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# vi: ts=4 expandtab
#
# Copyright (C) 2009-2010 Canonical Ltd.
#
# Author: Scott Moser <scott.moser@canonical.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 3, as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import cloudinit.util as util
import subprocess
import traceback
def handle(name,cfg,cloud,log,args):
if len(args) != 0:
value = args[0]
else:
value = util.get_cfg_option_str(cfg,"byobu_by_default","")
if not value: return
if value == "user" or value == "system":
value = "enable-%s" % value
valid = ( "enable-user", "enable-system", "enable",
"disable-user", "disable-system", "disable" )
if not value in valid:
log.warn("Unknown value %s for byobu_by_default" % value)
mod_user = value.endswith("-user")
mod_sys = value.endswith("-system")
if value.startswith("enable"):
bl_inst = "install"
dc_val = "byobu byobu/launch-by-default boolean true"
mod_sys = True
else:
if value == "disable":
mod_user = True
mod_sys = True
bl_inst = "uninstall"
dc_val = "byobu byobu/launch-by-default boolean false"
shcmd = ""
if mod_user:
user = util.get_cfg_option_str(cfg,"user","ubuntu")
shcmd += " sudo -Hu \"%s\" byobu-launcher-%s" % (user, bl_inst)
shcmd += " || X=$(($X+1)); "
if mod_sys:
shcmd += "echo \"%s\" | debconf-set-selections" % dc_val
shcmd += " && dpkg-reconfigure byobu --frontend=noninteractive"
shcmd += " || X=$(($X+1)); "
cmd = [ "/bin/sh", "-c", "%s %s %s" % ("X=0;", shcmd, "exit $X" ) ]
log.debug("setting byobu to %s" % value)
try:
subprocess.check_call(cmd)
except subprocess.CalledProcessError as e:
log.debug(traceback.format_exc(e))
raise Exception("Cmd returned %s: %s" % ( e.returncode, cmd))
except OSError as e:
log.debug(traceback.format_exc(e))
raise Exception("Cmd failed to execute: %s" % ( cmd ))
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