57 lines
1.4 KiB
Python
Executable File
57 lines
1.4 KiB
Python
Executable File
#!/usr/bin/python3
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#
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"""Script to sort kernel versions."""
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import apt_pkg
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import argparse
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import re
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import sys
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import os
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import typing
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def order_index(order: list[re.Pattern[str]], abi: str) -> int:
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"""Return the index of abi in order"""
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for i, entry in zip(range(len(order)), order):
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if entry.match(abi):
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return i
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return len(order)
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class KernelABI:
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"""Orderable kernel ABI string."""
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def __init__(self, abi: str, order: list[re.Pattern[str]]):
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self.abi = abi
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self._index = order_index(order, self.abi)
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def __lt__(self, other: "KernelABI") -> bool:
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if self._index != other._index:
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# Ordering is reversed, what should be considered highest comes first.
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return self._index > other._index
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return apt_pkg.version_compare(f"{self.abi}-0", f"{other.abi}-0") < 0
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def main() -> None:
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"""Entry point."""
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apt_pkg.init()
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parser = argparse.ArgumentParser(
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prog="grub-sort-version", description="sort kernel ABIs"
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)
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parser.add_argument("-r", "--reverse", action="store_true")
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args = parser.parse_args()
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order = []
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for flavour in os.environ.get("GRUB_FLAVOUR_ORDER", "").split():
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order.append(re.compile(f"[\\s\\S]*-{flavour}(\\s*\\d*)$"))
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versions = [KernelABI(line.rstrip(), order) for line in sys.stdin]
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versions.sort(reverse=args.reverse)
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for v in versions:
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print(v.abi)
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if __name__ == "__main__":
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main()
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