GNU bug report logs - #31999
[PATCH 1/7] gnu: Add volume-key.

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From: Pierre Neidhardt <ambrevar <at> gmail.com>
To: 31999 <at> debbugs.gnu.org
Subject: [bug#31999] [PATCH 3/7] gnu: Add libbytesize.
Date: Thu, 28 Jun 2018 23:35:23 +0200

* gnu/package/c.scm (libbytesize): New variable.
---
 gnu/packages/c.scm | 75 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 75 insertions(+)

diff --git a/gnu/packages/c.scm b/gnu/packages/c.scm
index bc6042874..0398bb04d 100644
--- a/gnu/packages/c.scm
+++ b/gnu/packages/c.scm
@@ -2,6 +2,7 @@
 ;;; Copyright © 2016, 2018 Ludovic Courtès <ludo <at> gnu.org>
 ;;; Copyright © 2016, 2017 Ricardo Wurmus <rekado <at> elephly.net>
 ;;; Copyright © 2018 Tobias Geerinckx-Rice <me <at> tobias.gr>
+;;; Copyright © 2018 Pierre Neidhardt <ambrevar <at> gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -22,6 +23,7 @@
   #:use-module ((guix licenses) #:prefix license:)
   #:use-module (guix packages)
   #:use-module (guix download)
+  #:use-module (guix git-download)
   #:use-module (guix build-system gnu)
   #:use-module (guix build-system trivial)
   #:use-module (gnu packages bootstrap)
@@ -30,6 +32,12 @@
   #:use-module (gnu packages perl)
   #:use-module (gnu packages texinfo)
   #:use-module (gnu packages guile)
+  #:use-module (gnu packages multiprecision)
+  #:use-module (gnu packages pcre)
+  #:use-module (gnu packages python)
+  #:use-module (gnu packages autotools)
+  #:use-module (gnu packages gettext)
+  #:use-module (gnu packages pkg-config)
   #:use-module (srfi srfi-1))
 
 (define-public tcc
@@ -166,3 +174,70 @@ compiler while still keeping it small, simple, fast and understandable.")
     ;; PCC incorporates code under various BSD licenses; for new code bsd-2 is
     ;; preferred.  See http://pcc.ludd.ltu.se/licenses/ for more details.
     (license (list license:bsd-2 license:bsd-3))))
+
+(define-public libbytesize
+  (package
+    (name "libbytesize")
+    (version "1.3")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/storaged-project/libbytesize")
+                    (commit version)))
+              (file-name (string-append name "-" version "-checkout"))
+              (sha256
+               (base32
+                "1ys5d8rya8x4q34gn1hr96z7797s9gdzah0y0d7g84x5x6k50p30"))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("autoconf" ,autoconf)
+       ("automake" ,automake)
+       ("libtool" ,libtool)
+       ("gettext" ,gettext-minimal)
+       ("pkg-config" ,pkg-config)
+       ("python" ,python)
+       ("python2" ,python-2) ; For tests.
+       ("python2-six" ,python2-six) ; For tests.
+       ("python2-polib" ,python2-polib) ; For tests.
+       ))
+    (inputs
+     `(("mpfr" ,mpfr)
+       ("pcre" ,pcre)))
+    (arguments
+     `(#:tests? #f ; One test fails because busctl (systemd only?) and
+                   ; python2-pocketlint are missing.
+       #:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'autogen
+           (lambda _
+             (invoke ("sh" "autogen.sh")))))))
+    (home-page "https://github.com/storaged-project/libbytesize")
+    (synopsis "Tiny C library for working with arbitrary big sizes in bytes")
+    (description
+     "The goal of this project is to provide a tiny library that would
+facilitate the common operations with sizes in bytes.  Many projects need to
+work with sizes in bytes (be it sizes of storage space, memory...) and all of
+them need to deal with the same issues like:
+
+@itemize
+@item How to get a human-readable string for the given size?
+@item How to store the given size so that no significant information is lost?
+@item If we store the size in bytes, what if the given size gets over the
+MAXUINT64 value?
+@item How to interpret sizes entered by users according to their locale and
+typing conventions?
+@item How to deal with the decimal/binary units (MB vs. MiB) ambiguity?
+@end itemize
+
+Some projects have all the above questions/concerns addressed well, some have
+them addressed partially some simply don't care.  However, having (partial)
+solutions implemented in multiple places every time with a different set of
+bugs, differences in behaviour and this or that missing is a waste of time and
+effort.  We need a generally usable solution that could be used by every
+project that needs to deal with sizes in bytes.
+
+Since the goal is to provide a solution as much generally usable as possible
+the implementation has to be small, fast and written in a language that can be
+easily interfaced from other languages.  The current obvious choice is the C
+language with thin bindings for other languages.")
+    (license license:lgpl2.1+)))
-- 
2.17.1

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