module._findPath is an internal method to Node.js, then one they use to
+         * lookup file paths when require() is called. So, we are hooking into the
+         * exact same logic that Node.js uses.
+         */
+        const result = Module._findPath(name, lookupPaths); // eslint-disable-line no-underscore-dangle
+
+        if (!result) {
+            throw new Error(`Cannot find module '${name}'`);
+        }
+
+        return result;
+    }
+}
+
+//------------------------------------------------------------------------------
+// Public API
+//------------------------------------------------------------------------------
+
+module.exports = ModuleResolver;

node_modules/eslint/lib/util/naming.js

@@ -0,0 +1,107 @@
+/**
+ * @fileoverview Common helpers for naming of plugins, formatters and configs
+ */
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const pathUtils = require("../util/path-utils");
+
+//------------------------------------------------------------------------------
+// Private
+//------------------------------------------------------------------------------
+
+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.indexOf("\\") > -1) {
+        normalizedName = pathUtils.convertPathToPosix(normalizedName);
+    }
+
+    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}-$2`);
+        }
+    } else if (normalizedName.indexOf(`${prefix}-`) !== 0) {
+        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 namepace of the term if it has one.
+ */
+function getNamespaceFromTerm(term) {
+    const match = term.match(NAMESPACE_REGEX);
+
+    return match ? match[0] : "";
+}
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+module.exports = {
+    normalizePackageName,
+    getShorthandName,
+    getNamespaceFromTerm
+};

node_modules/eslint/lib/util/node-event-generator.js

@@ -0,0 +1,308 @@
+/**
+ * @fileoverview The event generator for AST nodes.
+ * @author Toru Nagashima
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const esquery = require("esquery");
+const lodash = require("lodash");
+
+//------------------------------------------------------------------------------
+// Typedefs
+//------------------------------------------------------------------------------
+
+/**
+ * An object describing an AST selector
+ * @typedef {Object} ASTSelector
+ * @property {string} rawSelector The string that was parsed into this selector
+ * @property {boolean} isExit `true` if this should be emitted when exiting the node rather than when entering
+ * @property {Object} parsedSelector An object (from esquery) describing the matching behavior of the selector
+ * @property {string[]|null} listenerTypes A list of node types that could possibly cause the selector to match,
+ * or `null` if all node types could cause a match
+ * @property {number} attributeCount The total number of classes, pseudo-classes, and attribute queries in this selector
+ * @property {number} identifierCount The total number of identifier queries in this selector
+ */
+
+//------------------------------------------------------------------------------
+// Helpers
+//------------------------------------------------------------------------------
+
+/**
+ * Gets the possible types of a selector
+ * @param {Object} parsedSelector An object (from esquery) describing the matching behavior of the selector
+ * @returns {string[]|null} The node types that could possibly trigger this selector, or `null` if all node types could trigger it
+ */
+function getPossibleTypes(parsedSelector) {
+    switch (parsedSelector.type) {
+        case "identifier":
+            return [parsedSelector.value];
+
+        case "matches": {
+            const typesForComponents = parsedSelector.selectors.map(getPossibleTypes);
+
+            if (typesForComponents.every(Boolean)) {
+                return lodash.union(...typesForComponents);
+            }
+            return null;
+        }
+
+        case "compound": {
+            const typesForComponents = parsedSelector.selectors.map(getPossibleTypes).filter(typesForComponent => typesForComponent);
+
+            // If all of the components could match any type, then the compound could also match any type.
+            if (!typesForComponents.length) {
+                return null;
+            }
+
+            /*
+             * If at least one of the components could only match a particular type, the compound could only match
+             * the intersection of those types.
+             */
+            return lodash.intersection(...typesForComponents);
+        }
+
+        case "child":
+        case "descendant":
+        case "sibling":
+        case "adjacent":
+            return getPossibleTypes(parsedSelector.right);
+
+        default:
+            return null;
+
+    }
+}
+
+/**
+ * Counts the number of class, pseudo-class, and attribute queries in this selector
+ * @param {Object} parsedSelector An object (from esquery) describing the selector's matching behavior
+ * @returns {number} The number of class, pseudo-class, and attribute queries in this selector
+ */
+function countClassAttributes(parsedSelector) {
+    switch (parsedSelector.type) {
+        case "child":
+        case "descendant":
+        case "sibling":
+        case "adjacent":
+            return countClassAttributes(parsedSelector.left) + countClassAttributes(parsedSelector.right);
+
+        case "compound":
+        case "not":
+        case "matches":
+            return parsedSelector.selectors.reduce((sum, childSelector) => sum + countClassAttributes(childSelector), 0);
+
+        case "attribute":
+        case "field":
+        case "nth-child":
+        case "nth-last-child":
+            return 1;
+
+        default:
+            return 0;
+    }
+}
+
+/**
+ * Counts the number of identifier queries in this selector
+ * @param {Object} parsedSelector An object (from esquery) describing the selector's matching behavior
+ * @returns {number} The number of identifier queries
+ */
+function countIdentifiers(parsedSelector) {
+    switch (parsedSelector.type) {
+        case "child":
+        case "descendant":
+        case "sibling":
+        case "adjacent":
+            return countIdentifiers(parsedSelector.left) + countIdentifiers(parsedSelector.right);
+
+        case "compound":
+        case "not":
+        case "matches":
+            return parsedSelector.selectors.reduce((sum, childSelector) => sum + countIdentifiers(childSelector), 0);
+
+        case "identifier":
+            return 1;
+
+        default:
+            return 0;
+    }
+}
+
+/**
+ * Compares the specificity of two selector objects, with CSS-like rules.
+ * @param {ASTSelector} selectorA An AST selector descriptor
+ * @param {ASTSelector} selectorB Another AST selector descriptor
+ * @returns {number}
+ * a value less than 0 if selectorA is less specific than selectorB
+ * a value greater than 0 if selectorA is more specific than selectorB
+ * a value less than 0 if selectorA and selectorB have the same specificity, and selectorA <= selectorB alphabetically
+ * a value greater than 0 if selectorA and selectorB have the same specificity, and selectorA > selectorB alphabetically
+ */
+function compareSpecificity(selectorA, selectorB) {
+    return selectorA.attributeCount - selectorB.attributeCount ||
+        selectorA.identifierCount - selectorB.identifierCount ||
+        (selectorA.rawSelector <= selectorB.rawSelector ? -1 : 1);
+}
+
+/**
+ * Parses a raw selector string, and throws a useful error if parsing fails.
+ * @param {string} rawSelector A raw AST selector
+ * @returns {Object} An object (from esquery) describing the matching behavior of this selector
+ * @throws {Error} An error if the selector is invalid
+ */
+function tryParseSelector(rawSelector) {
+    try {
+        return esquery.parse(rawSelector.replace(/:exit$/u, ""));
+    } catch (err) {
+        if (typeof err.offset === "number") {
+            throw new SyntaxError(`Syntax error in selector "${rawSelector}" at position ${err.offset}: ${err.message}`);
+        }
+        throw err;
+    }
+}
+
+/**
+ * Parses a raw selector string, and returns the parsed selector along with specificity and type information.
+ * @param {string} rawSelector A raw AST selector
+ * @returns {ASTSelector} A selector descriptor
+ */
+const parseSelector = lodash.memoize(rawSelector => {
+    const parsedSelector = tryParseSelector(rawSelector);
+
+    return {
+        rawSelector,
+        isExit: rawSelector.endsWith(":exit"),
+        parsedSelector,
+        listenerTypes: getPossibleTypes(parsedSelector),
+        attributeCount: countClassAttributes(parsedSelector),
+        identifierCount: countIdentifiers(parsedSelector)
+    };
+});
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+/**
+ * The event generator for AST nodes.
+ * This implements below interface.
+ *
+ * ```ts
+ * interface EventGenerator {
+ *     emitter: SafeEmitter;
+ *     enterNode(node: ASTNode): void;
+ *     leaveNode(node: ASTNode): void;
+ * }
+ * ```
+ */
+class NodeEventGenerator {
+
+    /**
+     * @param {SafeEmitter} emitter
+     * An SafeEmitter which is the destination of events. This emitter must already
+     * have registered listeners for all of the events that it needs to listen for.
+     * (See lib/util/safe-emitter.js for more details on `SafeEmitter`.)
+     * @returns {NodeEventGenerator} new instance
+     */
+    constructor(emitter) {
+        this.emitter = emitter;
+        this.currentAncestry = [];
+        this.enterSelectorsByNodeType = new Map();
+        this.exitSelectorsByNodeType = new Map();
+        this.anyTypeEnterSelectors = [];
+        this.anyTypeExitSelectors = [];
+
+        emitter.eventNames().forEach(rawSelector => {
+            const selector = parseSelector(rawSelector);
+
+            if (selector.listenerTypes) {
+                selector.listenerTypes.forEach(nodeType => {
+                    const typeMap = selector.isExit ? this.exitSelectorsByNodeType : this.enterSelectorsByNodeType;
+
+                    if (!typeMap.has(nodeType)) {
+                        typeMap.set(nodeType, []);
+                    }
+                    typeMap.get(nodeType).push(selector);
+                });
+            } else {
+                (selector.isExit ? this.anyTypeExitSelectors : this.anyTypeEnterSelectors).push(selector);
+            }
+        });
+
+        this.anyTypeEnterSelectors.sort(compareSpecificity);
+        this.anyTypeExitSelectors.sort(compareSpecificity);
+        this.enterSelectorsByNodeType.forEach(selectorList => selectorList.sort(compareSpecificity));
+        this.exitSelectorsByNodeType.forEach(selectorList => selectorList.sort(compareSpecificity));
+    }
+
+    /**
+     * Checks a selector against a node, and emits it if it matches
+     * @param {ASTNode} node The node to check
+     * @param {ASTSelector} selector An AST selector descriptor
+     * @returns {void}
+     */
+    applySelector(node, selector) {
+        if (esquery.matches(node, selector.parsedSelector, this.currentAncestry)) {
+            this.emitter.emit(selector.rawSelector, node);
+        }
+    }
+
+    /**
+     * Applies all appropriate selectors to a node, in specificity order
+     * @param {ASTNode} node The node to check
+     * @param {boolean} isExit `false` if the node is currently being entered, `true` if it's currently being exited
+     * @returns {void}
+     */
+    applySelectors(node, isExit) {
+        const selectorsByNodeType = (isExit ? this.exitSelectorsByNodeType : this.enterSelectorsByNodeType).get(node.type) || [];
+        const anyTypeSelectors = isExit ? this.anyTypeExitSelectors : this.anyTypeEnterSelectors;
+
+        /*
+         * selectorsByNodeType and anyTypeSelectors were already sorted by specificity in the constructor.
+         * Iterate through each of them, applying selectors in the right order.
+         */
+        let selectorsByTypeIndex = 0;
+        let anyTypeSelectorsIndex = 0;
+
+        while (selectorsByTypeIndex < selectorsByNodeType.length || anyTypeSelectorsIndex < anyTypeSelectors.length) {
+            if (
+                selectorsByTypeIndex >= selectorsByNodeType.length ||
+                anyTypeSelectorsIndex < anyTypeSelectors.length &&
+                compareSpecificity(anyTypeSelectors[anyTypeSelectorsIndex], selectorsByNodeType[selectorsByTypeIndex]) < 0
+            ) {
+                this.applySelector(node, anyTypeSelectors[anyTypeSelectorsIndex++]);
+            } else {
+                this.applySelector(node, selectorsByNodeType[selectorsByTypeIndex++]);
+            }
+        }
+    }
+
+    /**
+     * Emits an event of entering AST node.
+     * @param {ASTNode} node - A node which was entered.
+     * @returns {void}
+     */
+    enterNode(node) {
+        if (node.parent) {
+            this.currentAncestry.unshift(node.parent);
+        }
+        this.applySelectors(node, false);
+    }
+
+    /**
+     * Emits an event of leaving AST node.
+     * @param {ASTNode} node - A node which was left.
+     * @returns {void}
+     */
+    leaveNode(node) {
+        this.applySelectors(node, true);
+        this.currentAncestry.shift();
+    }
+}
+
+module.exports = NodeEventGenerator;

