kumquat-buildroot/utils/checkpackagelib/lib_hash.py

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# See utils/checkpackagelib/readme.txt before editing this file.
# The validity of the hashes itself is checked when building, so below check
# functions don't need to check for things already checked by running
# "make package-dirclean package-source".
import re
from base import _CheckFunction
# Notice: ignore 'imported but unused' from pyflakes for check functions.
from lib import ConsecutiveEmptyLines
from lib import EmptyLastLine
from lib import NewlineAtEof
from lib import TrailingSpace
def _empty_line_or_comment(text):
return text.strip() == "" or text.startswith("#")
class HashNumberOfFields(_CheckFunction):
def check_line(self, lineno, text):
if _empty_line_or_comment(text):
return
fields = text.split()
if len(fields) != 3:
return ["{}:{}: expected three fields ({}#adding-packages-hash)"
.format(self.filename, lineno, self.url_to_manual),
text]
class HashType(_CheckFunction):
len_of_hash = {"md5": 32, "sha1": 40, "sha224": 56, "sha256": 64,
"sha384": 96, "sha512": 128}
def check_line(self, lineno, text):
if _empty_line_or_comment(text):
return
fields = text.split()
if len(fields) < 2:
return
htype, hexa = fields[:2]
if htype == "none":
return
if htype not in self.len_of_hash.keys():
return ["{}:{}: unexpected type of hash ({}#adding-packages-hash)"
.format(self.filename, lineno, self.url_to_manual),
text]
if not re.match("^[0-9A-Fa-f]{%s}$" % self.len_of_hash[htype], hexa):
return ["{}:{}: hash size does not match type "
"({}#adding-packages-hash)"
.format(self.filename, lineno, self.url_to_manual),
text,
"expected {} hex digits".format(self.len_of_hash[htype])]