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Python code to generate git SHA-1 hashes
#!/usr/bin/env python
from sys import argv
from hashlib import sha1
from cStringIO import StringIO
class githash(object):
def __init__(self):
self.buf = StringIO()
def update(self, data):
self.buf.write(data)
def hexdigest(self):
data = self.buf.getvalue()
h = sha1()
h.update("blob %u\0" % len(data))
h.update(data)
return h.hexdigest()
def githash_data(data):
h = githash()
h.update(data)
return h.hexdigest()
def githash_fileobj(fileobj):
return githash_data(fileobj.read())
if __name__ == '__main__':
for filename in argv[1:]:
fileobj = file(filename)
print(githash_fileobj(fileobj))
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