node_modules/eslint/lib/util/npm-utils.js

@@ -0,0 +1,183 @@
+/**
+ * @fileoverview Utility for executing npm commands.
+ * @author Ian VanSchooten
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const fs = require("fs"),
+    spawn = require("cross-spawn"),
+    path = require("path"),
+    log = require("./logging");
+
+//------------------------------------------------------------------------------
+// Helpers
+//------------------------------------------------------------------------------
+
+/**
+ * Find the closest package.json file, starting at process.cwd (by default),
+ * and working up to root.
+ *
+ * @param   {string} [startDir=process.cwd()] Starting directory
+ * @returns {string}                          Absolute path to closest package.json file
+ */
+function findPackageJson(startDir) {
+    let dir = path.resolve(startDir || process.cwd());
+
+    do {
+        const pkgFile = path.join(dir, "package.json");
+
+        if (!fs.existsSync(pkgFile) || !fs.statSync(pkgFile).isFile()) {
+            dir = path.join(dir, "..");
+            continue;
+        }
+        return pkgFile;
+    } while (dir !== path.resolve(dir, ".."));
+    return null;
+}
+
+//------------------------------------------------------------------------------
+// Private
+//------------------------------------------------------------------------------
+
+/**
+ * Install node modules synchronously and save to devDependencies in package.json
+ * @param   {string|string[]} packages Node module or modules to install
+ * @returns {void}
+ */
+function installSyncSaveDev(packages) {
+    const packageList = Array.isArray(packages) ? packages : [packages];
+    const npmProcess = spawn.sync("npm", ["i", "--save-dev"].concat(packageList),
+        { stdio: "inherit" });
+    const error = npmProcess.error;
+
+    if (error && error.code === "ENOENT") {
+        const pluralS = packageList.length > 1 ? "s" : "";
+
+        log.error(`Could not execute npm. Please install the following package${pluralS} with a package manager of your choice: ${packageList.join(", ")}`);
+    }
+}
+
+/**
+ * Fetch `peerDependencies` of the given package by `npm show` command.
+ * @param {string} packageName The package name to fetch peerDependencies.
+ * @returns {Object} Gotten peerDependencies. Returns null if npm was not found.
+ */
+function fetchPeerDependencies(packageName) {
+    const npmProcess = spawn.sync(
+        "npm",
+        ["show", "--json", packageName, "peerDependencies"],
+        { encoding: "utf8" }
+    );
+
+    const error = npmProcess.error;
+
+    if (error && error.code === "ENOENT") {
+        return null;
+    }
+    const fetchedText = npmProcess.stdout.trim();
+
+    return JSON.parse(fetchedText || "{}");
+
+
+}
+
+/**
+ * Check whether node modules are include in a project's package.json.
+ *
+ * @param   {string[]} packages           Array of node module names
+ * @param   {Object}  opt                 Options Object
+ * @param   {boolean} opt.dependencies    Set to true to check for direct dependencies
+ * @param   {boolean} opt.devDependencies Set to true to check for development dependencies
+ * @param   {boolean} opt.startdir        Directory to begin searching from
+ * @returns {Object}                      An object whose keys are the module names
+ *                                        and values are booleans indicating installation.
+ */
+function check(packages, opt) {
+    let deps = [];
+    const pkgJson = (opt) ? findPackageJson(opt.startDir) : findPackageJson();
+    let fileJson;
+
+    if (!pkgJson) {
+        throw new Error("Could not find a package.json file. Run 'npm init' to create one.");
+    }
+
+    try {
+        fileJson = JSON.parse(fs.readFileSync(pkgJson, "utf8"));
+    } catch (e) {
+        const error = new Error(e);
+
+        error.messageTemplate = "failed-to-read-json";
+        error.messageData = {
+            path: pkgJson,
+            message: e.message
+        };
+        throw error;
+    }
+
+    if (opt.devDependencies && typeof fileJson.devDependencies === "object") {
+        deps = deps.concat(Object.keys(fileJson.devDependencies));
+    }
+    if (opt.dependencies && typeof fileJson.dependencies === "object") {
+        deps = deps.concat(Object.keys(fileJson.dependencies));
+    }
+    return packages.reduce((status, pkg) => {
+        status[pkg] = deps.indexOf(pkg) !== -1;
+        return status;
+    }, {});
+}
+
+/**
+ * Check whether node modules are included in the dependencies of a project's
+ * package.json.
+ *
+ * Convienience wrapper around check().
+ *
+ * @param   {string[]} packages  Array of node modules to check.
+ * @param   {string}   rootDir   The directory contianing a package.json
+ * @returns {Object}             An object whose keys are the module names
+ *                               and values are booleans indicating installation.
+ */
+function checkDeps(packages, rootDir) {
+    return check(packages, { dependencies: true, startDir: rootDir });
+}
+
+/**
+ * Check whether node modules are included in the devDependencies of a project's
+ * package.json.
+ *
+ * Convienience wrapper around check().
+ *
+ * @param   {string[]} packages  Array of node modules to check.
+ * @returns {Object}             An object whose keys are the module names
+ *                               and values are booleans indicating installation.
+ */
+function checkDevDeps(packages) {
+    return check(packages, { devDependencies: true });
+}
+
+/**
+ * Check whether package.json is found in current path.
+ *
+ * @param   {string=} startDir Starting directory
+ * @returns {boolean} Whether a package.json is found in current path.
+ */
+function checkPackageJson(startDir) {
+    return !!findPackageJson(startDir);
+}
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+module.exports = {
+    installSyncSaveDev,
+    fetchPeerDependencies,
+    checkDeps,
+    checkDevDeps,
+    checkPackageJson
+};

