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default attribute to $UPDATE_NIX_ATTR_PATH

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figsoda 2022-12-24 21:38:18 -05:00
parent bb901a38a4
commit 71fbce46cf
1 changed files with 9 additions and 1 deletions
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10
nix_update/__init__.py
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@ -68,7 +68,15 @@ def parse_args(args: list[str]) -> Options:
help="Set filename where nix-update will update version/hash",
default=None,
)
parser.add_argument("attribute", help="Attribute name within the file evaluated")
default_attribute = os.getenv("UPDATE_NIX_ATTR_PATH")
parser.add_argument(
"attribute",
default=default_attribute,
nargs="?" if default_attribute else None, # type: ignore
help="Attribute name within the file evaluated",
)
a = parser.parse_args(args)
return Options(
import_path=os.path.realpath(a.file),