[WIP] Update plugin to support ESLint v10

lib/configs/flat/recommended.js

@@ -17,7 +17,7 @@ export default {
   },
   plugins: {
     prettier: prettierPlugin,
-    'eslint-comments': eslintComments,
+    'eslint-comments': fixupPluginRules(eslintComments),
     import: importPlugin,
     'i18n-text': fixupPluginRules(i18nTextPlugin),
     'no-only-tests': noOnlyTestsPlugin,

lib/formatters/stylish-fixes.js

@@ -2,9 +2,28 @@ import childProcess from 'node:child_process'
 import fs from 'node:fs'
 import os from 'node:os'
 import path from 'node:path'
-import SourceCodeFixer from 'eslint/lib/linter/source-code-fixer.js'
 import getRuleURI from 'eslint-rule-documentation'
 
+// Simple fix applier to replace the internal ESLint SourceCodeFixer
+// which is no longer exported in ESLint v10
+function applyFixes(sourceText, messages) {
+  const fixes = messages
+    .filter(msg => msg.fix)
+    .map(msg => msg.fix)
+    .sort((a, b) => a.range[0] - b.range[0])
+
+  let output = sourceText
+  let offset = 0
+
+  for (const fix of fixes) {
+    const [start, end] = fix.range
+    output = output.slice(0, start + offset) + fix.text + output.slice(end + offset)
+    offset += fix.text.length - (end - start)
+  }
+
+  return {output, fixed: fixes.length > 0}
+}
+
 export default function stylishFixes(results) {
   let output = '\n'
   let errors = 0
@@ -37,7 +56,7 @@ export default function stylishFixes(results) {
     }
 
     if (messages.some(msg => msg.fix)) {
-      const fixResult = SourceCodeFixer.applyFixes(result.source, messages)
+      const fixResult = applyFixes(result.source, messages)
       output += `\n\n$ eslint --fix ${relativePath}\n`
       output += diff(result.source, fixResult.output)
     }