tools: move eslint from tools to tools/node_modules

This is required because we need to add the babel-eslint dependency
and it has to be able to resolve "eslint".
babel-eslint is required to support future ES features such as async
iterators and import.meta.

Refs: https://github.com/nodejs/node/pull/17755
PR-URL: https://github.com/nodejs/node/pull/17820
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>

15 files changed, 1101 insertions, 0 deletions

diff --git a/tools/node_modules/eslint/lib/formatters/checkstyle.js b/tools/node_modules/eslint/lib/formatters/checkstyle.js
new file mode 100644
index 0000000000..720e831a3e
--- /dev/null
+++ b/tools/node_modules/eslint/lib/formatters/checkstyle.js
@@ -0,0 +1,60 @@
+/**
+ * @fileoverview CheckStyle XML reporter
+ * @author Ian Christian Myers
+ */
+"use strict";
+
+const xmlEscape = require("../util/xml-escape");
+
+//------------------------------------------------------------------------------
+// Helper Functions
+//------------------------------------------------------------------------------
+
+/**
+ * Returns the severity of warning or error
+ * @param {Object} message message object to examine
+ * @returns {string} severity level
+ * @private
+ */
+function getMessageType(message) {
+    if (message.fatal || message.severity === 2) {
+        return "error";
+    }
+    return "warning";
+
+}
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+module.exports = function(results) {
+
+    let output = "";
+
+    output += "<?xml version=\"1.1\" encoding=\"utf-8\"?>";
+    output += "<checkstyle version=\"4.3\">";
+
+    results.forEach(result => {
+        const messages = result.messages;
+
+        output += `<file name="${xmlEscape(result.filePath)}">`;
+
+        messages.forEach(message => {
+            output += [
+                `<error line="${xmlEscape(message.line)}"`,
+                `column="${xmlEscape(message.column)}"`,
+                `severity="${xmlEscape(getMessageType(message))}"`,
+                `message="${xmlEscape(message.message)}${message.ruleId ? ` (${message.ruleId})` : ""}"`,
+                `source="${message.ruleId ? xmlEscape(`eslint.rules.${message.ruleId}`) : ""}" />`
+            ].join(" ");
+        });
+
+        output += "</file>";
+
+    });
+
+    output += "</checkstyle>";
+
+    return output;
+};
diff --git a/tools/node_modules/eslint/lib/formatters/codeframe.js b/tools/node_modules/eslint/lib/formatters/codeframe.js
new file mode 100644
index 0000000000..0b97a0d818
--- /dev/null
+++ b/tools/node_modules/eslint/lib/formatters/codeframe.js
@@ -0,0 +1,138 @@
+/**
+ * @fileoverview Codeframe reporter
+ * @author Vitor Balocco
+ */
+"use strict";
+
+const chalk = require("chalk");
+const codeFrame = require("babel-code-frame");
+const path = require("path");
+
+//------------------------------------------------------------------------------
+// Helpers
+//------------------------------------------------------------------------------
+
+/**
+ * Given a word and a count, append an s if count is not one.
+ * @param   {string} word  A word in its singular form.
+ * @param   {number} count A number controlling whether word should be pluralized.
+ * @returns {string}       The original word with an s on the end if count is not one.
+ */
+function pluralize(word, count) {
+    return (count === 1 ? word : `${word}s`);
+}
+
+/**
+ * Gets a formatted relative file path from an absolute path and a line/column in the file.
+ * @param   {string} filePath The absolute file path to format.
+ * @param   {number} line     The line from the file to use for formatting.
+ * @param   {number} column   The column from the file to use for formatting.
+ * @returns {string}          The formatted file path.
+ */
+function formatFilePath(filePath, line, column) {
+    let relPath = path.relative(process.cwd(), filePath);
+
+    if (line && column) {
+        relPath += `:${line}:${column}`;
+    }
+
+    return chalk.green(relPath);
+}
+
+/**
+ * Gets the formatted output for a given message.
+ * @param   {Object} message      The object that represents this message.
+ * @param   {Object} parentResult The result object that this message belongs to.
+ * @returns {string}              The formatted output.
