code:
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2012, 2013, 2017 Ludovic Courtès <ludo@gnu.org>
;;;
;;; 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 gperf)
  #:use-module (guix licenses)
  #:use-module (guix packages)
  #:use-module (guix download)
  #:use-module (guix build-system gnu))

(define-public gperf
  (package
    (name "gperf")
    (version "3.1")
    (source
     (origin
      (method url-fetch)
      (uri (string-append "mirror://gnu/gperf/gperf-"
                          version ".tar.gz"))
      (sha256
       (base32
        "1qispg6i508rq8pkajh26cznwimbnj06wq9sd85vg95v8nwld1aq"))))
    (build-system gnu-build-system)
    (arguments '(#:parallel-tests? #f))
    (home-page "https://www.gnu.org/software/gperf/")
    (synopsis "Perfect hash function generator")
    (description
     "gperf is a perfect hash function generator.  For a given list of
strings, it produces a hash function and hash table in C or C++ code.  That
the hash function is perfect means that no collisions can exist and that
look-ups can be made by single string comparisons.")
    (license gpl3+)))

(define-public gperf-3.0
  ;; This older version would use 'unsigned int' in its generated lookup
  ;; functions whereas 3.1 uses 'size_t', which causes breakage such as
  ;; <https://github.com/wingo/elogind/issues/8>.
  (package
    (inherit gperf)
    (version "3.0.4")
    (source (origin
              (method url-fetch)
              (uri (string-append "mirror://gnu/gperf/gperf-"
                                  version ".tar.gz"))
              (sha256
               (base32
                "0gnnm8iqcl52m8iha3sxrzrl9mcyhg7lfrhhqgdn4zj00ji14wbn"))))))

license: mit


code:
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.org>
;;; Copyright © 2013 Mark H Weaver <mhw@netris.org>
;;;
;;; 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 gprolog)
  #:use-module (guix download)
  #:use-module (guix licenses)
  #:use-module (guix packages)
  #:use-module (guix build-system gnu)
  #:use-module (srfi srfi-1))

(define-public gprolog
  (package
    (name "gprolog")
    (version "1.4.5")
    (source
      (origin
        (method url-fetch)
        ;; Recent versions are not hosted on the GNU mirrors.
        (uri (list (string-append "http://gprolog.org/gprolog-" version
                                  ".tar.gz")
                   (string-append "mirror://gnu/gprolog/gprolog-" version
                                  ".tar.gz")))
        (sha256
         (base32
          "0z4cc42n3k6i35b8mr816iwsvrpxshw6d7dgz6s2h1hy0l7g1p5z"))))
    (build-system gnu-build-system)
    (arguments
     `(#:configure-flags
       (list (string-append
              "--with-install-dir=" %output "/share/gprolog"))
       #:phases
       (modify-phases %standard-phases
         (add-before 'configure 'change-dir-n-fix-shells
           (lambda _
             (chdir "src")
             (substitute* "configure"
               (("-/bin/sh")  (string-append "-"  (which "sh")))
               (("= /bin/sh") (string-append "= " (which "sh"))))
             #t)))))
    (home-page "https://www.gnu.org/software/gprolog/")
    (synopsis "Prolog compiler")
    (description
     "GNU Prolog is a standards-compliant Prolog compiler with constraint
solving over finite domains.  It accepts Prolog+ constraint programs and
produces a compiled, native binary which can function in a stand-alone
manner.  It also features an interactive interpreter.")
    (license (list gpl2+ lgpl3+))

    ;; See 'configure' for the list of supported architectures.
    (supported-systems (fold delete
                             %supported-systems
                             '("armhf-linux" "mips64el-linux")))))


code:
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014, 2015 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2016, 2017, 2018 Efraim Flashner <efraim@flashner.co.il>
;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
;;; Copyright © 2018 Mathieu Othacehe <m.othacehe@gmail.com>
;;;
;;; 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 gps)
  #:use-module (guix packages)
  #:use-module (guix download)
  #:use-module (guix git-download)
  #:use-module (guix build-system gnu)
  #:use-module ((guix licenses) #:prefix license:)
  #:use-module (gnu packages)
  #:use-module (gnu packages base)
  #:use-module (gnu packages pkg-config)
  #:use-module (gnu packages compression)
  #:use-module (gnu packages databases)
  #:use-module (gnu packages docbook)
  #:use-module (gnu packages image)
  #:use-module (gnu packages xml)
  #:use-module (gnu packages gtk)
  #:use-module (gnu packages qt))

(define-public gpsbabel
  (package
    (name "gpsbabel")
    (version "1.5.4")
    (source (origin
              (method url-fetch)
              ;; XXX: Downloads from gpsbabel.org are hidden behind a POST, so
              ;; get it from elsewhere.
              (uri (string-append
                    "mirror://debian/pool/main/g/gpsbabel/gpsbabel_"
                    version ".orig.tar.gz"))
              (sha256
               (base32
                "19hykxhyl567gf8qcrl33qhv95w0g4vxw9r3h9b8d8plx9bnaf8l"))
              (patches (search-patches
                        "gpsbabel-minizip.patch"
                        ;; XXX: Remove this patch on the next release.
                        "gpsbabel-qstring.patch"))
              (modules '((guix build utils)))
              (snippet
               '(begin
                  ;; Delete files under GPL-compatible licences but never used
                  ;; on GNU systems, rather than bloating the LICENSE field.
                  (delete-file "gui/serial_mac.cc")           ; Apple MIT
                  (delete-file "mingw/include/ddk/hidsdi.h") ; public domain
                  #t))))
    (build-system gnu-build-system)
    ;; TODO: "make doc" requires Docbook & co.
    (arguments
     `(#:configure-flags
       '("--with-zlib=system"
         ;; XXX Use -fPIC to work around build problems with Qt, GCC 5, and
         ;; recent binutils:
         ;; https://codereview.qt-project.org/#/c/111787/
         "CXXFLAGS=-std=gnu++11 -fPIC")
       ;; On i686, 'raymarine.test' fails because of a rounding error:
       ;; <http://hydra.gnu.org/build/133040>.  As a workaround, disable tests
       ;; on these platforms.
       ;; FIXME: On x86_64 with -std=gnu++11 tests also fail due to rounding
       ;; error.
       #:tests? #f))
    (inputs
     `(("expat" ,expat)
       ("zlib" ,zlib)
       ("qtbase" ,qtbase)
       ("qttools" ,qttools)))
    (native-inputs
     `(("which" ,which)
       ("libxml2" ,libxml2)))              ;'xmllint' needed for the KML tests
    (home-page "https://www.gpsbabel.org/")
    (synopsis "Convert and exchange data with GPS and map programs")
    (description
     "GPSBabel converts waypoints, tracks, and routes between hundreds of
popular GPS receivers and mapping programs.  It contains extensive data
manipulation abilities making it a convenient for server-side processing or as
the back-end for other tools.  It does not convert, transfer, send, or
manipulate maps.")
    (license (list license:expat        ; shapelib/*.[ch]
                   license:gpl2+))))    ; everything else

