Fix templates with Prettier

Author: dcyriller

lib/rules/prettier.js

@@ -11,7 +11,7 @@ const { INSERT, DELETE, REPLACE } = generateDifferences;
 
 let prettier;
 
-const Rule = require("ember-template-lint").Rule;
+const { Rule, recast } = require("ember-template-lint");
 
 function isFile(loc) {
   return loc.start && loc.start.line === 1 && loc.start.column === 0;
@@ -99,6 +99,11 @@ module.exports = class Prettier extends Rule {
           }
 
           if (source !== prettierSource) {
+            if (this.mode === "fix") {
+              node.body = recast.parse(prettierSource).body;
+              return;
+            }
+
             const differences = generateDifferences(source, prettierSource);
 
             differences.forEach(difference => {
@@ -126,7 +131,7 @@ module.exports = class Prettier extends Rule {
                   break;
               }
 
-              this.log({ message, line, column, source });
+              this.log({ message, line, column, source, isFixable: true });
             });
           }
         }