Short-circuit before parsing (#224)

In attempting to troubleshoot
#219, I
realized that disabling the plugin using overrides and `importOrder: []`
does not prevent parsing errors. Moving this short-circuit check up
before we attempt to parse will not only solve that problem but also
improve performance a little by avoiding parsing files that we're just
going to short-circuit anyway.

Author: IanVS

src/preprocessors/preprocessor.ts

@@ -17,6 +17,11 @@ export function preprocessor(code: string, options: PrettierOptions): string {
         plugins,
     };
 
+    // short-circuit if importOrder is an empty array (can be used to disable plugin)
+    if (!remainingOptions.importOrder.length) {
+        return code;
+    }
+
     // Astro component scripts allow returning a response
     if (options.parentParser === 'astro') {
         parserOptions.allowReturnOutsideFunction = true;
@@ -53,11 +58,6 @@ export function preprocessor(code: string, options: PrettierOptions): string {
         return code;
     }
 
-    // short-circuit if importOrder is an empty array (can be used to disable plugin)
-    if (!remainingOptions.importOrder.length) {
-        return code;
-    }
-
     const nodesToOutput = getSortedNodes(
         allOriginalImportNodes,
         remainingOptions,