Support Prettier v3

Author: bertdeblock

README.md

@@ -20,7 +20,7 @@ error: Replace `New·Addons</h1>` with <h1>⏎New Addons⏎</h1>` (prettier/pret
 
 - [Node.js](https://nodejs.org/) `^16.0.0 || ^18.0.0 || >=20.0.0`
 - [ember-template-lint](https://github.com/ember-template-lint/ember-template-lint/) `>=4.0.0`
-- [prettier](https://prettier.io/) `>=1.18.1`
+- [prettier](https://prettier.io/) `>=3.0.0`
 
 Note: ember-template-lint-plugin-prettier@3 is compatible with older versions of
 ember-template-lint, in particular ember-template-lint@3.

lib/rules/prettier.js

@@ -26,10 +26,10 @@ export default class Prettier extends Rule {
 
     if (!prettier) {
       // Prettier is expensive to load, so only load it if needed.
-      prettier = require("prettier");
+      prettier = require("@prettier/sync");
     }
 
-    const prettierRcOptions = prettier.resolveConfig.sync(filepath, {
+    const prettierRcOptions = prettier.resolveConfig(filepath, {
       editorconfig: true,
     });
 
@@ -55,11 +55,11 @@ export default class Prettier extends Rule {
           const source = this.sourceForNode(node);
           const prettierOptions = this.getPrettierOptions();
 
-          const prettierFileInfo = prettier.getFileInfo.sync(
+          const prettierFileInfo = prettier.getFileInfo(
             prettierOptions.filepath,
             {
               ignorePath: ".prettierignore",
-            }
+            },
           );
 
           // Skip if file is ignored using a .prettierignore file
@@ -118,23 +118,23 @@ export default class Prettier extends Rule {
               let { line, column } = getLocFromIndex(offset, this.source);
               let { line: endLine, column: endColumn } = getLocFromIndex(
                 offset + deleteText.length,
-                this.source
+                this.source,
               );
 
               switch (difference.operation) {
                 case INSERT:
                   message = `Insert \`${showInvisibles(
-                    difference.insertText
+                    difference.insertText,
                   )}\``;
                   break;
                 case DELETE:
                   message = `Delete \`${showInvisibles(
-                    difference.deleteText
+                    difference.deleteText,
                   )}\``;
                   break;
                 case REPLACE:
                   message = `Replace \`${showInvisibles(
-                    difference.deleteText
+                    difference.deleteText,
                   )}\` with \`${showInvisibles(difference.insertText)}\``;
                   break;
               }

package.json

@@ -30,6 +30,7 @@
     "test": "mocha --recursive"
   },
   "dependencies": {
+    "@prettier/sync": "^0.2.1",
     "prettier-linter-helpers": "^1.0.0"
   },
   "devDependencies": {
@@ -38,17 +39,17 @@
     "eslint": "^8.2.0",
     "eslint-config-prettier": "^8.3.0",
     "eslint-plugin-node": "^11.0.0",
-    "eslint-plugin-prettier": "^4.0.0",
+    "eslint-plugin-prettier": "^5.0.0",
     "lerna-changelog": "^2.1.0",
     "markdownlint-cli": "^0.33.0",
     "mocha": "^10.1.0",
     "npm-run-all": "^4.1.5",
-    "prettier": "^2.3.1",
+    "prettier": "^3.0.0",
     "release-it": "^15.5.0"
   },
   "peerDependencies": {
     "ember-template-lint": ">= 4.0.0",
-    "prettier": ">= 1.18.1"
+    "prettier": ">= 3.0.0"
   },
   "engines": {
     "node": "^16.0.0 || ^18.0.0 || >=20.0.0"
@@ -72,7 +73,7 @@
     }
   },
   "volta": {
-    "node": "16.13.1",
+    "node": "16.20.1",
     "yarn": "1.22.17"
   }
 }