nix-super/src/libexpr/fetchurl.nix
Eelco Dolstra d641e8f717 builtin:fetchurl: Revert impureEnvVars attribute
This was changed in #10611, which caused the derivation paths of
anything using builtin:fetchurl to change (i.e. all of
Nixpkgs). However, impureEnvVars doesn't actually do anything for
builtin:fetchurl, so we can just set it to its historical value.
2024-05-07 11:25:07 +02:00

40 lines
1.1 KiB
Nix

{ system ? "" # obsolete
, url
, hash ? "" # an SRI hash
# Legacy hash specification
, md5 ? "", sha1 ? "", sha256 ? "", sha512 ? ""
, outputHash ?
if hash != "" then hash else if sha512 != "" then sha512 else if sha1 != "" then sha1 else if md5 != "" then md5 else sha256
, outputHashAlgo ?
if hash != "" then "" else if sha512 != "" then "sha512" else if sha1 != "" then "sha1" else if md5 != "" then "md5" else "sha256"
, executable ? false
, unpack ? false
, name ? baseNameOf (toString url)
, impure ? false
}:
derivation ({
builder = "builtin:fetchurl";
# New-style output content requirements.
outputHashMode = if unpack || executable then "recursive" else "flat";
inherit name url executable unpack;
system = "builtin";
# No need to double the amount of network traffic
preferLocalBuild = true;
# This attribute does nothing; it's here to avoid changing evaluation results.
impureEnvVars = [
"http_proxy" "https_proxy" "ftp_proxy" "all_proxy" "no_proxy"
];
# To make "nix-prefetch-url" work.
urls = [ url ];
} // (if impure
then { __impure = true; }
else { inherit outputHashAlgo outputHash; }))