+ */
+function formatMessage(message, parentResult) {
+    const type = (message.fatal || message.severity === 2) ? chalk.red("error") : chalk.yellow("warning");
+    const msg = `${chalk.bold(message.message.replace(/([^ ])\.$/, "$1"))}`;
+    const ruleId = message.fatal ? "" : chalk.dim(`(${message.ruleId})`);
+    const filePath = formatFilePath(parentResult.filePath, message.line, message.column);
+    const sourceCode = parentResult.output ? parentResult.output : parentResult.source;
+
+    const firstLine = [
+        `${type}:`,
+        `${msg}`,
+        ruleId ? `${ruleId}` : "",
+        sourceCode ? `at ${filePath}:` : `at ${filePath}`
+    ].filter(String).join(" ");
+
+    const result = [firstLine];
+
+    if (sourceCode) {
+        result.push(
+            codeFrame(sourceCode, message.line, message.column, { highlightCode: false })
+        );
+    }
+
+    return result.join("\n");
+}
+
+/**
+ * Gets the formatted output summary for a given number of errors and warnings.
+ * @param   {number} errors   The number of errors.
+ * @param   {number} warnings The number of warnings.
+ * @param   {number} fixableErrors The number of fixable errors.
+ * @param   {number} fixableWarnings The number of fixable warnings.
+ * @returns {string}          The formatted output summary.
+ */
+function formatSummary(errors, warnings, fixableErrors, fixableWarnings) {
+    const summaryColor = errors > 0 ? "red" : "yellow";
+    const summary = [];
+    const fixablesSummary = [];
+
+    if (errors > 0) {
+        summary.push(`${errors} ${pluralize("error", errors)}`);
+    }
+
+    if (warnings > 0) {
+        summary.push(`${warnings} ${pluralize("warning", warnings)}`);
+    }
+
+    if (fixableErrors > 0) {
+        fixablesSummary.push(`${fixableErrors} ${pluralize("error", fixableErrors)}`);
+    }
+
+    if (fixableWarnings > 0) {
+        fixablesSummary.push(`${fixableWarnings} ${pluralize("warning", fixableWarnings)}`);
+    }
+
+    let output = chalk[summaryColor].bold(`${summary.join(" and ")} found.`);
+
+    if (fixableErrors || fixableWarnings) {
+        output += chalk[summaryColor].bold(`\n${fixablesSummary.join(" and ")} potentially fixable with the \`--fix\` option.`);
+    }
+
+    return output;
+}
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+module.exports = function(results) {
+    let errors = 0;
+    let warnings = 0;
+    let fixableErrors = 0;
+    let fixableWarnings = 0;
+
+    const resultsWithMessages = results.filter(result => result.messages.length > 0);
+
+    let output = resultsWithMessages.reduce((resultsOutput, result) => {
+        const messages = result.messages.map(message => `${formatMessage(message, result)}\n\n`);
+
+        errors += result.errorCount;
+        warnings += result.warningCount;
+        fixableErrors += result.fixableErrorCount;
+        fixableWarnings += result.fixableWarningCount;
+
+        return resultsOutput.concat(messages);
+    }, []).join("\n");
+
+    output += "\n";
+    output += formatSummary(errors, warnings, fixableErrors, fixableWarnings);
+
+    return (errors + warnings) > 0 ? output : "";
+};
diff --git a/tools/node_modules/eslint/lib/formatters/compact.js b/tools/node_modules/eslint/lib/formatters/compact.js
new file mode 100644
index 0000000000..2b540bde23
--- /dev/null
+++ b/tools/node_modules/eslint/lib/formatters/compact.js
@@ -0,0 +1,60 @@
+/**
+ * @fileoverview Compact reporter
+ * @author Nicholas C. Zakas
+ */
+"use strict";
+
+//------------------------------------------------------------------------------
+// Helper Functions
+//------------------------------------------------------------------------------
+
+/**
+ * Returns the severity of warning or error
+ * @param {Object} message message object to examine
+ * @returns {string} severity level
+ * @private
+ */
+function getMessageType(message) {
+    if (message.fatal || message.severity === 2) {
+        return "Error";
+    }
+    return "Warning";
+
+}
+
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+module.exports = function(results) {
+
+    let output = "",
+        total = 0;
+
+    results.forEach(result => {
+
+        const messages = result.messages;
+
+        total += messages.length;
+
+        messages.forEach(message => {
+
+            output += `${result.filePath}: `;
+            output += `line ${message.line || 0}`;
+            output += `, col ${message.column || 0}`;
