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92 lines
2.8 KiB
Python
Executable File
92 lines
2.8 KiB
Python
Executable File
#!/usr/bin/python
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# Given as input two live images, print out differences in their RPM content.
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#
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# Licensed under the new-BSD license (http://www.opensource.org/licenses/bsd-license.php)
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# Copyright (C) 2010 Red Hat, Inc.
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# Written by Colin Walters <walters@verbum.org>
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import os
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import sys
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import tempfile
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import subprocess
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import getopt
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def usage(ecode):
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print "Usage: %s img1.iso img2.iso" % (sys.argv[0], )
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print "Print differences between two live images"
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sys.exit(ecode)
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def main():
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try:
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opts,args = getopt.getopt(sys.argv[1:], 'h', ['help', 'debug'])
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except getopt.GetoptError, e:
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usage(1)
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version = None
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debug = False
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for o,a in opts:
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if o in ('-h', '--help'):
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usage(0)
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elif o in ('--debug', ):
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debug = True
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if len(args) != 2:
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usage(1)
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original = args[0]
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new = args[1]
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mount_temp = tempfile.mkdtemp()
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(fd, original_rpmdata) = tempfile.mkstemp()
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subprocess.check_call(['../livecd/tools/liveimage-mount', '--mount-hacks', '--chroot',
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original, mount_temp, 'rpm', '-qa', '--queryformat="%{NAME} %{SIZE}\n'],
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stdout=fd, stderr=sys.stderr)
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os.close(fd)
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(fd, new_rpmdata) = tempfile.mkstemp()
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subprocess.check_call(['../livecd/tools/liveimage-mount', '--mount-hacks', '--chroot',
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new, mount_temp, 'rpm', '-qa', '--queryformat="%{NAME} %{SIZE}\n'],
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stdout=fd, stderr=sys.stderr)
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os.close(fd)
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os.rmdir(mount_temp)
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original_rpms = {}
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new_rpms = {}
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def read_rpmdata(filename, data):
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f = open(filename)
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for line in f:
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line = line.strip()
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if not line: break
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(rpm, size) = line.split(' ', 1)
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data[rpm] = int(size)
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f.close()
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read_rpmdata(original_rpmdata, original_rpms)
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read_rpmdata(new_rpmdata, new_rpms)
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original_set = set(original_rpms)
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new_set = set(new_rpms)
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intersection = original_set.intersection(new_set)
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intersection_deltas = {}
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for rpm in intersection:
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delta = new_rpms[rpm] - original_rpms[rpm]
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if delta != 0:
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intersection_deltas[rpm] = delta
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added_set = new_set - original_set
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removed_set = original_set - new_set
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for rpm in sorted(added_set, lambda a,b: cmp(new_rpms[a], new_rpms[b])):
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print '+ %s %d' % (rpm, new_rpms[rpm])
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for rpm in sorted(removed_set, lambda a,b: cmp(original_rpms[a], original_rpms[b])):
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print '- %s %d' % (rpm, original_rpms[rpm])
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for rpm in sorted(intersection_deltas, lambda a,b: cmp(intersection_deltas[a], intersection_deltas[b])):
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print '= %s %d' % (rpm, intersection_deltas[rpm])
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sys.exit(0)
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if __name__ == '__main__':
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main()
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