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# vim: set fileencoding=utf-8 :
#
# (C) 2014 Guido Guenther <agx@sigxcpu.org>
# 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, please see
# <http://www.gnu.org/licenses/>
#
"""Query and display config file values"""
import sys
import os
from gbp.config import GbpOptionParser
from gbp.errors import GbpError
from gbp.scripts.supercommand import import_command
from gbp.scripts.common import ExitCodes
import gbp.log
def build_parser(name):
try:
parser = GbpOptionParser(command=os.path.basename(name), prefix='',
usage='%prog [options] command[.optionname] - display configuration settings')
except GbpError as err:
gbp.log.err(err)
return None
parser.add_option("-v", "--verbose", action="store_true", dest="verbose", default=False,
help="verbose command execution")
parser.add_config_file_option(option_name="color", dest="color", type='tristate')
parser.add_config_file_option(option_name="color-scheme",
dest="color_scheme")
return parser
def parse_args(argv):
parser = build_parser(argv[0])
if not parser:
return None, None
return parser.parse_args(argv)
def build_cmd_parser(section):
"""
Populate the parser to get a list of valid options
"""
try:
# Populate the parser to get a list of
# valid options
module = import_command(section)
parser = module.build_parser(section)
except (AttributeError, ImportError):
# Use the default parser for section that don't
# map to a command
parser = GbpOptionParser(section)
parser.parse_config_files()
return parser
def print_single_option(parser, option, printer):
value = parser.get_config_file_value(option)
if value is not None:
printer("%s.%s=%s" % (parser.command, option, value))
else:
return 2
return 0
def print_all_options(parser, printer):
if not parser.valid_options:
return 2
for opt in parser.valid_options:
value = parser.get_config_file_value(opt)
printer("%s.%s=%s" % (parser.command, opt, value))
return 0
def print_cmd_values(query, printer):
"""
Print configuration values of a command
@param query: the section to print the values for or section.option to
print
@param printer: the printer to output the values
"""
if not query:
return 2
try:
section, option = query.split('.')
except ValueError:
section = query
option = None
parser = build_cmd_parser(section)
if option: # Single option query
return print_single_option(parser, option, printer)
else: # all options
return print_all_options(parser, printer)
def value_printer(value):
if (value):
print(value)
def main(argv):
retval = 1
(options, args) = parse_args(argv)
if options is None:
return ExitCodes.parse_error
gbp.log.setup(options.color, options.verbose, options.color_scheme)
if not args:
gbp.log.error("No command given")
return 2
elif len(args) != 2:
gbp.log.error("Can only take a command or command.optionname, check --help")
return 2
else:
query = args[1]
retval = print_cmd_values(query, value_printer)
return retval
if __name__ == '__main__':
sys.exit(main(sys.argv))
# vim:et:ts=4:sw=4:et:sts=4:ai:set list listchars=tab\:»·,trail\:·:
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