31 lines
605 B
Nix
31 lines
605 B
Nix
with import <nix/config.nix>;
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let
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builder = builtins.toFile "nar.sh"
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''
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export PATH=${nixBinDir}:${coreutils}
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echo "packing ‘$storePath’..."
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mkdir $out
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dst=$out/tmp.nar.bz2
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set -o pipefail
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nix-store --dump "$storePath" | ${bzip2} > $dst
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nix-hash --flat --type $hashAlgo --base32 $dst > $out/narbz2-hash
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mv $out/tmp.nar.bz2 $out/$(cat $out/narbz2-hash).nar.bz2
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'';
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in
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{ storePath, hashAlgo }:
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derivation {
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name = "nar";
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system = builtins.currentSystem;
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builder = shell;
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args = [ "-e" builder ];
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inherit storePath hashAlgo;
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}
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