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#!/usr/bin/python
# Example demonstrating how to use the configuration/commandline system
# for configuration.
# Some valid command lines..
# config.py -h --help ; Turn on help
# config.py -no-h --no-help --help=no ; Turn off help
# config.py -qqq -q=3 ; verbosity to 3
# config.py -c /etc/apt/apt.conf ; include that config file]
# config.py -o help=true ; Turn on help by giving a config file string
# config.py -no-h -- -help ; Turn off help, specify the file '-help'
# -c and -o are standard APT-program options.
# This shows how to use the system for configuration and option control.
# The other varient is for ISC object config files. See configisc.py.
import apt_pkg,sys,posixpath;
# Create a new empty Configuration object - there is also the system global
# configuration object apt_pkg.Config which is used interally by apt-pkg
# routines to control unusual situations. I recommend using the sytem global
# whenever possible..
Cnf = apt_pkg.newConfiguration();
print "Command line is",sys.argv
# Load the default configuration file, InitConfig() does this better..
Cnf.Set("config-file","/etc/apt/apt.conf"); # or Cnf["config-file"] = "..";
if posixpath.exists(Cnf.FindFile("config-file")):
apt_pkg.ReadConfigFile(Cnf,"/etc/apt/apt.conf");
# Merge the command line arguments into the configuration space
Arguments = [('h',"help","help"),
('v',"version","version"),
('q',"quiet","quiet","IntLevel"),
('c',"config-file","","ConfigFile"),
('o',"option","","ArbItem")]
print "FileNames",apt_pkg.ParseCommandLine(Cnf,Arguments,sys.argv);
print "Quiet level selected is",Cnf.FindI("quiet",0);
# Do some stuff with it
if Cnf.FindB("version",0) == 1:
print "Version selected - 1.1";
if Cnf.FindB("help",0) == 1:
print apt_pkg.Package,apt_pkg.Version,"for",apt_pkg.Architecture, \
"compiled on",apt_pkg.Date,apt_pkg.Time;
print "Hi, I am the help text for this program";
sys.exit(0);
print "No help for you, try -h";
# Print the configuration space
print "The Configuration space looks like:";
for I in Cnf.keys():
print "%s \"%s\";"%(I,Cnf[I]);
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