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test-scp.js

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+require('dotenv').config();
+const { Client } = require('ssh2');
+
+// Test SCP connection
+async function testSCPConnection() {
+  const config = {
+    host: process.env.SCP_HOST,
+    port: parseInt(process.env.SCP_PORT) || 22,
+    username: process.env.SCP_USERNAME,
+    privateKey: require('fs').readFileSync(require('path').resolve(process.env.SCP_KEY_PATH))
+  };
+
+  console.log('Testing SCP connection...');
+  console.log(`Host: ${config.host}`);
+  console.log(`Port: ${config.port}`);
+  console.log(`Username: ${config.username}`);
+
+  const conn = new Client();
+
+  return new Promise((resolve, reject) => {
+    conn.on('ready', () => {
+      console.log('✅ SSH connection successful!');
+      console.log('Now testing SCP download...');
+
+      conn.sftp((err, sftp) => {
+        if (err) {
+          console.error('❌ SFTP error:', err.message);
+          conn.end();
+          reject(err);
+          return;
+        }
+
+        const remotePath = process.env.SCP_REMOTE_PATH || '/sharemnt/ez.bak';
+        console.log(`Checking remote file: ${remotePath}`);
+
+        sftp.stat(remotePath, (err, stats) => {
+          if (err) {
+            console.error('❌ Cannot access remote file:', err.message);
+            conn.end();
+            reject(err);
+          } else {
+            console.log('✅ Remote file found!');
+            console.log(`File size: ${(stats.size / 1024 / 1024).toFixed(2)} MB`);
+            console.log(`Modified: ${stats.mtime}`);
+            conn.end();
+            resolve();
+          }
+        });
+      });
+    });
+
+    conn.on('error', (err) => {
+      console.error('❌ SSH connection failed:', err.message);
+      console.error('Error details:', err);
+      reject(err);
+    });
+
+    conn.connect(config);
+  });
+}
+
+// Run test
+testSCPConnection()
+  .then(() => {
+    console.log('\n🎉 SCP test completed successfully!');
+    console.log('You can now use: node backup.js');
+  })
+  .catch((err) => {
+    console.error('\n💥 SCP test failed!');
+    console.error('Please check your SSH configuration.');
+    process.exit(1);
+  });