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| author | Adam Joseph <adam@westernsemico.com> | 2022-09-16 00:47:54 -0700 |
|---|---|---|
| committer | Adam Joseph <adam@westernsemico.com> | 2022-09-16 00:48:01 -0700 |
| commit | b3550d9179611692a4e27fbe4e5f493f4e8713e3 (patch) | |
| tree | 8fceb58b5a90c4974279464e94901adc723fb1fc | |
| parent | 88a45d6149c0e304f6eb2efcc2d7a4d0d569f8af (diff) | |
libexpr/fetchurl.nix: allow __impure fetch
This commit adds an optional `__impure` parameter to fetchurl.nix, which allows
the caller to use `libfetcher`'s fetcher in an impure derivation. This allows
nixpkgs' patch-normalizing fetcher (fetchpatch) to be rewritten to use nix's
internal fetchurl, thereby eliminating the awkward "you can't use fetchpatch
here" banners scattered all over the place.
See also: https://github.com/NixOS/nixpkgs/pull/188587
| -rw-r--r-- | src/libexpr/fetchurl.nix | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/libexpr/fetchurl.nix b/src/libexpr/fetchurl.nix index 02531103b..38815fcc4 100644 --- a/src/libexpr/fetchurl.nix +++ b/src/libexpr/fetchurl.nix @@ -12,13 +12,13 @@ , executable ? false , unpack ? false , name ? baseNameOf (toString url) +, __impure ? false }: -derivation { +derivation ({ builder = "builtin:fetchurl"; # New-style output content requirements. - inherit outputHashAlgo outputHash; outputHashMode = if unpack || executable then "recursive" else "flat"; inherit name url executable unpack; @@ -38,4 +38,6 @@ derivation { # To make "nix-prefetch-url" work. urls = [ url ]; -} +} // (if __impure + then { inherit __impure; } + else { inherit outputHashAlgo outputHash; })) |