nixpkgs/pkgs/tools/compression/zstd/default.nix
2017-11-03 19:58:01 +01:00

50 lines
1.5 KiB
Nix

{ stdenv, fetchFromGitHub, gnugrep
, legacySupport ? false }:
stdenv.mkDerivation rec {
name = "zstd-${version}";
version = "1.3.2";
src = fetchFromGitHub {
sha256 = "1hwh6pw1z3y5kpwcwxrk8cwc83anigiqhy3z06ywy1jll8im57pz";
rev = "v${version}";
repo = "zstd";
owner = "facebook";
};
makeFlags = [
"ZSTD_LEGACY_SUPPORT=${if legacySupport then "1" else "0"}"
];
installFlags = [
"PREFIX=$(out)"
];
preInstall = ''
substituteInPlace programs/zstdgrep \
--replace "=grep" "=${gnugrep}/bin/grep" \
--replace "=zstdcat" "=$out/bin/zstdcat"
substituteInPlace programs/zstdless \
--replace "zstdcat" "$out/bin/zstdcat"
'';
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.
'';
homepage = http://www.zstd.net/;
# The licence of the CLI programme is GPLv2+, that of the library BSD-2.
license = with licenses; [ gpl2Plus bsd2 ];
platforms = platforms.unix;
maintainers = with maintainers; [ nckx orivej ];
};
}