node_modules/eslint/lib/util/path-utils.js

@@ -0,0 +1,72 @@
+/**
+ * @fileoverview Common helpers for operations on filenames and paths
+ * @author Ian VanSchooten
+ */
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const path = require("path");
+
+//------------------------------------------------------------------------------
+// Private
+//------------------------------------------------------------------------------
+
+/**
+ * Replace Windows with posix style paths
+ *
+ * @param {string} filepath   Path to convert
+ * @returns {string}          Converted filepath
+ */
+function convertPathToPosix(filepath) {
+    const normalizedFilepath = path.normalize(filepath);
+    const posixFilepath = normalizedFilepath.replace(/\\/gu, "/");
+
+    return posixFilepath;
+}
+
+/**
+ * Converts an absolute filepath to a relative path from a given base path
+ *
+ * For example, if the filepath is `/my/awesome/project/foo.bar`,
+ * and the base directory is `/my/awesome/project/`,
+ * then this function should return `foo.bar`.
+ *
+ * path.relative() does something similar, but it requires a baseDir (`from` argument).
+ * This function makes it optional and just removes a leading slash if the baseDir is not given.
+ *
+ * It does not take into account symlinks (for now).
+ *
+ * @param {string} filepath  Path to convert to relative path.  If already relative,
+ *                           it will be assumed to be relative to process.cwd(),
+ *                           converted to absolute, and then processed.
+ * @param {string} [baseDir] Absolute base directory to resolve the filepath from.
+ *                           If not provided, all this function will do is remove
+ *                           a leading slash.
+ * @returns {string} Relative filepath
+ */
+function getRelativePath(filepath, baseDir) {
+    const absolutePath = path.isAbsolute(filepath)
+        ? filepath
+        : path.resolve(filepath);
+
+    if (baseDir) {
+        if (!path.isAbsolute(baseDir)) {
+            throw new Error(`baseDir should be an absolute path: ${baseDir}`);
+        }
+        return path.relative(baseDir, absolutePath);
+    }
+    return absolutePath.replace(/^\//u, "");
+
+}
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+module.exports = {
+    convertPathToPosix,
+    getRelativePath
+};

node_modules/eslint/lib/util/report-translator.js

@@ -0,0 +1,281 @@
+/**
+ * @fileoverview A helper that translates context.report() calls from the rule API into generic problem objects
+ * @author Teddy Katz
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const assert = require("assert");
+const ruleFixer = require("./rule-fixer");
+const interpolate = require("./interpolate");
+
+//------------------------------------------------------------------------------
+// Typedefs
+//------------------------------------------------------------------------------
+
+/**
+ * An error message description
+ * @typedef {Object} MessageDescriptor
+ * @property {ASTNode} [node] The reported node
+ * @property {Location} loc The location of the problem.
+ * @property {string} message The problem message.
+ * @property {Object} [data] Optional data to use to fill in placeholders in the
+ *      message.
+ * @property {Function} [fix] The function to call that creates a fix command.
+ */
+
+/**
+ * Information about the report
+ * @typedef {Object} ReportInfo
+ * @property {string} ruleId
+ * @property {(0|1|2)} severity
+ * @property {(string|undefined)} message
+ * @property {(string|undefined)} messageId
+ * @property {number} line
+ * @property {number} column
+ * @property {(number|undefined)} endLine
+ * @property {(number|undefined)} endColumn
+ * @property {(string|null)} nodeType
+ * @property {string} source
+ * @property {({text: string, range: (number[]|null)}|null)} fix
+ */
+
+//------------------------------------------------------------------------------
+// Module Definition
+//------------------------------------------------------------------------------
+
+
+/**
+ * Translates a multi-argument context.report() call into a single object argument call
+ * @param {...*} args A list of arguments passed to `context.report`
+ * @returns {MessageDescriptor} A normalized object containing report information
+ */
+function normalizeMultiArgReportCall(...args) {
+
+    // If there is one argument, it is considered to be a new-style call already.
+    if (args.length === 1) {
+
+        // Shallow clone the object to avoid surprises if reusing the descriptor
+        return Object.assign({}, args[0]);
+    }
+
+    // If the second argument is a string, the arguments are interpreted as [node, message, data, fix].
+    if (typeof args[1] === "string") {
+        return {
+            node: args[0],
+            message: args[1],
+            data: args[2],
+            fix: args[3]
+        };
+    }
+
+    // Otherwise, the arguments are interpreted as [node, loc, message, data, fix].
+    return {
+        node: args[0],
+        loc: args[1],
+        message: args[2],
+        data: args[3],
+        fix: args[4]
+    };
+}
+
+/**
+ * Asserts that either a loc or a node was provided, and the node is valid if it was provided.
+ * @param {MessageDescriptor} descriptor A descriptor to validate
+ * @returns {void}
+ * @throws AssertionError if neither a node nor a loc was provided, or if the node is not an object
+ */
+function assertValidNodeInfo(descriptor) {
+    if (descriptor.node) {
+        assert(typeof descriptor.node === "object", "Node must be an object");
+    } else {
+        assert(descriptor.loc, "Node must be provided when reporting error if location is not provided");
+    }
+}
+
+/**
+ * Normalizes a MessageDescriptor to always have a `loc` with `start` and `end` properties
+ * @param {MessageDescriptor} descriptor A descriptor for the report from a rule.
+ * @returns {{start: Location, end: (Location|null)}} An updated location that infers the `start` and `end` properties
+ * from the `node` of the original descriptor, or infers the `start` from the `loc` of the original descriptor.
+ */
+function normalizeReportLoc(descriptor) {
+    if (descriptor.loc) {
+        if (descriptor.loc.start) {
+            return descriptor.loc;
+        }
+        return { start: descriptor.loc, end: null };
+    }
+    return descriptor.node.loc;
+}
+
+/**
+ * Compares items in a fixes array by range.
+ * @param {Fix} a The first message.
+ * @param {Fix} b The second message.
+ * @returns {int} -1 if a comes before b, 1 if a comes after b, 0 if equal.
+ * @private
+ */
+function compareFixesByRange(a, b) {
+    return a.range[0] - b.range[0] || a.range[1] - b.range[1];
+}
+
+/**
+ * Merges the given fixes array into one.
+ * @param {Fix[]} fixes The fixes to merge.
+ * @param {SourceCode} sourceCode The source code object to get the text between fixes.
+ * @returns {{text: string, range: number[]}} The merged fixes
+ */
+function mergeFixes(fixes, sourceCode) {
+    if (fixes.length === 0) {
+        return null;
+    }
+    if (fixes.length === 1) {
+        return fixes[0];
+    }
+
+    fixes.sort(compareFixesByRange);
+
+    const originalText = sourceCode.text;
+    const start = fixes[0].range[0];
+    const end = fixes[fixes.length - 1].range[1];
+    let text = "";
+    let lastPos = Number.MIN_SAFE_INTEGER;
+
+    for (const fix of fixes) {
+        assert(fix.range[0] >= lastPos, "Fix objects must not be overlapped in a report.");
+
+        if (fix.range[0] >= 0) {
+            text += originalText.slice(Math.max(0, start, lastPos), fix.range[0]);
+        }
+        text += fix.text;
+        lastPos = fix.range[1];
+    }
+    text += originalText.slice(Math.max(0, start, lastPos), end);
+
+    return { range: [start, end], text };
+}
+
+/**
+ * Gets one fix object from the given descriptor.
+ * If the descriptor retrieves multiple fixes, this merges those to one.
+ * @param {MessageDescriptor} descriptor The report descriptor.
+ * @param {SourceCode} sourceCode The source code object to get text between fixes.
+ * @returns {({text: string, range: number[]}|null)} The fix for the descriptor
+ */
+function normalizeFixes(descriptor, sourceCode) {
+    if (typeof descriptor.fix !== "function") {
+        return null;
+    }
+
+    // @type {null | Fix | Fix[] | IterableIterator<Fix>}
+    const fix = descriptor.fix(ruleFixer);
+
+    // Merge to one.
+    if (fix && Symbol.iterator in fix) {
+        return mergeFixes(Array.from(fix), sourceCode);
+    }
+    return fix;
+}
+
+/**
+ * Creates information about the report from a descriptor
+ * @param {Object} options Information about the problem
+ * @param {string} options.ruleId Rule ID
+ * @param {(0|1|2)} options.severity Rule severity
+ * @param {(ASTNode|null)} options.node Node
+ * @param {string} options.message Error message
+ * @param {string} [options.messageId] The error message ID.
+ * @param {{start: SourceLocation, end: (SourceLocation|null)}} options.loc Start and end location
+ * @param {{text: string, range: (number[]|null)}} options.fix The fix object
+ * @returns {function(...args): ReportInfo} Function that returns information about the report
+ */
+function createProblem(options) {
+    const problem = {
+        ruleId: options.ruleId,
+        severity: options.severity,
+        message: options.message,
+        line: options.loc.start.line,
+        column: options.loc.start.column + 1,
+        nodeType: options.node && options.node.type || null
+    };
+
+    /*
+     * If this isn’t in the conditional, some of the tests fail
+     * because `messageId` is present in the problem object
+     */
+    if (options.messageId) {
+        problem.messageId = options.messageId;
+    }
+
+    if (options.loc.end) {
+        problem.endLine = options.loc.end.line;
+        problem.endColumn = options.loc.end.column + 1;
+    }
+
+    if (options.fix) {
+        problem.fix = options.fix;
+    }
+
+    return problem;
+}
+
+/**
+ * Returns a function that converts the arguments of a `context.report` call from a rule into a reported
+ * problem for the Node.js API.
+ * @param {{ruleId: string, severity: number, sourceCode: SourceCode, messageIds: Object}} metadata Metadata for the reported problem
+ * @param {SourceCode} sourceCode The `SourceCode` instance for the text being linted
+ * @returns {function(...args): ReportInfo} Function that returns information about the report
+ */
+
+module.exports = function createReportTranslator(metadata) {
+
+    /*
+     * `createReportTranslator` gets called once per enabled rule per file. It needs to be very performant.
+     * The report translator itself (i.e. the function that `createReportTranslator` returns) gets
+     * called every time a rule reports a problem, which happens much less frequently (usually, the vast
+     * majority of rules don't report any problems for a given file).
+     */
+    return (...args) => {
+        const descriptor = normalizeMultiArgReportCall(...args);
+
+        assertValidNodeInfo(descriptor);
+
+        let computedMessage;
+
+        if (descriptor.messageId) {
+            if (!metadata.messageIds) {
+                throw new TypeError("context.report() called with a messageId, but no messages were present in the rule metadata.");
+            }
+            const id = descriptor.messageId;
+            const messages = metadata.messageIds;
+
+            if (descriptor.message) {
+                throw new TypeError("context.report() called with a message and a messageId. Please only pass one.");
+            }
+            if (!messages || !Object.prototype.hasOwnProperty.call(messages, id)) {
+                throw new TypeError(`context.report() called with a messageId of '${id}' which is not present in the 'messages' config: ${JSON.stringify(messages, null, 2)}`);
+            }
+            computedMessage = messages[id];
+        } else if (descriptor.message) {
+            computedMessage = descriptor.message;
+        } else {
+            throw new TypeError("Missing `message` property in report() call; add a message that describes the linting problem.");
+        }
+
+
+        return createProblem({
+            ruleId: metadata.ruleId,
+            severity: metadata.severity,
+            node: descriptor.node,
+            message: interpolate(computedMessage, descriptor.data),
+            messageId: descriptor.messageId,
+            loc: normalizeReportLoc(descriptor),
+            fix: normalizeFixes(descriptor, metadata.sourceCode)
+        });
+    };
+};

