distro: Add (distro packages compression).

* distro/packages/base.scm (gzip, bzip2, xz): Move to...
* distro/packages/compression.scm: ... here.  New file.
* Makefile.am (MODULES): Add it.

1 files changed, 133 insertions, 0 deletions

diff --git a/distro/packages/compression.scm b/distro/packages/compression.scm
new file mode 100644
index 0000000000..c1130a925b
--- /dev/null
+++ b/distro/packages/compression.scm
@@ -0,0 +1,133 @@
+;;; 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/")))