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#!/usr/bin/python
# Copyright 1999-2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Id$
#
# archive-conf -- save off a config file in the dispatch-conf archive dir
#
# Written by Wayne Davison <gentoo@blorf.net> with code snagged from
# Jeremy Wohl's dispatch-conf script and the portage chkcontents script.
#
import os, sys
try:
import portage
except ImportError:
from os import path as osp
sys.path.insert(0, osp.join(osp.dirname(osp.dirname(osp.realpath(__file__))), "pym"))
import portage
import dispatch_conf
FIND_EXTANT_CONTENTS = "find %s -name CONTENTS"
MANDATORY_OPTS = [ 'archive-dir' ]
try:
import fchksum
def perform_checksum(filename): return fchksum.fmd5t(filename)
except ImportError:
import md5
def md5_to_hex(md5sum):
hexform = ""
for ix in xrange(len(md5sum)):
hexform = hexform + "%02x" % ord(md5sum[ix])
return hexform.lower()
def perform_checksum(filename):
f = open(filename, 'rb')
blocksize=32768
data = f.read(blocksize)
size = 0L
sum = md5.new()
while data:
sum.update(data)
size = size + len(data)
data = f.read(blocksize)
return (md5_to_hex(sum.digest()),size)
def archive_conf():
args = []
content_files = []
md5_match_hash = {}
options = dispatch_conf.read_config(MANDATORY_OPTS)
for conf in sys.argv[1:]:
if not os.path.isabs(conf):
conf = os.path.abspath(conf)
args += [ conf ]
md5_match_hash[conf] = ''
# Find all the CONTENT files in VDB_PATH.
content_files += os.popen(FIND_EXTANT_CONTENTS % (portage.root+portage.VDB_PATH)).readlines()
# Search for the saved md5 checksum of all the specified config files
# and see if the current file is unmodified or not.
try:
todo_cnt = len(args)
for file in content_files:
file = file.rstrip()
try:
contents = open(file, "r")
except IOError, e:
print >> sys.stderr, 'archive-conf: Unable to open %s: %s' % (file, e)
sys.exit(1)
lines = contents.readlines()
for line in lines:
items = line.split()
if items[0] == 'obj':
for conf in args:
if items[1] == conf:
stored = items[2].lower()
real = perform_checksum(conf)[0].lower()
if stored == real:
md5_match_hash[conf] = conf
todo_cnt -= 1
if todo_cnt == 0:
raise "Break"
except "Break":
pass
for conf in args:
archive = os.path.join(options['archive-dir'], conf.lstrip('/'))
if options['use-rcs'] == 'yes':
dispatch_conf.rcs_archive(archive, conf, md5_match_hash[conf], '')
if md5_match_hash[conf]:
dispatch_conf.rcs_archive_post_process(archive)
else:
dispatch_conf.file_archive(archive, conf, md5_match_hash[conf], '')
if md5_match_hash[conf]:
dispatch_conf.file_archive_post_process(archive)
# run
if len(sys.argv) > 1:
archive_conf()
else:
print >> sys.stderr, 'Usage: archive-conf /CONFIG/FILE [/CONFIG/FILE...]'
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