node_modules/eslint/lib/util/rule-fixer.js

@@ -0,0 +1,140 @@
+/**
+ * @fileoverview An object that creates fix commands for rules.
+ * @author Nicholas C. Zakas
+ */
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+// none!
+
+//------------------------------------------------------------------------------
+// Helpers
+//------------------------------------------------------------------------------
+
+/**
+ * Creates a fix command that inserts text at the specified index in the source text.
+ * @param {int} index The 0-based index at which to insert the new text.
+ * @param {string} text The text to insert.
+ * @returns {Object} The fix command.
+ * @private
+ */
+function insertTextAt(index, text) {
+    return {
+        range: [index, index],
+        text
+    };
+}
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+/**
+ * Creates code fixing commands for rules.
+ */
+
+const ruleFixer = Object.freeze({
+
+    /**
+     * Creates a fix command that inserts text after the given node or token.
+     * The fix is not applied until applyFixes() is called.
+     * @param {ASTNode|Token} nodeOrToken The node or token to insert after.
+     * @param {string} text The text to insert.
+     * @returns {Object} The fix command.
+     */
+    insertTextAfter(nodeOrToken, text) {
+        return this.insertTextAfterRange(nodeOrToken.range, text);
+    },
+
+    /**
+     * Creates a fix command that inserts text after the specified range in the source text.
+     * The fix is not applied until applyFixes() is called.
+     * @param {int[]} range The range to replace, first item is start of range, second
+     *      is end of range.
+     * @param {string} text The text to insert.
+     * @returns {Object} The fix command.
+     */
+    insertTextAfterRange(range, text) {
+        return insertTextAt(range[1], text);
+    },
+
+    /**
+     * Creates a fix command that inserts text before the given node or token.
+     * The fix is not applied until applyFixes() is called.
+     * @param {ASTNode|Token} nodeOrToken The node or token to insert before.
+     * @param {string} text The text to insert.
+     * @returns {Object} The fix command.
+     */
+    insertTextBefore(nodeOrToken, text) {
+        return this.insertTextBeforeRange(nodeOrToken.range, text);
+    },
+
+    /**
+     * Creates a fix command that inserts text before the specified range in the source text.
+     * The fix is not applied until applyFixes() is called.
+     * @param {int[]} range The range to replace, first item is start of range, second
+     *      is end of range.
+     * @param {string} text The text to insert.
+     * @returns {Object} The fix command.
+     */
+    insertTextBeforeRange(range, text) {
+        return insertTextAt(range[0], text);
+    },
+
+    /**
+     * Creates a fix command that replaces text at the node or token.
+     * The fix is not applied until applyFixes() is called.
+     * @param {ASTNode|Token} nodeOrToken The node or token to remove.
+     * @param {string} text The text to insert.
+     * @returns {Object} The fix command.
+     */
+    replaceText(nodeOrToken, text) {
+        return this.replaceTextRange(nodeOrToken.range, text);
+    },
+
+    /**
+     * Creates a fix command that replaces text at the specified range in the source text.
+     * The fix is not applied until applyFixes() is called.
+     * @param {int[]} range The range to replace, first item is start of range, second
+     *      is end of range.
+     * @param {string} text The text to insert.
+     * @returns {Object} The fix command.
+     */
+    replaceTextRange(range, text) {
+        return {
+            range,
+            text
+        };
+    },
+
+    /**
+     * Creates a fix command that removes the node or token from the source.
+     * The fix is not applied until applyFixes() is called.
+     * @param {ASTNode|Token} nodeOrToken The node or token to remove.
+     * @returns {Object} The fix command.
+     */
+    remove(nodeOrToken) {
+        return this.removeRange(nodeOrToken.range);
+    },
+
+    /**
+     * Creates a fix command that removes the specified range of text from the source.
+     * The fix is not applied until applyFixes() is called.
+     * @param {int[]} range The range to remove, first item is start of range, second
+     *      is end of range.
+     * @returns {Object} The fix command.
+     */
+    removeRange(range) {
+        return {
+            range,
+            text: ""
+        };
+    }
+
+});
+
+
+module.exports = ruleFixer;

node_modules/eslint/lib/util/safe-emitter.js

@@ -0,0 +1,52 @@
+/**
+ * @fileoverview A variant of EventEmitter which does not give listeners information about each other
+ * @author Teddy Katz
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Typedefs
+//------------------------------------------------------------------------------
+
+/**
+ * An event emitter
+ * @typedef {Object} SafeEmitter
+ * @property {function(eventName: string, listenerFunc: Function): void} on Adds a listener for a given event name
+ * @property {function(eventName: string, arg1?: any, arg2?: any, arg3?: any)} emit Emits an event with a given name.
+ * This calls all the listeners that were listening for that name, with `arg1`, `arg2`, and `arg3` as arguments.
+ * @property {function(): string[]} eventNames Gets the list of event names that have registered listeners.
+ */
+
+/**
+ * Creates an object which can listen for and emit events.
+ * This is similar to the EventEmitter API in Node's standard library, but it has a few differences.
+ * The goal is to allow multiple modules to attach arbitrary listeners to the same emitter, without
+ * letting the modules know about each other at all.
+ * 1. It has no special keys like `error` and `newListener`, which would allow modules to detect when
+ * another module throws an error or registers a listener.
+ * 2. It calls listener functions without any `this` value. (`EventEmitter` calls listeners with a
+ * `this` value of the emitter instance, which would give listeners access to other listeners.)
+ * @returns {SafeEmitter} An emitter
+ */
+module.exports = () => {
+    const listeners = Object.create(null);
+
+    return Object.freeze({
+        on(eventName, listener) {
+            if (eventName in listeners) {
+                listeners[eventName].push(listener);
+            } else {
+                listeners[eventName] = [listener];
+            }
+        },
+        emit(eventName, ...args) {
+            if (eventName in listeners) {
+                listeners[eventName].forEach(listener => listener(...args));
+            }
+        },
+        eventNames() {
+            return Object.keys(listeners);
+        }
+    });
+};

