[mod] SearXNG JavaScript Style Guide (eslint:recommended)

The SearXNG JavaScript Style Guide is a set of eslint rules [1] based on the
eslint:recommended [2] rules.

    "extends": "eslint:recommended"

The additional rules adopted from the JavaScript Standard Style [3][4].

[1] https://eslint.org/docs/rules/
[2] https://github.com/kunalgolani/eslint-config/tree/master/packages/recommended
[3] https://standardjs.com/rules.html#javascript-standard-style
[4] https://github.com/standard/eslint-config-standard/blob/master/.eslintrc.json

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>

searx/static/themes/simple/.eslintrc.json

@@ -9,5 +9,21 @@
         "ecmaVersion": 12
     },
     "rules": {
+        "indent": ["error", 2],
+        "keyword-spacing": ["error", { "before": true, "after": true }],
+        "no-trailing-spaces": 2,
+        "space-before-function-paren": ["error", "always"],
+        "space-infix-ops": "error",
+        "comma-spacing": ["error", { "before": false, "after": true }],
+        "brace-style": ["error", "1tbs", { "allowSingleLine": true }],
+        "curly": ["error", "multi-line"],
+        "block-spacing": ["error", "always"],
+        "comma-spacing": ["error", { "before": false, "after": true }],
+        "dot-location": ["error", "property"],
+        "key-spacing": ["error", { "beforeColon": false, "afterColon": true }],
+        "spaced-comment": ["error", "always", {
+            "line": { "markers": ["*package", "!", "/", ",", "="] },
+            "block": { "balanced": true, "markers": ["*package", "!", ",", ":", "::", "flow-include"], "exceptions": ["*"] }
+        }]
     }
 }

searx/static/themes/simple/gruntfile.js

@@ -27,7 +27,8 @@ module.exports = function(grunt) {
     eslint: {
       options: {
         overrideConfigFile: '.eslintrc.json',
-        failOnError: false
+        failOnError: false,
+        fix: grunt.option('fix')
       },
       target: [
         'svg4web.svgo.js',

searx/static/themes/simple/package.json

@@ -30,6 +30,7 @@
     "all": "npm install && grunt",
     "build": "grunt",
     "eslint": "grunt eslint",
+    "eslint-fix": "grunt eslint --fix",
     "watch": "grunt watch",
     "webfont": "grunt webfont",
     "clean": "rm -Rf node_modules package-lock.json ion.less",