Add support for Python 3

[yardstick.git] / yardstick / ssh.py

diff --git a/yardstick/ssh.py b/yardstick/ssh.py
index 2ba6de9..1cad8ee 100644 (file)
--- a/yardstick/ssh.py
+++ b/yardstick/ssh.py
@@ -25,7 +25,7 @@ Execute command and get output:
     status, stdout, stderr = ssh.execute("ps ax")
     if status:
         raise Exception("Command failed with non-zero status.")
-    print stdout.splitlines()
+    print(stdout.splitlines())
 
 Execute command with huge output:
 
@@ -62,13 +62,16 @@ Eventlet:
     sshclient = eventlet.import_patched("yardstick.ssh")
 
 """
+from __future__ import absolute_import
 import os
 import select
 import socket
 import time
+import re
 
 import logging
 import paramiko
+from oslo_utils import encodeutils
 from scp import SCPClient
 import six
 
@@ -198,7 +201,8 @@ class SSH(object):
         session.exec_command(cmd)
         start_time = time.time()
 
-        data_to_send = ""
+        # encode on transmit, decode on receive
+        data_to_send = encodeutils.safe_encode("")
         stderr_data = None
 
         # If we have data to be sent to stdin then `select' should also
@@ -213,14 +217,15 @@ class SSH(object):
             r, w, e = select.select([session], writes, [session], 1)
 
             if session.recv_ready():
-                data = session.recv(4096)
+                data = encodeutils.safe_decode(session.recv(4096), 'utf-8')
                 self.log.debug("stdout: %r", data)
                 if stdout is not None:
                     stdout.write(data)
                 continue
 
             if session.recv_stderr_ready():
-                stderr_data = session.recv_stderr(4096)
+                stderr_data = encodeutils.safe_decode(
+                    session.recv_stderr(4096), 'utf-8')
                 self.log.debug("stderr: %r", stderr_data)
                 if stderr is not None:
                     stderr.write(stderr_data)
@@ -229,7 +234,8 @@ class SSH(object):
             if session.send_ready():
                 if stdin is not None and not stdin.closed:
                     if not data_to_send:
-                        data_to_send = stdin.read(4096)
+                        data_to_send = encodeutils.safe_encode(
+                            stdin.read(4096), incoming='utf-8')
                         if not data_to_send:
                             # we may need to keep stdin open
                             if not keep_stdin_open:
@@ -252,7 +258,7 @@ class SSH(object):
                 raise SSHError("Socket error.")
 
         exit_status = session.recv_exit_status()
-        if 0 != exit_status and raise_on_error:
+        if exit_status != 0 and raise_on_error:
             fmt = "Command '%(cmd)s' failed with exit_status %(status)d."
             details = fmt % {"cmd": cmd, "status": exit_status}
             if stderr_data:
@@ -311,17 +317,21 @@ class SSH(object):
                 mode = 0o777 & os.stat(localpath).st_mode
             sftp.chmod(remotepath, mode)
 
+    TILDE_EXPANSIONS_RE = re.compile("(^~[^/]*/)?(.*)")
+
     def _put_file_shell(self, localpath, remotepath, mode=None):
         # quote to stop wordpslit
-        cmd = ['cat > "%s"' % remotepath]
+        tilde, remotepath = self.TILDE_EXPANSIONS_RE.match(remotepath).groups()
+        if not tilde:
+            tilde = ''
+        cmd = ['cat > %s"%s"' % (tilde, remotepath)]
         if mode is not None:
             # use -- so no options
-            cmd.append('chmod -- 0%o "%s"' % (mode, remotepath))
+            cmd.append('chmod -- 0%o %s"%s"' % (mode, tilde, remotepath))
 
         with open(localpath, "rb") as localfile:
             # only chmod on successful cat
-            cmd = "&& ".join(cmd)
-            self.run(cmd, stdin=localfile)
+            self.run("&& ".join(cmd), stdin=localfile)
 
     def put_file(self, localpath, remotepath, mode=None):
         """Copy specified local file to the server.
@@ -330,7 +340,6 @@ class SSH(object):
         :param remotepath:  Remote filename.
         :param mode:        Permissions to set after upload
         """
-        import socket
         try:
             self._put_file_sftp(localpath, remotepath, mode=mode)
         except (paramiko.SSHException, socket.error):