else:
d[checksum] = [name]
return d
def check_pairs(names):
"""Checks whether any in a list of files differs from the others.
names: list of string filenames
"""
for name1 in names:
for name2 in names:
if name1 < name2:
res, stat = check_diff(name1, name2)
if res:
return False
return True
def print_duplicates(d):
"""Checks for duplicate files.
Reports any files with the same checksum and checks whether they
are, in fact, identical.
d: map from checksum to list of files with that checksum
"""
for key, names in d.iteritems():
if len(names) > 1:
print 'The following files have the same checksum:'
for name in names:
print name
if check_pairs(names):
print 'And they are identical.'
if __name__ == '__main__':
d = compute_checksums(dirname='.', suffix='.py')
print_duplicates(d)