+            output += `, ${getMessageType(message)}`;
+            output += ` - ${message.message}`;
+            output += message.ruleId ? ` (${message.ruleId})` : "";
+            output += "\n";
+
+        });
+
+    });
+
+    if (total > 0) {
+        output += `\n${total} problem${total !== 1 ? "s" : ""}`;
+    }
+
+    return output;
+};
diff --git a/tools/node_modules/eslint/lib/formatters/html-template-message.html b/tools/node_modules/eslint/lib/formatters/html-template-message.html
new file mode 100644
index 0000000000..66f49ff49d
--- /dev/null
+++ b/tools/node_modules/eslint/lib/formatters/html-template-message.html
@@ -0,0 +1,8 @@
+<tr style="display:none" class="f-<%= parentIndex %>">
+    <td><%= lineNumber %>:<%= columnNumber %></td>
+    <td class="clr-<%= severityNumber %>"><%= severityName %></td>
+    <td><%- message %></td>
+    <td>
+        <a href="https://eslint.org/docs/rules/<%= ruleId %>" target="_blank"><%= ruleId %></a>
+    </td>
+</tr>
diff --git a/tools/node_modules/eslint/lib/formatters/html-template-page.html b/tools/node_modules/eslint/lib/formatters/html-template-page.html
new file mode 100644
index 0000000000..4016576fa0
--- /dev/null
+++ b/tools/node_modules/eslint/lib/formatters/html-template-page.html
@@ -0,0 +1,115 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset="UTF-8">
+        <title>ESLint Report</title>
+        <style>
+            body {
+                font-family:Arial, "Helvetica Neue", Helvetica, sans-serif;
+                font-size:16px;
+                font-weight:normal;
+                margin:0;
+                padding:0;
+                color:#333
+            }
+            #overview {
+                padding:20px 30px
+            }
+            td, th {
+                padding:5px 10px
+            }
+            h1 {
+                margin:0
+            }
+            table {
+                margin:30px;
+                width:calc(100% - 60px);
+                max-width:1000px;
+                border-radius:5px;
+                border:1px solid #ddd;
+                border-spacing:0px;
+            }
+            th {
+                font-weight:400;
+                font-size:medium;
+                text-align:left;
+                cursor:pointer
+            }
+            td.clr-1, td.clr-2, th span {
+                font-weight:700
+            }
+            th span {
+                float:right;
+                margin-left:20px
+            }
+            th span:after {
+                content:"";
+                clear:both;
+                display:block
+            }
+            tr:last-child td {
+                border-bottom:none
+            }
+            tr td:first-child, tr td:last-child {
+                color:#9da0a4
+            }
+            #overview.bg-0, tr.bg-0 th {
+                color:#468847;
+                background:#dff0d8;
+                border-bottom:1px solid #d6e9c6
+            }
+            #overview.bg-1, tr.bg-1 th {
+                color:#f0ad4e;
+                background:#fcf8e3;
+                border-bottom:1px solid #fbeed5
+            }
+            #overview.bg-2, tr.bg-2 th {
+                color:#b94a48;
+                background:#f2dede;
+                border-bottom:1px solid #eed3d7
+            }
+            td {
+                border-bottom:1px solid #ddd
+            }
+            td.clr-1 {
+                color:#f0ad4e
+            }
+            td.clr-2 {
+                color:#b94a48
+            }
+            td a {
+                color:#3a33d1;
+                text-decoration:none
+            }
+            td a:hover {
+                color:#272296;
+                text-decoration:underline
+            }
+        </style>
+    </head>
+    <body>
+        <div id="overview" class="bg-<%= reportColor %>">
+            <h1>ESLint Report</h1>
+            <div>
+                <span><%= reportSummary %></span> - Generated on <%= date %>
+            </div>
+        </div>
+        <table>
+            <tbody>
+                <%= results %>
+            </tbody>
+        </table>
+        <script type="text/javascript">
+            var groups = document.querySelectorAll("tr[data-group]");
+            for (i = 0; i < groups.length; i++) {
+                groups[i].addEventListener("click", function() {