node_modules/eslint/lib/util/source-code-fixer.js

@@ -0,0 +1,152 @@
+/**
+ * @fileoverview An object that caches and applies source code fixes.
+ * @author Nicholas C. Zakas
+ */
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const debug = require("debug")("eslint:source-code-fixer");
+
+//------------------------------------------------------------------------------
+// Helpers
+//------------------------------------------------------------------------------
+
+const BOM = "\uFEFF";
+
+/**
+ * Compares items in a messages array by range.
+ * @param {Message} a The first message.
+ * @param {Message} b The second message.
+ * @returns {int} -1 if a comes before b, 1 if a comes after b, 0 if equal.
+ * @private
+ */
+function compareMessagesByFixRange(a, b) {
+    return a.fix.range[0] - b.fix.range[0] || a.fix.range[1] - b.fix.range[1];
+}
+
+/**
+ * Compares items in a messages array by line and column.
+ * @param {Message} a The first message.
+ * @param {Message} b The second message.
+ * @returns {int} -1 if a comes before b, 1 if a comes after b, 0 if equal.
+ * @private
+ */
+function compareMessagesByLocation(a, b) {
+    return a.line - b.line || a.column - b.column;
+}
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+/**
+ * Utility for apply fixes to source code.
+ * @constructor
+ */
+function SourceCodeFixer() {
+    Object.freeze(this);
+}
+
+/**
+ * Applies the fixes specified by the messages to the given text. Tries to be
+ * smart about the fixes and won't apply fixes over the same area in the text.
+ * @param {string} sourceText The text to apply the changes to.
+ * @param {Message[]} messages The array of messages reported by ESLint.
+ * @param {boolean|Function} [shouldFix=true] Determines whether each message should be fixed
+ * @returns {Object} An object containing the fixed text and any unfixed messages.
+ */
+SourceCodeFixer.applyFixes = function(sourceText, messages, shouldFix) {
+    debug("Applying fixes");
+
+    if (shouldFix === false) {
+        debug("shouldFix parameter was false, not attempting fixes");
+        return {
+            fixed: false,
+            messages,
+            output: sourceText
+        };
+    }
+
+    // clone the array
+    const remainingMessages = [],
+        fixes = [],
+        bom = sourceText.startsWith(BOM) ? BOM : "",
+        text = bom ? sourceText.slice(1) : sourceText;
+    let lastPos = Number.NEGATIVE_INFINITY,
+        output = bom;
+
+    /**
+     * Try to use the 'fix' from a problem.
+     * @param   {Message} problem The message object to apply fixes from
+     * @returns {boolean}         Whether fix was successfully applied
+     */
+    function attemptFix(problem) {
+        const fix = problem.fix;
+        const start = fix.range[0];
+        const end = fix.range[1];
+
+        // Remain it as a problem if it's overlapped or it's a negative range
+        if (lastPos >= start || start > end) {
+            remainingMessages.push(problem);
+            return false;
+        }
+
+        // Remove BOM.
+        if ((start < 0 && end >= 0) || (start === 0 && fix.text.startsWith(BOM))) {
+            output = "";
+        }
+
+        // Make output to this fix.
+        output += text.slice(Math.max(0, lastPos), Math.max(0, start));
+        output += fix.text;
+        lastPos = end;
+        return true;
+    }
+
+    messages.forEach(problem => {
+        if (Object.prototype.hasOwnProperty.call(problem, "fix")) {
+            fixes.push(problem);
+        } else {
+            remainingMessages.push(problem);
+        }
+    });
+
+    if (fixes.length) {
+        debug("Found fixes to apply");
+        let fixesWereApplied = false;
+
+        for (const problem of fixes.sort(compareMessagesByFixRange)) {
+            if (typeof shouldFix !== "function" || shouldFix(problem)) {
+                attemptFix(problem);
+
+                /*
+                 * The only time attemptFix will fail is if a previous fix was
+                 * applied which conflicts with it.  So we can mark this as true.
+                 */
+                fixesWereApplied = true;
+            } else {
+                remainingMessages.push(problem);
+            }
+        }
+        output += text.slice(Math.max(0, lastPos));
+
+        return {
+            fixed: fixesWereApplied,
+            messages: remainingMessages.sort(compareMessagesByLocation),
+            output
+        };
+    }
+
+    debug("No fixes to apply");
+    return {
+        fixed: false,
+        messages,
+        output: bom + text
+    };
+
+};
+
+module.exports = SourceCodeFixer;

node_modules/eslint/lib/util/source-code-utils.js

@@ -0,0 +1,105 @@
+/**
+ * @fileoverview Tools for obtaining SourceCode objects.
+ * @author Ian VanSchooten
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const CLIEngine = require("../cli-engine"),
+    globUtils = require("./glob-utils"),
+    baseDefaultOptions = require("../../conf/default-cli-options");
+
+const debug = require("debug")("eslint:source-code-utils");
+
+//------------------------------------------------------------------------------
+// Helpers
+//------------------------------------------------------------------------------
+
+/**
+ * Get the SourceCode object for a single file
+ * @param   {string}     filename The fully resolved filename to get SourceCode from.
+ * @param   {Object}     options  A CLIEngine options object.
+ * @returns {Array}               Array of the SourceCode object representing the file
+ *                                and fatal error message.
+ */
+function getSourceCodeOfFile(filename, options) {
+    debug("getting sourceCode of", filename);
+    const opts = Object.assign({}, options, { rules: {} });
+    const cli = new CLIEngine(opts);
+    const results = cli.executeOnFiles([filename]);
+
+    if (results && results.results[0] && results.results[0].messages[0] && results.results[0].messages[0].fatal) {
+        const msg = results.results[0].messages[0];
+
+        throw new Error(`(${filename}:${msg.line}:${msg.column}) ${msg.message}`);
+    }
+    const sourceCode = cli.linter.getSourceCode();
+
+    return sourceCode;
+}
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+
+/**
+ * This callback is used to measure execution status in a progress bar
+ * @callback progressCallback
+ * @param {number} The total number of times the callback will be called.
+ */
+
+/**
+ * Gets the SourceCode of a single file, or set of files.
+ * @param {string[]|string} patterns A filename, directory name, or glob, or an array of them
+ * @param {Object} [providedOptions] A CLIEngine options object. If not provided, the default cli options will be used.
+ * @param {progressCallback} [providedCallback] Callback for reporting execution status
+ * @returns {Object} The SourceCode of all processed files.
+ */
+function getSourceCodeOfFiles(patterns, providedOptions, providedCallback) {
+    const sourceCodes = {};
+    const globPatternsList = typeof patterns === "string" ? [patterns] : patterns;
+    let options, callback;
+
+    const defaultOptions = Object.assign({}, baseDefaultOptions, { cwd: process.cwd() });
+
+    if (typeof providedOptions === "undefined") {
+        options = defaultOptions;
+        callback = null;
+    } else if (typeof providedOptions === "function") {
+        callback = providedOptions;
+        options = defaultOptions;
+    } else if (typeof providedOptions === "object") {
+        options = Object.assign({}, defaultOptions, providedOptions);
+        callback = providedCallback;
+    }
+    debug("constructed options:", options);
+
+    const filenames = globUtils.listFilesToProcess(globPatternsList, options)
+        .filter(fileInfo => !fileInfo.ignored)
+        .reduce((files, fileInfo) => files.concat(fileInfo.filename), []);
+
+    if (filenames.length === 0) {
+        debug(`Did not find any files matching pattern(s): ${globPatternsList}`);
+    }
+    filenames.forEach(filename => {
+        const sourceCode = getSourceCodeOfFile(filename, options);
+
+        if (sourceCode) {
+            debug("got sourceCode of", filename);
+            sourceCodes[filename] = sourceCode;
+        }
+        if (callback) {
+            callback(filenames.length); // eslint-disable-line callback-return
+        }
+    });
+    return sourceCodes;
+}
+
+module.exports = {
+    getSourceCodeOfFiles
+};

