20 lines
458 B
Nix
20 lines
458 B
Nix
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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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}:
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import <nix/fetchurl.nix> {
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inherit system sha256;
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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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