Groovy/Commons VFS/SFTP

Sftp.groovy

@Grab('commons-vfs:commons-vfs:1.0') 
@Grab('com.jcraft:jsch:0.1.42')
import com.jcraft.jsch.*
import org.apache.commons.vfs.*
import org.apache.commons.vfs.provider.sftp.*

def url = 'sftp://username@host[:port]/path'
def keyFilePath = 'path/to/keyfile'
def passphrase = 'passphrase'

def fileSystemManager = VFS.manager
if (!fileSystemManager.hasProvider('sftp')) {
    fileSystemManager.addProvider('sftp', new SftpFileProvider())
}

def opts = new FileSystemOptions()
SftpFileSystemConfigBuilder.getInstance().with {
    it.setStrictHostKeyChecking(opts, "no");
    it.setIdentities(opts, [new File(keyFilePath)] as File[])
    it.setUserInfo(opts, [getPassphrase:{passphrase}, promptPassphrase:{true}] as UserInfo)
}

fileSystemManager.resolveFile(url, opts).children.each {
    println it.name
}

Have a look at https://github.com/ysb33r/groovy-vfs, it makes such things with groovy a lot simpler :)

madmas , not true, groovy-vfs has 30 issues , none resolved , not very active, examples fail , typical example of developer wanting to much , achieving less .... here i have a example that works