sshcontrol.py: Add methods to copy dirs and delete files

index 1658744..15618cc 100644
@@ -151,3 +151,86 @@ class SSHControl(object):
     def copy_from(self, remotepath, localpath):
         command = self.scp + ['%s@%s:%s' % (self.user, self.ip, remotepath), localpath]
         return self._internal_run(command, ignore_status=False)
+
+    def copy_dir_to(self, localpath, remotepath):
+        """
+        Copy recursively localpath directory to remotepath in target.
+        """
+
+        for root, dirs, files in os.walk(localpath):
+            # Create directories in the target as needed
+            for d in dirs:
+                tmp_dir = os.path.join(root, d).replace(localpath, "")
+                new_dir = os.path.join(remotepath, tmp_dir.lstrip("/"))
+                cmd = "mkdir -p %s" % new_dir
+                self.run(cmd)
+
+            # Copy files into the target
+            for f in files:
+                tmp_file = os.path.join(root, f).replace(localpath, "")
+                dst_file = os.path.join(remotepath, tmp_file.lstrip("/"))
+                src_file = os.path.join(root, f)
+                self.copy_to(src_file, dst_file)
+
+
+    def delete_files(self, remotepath, files):
+        """
+        Delete files in target's remote path.
+        """
+
+        cmd = "rm"
+        if not isinstance(files, list):
+            files = [files]
+
+        for f in files:
+            cmd = "%s %s" % (cmd, os.path.join(remotepath, f))
+
+        self.run(cmd)
+
+
+    def delete_dir(self, remotepath):
+        """
+        Delete remotepath directory in target.
+        """
+
+        cmd = "rmdir %s" % remotepath
+        self.run(cmd)
+
+
+    def delete_dir_structure(self, localpath, remotepath):
+        """
+        Delete recursively localpath structure directory in target's remotepath.
+
+        This function is very usefult to delete a package that is installed in
+        the DUT and the host running the test has such package extracted in tmp
+        directory.
+
+        Example:
+            pwd: /home/user/tmp
+            tree:   .
+                    └── work
+                        ├── dir1
+                        │   └── file1
+                        └── dir2
+
+            localpath = "/home/user/tmp" and remotepath = "/home/user"
+
+            With the above variables this function will try to delete the
+            directory in the DUT in this order:
+                /home/user/work/dir1/file1
+                /home/user/work/dir1        (if dir is empty)
+                /home/user/work/dir2        (if dir is empty)
+                /home/user/work             (if dir is empty)
+        """
+
+        for root, dirs, files in os.walk(localpath, topdown=False):
+            # Delete files first
+            tmpdir = os.path.join(root).replace(localpath, "")
+            remotedir = os.path.join(remotepath, tmpdir.lstrip("/"))
+            self.delete_files(remotedir, files)
+
+            # Remove dirs if empty
+            for d in dirs:
+                tmpdir = os.path.join(root, d).replace(localpath, "")
+                remotedir = os.path.join(remotepath, tmpdir.lstrip("/"))
+                self.delete_dir(remotepath)