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# vim: set fileencoding=utf-8 :
#
# (C) 2012 Daniel Dehennin <daniel.dehennin@baby-gnu.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/>
"""A Debian Control file"""
import email
import os
class NoControlError(Exception):
"""No control found"""
pass
class ParseControlError(Exception):
"""Problem parsing control"""
pass
class Control(object):
"""A Debian control"""
def __init__(self, contents=None, filename="debian/control"):
"""
Parse an existing control file.
@param contents: content of a control file
@type contents: C{str}
@param filename: name of the control file
@type filename: C{str}
@return: Control object
@rtype: C{gbp.deb.control.Control} object
"""
if contents:
control = email.message_from_string(contents)
else:
if not os.access(filename, os.F_OK):
raise NoControlError("Control file %s does not exist" % filename)
with open(filename) as f:
control = email.message_from_file(f)
if not control.items():
raise ParseControlError("Empty or invalid control file or contents")
self._control = control
self.filename = filename
def __getitem__(self, item):
return self._control[item]
def __setitem__(self, item, value):
self._control[item] = value
@property
def name(self):
"""The name of the package"""
return self._control['Source']
@property
def section(self):
"""The section of the package"""
return self._control['Section']
@property
def priority(self):
"""The priority of the package"""
return self._control['Priority']
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