(define-public gpscorrelate
  ;; This program is "lightly maintained", so to speak, so we end up taking it
  ;; directly from its Git repo.
  (let ((commit "365f6e1b3f"))
    (package
      (name "gpscorrelate")
      (version (string-append "1.6.1." commit))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/freefoote/gpscorrelate")
                      (commit commit)))
                (file-name (git-file-name name version))
                (sha256
                 (base32
                  "006a6l8p38a4h7y2959sqrmjjn29d8pd50zj9nypcp5ph18nybjb"))))
      (build-system gnu-build-system)
      (arguments
       `(#:phases
         (modify-phases %standard-phases
           (replace 'configure
             (lambda* (#:key inputs outputs #:allow-other-keys)
               ;; This is a rudimentary build system.
               (substitute* "Makefile"
                 (("prefix[[:blank:]]*=.*$")
                  (string-append "prefix = " (assoc-ref outputs "out")
                                 "\n")))
               #t)))
         #:tests? #f))
      (inputs
       `(("gtk+" ,gtk+-2)
         ("libxml2" ,libxml2)
         ("exiv2" ,exiv2)))
      (native-inputs
       `(("pkg-config" ,pkg-config)
         ("docbook-xml" ,docbook-xml)
         ("docbook-xsl" ,docbook-xsl)
         ("libxslt" ,libxslt)))
      (home-page "http://freefoote.dview.net/linux/gpscorrelate")
      (synopsis "GPS photo correlation tool to geo-localize images")
      (description
       "GPS Correlate is a program to match a recorded GPS track with the EXIF
tags in digital camera photos, and update the EXIF tags with the location that
the photo was taken.  It does this by using the timestamp in the photo and
finding a data point in the GPS track that matches, or interpolating a point
between two other data points.")
      (license license:gpl2+))))

(define-public gama
  (package
    (name "gama")
    (version "2.00")
    (source
      (origin
        (method url-fetch)
        (uri (string-append "mirror://gnu/gama/gama-"
                            version ".tar.gz"))
        (sha256
         (base32
          "1p51jlzr6qqqvzx0sq8j7fxqfij62c3pjcsb53vgx0jx0qdqyjba"))))
    (build-system gnu-build-system)
    (arguments '(#:parallel-tests? #f)) ; race condition
    (native-inputs
     `(("libxml2" ,libxml2)))
    (inputs
     `(("expat" ,expat)
       ("sqlite" ,sqlite)))
    (home-page "https://www.gnu.org/software/gama")
    (synopsis "Adjustment of geodetic networks")
    (description
     "GNU Gama is a program for the adjustment of geodetic networks.  It is
useful in measurements where Global Positioning System (GPS) is not available,
such as underground.  It features the ability to adjust in local Cartesian
coordinates as well as partial support for adjustments in global coordinate systems.")
    (license license:gpl3+)))

(define-public gpxsee
  (package
    (name "gpxsee")
    (version "4.19")
    (source (origin
              (method url-fetch)
              (uri
               (string-append "https://github.com/tumic0/GPXSee/archive/"
                              version ".tar.gz"))
              (file-name (string-append name "-" version ".tar.gz"))
              (sha256
               (base32
                "00j0gjldw1kn3i45dppld1pz8r4s1g7lw89k7gfvvqbjjyjih1wg"))))
    (build-system gnu-build-system)
    (arguments
     '(#:phases
       (modify-phases %standard-phases
         (replace 'configure
           ;; Use lrelease to convert TS translation files into QM files.
           (lambda* (#:key inputs outputs #:allow-other-keys)
             (for-each (lambda (file)
                         (invoke "lrelease" file))
                       (find-files "lang" "\\.ts"))
             (substitute* "src/config.h"
               (("/usr/share/gpxsee")
                (string-append
                 (assoc-ref outputs "out") "/share/gpxsee")))
             (invoke "qmake"
                     (string-append "PREFIX="
                                    (assoc-ref outputs "out")))))
         (replace 'install
           (lambda* (#:key outputs #:allow-other-keys)
             (let* ((out (assoc-ref outputs "out"))
                    (share (string-append out "/share/gpxsee/")))
               (install-file "GPXSee" (string-append out "/bin/GPXSee"))
               (install-file "pkg/maps.txt" share))
             #t)))))
    (inputs
     `(("qtbase" ,qtbase)))
    (native-inputs
     `(("qttools" ,qttools)))
    (home-page "http://www.gpxsee.org")
    (synopsis "GPX file viewer and analyzer")
    (description
     "GPXSee is a Qt-based GPS log file viewer and analyzer that supports GPX,
TCX, KML, FIT, IGC and NMEA files.")
    (license license:gpl3)))


