tools: update ESLint to 3.4.0

PR-URL: #8296
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Benjamin Gruenbaum <[email protected]>
Reviewed-By: Roman Reiss <[email protected]>

Author: Trott

tools/eslint/README.md

@@ -155,13 +155,14 @@ ESLint follows [semantic versioning](http://semver.org). However, due to the nat
 * Minor release (might break your lint build)
     * A bug fix in a rule that results in ESLint reporting more errors.
     * A new rule is created.
-    * A new option to an existing rule is created.
+    * A new option to an existing rule that does not result in ESLint reporting more errors by default.
     * An existing rule is deprecated.
     * A new CLI capability is created.
     * New capabilities to the public API are added (new classes, new methods, new arguments to existing methods, etc.).
     * A new formatter is created.
 * Major release (likely to break your lint build)
     * `eslint:recommended` is updated.
+    * A new option to an existing rule that results in ESLint reporting more errors by default.
     * An existing rule is removed.
     * An existing formatter is removed.
     * Part of the public API is removed or changed in an incompatible way.

tools/eslint/bin/eslint.js

@@ -0,0 +1,77 @@
+#!/usr/bin/env node
+
+/**
+ * @fileoverview Main CLI that is run via the eslint command.
+ * @author Nicholas C. Zakas
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Helpers
+//------------------------------------------------------------------------------
+
+var useStdIn = (process.argv.indexOf("--stdin") > -1),
+    init = (process.argv.indexOf("--init") > -1),
+    debug = (process.argv.indexOf("--debug") > -1);
+
+// must do this initialization *before* other requires in order to work
+if (debug) {
+    require("debug").enable("eslint:*,-eslint:code-path");
+}
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+// now we can safely include the other modules that use debug
+var concat = require("concat-stream"),
+    cli = require("../lib/cli"),
+    path = require("path"),
+    fs = require("fs");
+
+//------------------------------------------------------------------------------
+// Execution
+//------------------------------------------------------------------------------
+
+process.on("uncaughtException", function(err){
+    // lazy load
+    var lodash = require("lodash");
+
+    if (typeof err.messageTemplate === "string" && err.messageTemplate.length > 0) {
+        var template = lodash.template(fs.readFileSync(path.resolve(__dirname, "../messages/" + err.messageTemplate + ".txt"), "utf-8"));
+
+        console.log("\nOops! Something went wrong! :(");
+        console.log("\n" + template(err.messageData || {}));
+    } else {
+        console.log(err.message);
+        console.log(err.stack);
+    }
+
+    process.exit(1);
+});
+
+if (useStdIn) {
+    process.stdin.pipe(concat({ encoding: "string" }, function(text) {
+        try {
+            process.exitCode = cli.execute(process.argv, text);
+        } catch (ex) {
+            console.error(ex.message);
+            console.error(ex.stack);
+            process.exitCode = 1;
+        }
+    }));
+} else if (init) {
+    var configInit = require("../lib/config/config-initializer");
+    configInit.initializeConfig(function(err) {
+        if (err) {
+            process.exitCode = 1;
+            console.error(err.message);
+            console.error(err.stack);
+        } else {
+            process.exitCode = 0;
+        }
+    });
+} else {
+    process.exitCode = cli.execute(process.argv);
+}