25 lines
624 B
Nix
25 lines
624 B
Nix
let mirrors = import ./mirrors.nix; in
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{ system }:
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{ url ? builtins.head urls
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, urls ? []
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, sha256 ? ""
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, hash ? ""
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, name ? baseNameOf (toString url)
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}:
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# assert exactly one hash is set
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assert hash != "" || sha256 != "";
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assert hash != "" -> sha256 == "";
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import <nix/fetchurl.nix> {
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inherit system hash sha256 name;
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url =
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# Handle mirror:// URIs. Since <nix/fetchurl.nix> currently
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# supports only one URI, use the first listed mirror.
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let m = builtins.match "mirror://([a-z]+)/(.*)" url; in
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if m == null then url
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else builtins.head (mirrors.${builtins.elemAt m 0}) + (builtins.elemAt m 1);
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}
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