code:
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2017, 2018 Ricardo Wurmus <rekado@elephly.net>
;;; Copyright © 2018 Joshua Sierles, Nextjournal <joshua@nextjournal.com>
;;; Copyright © 2018 Tobias Geerinckx-Rice <me@tobias.gr>
;;;
;;; 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 graph)
  #:use-module (guix download)
  #:use-module (guix git-download)
  #:use-module (guix packages)
  #:use-module (guix build-system gnu)
  #:use-module (guix build-system python)
  #:use-module (guix build-system r)
  #:use-module ((guix licenses) #:prefix license:)
  #:use-module (gnu packages)
  #:use-module (gnu packages gcc)
  #:use-module (gnu packages bioconductor)
  #:use-module (gnu packages bioinformatics)
  #:use-module (gnu packages compression)
  #:use-module (gnu packages cran)
  #:use-module (gnu packages graphviz)
  #:use-module (gnu packages maths)
  #:use-module (gnu packages multiprecision)
  #:use-module (gnu packages pkg-config)
  #:use-module (gnu packages python)
  #:use-module (gnu packages python-web)
  #:use-module (gnu packages statistics)
  #:use-module (gnu packages time)
  #:use-module (gnu packages xml))

(define-public igraph
  (package
    (name "igraph")
    (version "0.7.1")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "http://igraph.org/nightly/get/c/igraph-"
                           version ".tar.gz"))
       (sha256
        (base32
         "1pxh8sdlirgvbvsw8v65h6prn7hlm45bfsl1yfcgd6rn4w706y6r"))))
    (build-system gnu-build-system)
    (arguments
     `(#:configure-flags
       (list "--with-external-glpk"
             "--with-external-blas"
             "--with-external-lapack")))
    (inputs
     `(("gmp" ,gmp)
       ("glpk" ,glpk)
       ("libxml2" ,libxml2)
       ("lapack" ,lapack)
       ("openblas" ,openblas)
       ("zlib" ,zlib)))
    (home-page "http://igraph.org")
    (synopsis "Network analysis and visualization")
    (description
     "This package provides a library for the analysis of networks and graphs.
It can handle large graphs very well and provides functions for generating
random and regular graphs, graph visualization, centrality methods and much
more.")
    (license license:gpl2+)))

(define-public python-igraph
  (package (inherit igraph)
    (name "python-igraph")
    (version "0.7.1.post6")
    (source
     (origin
       (method url-fetch)
       (uri (pypi-uri "python-igraph" version))
       (sha256
        (base32
         "0xp61zz710qlzhmzbfr65d5flvsi8zf2xy78s6rsszh719wl5sm5"))))
    (build-system python-build-system)
    (arguments '())
    (inputs
     `(("igraph" ,igraph)))
    (native-inputs
     `(("pkg-config" ,pkg-config)))
    (home-page "http://pypi.python.org/pypi/python-igraph")
    (synopsis "Python bindings for the igraph network analysis library")))

(define-public r-igraph
  (package
    (name "r-igraph")
    (version "1.2.2")
    (source
     (origin
       (method url-fetch)
       (uri (cran-uri "igraph" version))
       (sha256
        (base32
         "1bggm7b8v3bh7q2589w26qvd7sgs69m4qiij7d0rbm0ykkgxm8lx"))))
    (build-system r-build-system)
    (native-inputs
     `(("gfortran" ,gfortran)))
    (inputs
     `(("gmp" ,gmp)
       ("glpk" ,glpk)
       ("libxml2" ,libxml2)
       ("zlib" ,zlib)))
    (propagated-inputs
     `(("r-magrittr" ,r-magrittr)
       ("r-matrix" ,r-matrix)
       ("r-pkgconfig" ,r-pkgconfig)))
    (home-page "http://igraph.org")
    (synopsis "Network analysis and visualization")
    (description
     "This package provides routines for simple graphs and network analysis.
It can handle large graphs very well and provides functions for generating
random and regular graphs, graph visualization, centrality methods and much
more.")
    (license license:gpl2+)))

(define-public r-diffusionmap
  (package
    (name "r-diffusionmap")
    (version "1.1-0.1")
    (source
     (origin
       (method url-fetch)
       (uri (cran-uri "diffusionMap" version))
       (sha256
        (base32
         "11l4kbciawvli5nlsi4qaf8afmgk5xgqiqpdyhvaqri5mx0zhk5j"))))
    (properties `((upstream-name . "diffusionMap")))
    (build-system r-build-system)
    (propagated-inputs
     `(("r-igraph" ,r-igraph)
       ("r-matrix" ,r-matrix)
       ("r-scatterplot3d" ,r-scatterplot3d)))
    (home-page "https://www.r-project.org")
    (synopsis "Diffusion map")
    (description "This package implements the diffusion map method of data
parametrization, including creation and visualization of diffusion maps,
clustering with diffusion K-means and regression using the adaptive regression
model.")
    (license license:gpl2)))

(define-public r-rgraphviz
  (package
    (name "r-rgraphviz")
    (version "2.24.0")
    (source
     (origin
       (method url-fetch)
       (uri (bioconductor-uri "Rgraphviz" version))
       (sha256
        (base32
         "1037hzfxxcn46w6y88wm3kk2nixj0s8bk0hkmnshpxih3kmnvqby"))))
    (properties `((upstream-name . "Rgraphviz")))
    (build-system r-build-system)
    ;; FIXME: Rgraphviz bundles the sources of an older variant of
    ;; graphviz.  It does not build with the latest version of graphviz, so
    ;; we do not add graphviz to the inputs.
    (inputs `(("zlib" ,zlib)))
    (propagated-inputs
     `(("r-graph" ,r-graph)))
    (native-inputs
     `(("pkg-config" ,pkg-config)))
    (home-page "http://bioconductor.org/packages/Rgraphviz")
    (synopsis "Plotting capabilities for R graph objects")
    (description
     "This package interfaces R with the graphviz library for plotting R graph
objects from the @code{graph} package.")
    (license license:epl1.0)))

