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#!/usr/bin/env python
# License of this file:
# Copy, Modify, Change, Sell it at your will.
#
# There is absolutely no warranty with this file
#
# (C) Copyright 2006 Holger Hans Peter Freyther
def check_dir(name, error):
"""
Check if the given directory exists, if not error
is printed and the application is left.
"""
import os, sys
import stat
if not os.path.isdir(name):
print error
sys.exit(-1)
def find_packages(dir):
import os
contents = os.listdir(dir)
ipks = []
for f in contents:
(root,ext) = os.path.splitext(f)
if ext == ".ipk":
ipks.append( f )
return ipks
def diff_dirs( old_ipks, new_ipks ):
"""
We will return three lists. The first one will
contain the files that are only in a, the second
the files in both directories and the third one
will
"""
only_old = [ i for i in old_ipks if i not in new_ipks]
both = [ i for i in old_ipks if i in new_ipks ]
only_new = [ i for i in new_ipks if i not in old_ipks]
return only_old, both, only_new
def diff_packages( old, new ):
def compare( name, version, attribute, txt ):
"""
Compare package with name and version with method
and print error message
"""
try:
left = getattr( old[package_name][version], 'get_' + attribute )
right = getattr( new[package_name][version], 'get_' + attribute )
if not left() == right():
print txt
except Exception, e:
raise e
print "Error with %s %s and '%s'" % (package_name,version, txt)
for package_name in old.keys():
for version in old[package_name].keys():
print "Comparing %s %s" % (package_name, version)
compare( package_name, version, 'maintainer', "Maintainer is different" )
compare( package_name, version, 'architecture', "Architecture is different" )
compare( package_name, version, 'description', "Description is different" )
compare( package_name, version, 'depends', "Depends are different" )
compare( package_name, version, 'provides', "Provides are different" )
compare( package_name, version, 'conflicts', "Provides are different" )
compare( package_name, version, 'suggests', "Suggests are different" )
compare( package_name, version, 'source', "Source is different" )
compare( package_name, version, 'section', "Section is different" )
compare( package_name, version, 'file_list', "Filelist is different" )
compare( package_name, version, 'file_all_list', "Filelist is different" )
compare( package_name, version, 'md5', "MD5 is different" )
def print_result_start( old, both, new ):
"""
Print the findings of ipkg-diff
"""
print "ipkg-diff diff report"
print "%d packages found" % (len(old)+len(both)+len(new))
print "# of old/removed packages: %d" % len(old)
print "# of new packages: %d" % len(new)
print "# of possible changed packages: %d" % len(both)
print ""
if len(old) > 0:
for i in old:
print "Vanished ipk: %s" % i
if len(new) > 0:
for i in new:
print "New ipk: %s" % i
def parse_packages(dir, package_names):
import ipkg, os
packages = {}
for package in package_names:
p = ipkg.Package(os.path.join(dir, package))
if not p.get_package() in packages:
packages[p.get_package()] = {}
packages[p.get_package()][p.get_version()] = p
return packages
if __name__ == "__main__":
import os,sys
# sanity
if len(sys.argv) != 3:
print "ipkg-diff OLD NEW"
sys.exit(-2)
# check dirs
check_dir(sys.argv[1], "Source Directory does not exist")
check_dir(sys.argv[2], "Dest Directory does not exists")
# find packages
old_ipks = find_packages(sys.argv[1])
new_ipks = find_packages(sys.argv[2])
# find removed and new files
only_old, both, only_new = diff_dirs( old_ipks, new_ipks )
# print a summary header
print_result_start( only_old, both, only_new )
# start diffing the content by parsing the packages
print "Loading Content into memory"
old_packages = parse_packages(sys.argv[1], both )
new_packages = parse_packages(sys.argv[2], both )
diff_packages( old_packages, new_packages )
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