On Thu, 2010-05-06 at 10:55 +0800, Jason Wang wrote:
> Michael Goldish wrote:
> > On 04/26/2010 01:03 PM, Jason Wang wrote:
> >
> >> Sometimes we need to send an assist string to a session in order to
> >> get the prompt especially when re-connecting to an already logged
> >> serial session. This patch send the assist string before doing the
> >> pattern matching of remote_login.
> >>
> >
> > Can you give an example of a prompt assist string, and a typical usage
> > example? What guests require prompt assist strings?
> >
> >
> It was just used by serial console, consider when the first test case
> have already connected to the serial console, so the second test must
> send something in order to get the prompt string. But it may be better
> to log out during when the session is closed.
This has a upside of making things cleaner, I'd consider that.
> >> Signed-off-by: Jason Wang <jasow...@redhat.com>
> >> ---
> >> client/tests/kvm/kvm_utils.py | 9 +++++++--
> >> 1 files changed, 7 insertions(+), 2 deletions(-)
> >>
> >> diff --git a/client/tests/kvm/kvm_utils.py b/client/tests/kvm/kvm_utils.py
> >> index 25f3c8c..9adbaee 100644
> >> --- a/client/tests/kvm/kvm_utils.py
> >> +++ b/client/tests/kvm/kvm_utils.py
> >> @@ -451,7 +451,8 @@ def check_kvm_source_dir(source_dir):
> >> # The following are functions used for SSH, SCP and Telnet communication
> >> with
> >> # guests.
> >>
> >> -def remote_login(command, password, prompt, linesep="\n", timeout=10):
> >> +def remote_login(command, password, prompt, linesep="\n", timeout=10,
> >> + prompt_assist = None):
> >>
> > ^ ^
> > These spaces do not conform with PEP 8.
> >
> Would change them.
> >
> >> """
> >> Log into a remote host (guest) using SSH or Telnet. Run the given
> >> command
> >> using kvm_spawn and provide answers to the questions asked. If timeout
> >> @@ -468,7 +469,8 @@ def remote_login(command, password, prompt,
> >> linesep="\n", timeout=10):
> >> @param timeout: The maximal time duration (in seconds) to wait for
> >> each
> >> step of the login procedure (i.e. the "Are you sure" prompt,
> >> the
> >> password prompt, the shell prompt, etc)
> >> -
> >> + @prarm prompt_assist: An assistant string sent before the pattern
> >>
> >
> > Typo ^
> >
> >
> >> + matching in order to get the prompt for some kinds of
> >> shell_client.
> >> @return Return the kvm_spawn object on success and None on failure.
> >> """
> >> sub = kvm_subprocess.kvm_shell_session(command,
> >> @@ -479,6 +481,9 @@ def remote_login(command, password, prompt,
> >> linesep="\n", timeout=10):
> >>
> >> logging.debug("Trying to login with command '%s'" % command)
> >>
> >> + if prompt_assist is not None:
> >> + sub.sendline(prompt_assist)
> >> +
> >> while True:
> >> (match, text) = sub.read_until_last_line_matches(
> >> [r"[Aa]re you sure", r"[Pp]assword:\s*$",
> >> r"^\s*[Ll]ogin:\s*$",
> >>
> >> --
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> >>
> >
> >
>
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