50 lines
1.5 KiB
Nix
50 lines
1.5 KiB
Nix
{ stdenv, fetchFromGitHub, gnugrep
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, legacySupport ? false }:
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stdenv.mkDerivation rec {
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name = "zstd-${version}";
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version = "1.3.3";
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src = fetchFromGitHub {
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sha256 = "15h9i9ygry0znlmvll5r21lzwgyqzynaw9q2wbj4bcn7zjy4c1pn";
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rev = "v${version}";
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repo = "zstd";
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owner = "facebook";
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};
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makeFlags = [
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"ZSTD_LEGACY_SUPPORT=${if legacySupport then "1" else "0"}"
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];
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installFlags = [
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"PREFIX=$(out)"
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];
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preInstall = ''
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substituteInPlace programs/zstdgrep \
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--replace "=grep" "=${gnugrep}/bin/grep" \
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--replace "=zstdcat" "=$out/bin/zstdcat"
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substituteInPlace programs/zstdless \
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--replace "zstdcat" "$out/bin/zstdcat"
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'';
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meta = with stdenv.lib; {
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description = "Zstandard real-time compression algorithm";
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longDescription = ''
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Zstd, short for Zstandard, is a fast lossless compression algorithm,
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targeting real-time compression scenarios at zlib-level compression
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ratio. Zstd can also offer stronger compression ratio at the cost of
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compression speed. Speed/ratio trade-off is configurable by small
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increment, to fit different situations. Note however that decompression
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speed is preserved and remain roughly the same at all settings, a
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property shared by most LZ compression algorithms, such as zlib.
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'';
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homepage = http://www.zstd.net/;
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# The licence of the CLI programme is GPLv2+, that of the library BSD-2.
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license = with licenses; [ gpl2Plus bsd2 ];
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platforms = platforms.unix;
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maintainers = with maintainers; [ orivej ];
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};
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}
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