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# Copyright (C) 2008-2012 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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"""Ping plugin for bzr."""
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from __future__ import absolute_import
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from bzrlib.commands import Command
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from bzrlib.lazy_import import lazy_import
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lazy_import(globals(), """
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from bzrlib import errors
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from bzrlib.smart.client import _SmartClient
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from bzrlib.transport import get_transport
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class cmd_ping(Command):
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"""Pings a Bazaar smart server.
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This command sends a 'hello' request to the given location using the bzr
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smart protocol, and reports the response.
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takes_args = ['location']
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def run(self, location):
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transport = get_transport(location)
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medium = transport.get_smart_medium()
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except errors.NoSmartMedium, e:
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raise errors.BzrCommandError(str(e))
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client = _SmartClient(medium)
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# Use call_expecting_body (even though we don't expect a body) so that
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# we can see the response headers (if any) via the handler object.
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response, handler = client.call_expecting_body('hello')
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handler.cancel_read_body()
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self.outf.write('Response: %r\n' % (response,))
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if getattr(handler, 'headers', None) is not None:
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self.outf.write('Headers: %r\n' % (handler.headers,))
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bzrlib/smart/ping.py
