delaying mirroring to when omnitool is ready

hf_server.js

@@ -3,7 +3,7 @@
  * All rights reserved.
  */
 //@ts-check
-const VERSION = '0.6.0.hf.014.c';
+const VERSION = '0.6.0.hf.014.d';
 
 const express = require('express');
 const http = require('http');
@@ -159,6 +159,10 @@ function setOmnitoolRunning(set_running)
                 console.log('Omnitool server is RUNNING! ');
                 global.OMNITOOL_RUNNING = true;
             }, DELAY_OMNITOOL_SET_TO_RUNNING); // Delay by 2 second
+
+            // start mirroring to /data when the server is running
+            startMirrorToDataDir();
+
         }
 
     }
@@ -231,6 +235,7 @@ async function handleGetBurstIframe(req, res)
 
     const reply = { burst_iframe: true };
     res.end(JSON.stringify(reply));
+
     return;
 }
 
@@ -447,6 +452,40 @@ function omnitoolProxyMiddleware(req, res, next)
     }
 }
 
+function startMirrorToDataDir()
+{
+    if (!fs.existsSync(targetDir)) return;
+
+    const watcher = chokidar.watch(sourceDir, {
+        ignored: /[\/\\]\./,
+        persistent: true
+    });
+
+    watcher
+        .on('add', function(path) {
+            const targetFile = path.replace(sourceDir, targetDir);
+            fs.copyFile(path, targetFile, (err) => {
+            if (err) throw err;
+            console.log('File', path, 'has been added and copied to', targetFile);
+            });
+        })
+        .on('change', function(path) {
+            const targetFile = path.replace(sourceDir, targetDir);
+            fs.copyFile(path, targetFile, (err) => {
+            if (err) throw err;
+            console.log('File', path, 'has been changed and copied to', targetFile);
+            });
+        })
+        .on('unlink', function(path) {
+            const targetFile = path.replace(sourceDir, targetDir);
+            fs.unlink(targetFile, (err) => {
+            if (err) throw err;
+            console.log('File', path, 'has been removed');
+            });
+        });
+        
+    return watcher;
+}
 
 async function main(app)
 {