Improve the ESLint situation

.eslintrc.js

@@ -0,0 +1,45 @@
+/* ESLint Config */
+module.exports = {
+    env: {
+        'es2017': true,
+        // others envs defined by cascading .eslintrc files
+    },
+    extends: 'eslint:recommended',
+    parser: '@babel/eslint-parser',
+    parserOptions: {
+        'sourceType': 'module',
+    },
+    rules: {
+        'brace-style': ['error','1tbs',{ 'allowSingleLine': true }],
+        'indent': [
+            'off', // temporary... a lot of stuff needs to be reformatted | 2020-08-21: I guess it's not so temporary...
+            4,
+            { 'SwitchCase': 1 }
+        ],
+        'linebreak-style': ['error','unix'],
+        'no-control-regex': ['off'],
+        'no-prototype-builtins': ['off'], // should consider cleaning up the code and turning this back on at some point
+        'no-trailing-spaces': ['error'],
+        'no-unused-vars': [
+            'error', {
+                'argsIgnorePattern': '^_',
+                'varsIgnorePattern': '^_|^Promise$'
+            }
+        ],
+        'semi': ['error','always'],
+        'quotes': ['off'] // Old code uses double quotes, new code uses single / template
+    },
+    ignorePatterns: [
+        // These are not ours
+        'www/js/dash.all.min.js',
+        'www/js/jquery-1.12.4.min.js',
+        'www/js/jquery-ui.js',
+        'www/js/peertube.js',
+        'www/js/playerjs-0.0.12.js',
+        'www/js/sc.js',
+        'www/js/video.js',
+        'www/js/videojs-contrib-hls.min.js',
+        'www/js/videojs-dash.js',
+        'www/js/videojs-resolution-switcher.js',
+    ],
+}

.eslintrc.yml

@@ -1,35 +0,0 @@
-env:
-  es6: true
-  node: true
-extends: 'eslint:recommended'
-parser: '@babel/eslint-parser'
-parserOptions:
-  sourceType: module
-  ecmaVersion: 2017 # For async/await
-rules:
-  brace-style:
-    - error
-    - 1tbs
-    - allowSingleLine: true
-  indent:
-    - off # temporary... a lot of stuff needs to be reformatted | 2020-08-21: I guess it's not so temporary...
-    - 4
-    - SwitchCase: 1
-  linebreak-style:
-    - error
-    - unix
-  no-control-regex:
-    - off
-  no-prototype-builtins:
-    - off # should consider cleaning up the code and turning this back on at some point
-  no-trailing-spaces:
-    - error
-  no-unused-vars:
-    - error
-    - argsIgnorePattern: ^_
-      varsIgnorePattern: ^_|^Promise$
-  semi:
-    - error
-    - always
-  quotes:
-    - off # Old code uses double quotes, new code uses single / template

src/.eslintrc.json

@@ -0,0 +1 @@
+{ "env": { "node": true } }

www/.eslintrc.json

@@ -0,0 +1,50 @@
+{
+    "env": { "browser": true, "jquery": true },
+    "globals": {
+        "CHANNEL": "writable",
+        "CHANNELNAME": "writable",
+        "CHATHIST": "writable",
+        "CHATHISTIDX": "writable",
+        "CHATSOUND": "writable",
+        "CHATTHROTTLE": "writable",
+        "CLIENT": "writable",
+        "CSEMOTELIST": "writable",
+        "DEFAULT_THEME": "writable",
+        "EMOTELIST": "writable",
+        "EMOTELISTMODAL": "writable",
+        "FILTER_FROM": "writable",
+        "FILTER_TO": "writable",
+        "FOCUSED": "writable",
+        "GS_VERSION": "writable",
+        "HAS_CONNECTED_BEFORE": "writable",
+        "IGNORE_SCROLL_EVENT": "writable",
+        "IGNORED": "writable",
+        "IMAGE_MATCH": "writable",
+        "JSPREF": "writable",
+        "KICKED": "writable",
+        "LASTCHAT": "writable",
+        "LEADTMR": "writable",
+        "PAGETITLE": "writable",
+        "PL_ACTION_QUEUE": "writable",
+        "PL_AFTER": "writable",
+        "PL_CURRENT": "writable",
+        "PL_FROM": "writable",
+        "PL_QUEUED_ACTIONS": "writable",
+        "PL_WAIT_SCROLL": "writable",
+        "PLAYER": "writable",
+        "REBUILDING": "writable",
+        "SCROLLCHAT": "writable",
+        "SOCKETIO_CONNECT_ERROR_COUNT": "writable",
+        "SUPERADMIN": "writable",
+        "TITLE_BLINK": "writable",
+        "USEROPTS": "writable",
+        "VHEIGHT": "writable",
+        "VOLUME": "writable",
+        "VWIDTH": "writable",
+        "CyTube": "writable",
+        "Rank": "writable",
+        "getOpt": "writable",
+        "setOpt": "writable",
+        "socket": "writable"
+    }
+}

www/js/data.js

@@ -1,3 +1,4 @@
+/*eslint no-unused-vars: "off"*/
 var CL_VERSION = 3.0;
 var GS_VERSION = 1.7; // Google Drive Userscript