(define-public r-rbiofabric
  (let ((commit "666c2ae8b0a537c006592d067fac6285f71890ac")
        (revision "1"))
    (package
      (name "r-rbiofabric")
      (version (string-append "0.3-" revision "." (string-take commit 7)))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/wjrl/RBioFabric.git")
                      (commit commit)))
                (file-name (string-append name "-" version "-checkout"))
                (sha256
                 (base32
                  "1yahqrcrqpbcywv73y9rlmyz8apdnp08afialibrr93ch0p06f8z"))))
      (build-system r-build-system)
      (propagated-inputs
       `(("r-igraph" ,r-igraph)))
      (home-page "http://www.biofabric.org/")
      (synopsis "BioFabric network visualization")
      (description "This package provides an implementation of the function
@code{bioFabric} for creating scalable network digrams where nodes are
represented by horizontal lines, and edges are represented by vertical
lines.")
      (license license:expat))))

(define-public python-plotly
  (package
    (name "python-plotly")
    (version "2.4.1")
    (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "plotly" version))
        (sha256
         (base32
          "0s9gk2fl53x8wwncs3fwii1vzfngr0sskv15v3mpshqmrqfrk27m"))))
    (build-system python-build-system)
    (arguments
     '(#:tests? #f)) ; The tests are not distributed in the release
    (propagated-inputs
     `(("python-decorator" ,python-decorator)
       ("python-nbformat" ,python-nbformat)
       ("python-pandas" ,python-pandas)
       ("python-pytz" ,python-pytz)
       ("python-requests" ,python-requests)
       ("python-six" ,python-six)))
    (home-page "https://plot.ly/python/")
    (synopsis "Interactive plotting library for Python")
    (description "Plotly's Python graphing library makes interactive,
publication-quality graphs online.  Examples of how to make line plots, scatter
plots, area charts, bar charts, error bars, box plots, histograms, heatmaps,
subplots, multiple-axes, polar charts, and bubble charts. ")
    (license license:expat)))

(define-public python2-plotly
  (package-with-python2 python-plotly))


code:
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2015, 2016 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2015 Tomáš Čech <sleep_walker@gnu.org>
;;; Copyright © 2016 Leo Famulari <leo@famulari.name>
;;; Copyright © 2016, 2017 Ricardo Wurmus <rekado@elephly.net>
;;; Copyright © 2016, 2018 Efraim Flashner <efraim@flashner.co.il>
;;; Copyright © 2016 Andreas Enge <andreas@enge.fr>
;;; Copyright © 2017 Manolis Fragkiskos Ragkousis <manolis837@gmail.com>
;;; Copyright © 2017, 2018 Ben Woodcroft <donttrustben@gmail.com>
;;; Copyright © 2017, 2018 Tobias Geerinckx-Rice <me@tobias.gr>
;;; Copyright © 2018 Mathieu Othacehe <m.othacehe@gmail.com>
;;; Copyright © 2018 Alex Kost <alezost@gmail.com>
;;; Copyright © 2018 Kei Kebreau <kkebreau@posteo.net>
;;;
;;; 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 graphics)
  #:use-module (gnu packages)
  #:use-module (gnu packages algebra)
  #:use-module (gnu packages audio)
  #:use-module (gnu packages autotools)
  #:use-module (gnu packages bash)
  #:use-module (gnu packages bison)
  #:use-module (gnu packages boost)
  #:use-module (gnu packages check)
  #:use-module (gnu packages compression)
  #:use-module (gnu packages documentation)
  #:use-module (gnu packages flex)
  #:use-module (gnu packages fonts)
  #:use-module (gnu packages fontutils)
  #:use-module (gnu packages ghostscript)
  #:use-module (gnu packages gl)
  #:use-module (gnu packages glib)
  #:use-module (gnu packages gnome)
  #:use-module (gnu packages graphviz)
  #:use-module (gnu packages gtk)
  #:use-module (gnu packages haskell)
  #:use-module (gnu packages image)
  #:use-module (gnu packages imagemagick)
  #:use-module (gnu packages jemalloc)
  #:use-module (gnu packages multiprecision)
  #:use-module (gnu packages pdf)
  #:use-module (gnu packages perl)
  #:use-module (gnu packages photo)
  #:use-module (gnu packages pkg-config)
  #:use-module (gnu packages pth)
  #:use-module (gnu packages pulseaudio)  ; libsndfile, libsamplerate
  #:use-module (gnu packages python)
  #:use-module (gnu packages qt)
  #:use-module (gnu packages readline)
  #:use-module (gnu packages sdl)
  #:use-module (gnu packages swig)
  #:use-module (gnu packages video)
  #:use-module (gnu packages xml)
  #:use-module (gnu packages xorg)
  #:use-module (guix build-system cmake)
  #:use-module (guix build-system gnu)
  #:use-module (guix build-system python)
  #:use-module (guix download)
  #:use-module (guix git-download)
  #:use-module ((guix licenses) #:prefix license:)
  #:use-module (guix packages)
  #:use-module (guix utils))

