ci: added code linting

.eslintignore

@@ -0,0 +1 @@
+node_modules

.eslintrc.yml

@@ -0,0 +1,111 @@
+env:
+  node: true
+  es6: true
+  mocha: true
+  browser: true
+
+plugins:
+  - sonarjs
+
+extends:
+  - eslint:recommended
+  - plugin:sonarjs/recommended
+
+parserOptions:
+  ecmaVersion: 2018
+  requireConfigFile: false
+
+rules:
+  # Ignore Rules
+  strict: 0
+  no-underscore-dangle: 0
+  no-mixed-requires: 0
+  no-process-exit: 0
+  no-warning-comments: 0
+  no-use-before-define: 0
+  curly: 0
+  no-multi-spaces: 0
+  no-alert: 0
+  consistent-return: 0
+  consistent-this: [0, self]
+  func-style: 0
+  max-nested-callbacks: 0
+  camelcase: 0
+  no-dupe-class-members: 0
+  security/detect-object-injection: 0
+  sonarjs/no-small-switch: 0
+  sonarjs/no-nested-template-literals: 0
+
+  # Warnings
+  no-debugger: 1
+  no-empty: 1
+  no-invalid-regexp: 1
+  no-unused-expressions: 1
+  no-native-reassign: 1
+  no-fallthrough: 1
+  sonarjs/cognitive-complexity: 1
+
+  # Errors
+  eqeqeq: 2
+  no-undef: 2
+  no-dupe-keys: 2
+  no-empty-character-class: 2
+  no-self-compare: 2
+  valid-typeof: 2
+  handle-callback-err: 2
+  no-shadow-restricted-names: 2
+  no-new-require: 2
+  no-mixed-spaces-and-tabs: 2
+  block-scoped-var: 2
+  no-else-return: 2
+  no-throw-literal: 2
+  no-void: 2
+  radix: 2
+  wrap-iife: [2, outside]
+  no-shadow: 0
+  no-path-concat: 2
+  valid-jsdoc: [0, {requireReturn: false, requireParamDescription: false, requireReturnDescription: false}]
+
+  # stylistic errors
+  no-spaced-func: 2
+  semi-spacing: 2
+  quotes: [2, 'single']
+  key-spacing: [2, { beforeColon: false, afterColon: true }]
+  indent: [2, 2]
+  no-lonely-if: 2
+  no-floating-decimal: 2
+  brace-style: [2, 1tbs, { allowSingleLine: true }]
+  comma-style: [2, last]
+  no-multiple-empty-lines: [2, {max: 1}]
+  no-nested-ternary: 2
+  operator-assignment: [2, always]
+  padded-blocks: [2, never]
+  quote-props: [2, as-needed]
+  keyword-spacing: [2, {'before': true, 'after': true, 'overrides': {}}]
+  space-before-blocks: [2, always]
+  array-bracket-spacing: [2, never]
+  computed-property-spacing: [2, never]
+  space-in-parens: [2, never]
+  space-unary-ops: [2, {words: true, nonwords: false}]
+  wrap-regex: 2
+  linebreak-style: 0
+  semi: [2, always]
+  arrow-spacing: [2, {before: true, after: true}]
+  no-class-assign: 2
+  no-const-assign: 2
+  no-this-before-super: 2
+  no-var: 2
+  object-shorthand: [2, always]
+  prefer-arrow-callback: 2
+  prefer-const: 2
+  prefer-spread: 2
+  prefer-template: 2
+
+overrides:
+  - files: 
+      - "test/**"
+    rules:
+      prefer-arrow-callback: 0
+      sonarjs/no-duplicate-string: 0
+      security/detect-object-injection: 0
+      security/detect-non-literal-fs-filename: 0

index.js

@@ -1,22 +1,22 @@
 module.exports = {
-    'schemas': {
-        '2.0.0': require('./schemas/2.0.0.json'),
-        '2.1.0': require('./schemas/2.1.0.json'),
-        '2.2.0': require('./schemas/2.2.0.json'),
-        '2.3.0': require('./schemas/2.3.0.json'),
-        '2.4.0': require('./schemas/2.4.0.json'),
-        '2.5.0': require('./schemas/2.5.0.json'),
-        '2.6.0': require('./schemas/2.6.0.json'),
-        '3.0.0': require('./schemas/3.0.0.json'),
-    },
-    'schemasWithoutId': {
-        '2.0.0': require('./schemas/2.0.0-without-$id.json'),
-        '2.1.0': require('./schemas/2.1.0-without-$id.json'),
-        '2.2.0': require('./schemas/2.2.0-without-$id.json'),
-        '2.3.0': require('./schemas/2.3.0-without-$id.json'),
-        '2.4.0': require('./schemas/2.4.0-without-$id.json'),
-        '2.5.0': require('./schemas/2.5.0-without-$id.json'),
-        '2.6.0': require('./schemas/2.6.0-without-$id.json'),
-        '3.0.0': require('./schemas/3.0.0-without-$id.json'),
-    }
+  schemas: {
+    '2.0.0': require('./schemas/2.0.0.json'),
+    '2.1.0': require('./schemas/2.1.0.json'),
+    '2.2.0': require('./schemas/2.2.0.json'),
+    '2.3.0': require('./schemas/2.3.0.json'),
+    '2.4.0': require('./schemas/2.4.0.json'),
+    '2.5.0': require('./schemas/2.5.0.json'),
+    '2.6.0': require('./schemas/2.6.0.json'),
+    '3.0.0': require('./schemas/3.0.0.json'),
+  },
+  schemasWithoutId: {
+    '2.0.0': require('./schemas/2.0.0-without-$id.json'),
+    '2.1.0': require('./schemas/2.1.0-without-$id.json'),
+    '2.2.0': require('./schemas/2.2.0-without-$id.json'),
+    '2.3.0': require('./schemas/2.3.0-without-$id.json'),
+    '2.4.0': require('./schemas/2.4.0-without-$id.json'),
+    '2.5.0': require('./schemas/2.5.0-without-$id.json'),
+    '2.6.0': require('./schemas/2.6.0-without-$id.json'),
+    '3.0.0': require('./schemas/3.0.0-without-$id.json'),
+  }
 };