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Merge pull request #7052 from amjoseph-nixpkgs/pr/fetch/impure

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libexpr/fetchurl.nix: allow __impure fetch
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Eelco Dolstra 2022-09-16 13:50:50 +02:00 committed by GitHub
commit a38a55babe
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2 changed files with 10 additions and 3 deletions
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5
doc/manual/src/release-notes/rl-next.md
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@ -1,2 +1,7 @@
# Release X.Y (202?-??-??)
* `<nix/fetchurl.nix>` now accepts an additional argument `impure` which
defaults to `false`. If it is set to `true`, the `hash` and `sha256`
arguments will be ignored and the resulting derivation will have
`__impure` set to `true`, making it an impure derivation.

8
src/libexpr/fetchurl.nix
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@ -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 { __impure = true; }
else { inherit outputHashAlgo outputHash; }))