(define-public blender
  (package
    (name "blender")
    (version "2.79b")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://download.blender.org/source/"
                                  "blender-" version ".tar.gz"))
              (sha256
               (base32
                "1g4kcdqmf67srzhi3hkdnr4z1ph4h9sza1pahz38mrj998q4r52c"))))
    (build-system cmake-build-system)
    (arguments
      (let ((python-version (version-major+minor (package-version python))))
       `(;; Test files are very large and not included in the release tarball.
         #:tests? #f
         #:configure-flags
         (list "-DWITH_CODEC_FFMPEG=ON"
               "-DWITH_CODEC_SNDFILE=ON"
               "-DWITH_CYCLES=ON"
               "-DWITH_DOC_MANPAGE=ON"
               "-DWITH_FFTW3=ON"
               "-DWITH_GAMEENGINE=ON"
               "-DWITH_IMAGE_OPENJPEG=ON"
               "-DWITH_INPUT_NDOF=ON"
               "-DWITH_INSTALL_PORTABLE=OFF"
               "-DWITH_JACK=ON"
               "-DWITH_MOD_OCEANSIM=ON"
               "-DWITH_PLAYER=ON"
               "-DWITH_PYTHON_INSTALL=OFF"
               "-DWITH_PYTHON_INSTALL=OFF"
               "-DWITH_SYSTEM_OPENJPEG=ON"
               (string-append "-DPYTHON_LIBRARY=python" ,python-version "m")
               (string-append "-DPYTHON_LIBPATH=" (assoc-ref %build-inputs "python")
                              "/lib")
               (string-append "-DPYTHON_INCLUDE_DIR=" (assoc-ref %build-inputs "python")
                              "/include/python" ,python-version "m")
               (string-append "-DPYTHON_VERSION=" ,python-version))
         #:phases
         (modify-phases %standard-phases
           (add-after 'unpack 'fix-broken-import
             (lambda _
               (substitute* "release/scripts/addons/io_scene_fbx/json2fbx.py"
                 (("import encode_bin") "from . import encode_bin"))
               #t))
           (add-after 'set-paths 'add-ilmbase-include-path
             (lambda* (#:key inputs #:allow-other-keys)
               ;; OpenEXR propagates ilmbase, but its include files do not appear
               ;; in the CPATH, so we need to add "$ilmbase/include/OpenEXR/" to
               ;; the CPATH to satisfy the dependency on "half.h".
               (setenv "CPATH"
                       (string-append (assoc-ref inputs "ilmbase")
                                      "/include/OpenEXR"
                                      ":" (or (getenv "CPATH") "")))
               #t))))))
    (inputs
     `(("boost" ,boost)
       ("jemalloc" ,jemalloc)
       ("libx11" ,libx11)
       ("openimageio" ,openimageio)
       ("openexr" ,openexr)
       ("ilmbase" ,ilmbase)
       ("openjpeg" ,openjpeg-1)
       ("libjpeg" ,libjpeg)
       ("libpng" ,libpng)
       ("libtiff" ,libtiff)
       ("ffmpeg-2.8" ,ffmpeg-2.8) ;<https://lists.gnu.org/archive/html/guix-devel/2016-04/msg01019.html>
       ("fftw" ,fftw)
       ("jack" ,jack-1)
       ("libsndfile" ,libsndfile)
       ("freetype" ,freetype)
       ("glew" ,glew)
       ("openal" ,openal)
       ("python" ,python)
       ("zlib" ,zlib)))
    (home-page "https://blender.org/")
    (synopsis "3D graphics creation suite")
    (description
     "Blender is a 3D graphics creation suite.  It supports the entirety of
the 3D pipeline—modeling, rigging, animation, simulation, rendering,
compositing and motion tracking, even video editing and game creation.  The
application can be customized via its API for Python scripting.")
    (license license:gpl2+)))

(define-public assimp
  (package
    (name "assimp")
    (version "4.1.0")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/assimp/assimp.git")
                    (commit (string-append "v" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "1rhyqfhzifdj7yibyanph3rh13ykw3i98dnn8mz65j780472hw28"))))
    (build-system cmake-build-system)
    (inputs
     `(("zlib" ,zlib)))
    (home-page "http://www.assimp.org/")
    (synopsis "Asset import library")
    (description
     "The Open Asset Import Library loads more than 40 3D file formats into
one unified data structure.  Additionally, assimp features various mesh post
processing tools: normals and tangent space generation, triangulation, vertex
cache locality optimization, removal of degenerate primitives and duplicate
vertices, sorting by primitive type, merging of redundant materials and many
more.")
    (license license:bsd-3)))

(define-public cgal
  (package
    (name "cgal")
    (version "4.8.1")
    (source (origin
              (method url-fetch)
              (uri (string-append
                    "https://github.com/CGAL/cgal/releases/download/releases/"
                    "CGAL-" version "/CGAL-" version ".tar.xz"))
              (sha256
               (base32
                "1c41yzl2jg3d6zx5k0iccwqwibp950q7dr7z7pp4xi9wlph3c87s"))))
    (build-system cmake-build-system)
    (arguments
     '(;; "RelWithDebInfo" is not supported.
       #:build-type "Release"

       ;; No 'test' target.
       #:tests? #f))
    (inputs
     `(("mpfr" ,mpfr)
       ("gmp" ,gmp)
       ("boost" ,boost)))
    (home-page "http://cgal.org/")
    (synopsis "Computational geometry algorithms library")
    (description
     "CGAL provides easy access to efficient and reliable geometric algorithms
in the form of a C++ library.  CGAL is used in various areas needing geometric
computation, such as: computer graphics, scientific visualization, computer
aided design and modeling, geographic information systems, molecular biology,
medical imaging, robotics and motion planning, mesh generation, numerical
methods, etc.  It provides data structures and algorithms such as
triangulations, Voronoi diagrams, polygons, polyhedra, mesh generation, and
many more.")

    ;; The 'LICENSE' file explains that a subset is available under more
    ;; permissive licenses.
    (license license:gpl3+)))

(define-public ilmbase
  (package
    (name "ilmbase")
    (version "2.3.0")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://github.com/openexr/openexr/releases"
                                  "/download/v" version "/ilmbase-"
                                  version ".tar.gz"))
              (sha256
               (base32
                "0qiq5bqq9rxhqjiym2k36sx4vq8adgrz6xf6qwizi9bqm78phsa5"))
              (patches (search-patches "ilmbase-fix-tests.patch"))))
    (build-system gnu-build-system)
    (home-page "http://www.openexr.com/")
    (synopsis "Utility C++ libraries for threads, maths, and exceptions")
    (description
     "IlmBase provides several utility libraries for C++.  Half is a class
that encapsulates ILM's 16-bit floating-point format.  IlmThread is a thread
abstraction.  Imath implements 2D and 3D vectors, 3x3 and 4x4 matrices,
quaternions and other useful 2D and 3D math functions.  Iex is an
exception-handling library.")
    (license license:bsd-3)))

