React Native

SCP Sync Tree Upload

See more SCP Examples

Synchronize local and remote directory trees by uploading newer or missing files to the remote server. React Native

import { Scp, Ssh } from '@chilkat/react-native'

async function chilkatExample() {
  // This example requires the Chilkat API to have been previously unlocked.
  // See Global Unlock Sample for sample code.

  const ssh = new Ssh();

  // Hostname may be an IP address or hostname:
  const hostname = 'www.some-ssh-server.com';
  const port = 22;

  // Connect to an SSH server:
  try {
    await ssh.connectAsync(hostname, port);
  } catch {
    console.log(ssh.lastErrorText);
    return;
  }

  // Wait a max of 5 seconds when reading responses..
  ssh.idleTimeoutMs = 5000;

  // Authenticate using login/password:
  try {
    await ssh.authenticatePwAsync('myLogin', 'myPassword');
  } catch {
    console.log(ssh.lastErrorText);
    return;
  }

  // Once the SSH object is connected and authenticated, we use it
  // in our SCP object.
  const scp = new Scp();

  try {
    scp.useSsh(ssh);
  } catch {
    console.log(scp.lastErrorText);
    return;
  }

  // The remoteRoot is relative to the HOME directory of the SSH user account.
  const remoteRoot = 'workspace/projectB';
  const localRoot = 'c:/aaworkarea/scp/workspace/projectB';

  // Upload synchronization modes:
  // mode=0: Upload all files
  // mode=1: Upload all files that do not exist on the FTP server.
  // mode=2: Upload newer or non-existant files.
  // mode=3: Upload only newer files.  If a file does not already exist on the FTP server, it is not uploaded.
  // mode=4: transfer missing files or files with size differences.
  // mode=5: same as mode 4, but also newer files.

  // Additional files and directores can be excluded by setting the SyncMustNotMatch property.
  // The SyncMustNotMatch patterns apply only to the final filename or directory part of a path.
  // If a directory matches, then it will not be traversed in a recursive traversal.
  // 
  scp.syncMustNotMatch = '*.o;*.obj;*.log; temp';

  // The SyncMustMatch property can be set to restrict the files uploaded to only those
  // matching at least one pattern in a set.
  scp.syncMustMatch = '*.cpp; *.h';

  // Do the recursive sync to upload newer or non-existant files:
  const bRecurse = true;
  const mode = 2;
  try {
    await scp.syncTreeUploadAsync(localRoot, remoteRoot, mode, bRecurse);
  } catch {
    console.log(scp.lastErrorText);
    return;
  }

  // The files actually uploaded can be examined in the SyncedFiles property.
  // It is a string property that contains the relative path, one per line, of each
  // file uploaded.
  console.log('Files uploaded: ');
  console.log(scp.syncedFiles);

  console.log('----');
  console.log('SCP sync upload success.');

  // Disconnect
  ssh.disconnect();
}