diff --git a/ssh_copy_directory.py b/ssh_copy_directory.py
new file mode 100644
index 0000000..dca0843
--- /dev/null
+++ b/ssh_copy_directory.py
@@ -0,0 +1,68 @@
+import os.path
+
+
+def normalize_dirpath(dirpath):
+    while dirpath.endswith("/"):
+        dirpath = dirpath[:-1]
+    return dirpath
+
+
+def ssh_mkdir(sftp, remotepath, mode=0777, intermediate=False):
+    remotepath = normalize_dirpath(remotepath)
+    if intermediate:
+        try:
+            sftp.mkdir(remotepath, mode=mode)
+        except IOError:
+            ssh_mkdir(sftp, remotepath.rsplit("/", 1)[0], mode=mode,
+                      intermediate=True)
+            return sftp.mkdir(remotepath, mode=mode)
+    else:
+        sftp.mkdir(remotepath, mode=mode)
+
+
+def ssh_copy_file(sftp, localfile, remfile, preserve_perm=True):
+    sftp.put(localfile, remfile)
+    if preserve_perm:
+        sftp.chmod(remfile, os.stat(localfile).st_mode & 0777)
+
+
+def put_dir_recursively(sftp, localpath, remotepath, preserve_perm=True):
+    "upload local directory to remote recursively"
+
+    assert remotepath.startswith("/"), "%s must be absolute path" % remotepath
+
+    # normalize
+    localpath = normalize_dirpath(localpath)
+    remotepath = normalize_dirpath(remotepath)
+
+    try:
+        sftp.chdir(remotepath)
+        localsuffix = localpath.rsplit("/", 1)[1]
+        remotesuffix = remotepath.rsplit("/", 1)[1]
+        if localsuffix != remotesuffix:
+            remotepath = os.path.join(remotepath, localsuffix)
+    except IOError:
+        pass
+
+    for root, dirs, fls in os.walk(localpath):
+        prefix = os.path.commonprefix([localpath, root])
+        suffix = root.split(prefix, 1)[1]
+        if suffix.startswith("/"):
+            suffix = suffix[1:]
+
+        remroot = os.path.join(remotepath, suffix)
+
+        try:
+            sftp.chdir(remroot)
+        except IOError:
+            if preserve_perm:
+                mode = os.stat(root).st_mode & 0777
+            else:
+                mode = 0777
+            ssh_mkdir(sftp, remroot, mode=mode, intermediate=True)
+            sftp.chdir(remroot)
+
+        for f in fls:
+            remfile = os.path.join(remroot, f)
+            localfile = os.path.join(root, f)
+            ssh_copy_file(sftp, localfile, remfile, preserve_perm)