(define-public ogre
  (package
    (name "ogre")
    (version "1.10.11")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "https://github.com/OGRECave/" name
                           "/archive/v" version ".tar.gz"))
       (sha256
        (base32
         "13bdh9v4026qf8w8rbfln2rmwf0rby1a8fz55zpdvpy105i6cbpz"))
       (file-name (string-append name "-" version ".tar.gz"))))
    (build-system cmake-build-system)
    (arguments
     '(#:phases
       (modify-phases %standard-phases
         (add-before 'configure 'pre-configure
           (lambda _
             ;; It expects googletest source to be downloaded and
             ;; be in a specific place.
             (substitute* "Tests/CMakeLists.txt"
               (("URL(.*)$" _ suffix)
                (string-append "URL " suffix
                               "\t\tURL_HASH "
                               "MD5=16877098823401d1bf2ed7891d7dce36\n")))
             #t))
         (add-before 'build 'pre-build
           (lambda* (#:key inputs #:allow-other-keys)
             (copy-file (assoc-ref inputs "googletest-source")
                        (string-append (getcwd)
                                       "/Tests/googletest-prefix/src/"
                                       "release-1.8.0.tar.gz"))
             #t)))
       #:configure-flags
       (list "-DOGRE_BUILD_TESTS=TRUE"
             (string-append "-DCMAKE_INSTALL_RPATH="
                            (assoc-ref %outputs "out") "/lib:"
                            (assoc-ref %outputs "out") "/lib/OGRE:"
                            (assoc-ref %build-inputs "googletest") "/lib")
             "-DOGRE_INSTALL_DOCS=TRUE"
             "-DOGRE_INSTALL_SAMPLES=TRUE"
             "-DOGRE_INSTALL_SAMPLES_SOURCE=TRUE")))
    (native-inputs
     `(("boost" ,boost)
       ("doxygen" ,doxygen)
       ("googletest-source" ,(package-source googletest))
       ("pkg-config" ,pkg-config)))
    (inputs
     `(("font-dejavu" ,font-dejavu)
       ("freeimage" ,freeimage)
       ("freetype" ,freetype)
       ("glu" ,glu)
       ("googletest" ,googletest)
       ("sdl2" ,sdl2)
       ("libxaw" ,libxaw)
       ("libxrandr" ,libxrandr)
       ("tinyxml" ,tinyxml)
       ("zziplib" ,zziplib)))
    (synopsis "Scene-oriented, flexible 3D engine written in C++")
    (description
     "OGRE (Object-Oriented Graphics Rendering Engine) is a scene-oriented,
flexible 3D engine written in C++ designed to make it easier and more intuitive
for developers to produce applications utilising hardware-accelerated 3D
graphics.")
    (home-page "http://www.ogre3d.org/")
    (license license:expat)))

(define-public openexr
  (package
    (name "openexr")
    (version "2.3.0")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://github.com/openexr/openexr/releases"
                                  "/download/v" version "/openexr-"
                                  version ".tar.gz"))
              (sha256
               (base32
                "19jywbs9qjvsbkvlvzayzi81s976k53wg53vw4xj66lcgylb6v7x"))
              (modules '((guix build utils)))
              (snippet
               '(begin
                  (substitute* (find-files "." "tmpDir\\.h")
                    (("\"/var/tmp/\"")
                     "\"/tmp/\""))
                  #t))))
    (build-system gnu-build-system)
    (arguments
     '(#:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'disable-broken-test
           ;; This test fails on i686. Upstream developers suggest that
           ;; this test is broken on i686 and can be safely disabled:
           ;; https://github.com/openexr/openexr/issues/67#issuecomment-21169748
           (lambda _
             (substitute* "IlmImfTest/main.cpp"
               (("#include \"testOptimizedInterleavePatterns.h\"")
                 "//#include \"testOptimizedInterleavePatterns.h\"")
               (("TEST \\(testOptimizedInterleavePatterns")
                 "//TEST (testOptimizedInterleavePatterns"))
             #t)))))
    (native-inputs
     `(("pkg-config" ,pkg-config)))
    (propagated-inputs
     `(("ilmbase" ,ilmbase)                       ;used in public headers
       ("zlib" ,zlib)))                           ;OpenEXR.pc reads "-lz"
    (home-page "http://www.openexr.com")
    (synopsis "High-dynamic range file format library")
    (description
     "OpenEXR is a high dynamic-range (HDR) image file format developed for
use in computer imaging applications.  The IlmImf C++ libraries support
storage of the \"EXR\" file format for storing 16-bit floating-point images.")
    (license license:bsd-3)))

(define-public openimageio
  (package
    (name "openimageio")
    (version "1.7.19")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/OpenImageIO/oiio.git")
                    (commit (string-append "Release-" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "0yxxy43l3lllw7maqg42dlkgqms2d4772sxzxk7kmxg4lnhsvndc"))))
    (build-system cmake-build-system)
    ;; FIXME: To run all tests successfully, test image sets from multiple
    ;; third party sources have to be present.  For details see
    ;; https://github.com/OpenImageIO/oiio/blob/master/INSTALL
    (arguments `(#:tests? #f))
    (native-inputs
     `(("pkg-config" ,pkg-config)))
    (inputs
     `(("boost" ,boost)
       ("libpng" ,libpng)
       ("libjpeg" ,libjpeg)
       ("libtiff" ,libtiff)
       ("giflib" ,giflib)
       ("openexr" ,openexr)
       ("ilmbase" ,ilmbase)
       ("python" ,python-2)
       ("zlib" ,zlib)))
    (synopsis "C++ library for reading and writing images")
    (description
     "OpenImageIO is a library for reading and writing images, and a bunch of
related classes, utilities, and applications.  There is a particular emphasis
on formats and functionality used in professional, large-scale animation and
visual effects work for film.")
    (home-page "http://www.openimageio.org")
    (license license:bsd-3)))

