fix: simplify #326

lib/compile/index.js

@@ -5,13 +5,12 @@ var resolve = require('./resolve')
   , stableStringify = require('json-stable-stringify')
   , async = require('../async');
 
-var beautify
-  , didWeTryToLoadBeautify = false;
+var beautify;
 
-function loadBeautifyIfNeeded(){
-  if (!didWeTryToLoadBeautify) {
-    try { beautify = require('' + 'js-beautify').js_beautify; } catch(e) {/*empty*/}
-    didWeTryToLoadBeautify = true;
+function loadBeautify(){
+  if (beautify === undefined) {
+    try { beautify = require('' + 'js-beautify').js_beautify; }
+    catch(e) { beautify = false; }
   }
 }
 
@@ -123,7 +122,7 @@ function compile(schema, root, localRefs, baseId) {
                    + sourceCode + 'return validate;';
 
     if (opts.beautify) {
-      loadBeautifyIfNeeded();
+      loadBeautify();
       /* istanbul ignore else */
       if (beautify) sourceCode = beautify(sourceCode, opts.beautify);
       else console.error('"npm install js-beautify" to use beautify option');