From 5acf815b7908453582ae1cf53c240310419ba7b7 Mon Sep 17 00:00:00 2001
From: tophf <tophf@gmx.com>
Date: Sat, 3 Mar 2018 17:28:29 +0300
Subject: [PATCH] report invalid selector in :not() as a warning

to prevent failures when updating usercss styles that have to override [currently] invalid :not() selectors used by the site

see #356
---
 edit/lint-defaults-csslint.js          |  1 +
 edit/lint.js                           |  2 +-
 vendor-overwrites/csslint/csslint.js   | 13 +++++++++++++
 vendor-overwrites/csslint/parserlib.js |  2 +-
 4 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/edit/lint-defaults-csslint.js b/edit/lint-defaults-csslint.js
index 104f767e..465a8215 100644
--- a/edit/lint-defaults-csslint.js
+++ b/edit/lint-defaults-csslint.js
@@ -10,6 +10,7 @@ window.linterConfig.defaults.csslint = {
   'duplicate-properties': 1,
   'empty-rules': 1,
   'errors': 1,
+  'warnings': 1,
   'known-properties': 1,
 
   // Default disabled
diff --git a/edit/lint.js b/edit/lint.js
index 31a17484..ff44300c 100644
--- a/edit/lint.js
+++ b/edit/lint.js
@@ -59,7 +59,7 @@ var linterConfig = {
         // always use default syntax because we don't expose it in config UI
         config.syntax = this.defaults.stylelint.syntax;
       }
-      return config;
+      return Object.assign({}, this.defaults[linter] || {}, config);
     } else {
       return deepCopy(this.defaults[linter] || {});
     }
diff --git a/vendor-overwrites/csslint/csslint.js b/vendor-overwrites/csslint/csslint.js
index fb0a3b8e..7696ea96 100644
--- a/vendor-overwrites/csslint/csslint.js
+++ b/vendor-overwrites/csslint/csslint.js
@@ -857,6 +857,19 @@ CSSLint.addRule({
   },
 });
 
+CSSLint.addRule({
+  id:       'warnings',
+  name:     'Parsing warnings',
+  desc:     'This rule looks for parser warnings.',
+  browsers: 'All',
+
+  init(parser, reporter) {
+    parser.addListener('warning', ({message, line, col}) => {
+      reporter.report(message, line, col, this);
+    });
+  },
+});
+
 CSSLint.addRule({
   id:       'fallback-colors',
   name:     'Require fallback colors',
diff --git a/vendor-overwrites/csslint/parserlib.js b/vendor-overwrites/csslint/parserlib.js
index b1c75383..ee0ea4fa 100644
--- a/vendor-overwrites/csslint/parserlib.js
+++ b/vendor-overwrites/csslint/parserlib.js
@@ -4627,7 +4627,7 @@ self.parserlib = (() => {
           parts[0].modifiers.length + (parts[0].elementName ? 1 : 0) > 1 ||
           /^:not\b/i.test(parts[0])) {
         this.fire({
-          type: 'error',
+          type: 'warning',
           message: `Simple selector expected, but found '${arg.join(', ')}'`,
         }, arg[0]);
       }