a752c7ab
 elopes
add first test an...
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"""
Semi Semantic Versioning
Implements a subset of semantic versioning that is supportable by the image header.
"""
import argparse
from collections import namedtuple
import re
SemiSemVersion = namedtuple('SemiSemVersion', ['major', 'minor', 'revision', 'build'])
version_re = re.compile(r"""^([1-9]\d*|0)(\.([1-9]\d*|0)(\.([1-9]\d*|0)(\+([1-9]\d*|0))?)?)?$""")
def decode_version(text):
"""Decode the version string, which should be of the form maj.min.rev+build"""
m = version_re.match(text)
# print("decode:", text, m.groups())
if m:
result = SemiSemVersion(
int(m.group(1)) if m.group(1) else 0,
int(m.group(3)) if m.group(3) else 0,
int(m.group(5)) if m.group(5) else 0,
int(m.group(7)) if m.group(7) else 0)
return result
else:
msg = "Invalid version number, should be maj.min.rev+build with later parts optional"
raise argparse.ArgumentTypeError(msg)
if __name__ == '__main__':
print(decode_version("1.2"))
print(decode_version("1.0"))
print(decode_version("0.0.2+75"))
print(decode_version("0.0.0+00"))
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