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nixos/systemd-boot: fix systemd-boot-builder refusing to update

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Handling of the string length condition in should_update
was broken, as evident with the log message

> leaving systemd-boot 246 in place (250.4 is not newer)

Discussion with @mweinelt came to the conclusion
that Python's "<" operator already does what we need,
so the should_update function can be dropped.

Fixes a30de3b849
This commit is contained in:
Matthias Treydte 2022-05-31 16:42:33 +02:00
parent 5643714dea
commit ff24f484af
1 changed files with 1 additions and 16 deletions
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17
nixos/modules/system/boot/loader/systemd-boot/systemd-boot-builder.py
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@ -204,21 +204,6 @@ def get_profiles() -> List[str]:
else:
return []
def should_update(v_from: str, v_to: str) -> bool:
# see https://github.com/systemd/systemd/blob/main/src/boot/bootctl.c compare_product function
len_from = len(v_from)
len_to = len(v_to)
if len_from < len_to:
return False
if len_from > len_to:
return True
return v_from < v_to
def main() -> None:
parser = argparse.ArgumentParser(description='Update NixOS-related systemd-boot files')
parser.add_argument('default_config', metavar='DEFAULT-CONFIG', help='The default NixOS config to boot')
@ -276,7 +261,7 @@ def main() -> None:
installed_version = installed_match.group(1)
available_version = available_match.group(1)
if should_update(installed_version, available_version):
if installed_version < available_version:
print("updating systemd-boot from %s to %s" % (installed_version, available_version))
subprocess.check_call(["@systemd@/bin/bootctl", "--path=@efiSysMountPoint@", "update"])
else: