[PATCH]: Add pixz.

[PATCH]: Add pixz.

[Ben Woodcroft]

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Ta.

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From 1546ab1d5f48871a23521f7629aed1493a3dcbf6 Mon Sep 17 00:00:00 2001
From: Ben Woodcroft <donttrustben@gmail.com>
Date: Mon, 25 Jan 2016 08:31:14 +1000
Subject: [PATCH] gnu: Add pixz.

* gnu/packages/compression.scm (pixz): New variable.
---
 gnu/packages/compression.scm | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/gnu/packages/compression.scm b/gnu/packages/compression.scm
index fd3a9ce..0f27fa9 100644
--- a/gnu/packages/compression.scm
+++ b/gnu/packages/compression.scm
@@ -8,6 +8,7 @@
 ;;; Copyright © 2015 Leo Famulari <leo@famulari.name>
 ;;; Copyright © 2015 Jeff Mickey <j@codemac.net>
 ;;; Copyright © 2015 Efraim Flashner <efraim@flashner.co.il>
+;;; Copyright © 2016 Ben Woodcroft <donttrustben@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -32,8 +33,10 @@
   #:use-module (guix git-download)
   #:use-module (guix build-system gnu)
   #:use-module (guix build-system perl)
+  #:use-module (gnu packages backup)
   #:use-module (gnu packages base)
   #:use-module (gnu packages perl)
+  #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages valgrind)
   #:use-module ((srfi srfi-1) #:select (last)))
 
@@ -659,3 +662,29 @@ multiple processors and multiple cores when compressing data.")
     ;; Things under zopfli/ are under ASL2.0, but 4 files at the top-level,
     ;; written by Mark Adler, are under another non-copyleft license.
     (license license:asl2.0)))
+
+(define-public pixz
+  (package
+    (name "pixz")
+    (version "1.0.6")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "https://github.com/vasi/pixz/releases/download/v" version
+                    "/pixz-" version ".tar.xz"))
+              (sha256
+               (base32
+                "1s3j7zw6j5zi3fhdxg287ndr3wf6swac7z21mqd1pyiln530gi82"))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("pkg-config" ,pkg-config)
+       ("libarchive" ,libarchive)))
+    (home-page "https://github.com/vasi/pixz")
+    (synopsis "Parallel indexing implementation of LZMA")
+    (description
+     "The existing XZ Utils provide great compression in the .xz file format,
+but they produce just one big block of compressed data.  Pixz instead produces
+a collection of smaller blocks which makes random access to the original data
+possible and can compress in parallel.  This is especially useful for large
+tarballs.")
+    (license license:bsd-2)))
-- 
2.6.3

Re: [PATCH]: Add pixz.

[Ricardo Wurmus]

Looks good to me.  Thank you.

(I also checked the license.  The FreeBSD/BSD-2 license is explicitly
mentioned in the man page, and the text of the license is part of the
repository.  This should be okay, even though the source files
themselves do not have license headers.)

~~ Ricardo

Re: [PATCH]: Add pixz.

[Ben Woodcroft]

On 25/01/16 18:22, Ricardo Wurmus wrote:
> Looks good to me.  Thank you.
Really? That's the first time you've had no comments I think. Excellent, 
and thanks.

Pushed just now.