[PATCH] Add cereal + sparsehash

[Ricardo Wurmus]

Hi Guix,

I really thought I had sent these patches to the mailing list before,
but it seems that I actually haven’t.

The first patch adds a new “serialization” module for libraries such as
cereal.

The second patch adds “sparsehash” to the “crypto” module.  It’s
probably not the best module for this package — can you suggest any
other location for a hash table library?

~~ Ricardo

>From 19a28042f3839ea23aa13f4973172ca46cfde5f0 Mon Sep 17 00:00:00 2001
From: Ricardo Wurmus <address@hidden>
Date: Mon, 9 Nov 2015 14:46:56 +0100
Subject: [PATCH 1/2] gnu: Add cereal.

* gnu/packages/serialization.scm: New file.
* gnu-system.am (GNU_SYSTEM_MODULES): Add it.
---
 gnu-system.am                  |  1 +
 gnu/packages/serialization.scm | 72 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 73 insertions(+)
 create mode 100644 gnu/packages/serialization.scm

diff --git a/gnu-system.am b/gnu-system.am
index ada903e..c4aac12 100644
--- a/gnu-system.am
+++ b/gnu-system.am
@@ -287,6 +287,7 @@ GNU_SYSTEM_MODULES =                                \
   gnu/packages/scribus.scm                     \
   gnu/packages/sdl.scm                         \
   gnu/packages/search.scm                      \
+  gnu/packages/serialization.scm               \
   gnu/packages/serveez.scm                     \
   gnu/packages/shishi.scm                      \
   gnu/packages/skarnet.scm                     \
diff --git a/gnu/packages/serialization.scm b/gnu/packages/serialization.scm
new file mode 100644
index 0000000..e7198aa
--- /dev/null
+++ b/gnu/packages/serialization.scm
@@ -0,0 +1,72 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2015 Ricardo Wurmus <address@hidden>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU 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.
+;;;
+;;; GNU 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 GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (gnu packages serialization)
+  #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (guix packages)
+  #:use-module (guix download)
+  #:use-module (guix build-system cmake)
+  #:use-module (gnu packages)
+  #:use-module (gnu packages doxygen))
+
+(define-public cereal
+  (package
+    (name "cereal")
+    (version "1.1.2")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "https://github.com/USCiLab/cereal/archive/v";
+                                  version ".tar.gz"))
+              (file-name (string-append name "-" version ".tar.gz"))
+              (sha256
+               (base32
+                "13bvsfzvm7yyp97k20iznq2j14dj3qiczvpq7g8897njw46psq25"))))
+    (build-system cmake-build-system)
+    (arguments
+     `(;; The only included tests are portability tests requiring
+       ;; cross-compilation and boost.  Since we are building cereal on more
+       ;; platforms anyway, there is no compelling reason to build the tests.
+       #:tests? #f
+       #:out-of-source? #f
+       #:phases
+       (modify-phases %standard-phases
+         (delete 'configure)
+         (replace 'build
+          (lambda _
+            (substitute* "doc/doxygen.in"
+              (("@CMAKE_CURRENT_SOURCE_DIR@") "."))
+            (zero? (system* "doxygen" "doc/doxygen.in"))))
+         (replace 'install
+          (lambda* (#:key outputs #:allow-other-keys)
+            (let* ((out     (assoc-ref outputs "out"))
+                   (doc     (string-append out "/share/cereal/docs"))
+                   (include (string-append out "/include/cereal")))
+              (mkdir-p doc)
+              (mkdir-p include)
+              (copy-recursively "include/cereal" include)
+              (copy-recursively "doc/html" doc))
+            #t)))))
+    (native-inputs
+     `(("doxygen" ,doxygen)))
+    (home-page "http://uscilab.github.io/cereal/";)
+    (synopsis "C++11 library for serialization")
+    (description
+     "Cereal is a header-only C++11 serialization library.  Cereal takes
+arbitrary data types and reversibly turns them into different representations,
+such as compact binary encodings, XML, or JSON.")
+    (license license:bsd-3)))
-- 
2.1.0

>From 1f8739407dd3f9715005d55befabf894fa98ee10 Mon Sep 17 00:00:00 2001
From: Ricardo Wurmus <address@hidden>
Date: Tue, 10 Nov 2015 15:41:04 +0100
Subject: [PATCH 2/2] gnu: Add sparsehash.

* gnu/packages/crypto.scm (sparsehash): New variable.
---
 gnu/packages/crypto.scm | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/gnu/packages/crypto.scm b/gnu/packages/crypto.scm
index d3dbd28..08af95f 100644
--- a/gnu/packages/crypto.scm
+++ b/gnu/packages/crypto.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2014 David Thompson <address@hidden>
+;;; Copyright © 2015 Ricardo Wurmus <address@hidden>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -42,3 +43,28 @@
 communication, encryption, decryption, signatures, etc.")
     (license isc)
     (home-page "http://libsodium.org";)))
+
+(define-public sparsehash
+  (package
+    (name "sparsehash")
+    (version "2.0.3")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "https://github.com/sparsehash/sparsehash/";
+                                  "archive/sparsehash-" version ".tar.gz"))
+              (sha256
+               (base32
+                "133szz0ldwch0kd91l0sa57qsnl020njn622szd9cxrjqyjqds85"))))
+    (build-system gnu-build-system)
+    (synopsis "Memory-efficient hashtable implementations")
+    (description
+     "This library contains several hash-map implementations, similar in API
+to SGI's @code{hash_map} class, but with different performance
+characteristics.  @code{sparse_hash_map} uses very little space overhead, 1-2
+bits per entry.  @code{dense_hash_map} is very fast, particulary on lookup.
address@hidden and @code{dense_hash_set} are the set versions of these
+routines.  All these implementation use a hashtable with internal quadratic
+probing.  This method is space-efficient -- there is no pointer overhead --
+and time-efficient for good hash functions.")
+    (home-page "https://github.com/sparsehash/sparsehash";)
+    (license bsd-3)))
-- 
2.1.0