node_modules/eslint/lib/util/source-code.js

@@ -0,0 +1,507 @@
+/**
+ * @fileoverview Abstraction of JavaScript source code.
+ * @author Nicholas C. Zakas
+ */
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const TokenStore = require("../token-store"),
+    Traverser = require("./traverser"),
+    astUtils = require("../util/ast-utils"),
+    lodash = require("lodash");
+
+//------------------------------------------------------------------------------
+// Private
+//------------------------------------------------------------------------------
+
+/**
+ * Validates that the given AST has the required information.
+ * @param {ASTNode} ast The Program node of the AST to check.
+ * @throws {Error} If the AST doesn't contain the correct information.
+ * @returns {void}
+ * @private
+ */
+function validate(ast) {
+    if (!ast.tokens) {
+        throw new Error("AST is missing the tokens array.");
+    }
+
+    if (!ast.comments) {
+        throw new Error("AST is missing the comments array.");
+    }
+
+    if (!ast.loc) {
+        throw new Error("AST is missing location information.");
+    }
+
+    if (!ast.range) {
+        throw new Error("AST is missing range information");
+    }
+}
+
+/**
+ * Check to see if its a ES6 export declaration.
+ * @param {ASTNode} astNode An AST node.
+ * @returns {boolean} whether the given node represents an export declaration.
+ * @private
+ */
+function looksLikeExport(astNode) {
+    return astNode.type === "ExportDefaultDeclaration" || astNode.type === "ExportNamedDeclaration" ||
+        astNode.type === "ExportAllDeclaration" || astNode.type === "ExportSpecifier";
+}
+
+/**
+ * Merges two sorted lists into a larger sorted list in O(n) time.
+ * @param {Token[]} tokens The list of tokens.
+ * @param {Token[]} comments The list of comments.
+ * @returns {Token[]} A sorted list of tokens and comments.
+ * @private
+ */
+function sortedMerge(tokens, comments) {
+    const result = [];
+    let tokenIndex = 0;
+    let commentIndex = 0;
+
+    while (tokenIndex < tokens.length || commentIndex < comments.length) {
+        if (commentIndex >= comments.length || tokenIndex < tokens.length && tokens[tokenIndex].range[0] < comments[commentIndex].range[0]) {
+            result.push(tokens[tokenIndex++]);
+        } else {
+            result.push(comments[commentIndex++]);
+        }
+    }
+
+    return result;
+}
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+class SourceCode extends TokenStore {
+
+    /**
+     * Represents parsed source code.
+     * @param {string|Object} textOrConfig - The source code text or config object.
+     * @param {string} textOrConfig.text - The source code text.
+     * @param {ASTNode} textOrConfig.ast - The Program node of the AST representing the code. This AST should be created from the text that BOM was stripped.
+     * @param {Object|null} textOrConfig.parserServices - The parser services.
+     * @param {ScopeManager|null} textOrConfig.scopeManager - The scope of this source code.
+     * @param {Object|null} textOrConfig.visitorKeys - The visitor keys to traverse AST.
+     * @param {ASTNode} [astIfNoConfig] - The Program node of the AST representing the code. This AST should be created from the text that BOM was stripped.
+     * @constructor
+     */
+    constructor(textOrConfig, astIfNoConfig) {
+        let text, ast, parserServices, scopeManager, visitorKeys;
+
+        // Process overloading.
+        if (typeof textOrConfig === "string") {
+            text = textOrConfig;
+            ast = astIfNoConfig;
+        } else if (typeof textOrConfig === "object" && textOrConfig !== null) {
+            text = textOrConfig.text;
+            ast = textOrConfig.ast;
+            parserServices = textOrConfig.parserServices;
+            scopeManager = textOrConfig.scopeManager;
+            visitorKeys = textOrConfig.visitorKeys;
+        }
+
+        validate(ast);
+        super(ast.tokens, ast.comments);
+
+        /**
+         * The flag to indicate that the source code has Unicode BOM.
+         * @type boolean
+         */
+        this.hasBOM = (text.charCodeAt(0) === 0xFEFF);
+
+        /**
+         * The original text source code.
+         * BOM was stripped from this text.
+         * @type string
+         */
+        this.text = (this.hasBOM ? text.slice(1) : text);
+
+        /**
+         * The parsed AST for the source code.
+         * @type ASTNode
+         */
+        this.ast = ast;
+
+        /**
+         * The parser services of this source code.
+         * @type {Object}
+         */
+        this.parserServices = parserServices || {};
+
+        /**
+         * The scope of this source code.
+         * @type {ScopeManager|null}
+         */
+        this.scopeManager = scopeManager || null;
+
+        /**
+         * The visitor keys to traverse AST.
+         * @type {Object}
+         */
+        this.visitorKeys = visitorKeys || Traverser.DEFAULT_VISITOR_KEYS;
+
+        // Check the source text for the presence of a shebang since it is parsed as a standard line comment.
+        const shebangMatched = this.text.match(astUtils.SHEBANG_MATCHER);
+        const hasShebang = shebangMatched && ast.comments.length && ast.comments[0].value === shebangMatched[1];
+
+        if (hasShebang) {
+            ast.comments[0].type = "Shebang";
+        }
+
+        this.tokensAndComments = sortedMerge(ast.tokens, ast.comments);
+
+        /**
+         * The source code split into lines according to ECMA-262 specification.
+         * This is done to avoid each rule needing to do so separately.
+         * @type string[]
+         */
+        this.lines = [];
+        this.lineStartIndices = [0];
+
+        const lineEndingPattern = astUtils.createGlobalLinebreakMatcher();
+        let match;
+
+        /*
+         * Previously, this was implemented using a regex that
+         * matched a sequence of non-linebreak characters followed by a
+         * linebreak, then adding the lengths of the matches. However,
+         * this caused a catastrophic backtracking issue when the end
+         * of a file contained a large number of non-newline characters.
+         * To avoid this, the current implementation just matches newlines
+         * and uses match.index to get the correct line start indices.
+         */
+        while ((match = lineEndingPattern.exec(this.text))) {
+            this.lines.push(this.text.slice(this.lineStartIndices[this.lineStartIndices.length - 1], match.index));
+            this.lineStartIndices.push(match.index + match[0].length);
+        }
+        this.lines.push(this.text.slice(this.lineStartIndices[this.lineStartIndices.length - 1]));
+
+        // Cache for comments found using getComments().
+        this._commentCache = new WeakMap();
+
+        // don't allow modification of this object
+        Object.freeze(this);
+        Object.freeze(this.lines);
+    }
+
+    /**
+     * Split the source code into multiple lines based on the line delimiters.
+     * @param {string} text Source code as a string.
+     * @returns {string[]} Array of source code lines.
+     * @public
+     */
+    static splitLines(text) {
+        return text.split(astUtils.createGlobalLinebreakMatcher());
+    }
+
+    /**
+     * Gets the source code for the given node.
+     * @param {ASTNode=} node The AST node to get the text for.
+     * @param {int=} beforeCount The number of characters before the node to retrieve.
+     * @param {int=} afterCount The number of characters after the node to retrieve.
+     * @returns {string} The text representing the AST node.
+     * @public
+     */
+    getText(node, beforeCount, afterCount) {
+        if (node) {
+            return this.text.slice(Math.max(node.range[0] - (beforeCount || 0), 0),
+                node.range[1] + (afterCount || 0));
+        }
+        return this.text;
+    }
+
+    /**
+     * Gets the entire source text split into an array of lines.
+     * @returns {Array} The source text as an array of lines.
+     * @public
+     */
+    getLines() {
+        return this.lines;
+    }
+
+    /**
+     * Retrieves an array containing all comments in the source code.
+     * @returns {ASTNode[]} An array of comment nodes.
+     * @public
+     */
+    getAllComments() {
+        return this.ast.comments;
+    }
+
+    /**
+     * Gets all comments for the given node.
+     * @param {ASTNode} node The AST node to get the comments for.
+     * @returns {Object} An object containing a leading and trailing array
+     *      of comments indexed by their position.
+     * @public
+     */
+    getComments(node) {
+        if (this._commentCache.has(node)) {
+            return this._commentCache.get(node);
+        }
+
+        const comments = {
+            leading: [],
+            trailing: []
+        };
+
+        /*
+         * Return all comments as leading comments of the Program node when
+         * there is no executable code.
+         */
+        if (node.type === "Program") {
+            if (node.body.length === 0) {
+                comments.leading = node.comments;
+            }
+        } else {
+
+            /*
+             * Return comments as trailing comments of nodes that only contain
+             * comments (to mimic the comment attachment behavior present in Espree).
+             */
+            if ((node.type === "BlockStatement" || node.type === "ClassBody") && node.body.length === 0 ||
+                node.type === "ObjectExpression" && node.properties.length === 0 ||
+                node.type === "ArrayExpression" && node.elements.length === 0 ||
+                node.type === "SwitchStatement" && node.cases.length === 0
+            ) {
+                comments.trailing = this.getTokens(node, {
+                    includeComments: true,
+                    filter: astUtils.isCommentToken
+                });
+            }
+
+            /*
+             * Iterate over tokens before and after node and collect comment tokens.
+             * Do not include comments that exist outside of the parent node
+             * to avoid duplication.
+             */
+            let currentToken = this.getTokenBefore(node, { includeComments: true });
+
+            while (currentToken && astUtils.isCommentToken(currentToken)) {
+                if (node.parent && (currentToken.start < node.parent.start)) {
+                    break;
+                }
+                comments.leading.push(currentToken);
+                currentToken = this.getTokenBefore(currentToken, { includeComments: true });
+            }
+
+            comments.leading.reverse();
+
+            currentToken = this.getTokenAfter(node, { includeComments: true });
+
+            while (currentToken && astUtils.isCommentToken(currentToken)) {
+                if (node.parent && (currentToken.end > node.parent.end)) {
+                    break;
+                }
+                comments.trailing.push(currentToken);
+                currentToken = this.getTokenAfter(currentToken, { includeComments: true });
+            }
+        }
+
+        this._commentCache.set(node, comments);
+        return comments;
+    }
+
+    /**
+     * Retrieves the JSDoc comment for a given node.
+     * @param {ASTNode} node The AST node to get the comment for.
+     * @returns {Token|null} The Block comment token containing the JSDoc comment
+     *      for the given node or null if not found.
+     * @public
+     * @deprecated
+     */
+    getJSDocComment(node) {
+
+        /**
+         * Checks for the presence of a JSDoc comment for the given node and returns it.
+         * @param {ASTNode} astNode The AST node to get the comment for.
+         * @returns {Token|null} The Block comment token containing the JSDoc comment
+         *      for the given node or null if not found.
+         * @private
+         */
+        const findJSDocComment = astNode => {
+            const tokenBefore = this.getTokenBefore(astNode, { includeComments: true });
+
+            if (
+                tokenBefore &&
+                astUtils.isCommentToken(tokenBefore) &&
+                tokenBefore.type === "Block" &&
+                tokenBefore.value.charAt(0) === "*" &&
+                astNode.loc.start.line - tokenBefore.loc.end.line <= 1
+            ) {
+                return tokenBefore;
+            }
+
+            return null;
+        };
+        let parent = node.parent;
+
+        switch (node.type) {
+            case "ClassDeclaration":
+            case "FunctionDeclaration":
+                return findJSDocComment(looksLikeExport(parent) ? parent : node);
+
+            case "ClassExpression":
+                return findJSDocComment(parent.parent);
+
+            case "ArrowFunctionExpression":
+            case "FunctionExpression":
+                if (parent.type !== "CallExpression" && parent.type !== "NewExpression") {
+                    while (
+                        !this.getCommentsBefore(parent).length &&
+                        !/Function/u.test(parent.type) &&
+                        parent.type !== "MethodDefinition" &&
+                        parent.type !== "Property"
+                    ) {
+                        parent = parent.parent;
+
+                        if (!parent) {
+                            break;
+                        }
+                    }
+
+                    if (parent && parent.type !== "FunctionDeclaration" && parent.type !== "Program") {
+                        return findJSDocComment(parent);
+                    }
+                }
+
+                return findJSDocComment(node);
+
+            // falls through
+            default:
+                return null;
+        }
+    }
+
+    /**
+     * Gets the deepest node containing a range index.
+     * @param {int} index Range index of the desired node.
+     * @returns {ASTNode} The node if found or null if not found.
+     * @public
+     */
+    getNodeByRangeIndex(index) {
+        let result = null;
+
+        Traverser.traverse(this.ast, {
+            visitorKeys: this.visitorKeys,
+            enter(node) {
+                if (node.range[0] <= index && index < node.range[1]) {
+                    result = node;
+                } else {
+                    this.skip();
+                }
+            },
+            leave(node) {
+                if (node === result) {
+                    this.break();
+                }
+            }
+        });
+
+        return result;
+    }
+
+    /**
+     * Determines if two tokens have at least one whitespace character
+     * between them. This completely disregards comments in making the
+     * determination, so comments count as zero-length substrings.
+     * @param {Token} first The token to check after.
+     * @param {Token} second The token to check before.
+     * @returns {boolean} True if there is only space between tokens, false
+     *  if there is anything other than whitespace between tokens.
+     * @public
+     */
+    isSpaceBetweenTokens(first, second) {
+        const text = this.text.slice(first.range[1], second.range[0]);
+
+        return /\s/u.test(text.replace(/\/\*.*?\*\//gu, ""));
+    }
+
+    /**
+     * Converts a source text index into a (line, column) pair.
+     * @param {number} index The index of a character in a file
+     * @returns {Object} A {line, column} location object with a 0-indexed column
+     * @public
+     */
+    getLocFromIndex(index) {
+        if (typeof index !== "number") {
+            throw new TypeError("Expected `index` to be a number.");
+        }
+
+        if (index < 0 || index > this.text.length) {
+            throw new RangeError(`Index out of range (requested index ${index}, but source text has length ${this.text.length}).`);
+        }
+
+        /*
+         * For an argument of this.text.length, return the location one "spot" past the last character
+         * of the file. If the last character is a linebreak, the location will be column 0 of the next
+         * line; otherwise, the location will be in the next column on the same line.
+         *
+         * See getIndexFromLoc for the motivation for this special case.
+         */
+        if (index === this.text.length) {
+            return { line: this.lines.length, column: this.lines[this.lines.length - 1].length };
+        }
+
+        /*
+         * To figure out which line rangeIndex is on, determine the last index at which rangeIndex could
+         * be inserted into lineIndices to keep the list sorted.
+         */
+        const lineNumber = lodash.sortedLastIndex(this.lineStartIndices, index);
+
+        return { line: lineNumber, column: index - this.lineStartIndices[lineNumber - 1] };
+    }
+
+    /**
+     * Converts a (line, column) pair into a range index.
+     * @param {Object} loc A line/column location
+     * @param {number} loc.line The line number of the location (1-indexed)
+     * @param {number} loc.column The column number of the location (0-indexed)
+     * @returns {number} The range index of the location in the file.
+     * @public
+     */
+    getIndexFromLoc(loc) {
+        if (typeof loc !== "object" || typeof loc.line !== "number" || typeof loc.column !== "number") {
+            throw new TypeError("Expected `loc` to be an object with numeric `line` and `column` properties.");
+        }
+
+        if (loc.line <= 0) {
+            throw new RangeError(`Line number out of range (line ${loc.line} requested). Line numbers should be 1-based.`);
+        }
+
+        if (loc.line > this.lineStartIndices.length) {
+            throw new RangeError(`Line number out of range (line ${loc.line} requested, but only ${this.lineStartIndices.length} lines present).`);
+        }
+
+        const lineStartIndex = this.lineStartIndices[loc.line - 1];
+        const lineEndIndex = loc.line === this.lineStartIndices.length ? this.text.length : this.lineStartIndices[loc.line];
+        const positionIndex = lineStartIndex + loc.column;
+
+        /*
+         * By design, getIndexFromLoc({ line: lineNum, column: 0 }) should return the start index of
+         * the given line, provided that the line number is valid element of this.lines. Since the
+         * last element of this.lines is an empty string for files with trailing newlines, add a
+         * special case where getting the index for the first location after the end of the file
+         * will return the length of the file, rather than throwing an error. This allows rules to
+         * use getIndexFromLoc consistently without worrying about edge cases at the end of a file.
+         */
+        if (
+            loc.line === this.lineStartIndices.length && positionIndex > lineEndIndex ||
+            loc.line < this.lineStartIndices.length && positionIndex >= lineEndIndex
+        ) {
+            throw new RangeError(`Column number out of range (column ${loc.column} requested, but the length of line ${loc.line} is ${lineEndIndex - lineStartIndex}).`);
+        }
+
+        return positionIndex;
+    }
+}
+
+module.exports = SourceCode;

