def generate(self):
"""
Replace file hashes with new ones by running
``hashlib.sha1()`` on the file contents.
"""
hashes = []
for filename, ignore in self.data:
h = util.sha1_digest(filename)
if not h:
raise ValueError, 'FileRefTableHDU.generate() failed take SHA1 of "%s"' % filename
hashes.append(h.hexdigest())
continue
self.set_column_array("SHA1Hash", hashes)
return
def validate(self):
"""
Validate the referenced files.
This will locate each file by its path and calculate the SHA1
hash of its contents.
See util.full_path() for how the files are located.
"""
for name, digest in self.data:
h = util.sha1_digest(name)
if not h:
raise ValueError, 'Failed to take SHA1 of "%s"' % name
h = h.hexdigest()
if h != digest:
raise ValueError, 'SHA1 hash mismatch for "%s": %s != %s' % (name, h, digest)
continue
return
