ubuntu-dev-tools/update-maintainer

#! /usr/bin/python
# 
#   update-maintainer - this script is used to update the Maintainer field of an
#                       Ubuntu package, as approved by the Ubuntu Technical
#                       Board at:
#
#       https://lists.ubuntu.com/archives/ubuntu-devel/2009-May/028213.html
#
#   Copyright (C) 2009 Jonathan Davies <jpds@ubuntu.com>
#
#   Original shell script was:
#
#   Copyright 2007 (C) Albin Tonnerre (Lutin) <lut1n.tne@gmail.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, either version 3 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, see <http://www.gnu.org/licenses/>.
#

import optparse
import os
import re
import sys
import ubuntutools.packages

script_name = os.path.basename(sys.argv[0])
usage = "%s [options]" % (script_name)
epilog = "See %s(1) for more info." % (script_name)
parser = optparse.OptionParser(usage=usage, epilog=epilog)
parser.add_option("-q", "--quiet", help="print no informational messages",
		dest="quiet", action="store_true", default=False)
(options, args) = parser.parse_args()

valid_locations = ["debian/control.in", "control.in", "debian/control", "control"]
control_file_found = False

# Check changelog file exists.
for location in valid_locations:
	if os.path.exists(location):
		control_file_found = True
		control_file = location
		break # Stop looking.

# Check if we've found a control file.
if not control_file_found:
	sys.stderr.write("Unable to find debian/control file.\n")
	sys.exit(1)

# Read found file contents.
debian_control_file = open(control_file, "r")
file_contents = debian_control_file.read()
debian_control_file.close()

# Check if there is a Maintainer field in file found.
if not 'Maintainer' in file_contents:
	sys.stderr.write("Unable to find Maintainer field in %s.\n" % control_file)
	sys.exit(1)

package_field = re.findall('(Source:) (.*)', file_contents)
package_name = package_field[0][1]

# Get maintainer field information.
maintainer_field = re.findall('(Maintainer:) (.*) (<.*>)', file_contents)

# Split out maintainer name and email address.
maintainer_name = maintainer_field[0][1]
maintainer_mail = maintainer_field[0][2]

if maintainer_mail.find("@ubuntu.com") != -1:
	if not options.quiet:
		print "Maintainer email is set to an @ubuntu.com address - doing nothing."
	sys.exit(0)

# Check if Maintainer field is as approved in TB decision.
if 'Ubuntu Developers' in maintainer_name and \
	'<ubuntu-devel-discuss@lists.ubuntu.com>' in maintainer_mail:
	if not options.quiet:
		print "Ubuntu Developers is already set as maintainer."
	sys.exit(0)

if not (ubuntutools.packages.checkIsInDebian(package_name, 'unstable') or ubuntutools.packages.checkIsInDebian(package_name, 'experimental')):
	user_email_address = os.getenv('DEBEMAIL')
	if not user_email_address:
		user_email_address = os.getenv('EMAIL')
		if not user_email_address:
			sys.stderr.write('The environment variable DEBEMAIL or EMAIL ' +\
				'needs to be set to make proper use of this script.\n')
			sys.exit(1)
	user_name = os.getenv('DEBFULLNAME')
	if not user_name:
		sys.stderr.write('The environment variable DEBFULLNAME ' +\
			'needs to be set to make proper use of this script.\n')
		sys.exit(1)
	target_maintainer = user_name + ' <' + user_email_address + '>'
else:
	target_maintainer = "Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>"

# Set original maintainer field in a string.
original_maintainer = maintainer_name + " " + maintainer_mail

# If maintainer-field contained the pre-archive-reorganisation entries, don't add a new
# XSBC-Original maintainer field

if not "lists.ubuntu.com" in original_maintainer:
	# Remove existing Original-Maintainer field
	# to avoid multiple Original-Maintainer fields
	original_maintainer_fields = re.findall('(.*Original-Maintainer): (.*)', file_contents)
	if len(original_maintainer_fields) > 0:
		for original_maintainer_field in original_maintainer_fields:
			if not options.quiet:
				print "Removing existing %s: %s" % original_maintainer_field
		file_contents = re.sub('.*Original-Maintainer: .*\n', "", file_contents)
	final_addition = "Maintainer: " + target_maintainer + "\nXSBC-Original-Maintainer: " + original_maintainer
else:
	final_addition = "Maintainer: " + target_maintainer

if not options.quiet:
	print "The original maintainer for this package is: " + original_maintainer
	print "Resetting as: " + target_maintainer

# Replace text.
debian_control_file = open(control_file, "w")
original_maintainer_line = "Maintainer: " + original_maintainer
debian_control_file.write(re.sub(re.escape(original_maintainer_line), final_addition, file_contents))
debian_control_file.close()