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

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{ lib, stdenv
, fetchurl
, xz
, writeText
}:
* The stdenv setup script now defines a generic builder that allows builders for typical Autoconf-style to be much shorten, e.g., . $stdenv/setup genericBuild The generic builder does lots of stuff automatically: - Unpacks source archives specified by $src or $srcs (it knows about gzip, bzip2, tar, zip, and unpacked source trees). - Determines the source tree. - Applies patches specified by $patches. - Fixes libtool not to search for libraries in /lib etc. - Runs `configure'. - Runs `make'. - Runs `make install'. - Strips debug information from static libraries. - Writes nested log information (in the format accepted by `log2xml'). There are also lots of hooks and variables to customise the generic builder. See `stdenv/generic/docs.txt'. * Adapted the base packages (i.e., the ones used by stdenv) to use the generic builder. * We now use `curl' instead of `wget' to download files in `fetchurl'. * Neither `curl' nor `wget' are part of stdenv. We shouldn't encourage people to download stuff in builders (impure!). * Updated some packages. * `buildinputs' is now `buildInputs' (but the old name also works). * `findInputs' in the setup script now prevents inputs from being processed multiple times (which could happen, e.g., if an input was a propagated input of several other inputs; this caused the size variables like $PATH to blow up exponentially in the worst case). * Patched GNU Make to write nested log information in the format accepted by `log2xml'. Also, prior to writing the build command, Make now writes a line `building X' to indicate what is being built. This is unfortunately often obscured by the gigantic tool invocations in many Makefiles. The actual build commands are marked `unimportant' so that they don't clutter pages generated by `log2html'. svn path=/nixpkgs/trunk/; revision=845
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# Note: this package is used for bootstrapping fetchurl, and thus
# cannot use fetchpatch! All mutable patches (generated by GitHub or
# cgit) that are needed here should be included directly in Nixpkgs as
# files.
stdenv.mkDerivation rec {
pname = "gzip";
version = "1.10";
src = fetchurl {
url = "mirror://gnu/gzip/${pname}-${version}.tar.xz";
sha256 = "1h6p374d3j8d4cdfydzls021xa2yby8myc0h8d6m8bc7k6ncq9c4";
};
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outputs = [ "out" "man" "info" ];
enableParallelBuilding = true;
nativeBuildInputs = [ xz.bin ];
makeFlags = [ "SHELL=/bin/sh" "GREP=grep" ];
# 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/*
'';
# set GZIP env variable to "-n" to stop gzip from adding timestamps
# to archive headers: https://github.com/NixOS/nixpkgs/issues/86348
setupHook = writeText "setup-hook" ''
export GZIP="-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.
'';
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platforms = lib.platforms.all;
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license = lib.licenses.gpl3Plus;
};
}