node_modules/eslint/lib/util/timing.js

@@ -0,0 +1,139 @@
+/**
+ * @fileoverview Tracks performance of individual rules.
+ * @author Brandon Mills
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Helpers
+//------------------------------------------------------------------------------
+
+/* istanbul ignore next */
+/**
+ * Align the string to left
+ * @param {string} str string to evaluate
+ * @param {int} len length of the string
+ * @param {string} ch delimiter character
+ * @returns {string} modified string
+ * @private
+ */
+function alignLeft(str, len, ch) {
+    return str + new Array(len - str.length + 1).join(ch || " ");
+}
+
+/* istanbul ignore next */
+/**
+ * Align the string to right
+ * @param {string} str string to evaluate
+ * @param {int} len length of the string
+ * @param {string} ch delimiter character
+ * @returns {string} modified string
+ * @private
+ */
+function alignRight(str, len, ch) {
+    return new Array(len - str.length + 1).join(ch || " ") + str;
+}
+
+//------------------------------------------------------------------------------
+// Module definition
+//------------------------------------------------------------------------------
+
+const enabled = !!process.env.TIMING;
+
+const HEADERS = ["Rule", "Time (ms)", "Relative"];
+const ALIGN = [alignLeft, alignRight, alignRight];
+
+/* istanbul ignore next */
+/**
+ * display the data
+ * @param {Object} data Data object to be displayed
+ * @returns {string} modified string
+ * @private
+ */
+function display(data) {
+    let total = 0;
+    const rows = Object.keys(data)
+        .map(key => {
+            const time = data[key];
+
+            total += time;
+            return [key, time];
+        })
+        .sort((a, b) => b[1] - a[1])
+        .slice(0, 10);
+
+    rows.forEach(row => {
+        row.push(`${(row[1] * 100 / total).toFixed(1)}%`);
+        row[1] = row[1].toFixed(3);
+    });
+
+    rows.unshift(HEADERS);
+
+    const widths = [];
+
+    rows.forEach(row => {
+        const len = row.length;
+
+        for (let i = 0; i < len; i++) {
+            const n = row[i].length;
+
+            if (!widths[i] || n > widths[i]) {
+                widths[i] = n;
+            }
+        }
+    });
+
+    const table = rows.map(row => (
+        row
+            .map((cell, index) => ALIGN[index](cell, widths[index]))
+            .join(" | ")
+    ));
+
+    table.splice(1, 0, widths.map((width, index) => {
+        const extraAlignment = index !== 0 && index !== widths.length - 1 ? 2 : 1;
+
+        return ALIGN[index](":", width + extraAlignment, "-");
+    }).join("|"));
+
+    console.log(table.join("\n")); // eslint-disable-line no-console
+}
+
+/* istanbul ignore next */
+module.exports = (function() {
+
+    const data = Object.create(null);
+
+    /**
+     * Time the run
+     * @param {*} key key from the data object
+     * @param {Function} fn function to be called
+     * @returns {Function} function to be executed
+     * @private
+     */
+    function time(key, fn) {
+        if (typeof data[key] === "undefined") {
+            data[key] = 0;
+        }
+
+        return function(...args) {
+            let t = process.hrtime();
+
+            fn(...args);
+            t = process.hrtime(t);
+            data[key] += t[0] * 1e3 + t[1] / 1e6;
+        };
+    }
+
+    if (enabled) {
+        process.on("exit", () => {
+            display(data);
+        });
+    }
+
+    return {
+        time,
+        enabled
+    };
+
+}());