+                    var inGroup = document.getElementsByClassName(this.getAttribute("data-group"));
+                    this.innerHTML = (this.innerHTML.indexOf("+") > -1) ? this.innerHTML.replace("+", "-") : this.innerHTML.replace("-", "+");
+                    for (var j = 0; j < inGroup.length; j++) {
+                        inGroup[j].style.display = (inGroup[j].style.display !== "none") ? "none" : "table-row";
+                    }
+                });
+            }
+        </script>
+    </body>
+</html>
diff --git a/tools/node_modules/eslint/lib/formatters/html-template-result.html b/tools/node_modules/eslint/lib/formatters/html-template-result.html
new file mode 100644
index 0000000000..f4a55933c2
--- /dev/null
+++ b/tools/node_modules/eslint/lib/formatters/html-template-result.html
@@ -0,0 +1,6 @@
+<tr class="bg-<%- color %>" data-group="f-<%- index %>">
+    <th colspan="4">
+        [+] <%- filePath %>
+        <span><%- summary %></span>
+    </th>
+</tr>
diff --git a/tools/node_modules/eslint/lib/formatters/html.js b/tools/node_modules/eslint/lib/formatters/html.js
new file mode 100644
index 0000000000..d450f9dee2
--- /dev/null
+++ b/tools/node_modules/eslint/lib/formatters/html.js
@@ -0,0 +1,127 @@
+/**
+ * @fileoverview HTML reporter
+ * @author Julian Laval
+ */
+"use strict";
+
+const lodash = require("lodash");
+const fs = require("fs");
+const path = require("path");
+
+//------------------------------------------------------------------------------
+// Helpers
+//------------------------------------------------------------------------------
+
+const pageTemplate = lodash.template(fs.readFileSync(path.join(__dirname, "html-template-page.html"), "utf-8"));
+const messageTemplate = lodash.template(fs.readFileSync(path.join(__dirname, "html-template-message.html"), "utf-8"));
+const resultTemplate = lodash.template(fs.readFileSync(path.join(__dirname, "html-template-result.html"), "utf-8"));
+
+/**
+ * Given a word and a count, append an s if count is not one.
+ * @param {string} word A word in its singular form.
+ * @param {int} count A number controlling whether word should be pluralized.
+ * @returns {string} The original word with an s on the end if count is not one.
+ */
+function pluralize(word, count) {
+    return (count === 1 ? word : `${word}s`);
+}
+
+/**
+ * Renders text along the template of x problems (x errors, x warnings)
+ * @param {string} totalErrors Total errors
+ * @param {string} totalWarnings Total warnings
+ * @returns {string} The formatted string, pluralized where necessary
+ */
+function renderSummary(totalErrors, totalWarnings) {
+    const totalProblems = totalErrors + totalWarnings;
+    let renderedText = `${totalProblems} ${pluralize("problem", totalProblems)}`;
+
+    if (totalProblems !== 0) {
+        renderedText += ` (${totalErrors} ${pluralize("error", totalErrors)}, ${totalWarnings} ${pluralize("warning", totalWarnings)})`;
+    }
+    return renderedText;
+}
+
+/**
+ * Get the color based on whether there are errors/warnings...
+ * @param {string} totalErrors Total errors
+ * @param {string} totalWarnings Total warnings
+ * @returns {int} The color code (0 = green, 1 = yellow, 2 = red)
+ */
+function renderColor(totalErrors, totalWarnings) {
+    if (totalErrors !== 0) {
+        return 2;
+    }
+    if (totalWarnings !== 0) {
+        return 1;
+    }
+    return 0;
+}
+
+/**
+ * Get HTML (table rows) describing the messages.
+ * @param {Array} messages Messages.
+ * @param {int} parentIndex Index of the parent HTML row.
+ * @returns {string} HTML (table rows) describing the messages.
+ */
+function renderMessages(messages, parentIndex) {
+
+    /**
+     * Get HTML (table row) describing a message.
+     * @param {Object} message Message.
+     * @returns {string} HTML (table row) describing a message.
+     */
+    return lodash.map(messages, message => {
+        const lineNumber = message.line || 0;
+        const columnNumber = message.column || 0;
+
+        return messageTemplate({
+            parentIndex,
+            lineNumber,
+            columnNumber,
+            severityNumber: message.severity,
+            severityName: message.severity === 1 ? "Warning" : "Error",
+            message: message.message,
+            ruleId: message.ruleId
+        });
+    }).join("\n");
+}
+
+/**
+ * @param {Array} results Test results.
+ * @returns {string} HTML string describing the results.
