is-file-changed moved to CloudCommander project

lib/server/is-file-changed.js

@@ -0,0 +1,75 @@
+/* Модуль проверяет поменялось ли содержимое файла по хэшу. */
+
+var fs      = require('fs'),
+    crypto  = require('crypto');
+
+/* object contains hashes of files*/
+var Hashes;
+
+/*
+ * Function reads hash table of files
+ * checks is file changed or not
+ * and return result.
+ * @pFileName - name of file
+ * @pFileData - data of file
+ * result: boolean
+ */
+exports.check = function(pFileName, pFileData, pOverWrite_b){
+        var lReadedHash;
+        
+        /* boolean hashes.json changed or not */
+        var lHashesChanged_b = false;
+        
+        if(!Hashes)
+            try {
+                console.log('trying  to read hashes.json');
+                Hashes = require(process.cwd() + '/hashes');
+                
+            }catch(pError) {
+                console.log('hashes.json not found... \n');
+                Hashes = {};
+            }
+        
+        for(var lFileName in Hashes)
+            /* if founded row with
+             * file name - save hash
+             */
+            if (lFileName === pFileName) {
+                lReadedHash = Hashes[pFileName];
+                break;
+        }
+        
+        /* create hash of file data */ 
+        var lFileHash = crypto.createHash('sha1');
+        lFileHash = crypto.createHash('sha1'); 
+        lFileHash.update(pFileData);
+        lFileHash = lFileHash.digest('hex');
+                
+        if(lReadedHash !== lFileHash){
+            Hashes[pFileName] = lFileHash;
+            lHashesChanged_b = true;
+        }
+                                
+        if(pOverWrite_b){                                    
+            /* if hashes file was changes - write it */
+            if(lHashesChanged_b)
+                fs.writeFile('./hashes.json',
+                    JSON.stringify(Hashes),
+                    fileWrited('./hashes.json'));
+            else console.log('no one file has been changed');
+        }
+        /* has file changed? */
+        return lHashesChanged_b;
+};
+
+/*
+ * Функция вызываеться после записи файла
+ * и выводит ошибку или сообщает,
+ * что файл успешно записан
+ */
+function fileWrited(pFileName){
+    "use strict";
+    return function(error){
+        console.log(error?error:('file '+pFileName+' writed...'));
+    };
+}

package.json

@@ -15,8 +15,7 @@
   "node": "0.6.17",
   "subdomain": "cloudcmd",
   "dependencies": {
-    "minify": "0.1.6",
-    "is-file-changed" : "0.1.0"
+    "minify": "0.1.6"
   },
   "devDependencies": {},
   "engines": {