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# Back In Time
# Copyright (C) 2008-2009 Oprea Dan
#
# 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; either version 2 of the License, or
# (at your option) any later version.
#
# 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, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
import os.path
import os
import sys
def get_backintime_path( path ):
return os.path.join( os.path.dirname( os.path.abspath( os.path.dirname( __file__ ) ) ), path )
def register_backintime_path( path ):
path = get_backintime_path( path )
if not path in sys.path:
sys.path = [path] + sys.path
def read_file( path, default_value = None ):
ret_val = default_value
try:
file = open( path )
ret_val = file.read()
file.close()
except:
pass
return ret_val
def read_file_lines( path, default_value = None ):
ret_val = default_value
try:
file = open( path )
ret_val = file.readlines()
file.close()
except:
pass
return ret_val
def read_command_output( cmd ):
ret_val = ''
try:
pipe = os.popen( cmd )
ret_val = pipe.read().strip()
pipe.close()
except:
return ''
return ret_val
def check_command( cmd ):
cmd = cmd.strip()
if len( cmd ) < 1:
return False
if os.path.isfile( cmd ):
return True
cmd = read_command_output( "which \"%s\"" % cmd )
if len( cmd ) < 1:
return False
if os.path.isfile( cmd ):
return True
return False
def make_dirs( path ):
path = path.rstrip( os.sep )
if len( path ) <= 0:
return
if not os.path.isdir( path ):
try:
os.makedirs( path )
except:
pass
def process_exists( name ):
output = read_command_output( "ps -o pid= -C %s" % name )
return len( output ) > 0
def check_x_server():
return 0 == os.system( 'xdpyinfo >/dev/null 2>&1' )
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