+ */
+function renderResults(results) {
+    return lodash.map(results, (result, index) => resultTemplate({
+        index,
+        color: renderColor(result.errorCount, result.warningCount),
+        filePath: result.filePath,
+        summary: renderSummary(result.errorCount, result.warningCount)
+
+    }) + renderMessages(result.messages, index)).join("\n");
+}
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+module.exports = function(results) {
+    let totalErrors,
+        totalWarnings;
+
+    totalErrors = 0;
+    totalWarnings = 0;
+
+    // Iterate over results to get totals
+    results.forEach(result => {
+        totalErrors += result.errorCount;
+        totalWarnings += result.warningCount;
+    });
+
+    return pageTemplate({
+        date: new Date(),
+        reportColor: renderColor(totalErrors, totalWarnings),
+        reportSummary: renderSummary(totalErrors, totalWarnings),
+        results: renderResults(results)
+    });
+};
diff --git a/tools/node_modules/eslint/lib/formatters/jslint-xml.js b/tools/node_modules/eslint/lib/formatters/jslint-xml.js
new file mode 100644
index 0000000000..e152d8bdd7
--- /dev/null
+++ b/tools/node_modules/eslint/lib/formatters/jslint-xml.js
@@ -0,0 +1,41 @@
+/**
+ * @fileoverview JSLint XML reporter
+ * @author Ian Christian Myers
+ */
+"use strict";
+
+const xmlEscape = require("../util/xml-escape");
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+module.exports = function(results) {
+
+    let output = "";
+
+    output += "<?xml version=\"1.1\" encoding=\"utf-8\"?>";
+    output += "<jslint>";
+
+    results.forEach(result => {
+        const messages = result.messages;
+
+        output += `<file name="${result.filePath}">`;
+
+        messages.forEach(message => {
+            output += [
+                `<issue line="${message.line}"`,
+                `char="${message.column}"`,
+                `evidence="${xmlEscape(message.source || "")}"`,
+                `reason="${xmlEscape(message.message || "")}${message.ruleId ? ` (${message.ruleId})` : ""}" />`
+            ].join(" ");
+        });
+
+        output += "</file>";
+
+    });
+
+    output += "</jslint>";
+
+    return output;
+};
diff --git a/tools/node_modules/eslint/lib/formatters/json.js b/tools/node_modules/eslint/lib/formatters/json.js
new file mode 100644
index 0000000000..82138af187
--- /dev/null
+++ b/tools/node_modules/eslint/lib/formatters/json.js
@@ -0,0 +1,13 @@
+/**
+ * @fileoverview JSON reporter
+ * @author Burak Yigit Kaya aka BYK
+ */
+"use strict";
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+module.exports = function(results) {
+    return JSON.stringify(results);
+};
diff --git a/tools/node_modules/eslint/lib/formatters/junit.js b/tools/node_modules/eslint/lib/formatters/junit.js
new file mode 100644
index 0000000000..ca666bb14c
--- /dev/null
+++ b/tools/node_modules/eslint/lib/formatters/junit.js
@@ -0,0 +1,70 @@
+/**
+ * @fileoverview jUnit Reporter
+ * @author Jamund Ferguson
+ */
+"use strict";
+
+const xmlEscape = require("../util/xml-escape");
+
+//------------------------------------------------------------------------------
+// Helper Functions
+//------------------------------------------------------------------------------
+
+/**
+ * Returns the severity of warning or error
+ * @param {Object} message message object to examine
+ * @returns {string} severity level
+ * @private
+ */
+function getMessageType(message) {
+    if (message.fatal || message.severity === 2) {
+        return "Error";
+    }
+    return "Warning";
+
+}
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+module.exports = function(results) {
+
+    let output = "";
+
+    output += "<?xml version=\"1.1\" encoding=\"utf-8\"?>\n";
+    output += "<testsuites>\n";
+
+    results.forEach(result => {
+
+        const messages = result.messages;
+
+        if (messages.length > 0) {
+            output += `<testsuite package="org.eslint" time="0" tests="${messages.length}" errors="${messages.length}" name="${result.filePath}">\n`;
+            messages.forEach(message => {
+                const type = message.fatal ? "error" : "failure";
+
+                output += `<testcase time="0" name="org.eslint.${message.ruleId || "unknown"}">`;
+                output += `<${type} message="${xmlEscape(message.message || "")}">`;
+                output += "<![CDATA[";
+                output += `line ${message.line || 0}, col `;
+                output += `${message.column || 0}, ${getMessageType(message)}`;
+                output += ` - ${xmlEscape(message.message || "")}`;
+                output += (message.ruleId ? ` (${message.ruleId})` : "");
+                output += "]]>";
+                output += `</${type}>`;
+                output += "</testcase>\n";
+            });
+            output += "</testsuite>\n";
+        } else {
+            output += `<testsuite package="org.eslint" time="0" tests="1" errors="0" name="${result.filePath}">\n`;
+            output += `<testcase time="0" name="${result.filePath}" />\n`;
+            output += "</testsuite>\n";
+        }
+
+    });
+
+    output += "</testsuites>\n";
+
+    return output;
+};
diff --git a/tools/node_modules/eslint/lib/formatters/stylish.js b/tools/node_modules/eslint/lib/formatters/stylish.js
new file mode 100644
index 0000000000..e586fe857c
--- /dev/null
+++ b/tools/node_modules/eslint/lib/formatters/stylish.js
@@ -0,0 +1,100 @@
+/**
+ * @fileoverview Stylish reporter
+ * @author Sindre Sorhus
+ */
+"use strict";
+
+const chalk = require("chalk"),
+    stripAnsi = require("strip-ansi"),
+    table = require("text-table");
+
+//------------------------------------------------------------------------------
+// Helpers
+//------------------------------------------------------------------------------
+
+/**
+ * Given a word and a count, append an s if count is not one.
