fix: patch for older versions of Tailwind CSS

Author: francoismassart

lib/rules/enforces-shorthand.js

@@ -244,6 +244,9 @@ module.exports = {
           // Test if the body of the class matches, eg. 'h-' inside 'h-10'
           if (mode === 'value') {
             const bodyMatch = inputSet.some((inputClassPattern) => inputClassPattern === remainingClass.body);
+            if (mergedConfig.theme.size === undefined) {
+              return false;
+            }
             // w-screen + h-screen ≠ size-screen (Issue #307)
             const sizeKeys = Object.keys(mergedConfig.theme.size);
             const isSize = ['w-', 'h-'].includes(remainingClass.body);

lib/util/customConfig.js

@@ -3,7 +3,13 @@
 const fs = require('fs');
 const path = require('path');
 const resolveConfig = require('tailwindcss/resolveConfig');
-const twLoadConfig = require('tailwindcss/lib/lib/load-config');
+let twLoadConfig;
+
+try {
+  twLoadConfig = require('tailwindcss/lib/lib/load-config');
+} catch (err) {
+  twLoadConfig = null;
+}
 
 const CHECK_REFRESH_RATE = 1_000;
 let previousConfig = null;
@@ -18,7 +24,11 @@ let lastModifiedDate = null;
  */
 function requireUncached(module) {
   delete require.cache[require.resolve(module)];
-  return twLoadConfig.loadConfig(module);
+  if (twLoadConfig === null) {
+    return require(module);
+  } else {
+    return twLoadConfig.loadConfig(module);
+  }
 }
 
 function loadConfig(config) {

lib/util/settings.js

@@ -1,5 +1,12 @@
 'use strict';
-const { resolveDefaultConfigPath } = require('tailwindcss/lib/util/resolveConfigPath')
+let resolveDefaultConfigPathAlias;
+
+try {
+  const { resolveDefaultConfigPath } = require('tailwindcss/lib/util/resolveConfigPath');
+  resolveDefaultConfigPathAlias = resolveDefaultConfigPath;
+} catch (err) {
+  resolveDefaultConfigPathAlias = null;
+}
 
 function getOption(context, name) {
   // Options (defined at rule level)
@@ -20,7 +27,11 @@ function getOption(context, name) {
     case 'classRegex':
       return '^class(Name)?$';
     case 'config':
-      return resolveDefaultConfigPath();
+      if (resolveDefaultConfigPathAlias === null) {
+        return 'tailwind.config.js';
+      } else {
+        return resolveDefaultConfigPathAlias();
+      }
     case 'cssFiles':
       return ['**/*.css', '!**/node_modules', '!**/.*', '!**/dist', '!**/build'];
     case 'cssFilesRefreshRate':