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31 lines
2.3 KiB
Nix
31 lines
2.3 KiB
Nix
let
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hashAlgos = [ "md5" "md5" "md5" "sha1" "sha1" "sha1" "sha256" "sha256" "sha256" "sha512" "sha512" "sha512" ];
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hashesBase16 = import ./eval-okay-hashstring.exp;
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map2 = f: { fsts, snds }: if fsts == [ ] then [ ] else [ (f (builtins.head fsts) (builtins.head snds)) ] ++ map2 f { fsts = builtins.tail fsts; snds = builtins.tail snds; };
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map2' = f: fsts: snds: map2 f { inherit fsts snds; };
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getOutputHashes = hashes: {
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hashesBase16 = map2' (hashAlgo: hash: builtins.convertHash { inherit hash hashAlgo; toHashFormat = "base16";}) hashAlgos hashes;
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hashesBase32 = map2' (hashAlgo: hash: builtins.convertHash { inherit hash hashAlgo; toHashFormat = "base32";}) hashAlgos hashes;
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hashesBase64 = map2' (hashAlgo: hash: builtins.convertHash { inherit hash hashAlgo; toHashFormat = "base64";}) hashAlgos hashes;
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hashesSRI = map2' (hashAlgo: hash: builtins.convertHash { inherit hash hashAlgo; toHashFormat = "sri" ;}) hashAlgos hashes;
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};
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getOutputHashesColon = hashes: {
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hashesBase16 = map2' (hashAlgo: hashBody: builtins.convertHash { hash = hashAlgo + ":" + hashBody; toHashFormat = "base16";}) hashAlgos hashes;
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hashesBase32 = map2' (hashAlgo: hashBody: builtins.convertHash { hash = hashAlgo + ":" + hashBody; toHashFormat = "base32";}) hashAlgos hashes;
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hashesBase64 = map2' (hashAlgo: hashBody: builtins.convertHash { hash = hashAlgo + ":" + hashBody; toHashFormat = "base64";}) hashAlgos hashes;
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hashesSRI = map2' (hashAlgo: hashBody: builtins.convertHash { hash = hashAlgo + ":" + hashBody; toHashFormat = "sri" ;}) hashAlgos hashes;
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};
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outputHashes = getOutputHashes hashesBase16;
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in
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# map2'`
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assert map2' (s1: s2: s1 + s2) [ "a" "b" ] [ "c" "d" ] == [ "ac" "bd" ];
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# hashesBase16
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assert outputHashes.hashesBase16 == hashesBase16;
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# standard SRI hashes
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assert outputHashes.hashesSRI == (map2' (hashAlgo: hashBody: hashAlgo + "-" + hashBody) hashAlgos outputHashes.hashesBase64);
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# without prefix
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assert builtins.all (x: getOutputHashes x == outputHashes) (builtins.attrValues outputHashes);
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# colon-separated.
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# Note that colon prefix must not be applied to the standard SRI. e.g. "sha256:sha256-..." is illegal.
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assert builtins.all (x: getOutputHashesColon x == outputHashes) (with outputHashes; [ hashesBase16 hashesBase32 hashesBase64 ]);
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outputHashes
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