+ * @param {string} word A word in its singular form.
+ * @param {int} count A number controlling whether word should be pluralized.
+ * @returns {string} The original word with an s on the end if count is not one.
+ */
+function pluralize(word, count) {
+    return (count === 1 ? word : `${word}s`);
+}
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+module.exports = function(results) {
+
+    let output = "\n",
+        errorCount = 0,
+        warningCount = 0,
+        fixableErrorCount = 0,
+        fixableWarningCount = 0,
+        summaryColor = "yellow";
+
+    results.forEach(result => {
+        const messages = result.messages;
+
+        if (messages.length === 0) {
+            return;
+        }
+
+        errorCount += result.errorCount;
+        warningCount += result.warningCount;
+        fixableErrorCount += result.fixableErrorCount;
+        fixableWarningCount += result.fixableWarningCount;
+
+        output += `${chalk.underline(result.filePath)}\n`;
+
+        output += `${table(
+            messages.map(message => {
+                let messageType;
+
+                if (message.fatal || message.severity === 2) {
+                    messageType = chalk.red("error");
+                    summaryColor = "red";
+                } else {
+                    messageType = chalk.yellow("warning");
+                }
+
+                return [
+                    "",
+                    message.line || 0,
+                    message.column || 0,
+                    messageType,
+                    message.message.replace(/([^ ])\.$/, "$1"),
+                    chalk.dim(message.ruleId || "")
+                ];
+            }),
+            {
+                align: ["", "r", "l"],
+                stringLength(str) {
+                    return stripAnsi(str).length;
+                }
+            }
+        ).split("\n").map(el => el.replace(/(\d+)\s+(\d+)/, (m, p1, p2) => chalk.dim(`${p1}:${p2}`))).join("\n")}\n\n`;
+    });
+
+    const total = errorCount + warningCount;
+
+    if (total > 0) {
+        output += chalk[summaryColor].bold([
+            "\u2716 ", total, pluralize(" problem", total),
+            " (", errorCount, pluralize(" error", errorCount), ", ",
+            warningCount, pluralize(" warning", warningCount), ")\n"
+        ].join(""));
+
+        if (fixableErrorCount > 0 || fixableWarningCount > 0) {
+            output += chalk[summaryColor].bold([
+                "  ", fixableErrorCount, pluralize(" error", fixableErrorCount), ", ",
+                fixableWarningCount, pluralize(" warning", fixableWarningCount),
+                " potentially fixable with the `--fix` option.\n"
+            ].join(""));
+        }
+    }
+
+    return total > 0 ? output : "";
+};
diff --git a/tools/node_modules/eslint/lib/formatters/table.js b/tools/node_modules/eslint/lib/formatters/table.js
new file mode 100644
index 0000000000..ebc3314e7a
--- /dev/null
+++ b/tools/node_modules/eslint/lib/formatters/table.js
@@ -0,0 +1,150 @@
+/**
+ * @fileoverview "table reporter.
+ * @author Gajus Kuizinas <gajus@gajus.com>
+ */
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const chalk = require("chalk"),
+    table = require("table").table,
+    pluralize = require("pluralize");
+
+//------------------------------------------------------------------------------
+// Helpers
+//------------------------------------------------------------------------------
+
+/**
+ * Draws text table.
