nixpkgs/pkgs/tools/compression/zstd/default.nix

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{ stdenv, fetchFromGitHub, gnugrep
, fixDarwinDylibNames
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, file
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, legacySupport ? false }:
stdenv.mkDerivation rec {
name = "zstd-${version}";
version = "1.4.0";
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src = fetchFromGitHub {
sha256 = "1gfxi3ymgavjfxh84rhfjan7l4pymwfrn051nwc7n0s3mxp09m6v";
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rev = "v${version}";
repo = "zstd";
owner = "facebook";
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};
buildInputs = stdenv.lib.optional stdenv.isDarwin fixDarwinDylibNames;
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makeFlags = [
"ZSTD_LEGACY_SUPPORT=${if legacySupport then "1" else "0"}"
];
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checkInputs = [ file ];
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doCheck = true;
preCheck = ''
substituteInPlace tests/playTests.sh \
--replace 'MD5SUM="md5 -r"' 'MD5SUM="md5sum"'
'';
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installFlags = [
"PREFIX=$(out)"
];
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preInstall = ''
substituteInPlace programs/zstdgrep \
--replace ":-grep" ":-${gnugrep}/bin/grep" \
--replace ":-zstdcat" ":-$out/bin/zstdcat"
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substituteInPlace programs/zstdless \
--replace "zstdcat" "$out/bin/zstdcat"
'';
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meta = with stdenv.lib; {
description = "Zstandard real-time compression algorithm";
longDescription = ''
Zstd, short for Zstandard, is a fast lossless compression algorithm,
targeting real-time compression scenarios at zlib-level compression
ratio. Zstd can also offer stronger compression ratio at the cost of
compression speed. Speed/ratio trade-off is configurable by small
increment, to fit different situations. Note however that decompression
speed is preserved and remain roughly the same at all settings, a
property shared by most LZ compression algorithms, such as zlib.
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'';
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homepage = https://facebook.github.io/zstd/;
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# The licence of the CLI programme is GPLv2+, that of the library BSD-2.
license = with licenses; [ gpl2Plus bsd2 ];
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platforms = platforms.unix;
maintainers = with maintainers; [ orivej ];
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};
}