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|
{ lib, stdenv
, fetchurl
, makeWrapper
, xz
}:
# Note: this package is used for bootstrapping fetchurl, and thus
# cannot use fetchpatch! All mutable patches (generated by GitHub or
# cgit) that are needed here should be included directly in Nixpkgs as
# files.
stdenv.mkDerivation rec {
pname = "gzip";
version = "1.12";
src = fetchurl {
url = "mirror://gnu/gzip/${pname}-${version}.tar.xz";
sha256 = "sha256-zl4D5Rn2N+H4FAEazjXE+HszwLur7sNbr1+9NHnpGVY=";
};
outputs = [ "out" "man" "info" ];
enableParallelBuilding = true;
nativeBuildInputs = [ xz.bin makeWrapper ];
makeFlags = [
"SHELL=/bin/sh"
"GREP=grep"
# gzip 1.12 doesn't build `zless` unless it can find `less`, but we
# can avoid having `less` as a build input if we just override these.
"ZLESS_MAN=zless.1"
"ZLESS_PROG=zless"
];
# Many gzip executables are shell scripts that depend upon other gzip
# executables being in $PATH. Rather than try to re-write all the
# internal cross-references, just add $out/bin to PATH at the top of
# all the executables that are shell scripts.
preFixup = ''
sed -i '1{;/#!\/bin\/sh/aPATH="'$out'/bin:$PATH"
}' $out/bin/*
''
# run gzip with "-n" when $GZIP_NO_TIMESTAMPS (set by stdenv's setup.sh) is set to stop gzip from adding timestamps
# to archive headers: https://github.com/NixOS/nixpkgs/issues/86348
# if changing so that there's no longer a .gzip-wrapped then update copy in make-bootstrap-tools.nix
+ ''
wrapProgram $out/bin/gzip \
--add-flags "\''${GZIP_NO_TIMESTAMPS:+-n}"
'';
meta = {
homepage = "https://www.gnu.org/software/gzip/";
description = "GNU zip compression program";
longDescription =
''gzip (GNU zip) is a popular data compression program written by
Jean-loup Gailly for the GNU project. Mark Adler wrote the
decompression part.
We developed this program as a replacement for compress because of
the Unisys and IBM patents covering the LZW algorithm used by
compress. These patents made it impossible for us to use compress,
and we needed a replacement. The superior compression ratio of gzip
is just a bonus.
'';
platforms = lib.platforms.all;
license = lib.licenses.gpl3Plus;
};
}
|