+ * @param {Array<Object>} messages Error messages relating to a specific file.
+ * @returns {string} A text table.
+ */
+function drawTable(messages) {
+    const rows = [];
+
+    if (messages.length === 0) {
+        return "";
+    }
+
+    rows.push([
+        chalk.bold("Line"),
+        chalk.bold("Column"),
+        chalk.bold("Type"),
+        chalk.bold("Message"),
+        chalk.bold("Rule ID")
+    ]);
+
+    messages.forEach(message => {
+        let messageType;
+
+        if (message.fatal || message.severity === 2) {
+            messageType = chalk.red("error");
+        } else {
+            messageType = chalk.yellow("warning");
+        }
+
+        rows.push([
+            message.line || 0,
+            message.column || 0,
+            messageType,
+            message.message,
+            message.ruleId || ""
+        ]);
+    });
+
+    return table(rows, {
+        columns: {
+            0: {
+                width: 8,
+                wrapWord: true
+            },
+            1: {
+                width: 8,
+                wrapWord: true
+            },
+            2: {
+                width: 8,
+                wrapWord: true
+            },
+            3: {
+                paddingRight: 5,
+                width: 50,
+                wrapWord: true
+            },
+            4: {
+                width: 20,
+                wrapWord: true
+            }
+        },
+        drawHorizontalLine(index) {
+            return index === 1;
+        }
+    });
+}
+
+/**
+ * Draws a report (multiple tables).
+ * @param {Array} results Report results for every file.
+ * @returns {string} A column of text tables.
+ */
+function drawReport(results) {
+    let files;
+
+    files = results.map(result => {
+        if (!result.messages.length) {
+            return "";
+        }
+
+        return `\n${result.filePath}\n\n${drawTable(result.messages)}`;
+    });
+
+    files = files.filter(content => content.trim());
+
+    return files.join("");
+}
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+module.exports = function(report) {
+    let result,
+        errorCount,
+        warningCount;
+
+    result = "";
+    errorCount = 0;
+    warningCount = 0;
+
+    report.forEach(fileReport => {
+        errorCount += fileReport.errorCount;
+        warningCount += fileReport.warningCount;
+    });
+
+    if (errorCount || warningCount) {
+        result = drawReport(report);
+    }
+
+    result += `\n${table([
+        [
+            chalk.red(pluralize("Error", errorCount, true))
+        ],
+        [
+            chalk.yellow(pluralize("Warning", warningCount, true))
+        ]
+    ], {
+        columns: {
+            0: {
+                width: 110,
+                wrapWord: true
+            }
+        },
+        drawHorizontalLine() {
+            return true;
+        }
+    })}`;
+
+    return result;
+};
diff --git a/tools/node_modules/eslint/lib/formatters/tap.js b/tools/node_modules/eslint/lib/formatters/tap.js
new file mode 100644
index 0000000000..9651a2bcf1
--- /dev/null
+++ b/tools/node_modules/eslint/lib/formatters/tap.js
@@ -0,0 +1,92 @@
+/**
+ * @fileoverview TAP reporter
+ * @author Jonathan Kingston
+ */
+"use strict";
+
+const yaml = require("js-yaml");
+
+//------------------------------------------------------------------------------
+// Helper Functions
+//------------------------------------------------------------------------------
+
+/**
+ * Returns a canonical error level string based upon the error message passed in.
+ * @param {Object} message Individual error message provided by eslint
+ * @returns {string} Error level string
+ */
+function getMessageType(message) {
+    if (message.fatal || message.severity === 2) {
+        return "error";
+    }
+    return "warning";
+
+}
+
+/**
+ * Takes in a JavaScript object and outputs a TAP diagnostics string
+ * @param {Object} diagnostic JavaScript object to be embedded as YAML into output.
