possibility to upload file using scp with minimum arguments

Author: IgorMelnykSI

src/main/java/net/schmizz/sshj/xfer/scp/SCPUploadClient.java

@@ -44,14 +44,14 @@ public synchronized int copy(LocalSourceFile sourceFile, String remotePath)
     }
 
     public synchronized int copy (LocalSourceFile sourceFile, String remotePath, ScpCommandLine.EscapeMode escapeMode) throws IOException {
-        return copy(sourceFile, remotePath, escapeMode, true);
+        return copy(sourceFile, remotePath, escapeMode, true, true);
     }
 
-    public synchronized int copy(LocalSourceFile sourceFile, String remotePath, ScpCommandLine.EscapeMode escapeMode, boolean preserveTimes)
-        throws IOException {
+    public synchronized int copy(LocalSourceFile sourceFile, String remotePath, ScpCommandLine.EscapeMode escapeMode, boolean preserveTimes, boolean defaultArgs)
+            throws IOException {
         engine.cleanSlate();
         try {
-            startCopy(sourceFile, remotePath, escapeMode, preserveTimes);
+            startCopy(sourceFile, remotePath, escapeMode, preserveTimes, defaultArgs);
         } finally {
             engine.exit();
         }
@@ -62,11 +62,9 @@ public void setUploadFilter(LocalFileFilter uploadFilter) {
         this.uploadFilter = uploadFilter;
     }
 
-    private void startCopy(LocalSourceFile sourceFile, String targetPath, ScpCommandLine.EscapeMode escapeMode, boolean preserveTimes)
-        throws IOException {
-        ScpCommandLine commandLine = ScpCommandLine.with(ScpCommandLine.Arg.SINK)
-            .and(ScpCommandLine.Arg.RECURSIVE)
-            .and(ScpCommandLine.Arg.LIMIT, String.valueOf(bandwidthLimit), (bandwidthLimit > 0));
+    private void startCopy(LocalSourceFile sourceFile, String targetPath, ScpCommandLine.EscapeMode escapeMode, boolean preserveTimes, boolean defaultArgs)
+            throws IOException {
+        ScpCommandLine commandLine = initialScpArguments(defaultArgs);
         if (preserveTimes) {
             commandLine.and(ScpCommandLine.Arg.PRESERVE_TIMES, sourceFile.providesAtimeMtime());
         }
@@ -76,6 +74,13 @@ private void startCopy(LocalSourceFile sourceFile, String targetPath, ScpCommand
         process(engine.getTransferListener(), sourceFile, preserveTimes);
     }
 
+    protected ScpCommandLine initialScpArguments(boolean defaultArgs) {
+        if (!defaultArgs) return ScpCommandLine.with(ScpCommandLine.Arg.SINK);
+        return ScpCommandLine.with(ScpCommandLine.Arg.SINK)
+                .and(ScpCommandLine.Arg.RECURSIVE)
+                .and(ScpCommandLine.Arg.LIMIT, String.valueOf(bandwidthLimit), (bandwidthLimit > 0));
+    }
+
     private void process(TransferListener listener, LocalSourceFile f, boolean preserveTimes)
         throws IOException {
         if (f.isDirectory()) {

src/test/java/net/schmizz/sshj/xfer/scp/SCPFileTransferTest.java

@@ -18,6 +18,7 @@
 import com.hierynomus.sshj.test.SshServerExtension;
 import com.hierynomus.sshj.test.util.FileUtil;
 import net.schmizz.sshj.SSHClient;
+import net.schmizz.sshj.xfer.FileSystemFile;
 import org.hamcrest.CoreMatchers;
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeEach;
@@ -87,6 +88,19 @@ public void shouldSCPUploadFileWithBandwidthLimit() throws IOException {
         assertTrue(Files.exists(targetFile));
     }
 
+    @Test
+    public void shouldSCPUploadFileWithoutArgs() throws IOException {
+        // scp without any option
+        SCPFileTransfer scpFileTransfer = sshClient.newSCPFileTransfer();
+        assertFalse(Files.exists(targetFile));
+        scpFileTransfer.newSCPUploadClient().copy(
+                new FileSystemFile(sourceFile.toAbsolutePath().toString()) ,
+                targetDir.toAbsolutePath().toString(),
+                ScpCommandLine.EscapeMode.SingleQuote,
+                false, false);
+        assertTrue(Files.exists(targetFile));
+    }
+
     @Test
     public void shouldSCPDownloadFile() throws IOException {
         SCPFileTransfer scpFileTransfer = sshClient.newSCPFileTransfer();