(define-public openscenegraph
  (package
    (name "openscenegraph")
    (version "3.6.3")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/openscenegraph/OpenSceneGraph")
             (commit (string-append "OpenSceneGraph-" version))))
       (sha256
        (base32
         "0h32z15sa8sbq276j0iib0n707m8bs4p5ji9z2ah411446paad9q"))
       (file-name (git-file-name name version))))
    (properties
     `((upstream-name . "OpenSceneGraph")))
    (build-system cmake-build-system)
    (arguments
     `(#:tests? #f ; no test target available
       ;; Without this flag, 'rd' will be added to the name of the
       ;; library binaries and break linking with other programs.
       #:build-type "Release"
       #:configure-flags
       (list (string-append "-DCMAKE_INSTALL_RPATH="
                            (assoc-ref %outputs "out") "/lib:"
                            (assoc-ref %outputs "out") "/lib64"))))
    (native-inputs
     `(("pkg-config" ,pkg-config)
       ("unzip" ,unzip)))
    (inputs
     `(("giflib" ,giflib)
       ("jasper" ,jasper)
       ("librsvg" ,librsvg)
       ("libxrandr" ,libxrandr)
       ("ffmpeg" ,ffmpeg)
       ("mesa" ,mesa)))
    (synopsis "High performance real-time graphics toolkit")
    (description
     "The OpenSceneGraph is a high performance 3D graphics toolkit
used by application developers in fields such as visual simulation, games,
virtual reality, scientific visualization and modeling.")
    (home-page "http://www.openscenegraph.org")
    ;; The 'LICENSE' file explains that the source is licensed under
    ;; LGPL 2.1, but with 4 exceptions. This version is called OSGPL.
    (license license:lgpl2.1)))

(define-public povray
  (package
    (name "povray")
    (version "3.7.0.8")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                    (url "https://github.com/POV-Ray/povray")
                    (commit (string-append "v" version))))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "1q114n4m3r7qy3yn954fq7p46rg7ypdax5fazxr9yj1jklf1lh6z"))
              (modules '((guix build utils)))
              (snippet
               '(begin
                  ;; Delete bundled libraries.
                  (delete-file-recursively "libraries")
                  #t))))
    (build-system gnu-build-system)
    (native-inputs
     `(("autoconf" ,autoconf)
       ("automake" ,automake)
       ("pkg-config" ,pkg-config)))
    (inputs
     `(("boost" ,boost)
       ("libjpeg" ,libjpeg)
       ("libpng" ,libpng)
       ("libtiff" ,libtiff)
       ("openexr" ,openexr)
       ("sdl" ,sdl)
       ("zlib" ,zlib)))
    (arguments
     '(#:configure-flags
       (list "COMPILED_BY=Guix"
             (string-append "--with-boost-libdir="
                            (assoc-ref %build-inputs "boost") "/lib")
             "CXXFLAGS=-std=c++11"
             "--disable-optimiz-arch")
       #:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'run-prebuild
           (lambda _
             (setenv "HOME" (getcwd))
             (with-directory-excursion "unix"
               (substitute* "prebuild.sh"
                 (("/bin/sh") (which "sh")))
               (invoke "sh" "prebuild.sh"))
             #t))
         ;; The bootstrap script is run by the prebuild script in the
         ;; "run-prebuild" phase.
         (delete 'bootstrap))))
    (synopsis "Tool for creating three-dimensional graphics")
    (description
     "@code{POV-Ray} is short for the Persistence of Vision Raytracer, a tool
for producing high-quality computer graphics.  @code{POV-Ray} creates
three-dimensional, photo-realistic images using a rendering technique called
ray-tracing.  It reads in a text file containing information describing the
objects and lighting in a scene and generates an image of that scene from the
view point of a camera also described in the text file.  Ray-tracing is not a
fast process by any means, but it produces very high quality images with
realistic reflections, shading, perspective and other effects.")
    (home-page "http://www.povray.org/")
    (license license:agpl3+)))

(define-public rapicorn
  (package
    (name "rapicorn")
    (version "16.0.0")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://testbit.eu/pub/dists/rapicorn/"
                                  "rapicorn-" version ".tar.xz"))
              (sha256
               (base32
                "1y51yjrpsihas1jy905m9p3r8iiyhq6bwi2690c564i5dnix1f9d"))
              (patches (search-patches "rapicorn-isnan.patch"))))
    (build-system gnu-build-system)
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'fix-tests
           (lambda _
             ;; Our grep does not support perl regular expressions.
             (substitute* "taptool.sh"
               (("grep -P") "grep -E"))
             ;; Disable path tests because we cannot access /bin or /sbin.
             (substitute* "rcore/tests/multitest.cc"
               (("TCMP \\(Path::equals \\(\"/bin\"") "//"))
             #t))
         (add-before 'check 'pre-check
           (lambda _
             ;; The test suite requires a running X server (with DISPLAY
             ;; number 99 or higher).
             (system "Xvfb :99 &")
             (setenv "DISPLAY" ":99")
             #t))
         (add-after 'unpack 'replace-fhs-paths
           (lambda _
             (substitute* (cons "Makefile.decl"
                                (find-files "." "^Makefile\\.in$"))
               (("/bin/ls") (which "ls"))
               (("/usr/bin/env") (which "env")))
             #t)))))
    ;; These libraries are listed in the "Required" section of the pkg-config
    ;; file.
    (propagated-inputs
     `(("librsvg" ,librsvg)
       ("cairo" ,cairo)
       ("pango" ,pango)
       ("libxml2" ,libxml2)
       ("python2-enum34" ,python2-enum34)))
    (inputs
     `(("gdk-pixbuf" ,gdk-pixbuf)
       ("libpng" ,libpng-1.2)
       ("readline" ,readline)
       ("libcroco" ,libcroco)
       ("python" ,python-2)
       ("cython" ,python2-cython)))
    (native-inputs
     `(("pandoc" ,ghc-pandoc)
       ("bison" ,bison)
       ("flex" ,flex)
       ("doxygen" ,doxygen)
       ("graphviz" ,graphviz)
       ("intltool" ,intltool)
       ("pkg-config" ,pkg-config)
       ("xvfb" ,xorg-server)))
    (home-page "https://rapicorn.testbit.org/")
    (synopsis "Toolkit for rapid development of user interfaces")
    (description
     "Rapicorn is a toolkit for rapid development of user interfaces in C++
and Python.  The user interface is designed in a declarative markup language
and is connected to the programming logic using data bindings and commands.")
    (license license:mpl2.0)))