+ * @returns {string} diagnostics string with YAML embedded - TAP version 13 compliant
+ */
+function outputDiagnostics(diagnostic) {
+    const prefix = "  ";
+    let output = `${prefix}---\n`;
+
+    output += prefix + yaml.safeDump(diagnostic).split("\n").join(`\n${prefix}`);
+    output += "...\n";
+    return output;
+}
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+module.exports = function(results) {
+    let output = `TAP version 13\n1..${results.length}\n`;
+
+    results.forEach((result, id) => {
+        const messages = result.messages;
+        let testResult = "ok";
+        let diagnostics = {};
+
+        if (messages.length > 0) {
+            testResult = "not ok";
+
+            messages.forEach(message => {
+                const diagnostic = {
+                    message: message.message,
+                    severity: getMessageType(message),
+                    data: {
+                        line: message.line || 0,
+                        column: message.column || 0,
+                        ruleId: message.ruleId || ""
+                    }
+                };
+
+                /*
+                 * If we have multiple messages place them under a messages key
+                 * The first error will be logged as message key
+                 * This is to adhere to TAP 13 loosely defined specification of having a message key
+                 */
+                if ("message" in diagnostics) {
+                    if (typeof diagnostics.messages === "undefined") {
+                        diagnostics.messages = [];
+                    }
+                    diagnostics.messages.push(diagnostic);
+                } else {
+                    diagnostics = diagnostic;
+                }
+            });
+        }
+
+        output += `${testResult} ${id + 1} - ${result.filePath}\n`;
+
+        // If we have an error include diagnostics
+        if (messages.length > 0) {
+            output += outputDiagnostics(diagnostics);
+        }
+
+    });
+
+    return output;
+};
diff --git a/tools/node_modules/eslint/lib/formatters/unix.js b/tools/node_modules/eslint/lib/formatters/unix.js
new file mode 100644
index 0000000000..c6c4ebbdb9
--- /dev/null
+++ b/tools/node_modules/eslint/lib/formatters/unix.js
@@ -0,0 +1,58 @@
+/**
+ * @fileoverview unix-style formatter.
+ * @author oshi-shinobu
+ */
+"use strict";
+
+//------------------------------------------------------------------------------
+// Helper Functions
+//------------------------------------------------------------------------------
+
+/**
+ * Returns a canonical error level string based upon the error message passed in.
+ * @param {Object} message Individual error message provided by eslint
+ * @returns {string} Error level string
+ */
+function getMessageType(message) {
+    if (message.fatal || message.severity === 2) {
+        return "Error";
+    }
+    return "Warning";
+
+}
+
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+module.exports = function(results) {
+
+    let output = "",
+        total = 0;
+
+    results.forEach(result => {
+
+        const messages = result.messages;
+
+        total += messages.length;
+
+        messages.forEach(message => {
+
+            output += `${result.filePath}:`;
+            output += `${message.line || 0}:`;
+            output += `${message.column || 0}:`;
+            output += ` ${message.message} `;
+            output += `[${getMessageType(message)}${message.ruleId ? `/${message.ruleId}` : ""}]`;
+            output += "\n";
+
+        });
+
+    });
+
+    if (total > 0) {
+        output += `\n${total} problem${total !== 1 ? "s" : ""}`;
+    }
+
+    return output;
+};
diff --git a/tools/node_modules/eslint/lib/formatters/visualstudio.js b/tools/node_modules/eslint/lib/formatters/visualstudio.js
new file mode 100644
index 0000000000..0d49431db8
--- /dev/null
+++ b/tools/node_modules/eslint/lib/formatters/visualstudio.js
@@ -0,0 +1,63 @@
+/**
+ * @fileoverview Visual Studio compatible formatter
+ * @author Ronald Pijnacker
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Helper Functions
+//------------------------------------------------------------------------------
+
+/**
+ * Returns the severity of warning or error
+ * @param {Object} message message object to examine
+ * @returns {string} severity level
+ * @private
+ */
+function getMessageType(message) {
+    if (message.fatal || message.severity === 2) {
+        return "error";
+    }
+    return "warning";
+
+}
+
+
+//------------------------------------------------------------------------------
+// Public Interface
+//------------------------------------------------------------------------------
+
+module.exports = function(results) {
+
+    let output = "",
+        total = 0;
+
+    results.forEach(result => {
+
+        const messages = result.messages;
+
+        total += messages.length;
+
+        messages.forEach(message => {
+
+            output += result.filePath;
+            output += `(${message.line || 0}`;
+            output += message.column ? `,${message.column}` : "";
+            output += `): ${getMessageType(message)}`;
+            output += message.ruleId ? ` ${message.ruleId}` : "";
+            output += ` : ${message.message}`;
+            output += "\n";
+
+        });
+
+    });
+
+    if (total === 0) {
+        output += "no problems";
+    } else {
+        output += `\n${total} problem${total !== 1 ? "s" : ""}`;
+    }
+
+    return output;
+};