/usr/sbin/powernap-action is in powernap 2.21-0ubuntu1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 | #! /usr/bin/python
#
# powernap-action - enable or disable actions when running powernap
# Available actions at /usr/lib/powernap/actions.
# Enabled actions at /etc/powernap/actions.d.
#
# Copyright (C) 2010 Canonical Ltd.
#
# Authors: Andres Rodriguez <andreserl@ubuntu.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, version 3 of the License.
#
# 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 os, sys, commands
from optparse import OptionParser
global PKG
PKG = "powernap"
PM_ACTIONS_DIR = "/etc/pm/power.d"
# If not running as root, exit program and display message
if not os.geteuid()==0:
sys.exit("This utility may only be run by the root user.")
# Check if action exists.
def action_exists(action):
path = "%s/%s" % (PM_ACTIONS_DIR, action)
if os.path.exists(path):
return True
else:
return False
# Check if action is enabled.
def is_action_enabled(action):
path = "%s/%s" % (PM_ACTIONS_DIR, action)
if os.access(path, os.X_OK):
return True
else:
return False
def do_action_enable(action):
src = "%s/%s" % (PM_ACTIONS_DIR, action)
info("enabling action [%s]..." % action)
os.chmod(src, 0755)
def do_action_disable(action):
path = "%s/%s" % (PM_ACTIONS_DIR, action)
info("disabling action [%s]..." % action)
#TODO: Not only remove, but undo changes if possible!!
os.chmod(path, 0644)
def list_available_actions():
#TODO: Display the actions and show which ones are enabled or disabled.
try:
actionslist = os.listdir(PM_ACTIONS_DIR)
for action in actionslist:
path = "%s/%s" % (PM_ACTIONS_DIR, action)
(status, output) = commands.getstatusoutput("%s help" % path)
if os.access(path, os.X_OK):
print "[enabled] %-20s - %s" % (action, output)
else:
print "[disabled] %-20s - %s" % (action, output)
except:
error("Could not retrieve list of available actions")
def get_action_status():
print "obtaining status of"
def info(str):
print("INFO: %s" % str)
def error(str):
print("ERROR: %s" % str)
sys.exit(1)
if __name__ == '__main__':
hasOptions = False
# Option Parser
usage = "usage: %prog <parameters>\n\
\n\
%prog is a utility that allows to enable and disable available PowerNap\n\
actions.\n\
\n\
%prog --enable [action]\n\
%prog --disable [action]\n\
%prog --list"
parser = OptionParser(usage)
parser.add_option('-e', '--enable', action='store', type='string', dest='enable',
help='enable available PowerNap actions', metavar='ACTION')
parser.add_option('-d', '--disable', action='store', type='string', dest='disable',
help='disable available PowerNap actions', metavar='ACTION')
parser.add_option('-l', '--list', action='store_true', dest='list', help='Lists available actions')
(opt, args) = parser.parse_args()
if opt.list and opt.enable:
error("Options -l (--list) and -e (--enable) are mutually exclusive")
sys.exit(1)
if opt.list and opt.disable:
error("Options -l (--list) and -d (--disable) are mutually exclusive")
if opt.enable and opt.disable:
error("Options -e (--enable) and -d (--disable) are mutually exclusive")
sys.exit(1)
if opt.enable:
hasOptions = True
# Check if action exists, if not, exit
if not action_exists(opt.enable):
error("[%s] does not exist, exiting..." % opt.enable)
sys.exit(1)
# If action is not enabled, enable it, otherwise do nothing.
if not is_action_enabled(opt.enable):
do_action_enable(opt.enable)
else:
info("[%s] is already enabled, skipping..." % opt.enable)
if opt.disable:
hasOptions = True
# Check if action exists, if not, exit
if not action_exists(opt.disable):
error("[%s] does not exist, exiting..." % opt.disable)
sys.exit(1)
# If action is enabled, disable it, otherwise do nothing.
if is_action_enabled(opt.disable):
do_action_disable(opt.disable)
else:
info("[%s] is already disabled, skipping..." % opt.disable)
if opt.list:
hasOptions = True
list_available_actions()
if not hasOptions:
print parser.get_usage()
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