node_modules/eslint/lib/util/traverser.js

@@ -0,0 +1,193 @@
+/**
+ * @fileoverview Traverser to traverse AST trees.
+ * @author Nicholas C. Zakas
+ * @author Toru Nagashima
+ */
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const vk = require("eslint-visitor-keys");
+const debug = require("debug")("eslint:traverser");
+
+//------------------------------------------------------------------------------
+// Helpers
+//------------------------------------------------------------------------------
+
+/**
+ * Do nothing.
+ * @returns {void}
+ */
+function noop() {
+
+    // do nothing.
+}
+
+/**
+ * Check whether the given value is an ASTNode or not.
+ * @param {any} x The value to check.
+ * @returns {boolean} `true` if the value is an ASTNode.
+ */
+function isNode(x) {
+    return x !== null && typeof x === "object" && typeof x.type === "string";
+}
+
+/**
+ * Get the visitor keys of a given node.
+ * @param {Object} visitorKeys The map of visitor keys.
+ * @param {ASTNode} node The node to get their visitor keys.
+ * @returns {string[]} The visitor keys of the node.
+ */
+function getVisitorKeys(visitorKeys, node) {
+    let keys = visitorKeys[node.type];
+
+    if (!keys) {
+        keys = vk.getKeys(node);
+        debug("Unknown node type \"%s\": Estimated visitor keys %j", node.type, keys);
+    }
+
+    return keys;
+}
+
+/**
+ * The traverser class to traverse AST trees.
+ */
+class Traverser {
+    constructor() {
+        this._current = null;
+        this._parents = [];
+        this._skipped = false;
+        this._broken = false;
+        this._visitorKeys = null;
+        this._enter = null;
+        this._leave = null;
+    }
+
+    /**
+     * @returns {ASTNode} The current node.
+     */
+    current() {
+        return this._current;
+    }
+
+    /**
+     * @returns {ASTNode[]} The ancestor nodes.
+     */
+    parents() {
+        return this._parents.slice(0);
+    }
+
+    /**
+     * Break the current traversal.
+     * @returns {void}
+     */
+    break() {
+        this._broken = true;
+    }
+
+    /**
+     * Skip child nodes for the current traversal.
+     * @returns {void}
+     */
+    skip() {
+        this._skipped = true;
+    }
+
+    /**
+     * Traverse the given AST tree.
+     * @param {ASTNode} node The root node to traverse.
+     * @param {Object} options The option object.
+     * @param {Object} [options.visitorKeys=DEFAULT_VISITOR_KEYS] The keys of each node types to traverse child nodes. Default is `./default-visitor-keys.json`.
+     * @param {Function} [options.enter=noop] The callback function which is called on entering each node.
+     * @param {Function} [options.leave=noop] The callback function which is called on leaving each node.
+     * @returns {void}
+     */
+    traverse(node, options) {
+        this._current = null;
+        this._parents = [];
+        this._skipped = false;
+        this._broken = false;
+        this._visitorKeys = options.visitorKeys || vk.KEYS;
+        this._enter = options.enter || noop;
+        this._leave = options.leave || noop;
+        this._traverse(node, null);
+    }
+
+    /**
+     * Traverse the given AST tree recursively.
+     * @param {ASTNode} node The current node.
+     * @param {ASTNode|null} parent The parent node.
+     * @returns {void}
+     * @private
+     */
+    _traverse(node, parent) {
+        if (!isNode(node)) {
+            return;
+        }
+
+        this._current = node;
+        this._skipped = false;
+        this._enter(node, parent);
+
+        if (!this._skipped && !this._broken) {
+            const keys = getVisitorKeys(this._visitorKeys, node);
+
+            if (keys.length >= 1) {
+                this._parents.push(node);
+                for (let i = 0; i < keys.length && !this._broken; ++i) {
+                    const child = node[keys[i]];
+
+                    if (Array.isArray(child)) {
+                        for (let j = 0; j < child.length && !this._broken; ++j) {
+                            this._traverse(child[j], node);
+                        }
+                    } else {
+                        this._traverse(child, node);
+                    }
+                }
+                this._parents.pop();
+            }
+        }
+
+        if (!this._broken) {
+            this._leave(node, parent);
+        }
+
+        this._current = parent;
+    }
+
+    /**
+     * Calculates the keys to use for traversal.
+     * @param {ASTNode} node The node to read keys from.
+     * @returns {string[]} An array of keys to visit on the node.
+     * @private
+     */
+    static getKeys(node) {
+        return vk.getKeys(node);
+    }
+
+    /**
+     * Traverse the given AST tree.
+     * @param {ASTNode} node The root node to traverse.
+     * @param {Object} options The option object.
+     * @param {Object} [options.visitorKeys=DEFAULT_VISITOR_KEYS] The keys of each node types to traverse child nodes. Default is `./default-visitor-keys.json`.
+     * @param {Function} [options.enter=noop] The callback function which is called on entering each node.
+     * @param {Function} [options.leave=noop] The callback function which is called on leaving each node.
+     * @returns {void}
+     */
+    static traverse(node, options) {
+        new Traverser().traverse(node, options);
+    }
+
+    /**
+     * The default visitor keys.
+     * @type {Object}
+     */
+    static get DEFAULT_VISITOR_KEYS() {
+        return vk.KEYS;
+    }
+}
+
+module.exports = Traverser;

node_modules/eslint/lib/util/unicode/index.js

@@ -0,0 +1,11 @@
+/**
+ * @author Toru Nagashima <https://github.com/mysticatea>
+ */
+"use strict";
+
+module.exports = {
+    isCombiningCharacter: require("./is-combining-character"),
+    isEmojiModifier: require("./is-emoji-modifier"),
+    isRegionalIndicatorSymbol: require("./is-regional-indicator-symbol"),
+    isSurrogatePair: require("./is-surrogate-pair")
+};

node_modules/eslint/lib/util/unicode/is-emoji-modifier.js

@@ -0,0 +1,13 @@
+/**
+ * @author Toru Nagashima <https://github.com/mysticatea>
+ */
+"use strict";
+
+/**
+ * Check whether a given character is an emoji modifier.
+ * @param {number} code The character code to check.
+ * @returns {boolean} `true` if the character is an emoji modifier.
+ */
+module.exports = function isEmojiModifier(code) {
+    return code >= 0x1F3FB && code <= 0x1F3FF;
+};

node_modules/eslint/lib/util/unicode/is-regional-indicator-symbol.js

@@ -0,0 +1,13 @@
+/**
+ * @author Toru Nagashima <https://github.com/mysticatea>
+ */
+"use strict";
+
+/**
+ * Check whether a given character is a regional indicator symbol.
+ * @param {number} code The character code to check.
+ * @returns {boolean} `true` if the character is a regional indicator symbol.
+ */
+module.exports = function isRegionalIndicatorSymbol(code) {
+    return code >= 0x1F1E6 && code <= 0x1F1FF;
+};

node_modules/eslint/lib/util/unicode/is-surrogate-pair.js

@@ -0,0 +1,14 @@
+/**
+ * @author Toru Nagashima <https://github.com/mysticatea>
+ */
+"use strict";
+
+/**
+ * Check whether given two characters are a surrogate pair.
+ * @param {number} lead The code of the lead character.
+ * @param {number} tail The code of the tail character.
+ * @returns {boolean} `true` if the character pair is a surrogate pair.
+ */
+module.exports = function isSurrogatePair(lead, tail) {
+    return lead >= 0xD800 && lead < 0xDC00 && tail >= 0xDC00 && tail < 0xE000;
+};

node_modules/eslint/lib/util/xml-escape.js

@@ -0,0 +1,34 @@
+/**
+ * @fileoverview XML character escaper
+ * @author George Chung
+ */
+"use strict";
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+/**
+ * Returns the escaped value for a character
+ * @param {string} s string to examine
+ * @returns {string} severity level
+ * @private
+ */
+module.exports = function(s) {
+    return (`${s}`).replace(/[<>&"'\x00-\x1F\x7F\u0080-\uFFFF]/gu, c => { // eslint-disable-line no-control-regex
+        switch (c) {
+            case "<":
+                return "&lt;";
+            case ">":
+                return "&gt;";
+            case "&":
+                return "&amp;";
+            case "\"":
+                return "&quot;";
+            case "'":
+                return "&apos;";
+            default:
+                return `&#${c.charCodeAt(0)};`;
+        }
+    });
+};