nixpkgs/pkgs/tools/compression/xz/default.nix
2022-10-03 15:51:55 +10:00

76 lines
2.3 KiB
Nix

{ lib, stdenv, fetchurl
, enableStatic ? stdenv.hostPlatform.isStatic
, writeScript
}:
# 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 = "xz";
version = "5.2.7";
src = fetchurl {
url = "https://tukaani.org/xz/xz-${version}.tar.bz2";
sha256 = "tl8dDCcI5XcW9N0iFpiac4R6xv20Fo/86xVXZ+Irg0s=";
};
strictDeps = true;
outputs = [ "bin" "dev" "out" "man" "doc" ];
configureFlags = lib.optional enableStatic "--disable-shared";
enableParallelBuilding = true;
doCheck = true;
preCheck = ''
# Tests have a /bin/sh dependency...
patchShebangs tests
'';
# In stdenv-linux, prevent a dependency on bootstrap-tools.
preConfigure = "CONFIG_SHELL=/bin/sh";
postInstall = "rm -rf $out/share/doc";
passthru = {
updateScript = writeScript "update-xz" ''
#!/usr/bin/env nix-shell
#!nix-shell -i bash -p curl pcre common-updater-scripts
set -eu -o pipefail
# Expect the text in format of '>xz-5.2.6.tar.bz2</a>'
# We pick first match where a stable release goes first.
new_version="$(curl -s https://tukaani.org/xz/ |
pcregrep -o1 '>xz-([0-9.]+)[.]tar[.]bz2</a>')"
update-source-version ${pname} "$new_version"
'';
};
meta = with lib; {
homepage = "https://tukaani.org/xz/";
description = "A general-purpose data compression software, successor of LZMA";
longDescription =
'' XZ Utils is free general-purpose data compression software with high
compression ratio. XZ Utils were written for POSIX-like systems,
but also work on some not-so-POSIX systems. XZ Utils are the
successor to LZMA Utils.
The core of the XZ Utils compression code is based on LZMA SDK, but
it has been modified quite a lot to be suitable for XZ Utils. The
primary compression algorithm is currently LZMA2, which is used
inside the .xz container format. With typical files, XZ Utils
create 30 % smaller output than gzip and 15 % smaller output than
bzip2.
'';
license = with licenses; [ gpl2Plus lgpl21Plus ];
maintainers = with maintainers; [ sander ];
platforms = platforms.all;
};
}