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#!/usr/bin/python
import re
import sys
def read_dpkgfile(file):
d = {}
with open(file) as f:
for line in f:
line = " ".join(line.split())
m = re.search('^ii (\S+) (\S+).*', line)
if m:
d[m.group(1)] = m.group(2)
return d
def main():
c = []
r = []
a = []
d1 = read_dpkgfile(sys.argv[1])
d2 = read_dpkgfile(sys.argv[2])
for pkg in d1.keys():
if pkg in d2:
if d1[pkg] != d2[pkg]:
c.append("%s from %s to %s" % (pkg, d1[pkg], d2[pkg]))
del d2[pkg]
else:
r.append("%s (%s)" % (pkg, d1[pkg]))
for pkg in d2.keys():
a.append("%s (%s)" % (pkg, d2[pkg]))
if len(a)+len(r)+len(c) == 0:
print("Files %s and %s are identical" % (sys.argv[1], sys.argv[2]))
else:
if len(a):
print("Added packages:")
for line in sorted(a):
print('\t'+line)
print("")
if len (c):
print("Changed packages:")
for line in sorted(c):
print('\t'+line)
print("")
if len(r):
print("Removed packages:")
for line in sorted(r):
print('\t'+line)
if __name__ == "__main__":
main()
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