39 lines
996 B
Python
39 lines
996 B
Python
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import re
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VERSION_RE = re.compile(
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r"""
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(?P<release>[0-9]+(?:\.[0-9]+)*)
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(?:
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-(?P<pre_l>(alpha|beta))
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(?:
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\.(?P<pre_n>[0-9]+
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(?:
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\.[0-9]+
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)?
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)
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)?
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)?
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""",
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re.VERBOSE | re.IGNORECASE,
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)
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def parse_version(version: str):
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match = VERSION_RE.search(version)
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if not match:
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raise Exception(f"invalid version {version}")
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major, minor, patch = map(int, match.group("release").split("."))
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pre_mapping = {"alpha": -2, "beta": -1, None: 0, "": 0}
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pre = pre_mapping[match.group("pre_l")]
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pre_major, pre_minor = 0, 0
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pre_version = match.group("pre_n")
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if pre_version:
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pre_version_list = pre_version.split(".")
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pre_major = int(pre_version_list.pop(0)) if len(pre_version_list) else 0
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pre_minor = int(pre_version_list.pop(0)) if len(pre_version_list) else 0
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return (major, minor, patch, pre, pre_major, pre_minor)
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