FIX: Use circular-json to handle circular references (fix #5)

jaredwray · Jul 25, 2016 · cd7aeed · cd7aeed
1 parent 3a613fd
commit cd7aeed
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Showing 2 changed files with 7 additions and 3 deletions.
diff --git a/cache.js b/cache.js
@@ -1,8 +1,10 @@
 var path = require( 'path' );
 var fs = require( 'graceful-fs' );
-var readJSON = require( 'read-json-sync' );
 var write = require( 'write' );
 var del = require( 'del' ).sync;
+var circularJson = require( 'circular-json' );
+
+var fileCache = { };
 
 var cache = {
   /**
@@ -22,7 +24,8 @@ var cache = {
     me._pathToFile = cacheDir ? path.resolve( cacheDir, docId ) : path.resolve( __dirname, './.cache/', docId );
 
     if ( fs.existsSync( me._pathToFile ) ) {
-      me._persisted = readJSON( me._pathToFile );
+      me._persisted = fileCache[ me._pathToFile ] || circularJson.parse( fs.readFileSync( me._pathToFile ).toString() );
+      fileCache[ me._pathToFile ] = me._persisted;
     }
   },
 
@@ -106,7 +109,7 @@ var cache = {
     var me = this;
 
     me._prune();
-    write.sync( me._pathToFile, JSON.stringify( me._persisted ) );
+    write.sync( me._pathToFile, circularJson.stringify( me._persisted ) );
   },
 
   /**

diff --git a/package.json b/package.json
@@ -78,6 +78,7 @@
     "watch-run": "^1.2.2"
   },
   "dependencies": {
+    "circular-json": "^0.3.0",
     "del": "^2.0.2",
     "graceful-fs": "^4.1.2",
     "read-json-sync": "^1.1.0",