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;;; Guix --- Nix package management from Guile. -*- coding: utf-8 -*-
;;; Copyright (C) 2012 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of Guix.
;;;
;;; Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (distro packages compression)
#:use-module (guix packages)
#:use-module (guix http)
#:use-module (guix build-system gnu))
(define-public gzip
(package
(name "gzip")
(version "1.5")
(source (origin
(method http-fetch)
(uri (string-append "http://ftp.gnu.org/gnu/gzip/gzip-"
version ".tar.gz"))
(sha256
(base32
"18rm80kar7n016g8bsyy1a3zk50i2826xdgs874yh64rzj7nxmdm"))))
(build-system gnu-build-system)
(synopsis "Gzip, the GNU zip compression program")
(arguments
;; FIXME: The test suite wants `less', and optionally Perl.
'(#:tests? #f))
(description
"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.")
(license "GPLv3+")
(home-page "http://www.gnu.org/software/gzip/")))
(define-public bzip2
(let ((fix-man-dir
;; Move man pages to $out/share/.
'(lambda* (#:key outputs #:allow-other-keys)
(with-directory-excursion (assoc-ref outputs "out")
(mkdir "share")
(rename-file "man" "share"))))
(build-shared-lib
;; Build a shared library.
'(lambda* (#:key inputs #:allow-other-keys)
(zero? (system* "make" "-f" "Makefile-libbz2_so"))))
(install-shared-lib
'(lambda* (#:key outputs #:allow-other-keys)
(let* ((out (assoc-ref outputs "out"))
(libdir (string-append out "/lib")))
(for-each (lambda (file)
(let ((base (basename file)))
(format #t "installing `~a' to `~a'~%"
base libdir)
(copy-file file
(string-append libdir "/" base))))
(find-files "." "^libbz2\\.so"))))))
(package
(name "bzip2")
(version "1.0.6")
(source (origin
(method http-fetch)
(uri (string-append "http://www.bzip.org/" version "/bzip2-"
version ".tar.gz"))
(sha256
(base32
"1kfrc7f0ja9fdn6j1y6yir6li818npy6217hvr3wzmnmzhs8z152"))))
(build-system gnu-build-system)
(arguments
`(#:modules ((guix build gnu-build-system)
(guix build utils)
(srfi srfi-1))
#:phases
(alist-cons-before
'build 'build-shared-lib ,build-shared-lib
(alist-cons-after
'install 'fix-man-dir ,fix-man-dir
(alist-cons-after
'install 'install-shared-lib ,install-shared-lib
(alist-delete 'configure %standard-phases))))
#:make-flags (list (string-append "PREFIX="
(assoc-ref %outputs "out")))))
(synopsis "high-quality data compression program")
(description
"bzip2 is a freely available, patent free (see below), high-quality data
compressor. It typically compresses files to within 10% to 15% of the best
available techniques (the PPM family of statistical compressors), whilst
being around twice as fast at compression and six times faster at
decompression.")
(license "BSD-style")
(home-page "http://www.bzip.org/"))))
(define-public xz
(package
(name "xz")
(version "5.0.4")
(source (origin
(method http-fetch)
(uri (string-append "http://tukaani.org/xz/xz-" version
".tar.gz"))
(sha256
(base32
"1dl35ca8fdss9z2d6y234gxh24ixq904xksizrjmjr5dimwhax6n"))))
(build-system gnu-build-system)
(synopsis
"XZ, general-purpose data compression software, successor of LZMA")
(description
"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 '("GPLv2+" "LGPLv2.1+")) ; bits of both
(home-page "http://tukaani.org/xz/")))
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