(define-public ctl
  (package
    (name "ctl")
    (version "1.5.2")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://github.com/ampas/CTL/archive/ctl-"
                                  version ".tar.gz"))
              (sha256
               (base32
                "1gg04pyvw0m398akn0s1l07g5b1haqv5na1wpi5dii1jjd1w3ynp"))))
    (build-system cmake-build-system)
    (arguments '(#:tests? #f))                    ;no 'test' target

    ;; Headers include OpenEXR and IlmBase headers.
    (propagated-inputs `(("openexr" ,openexr)))

    (home-page "http://ampasctl.sourceforge.net")
    (synopsis "Color Transformation Language")
    (description
     "The Color Transformation Language, or CTL, is a small programming
language that was designed to serve as a building block for digital color
management systems.  CTL allows users to describe color transforms in a
concise and unambiguous way by expressing them as programs.  In order to apply
a given transform to an image, the color management system instructs a CTL
interpreter to load and run the CTL program that describes the transform.  The
original and the transformed image constitute the CTL program's input and
output.")

    ;; The web site says it's under a BSD-3 license, but the 'LICENSE' file
    ;; and headers use different wording.
    (license (license:non-copyleft "file://LICENSE"))))

(define-public brdf-explorer
  ;; There are no release tarballs, and not even tags in the repo,
  ;; so use the latest revision.
  (let ((commit "5b2cd46f38a06e47207fa7229b72d37beb945019")
        (revision "1"))
    (package
      (name "brdf-explorer")
      (version (string-append "1.0.0-" revision "." (string-take commit 9)))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/wdas/brdf.git")
                      (commit commit)))
                (sha256
                 (base32
                  "06vzbiajzbi2xl8jlff5d45bc9wd68i3jdndfab1f3jgfrd8bsgx"))
                (file-name (string-append name "-" version "-checkout"))))
      (build-system gnu-build-system)
      (arguments
       `(#:phases (modify-phases %standard-phases
                    (replace 'configure
                      (lambda* (#:key outputs #:allow-other-keys)
                        (let ((out (assoc-ref outputs "out")))
                          (zero? (system* "qmake"
                                          (string-append "prefix=" out))))))
                    (add-after 'install 'wrap-program
                      (lambda* (#:key outputs #:allow-other-keys)
                        (let* ((out (assoc-ref outputs "out"))
                               (bin (string-append out "/bin"))
                               (data (string-append
                                      out "/share/brdf")))
                          (with-directory-excursion bin
                            (rename-file "brdf" ".brdf-real")
                            (call-with-output-file "brdf"
                              (lambda (port)
                                (format port "#!/bin/sh
# Run the thing from its home, otherwise it just bails out.
cd \"~a\"
exec -a \"$0\" ~a/.brdf-real~%"
                                        data bin)))
                            (chmod "brdf" #o555))))))))
      (native-inputs
       `(("qttools" ,qttools))) ;for 'qmake'
      (inputs
       `(("qtbase" ,qtbase)
         ("mesa" ,mesa)
         ("glew" ,glew)
         ("freeglut" ,freeglut)
         ("zlib" ,zlib)))
      (home-page "http://www.disneyanimation.com/technology/brdf.html")
      (synopsis
       "Analyze bidirectional reflectance distribution functions (BRDFs)")
      (description
       "BRDF Explorer is an application that allows the development and analysis
of bidirectional reflectance distribution functions (BRDFs).  It can load and
plot analytic BRDF functions (coded as functions in OpenGL's GLSL shader
language), measured material data from the MERL database, and anisotropic
measured material data from MIT CSAIL.  Graphs and visualizations update in
real time as parameters are changed, making it a useful tool for evaluating
and understanding different BRDFs (and other component functions).")
      (license license:ms-pl))))

(define-public agg
  (package
    (name "agg")
    (version "2.5")
    (source (origin
              (method url-fetch)
              (uri (list (string-append
                          "ftp://ftp.fau.de/gentoo/distfiles/agg-"
                          version ".tar.gz")
                         (string-append
                          "ftp://ftp.ula.ve/gentoo/distfiles/agg-"
                          version ".tar.gz")

                         ;; Site was discontinued.
                         (string-append "http://www.antigrain.com/agg-"
                                        version ".tar.gz")))
              (sha256
               (base32 "07wii4i824vy9qsvjsgqxppgqmfdxq0xa87i5yk53fijriadq7mb"))
              (patches (search-patches "agg-am_c_prototype.patch"))))
    (build-system gnu-build-system)
    (arguments
     '(#:configure-flags
       (list (string-append "--x-includes=" (assoc-ref %build-inputs "libx11")
                            "/include")
             (string-append "--x-libraries=" (assoc-ref %build-inputs "libx11")
                            "/lib")
             "--disable-examples")
       #:phases
       (modify-phases %standard-phases
         (replace 'bootstrap
           (lambda _
             ;; let's call configure from configure phase and not now
             (substitute* "autogen.sh" (("./configure") "# ./configure"))
             (invoke "sh" "autogen.sh"))))))
    (native-inputs
     `(("pkg-config" ,pkg-config)
       ("libtool" ,libtool)
       ("autoconf" ,autoconf)
       ("automake" ,automake)))
    (inputs
     `(("libx11" ,libx11)
       ("freetype" ,freetype)
       ("sdl" ,sdl)))

    ;; Antigrain.com was discontinued.
    (home-page "http://agg.sourceforge.net/antigrain.com/index.html")
    (synopsis "High-quality 2D graphics rendering engine for C++")
    (description
     "Anti-Grain Geometry is a high quality rendering engine written in C++.
It supports sub-pixel resolutions and anti-aliasing.  It is also library for
rendering SVG graphics.")
    (license license:gpl2+)))

(define-public python-pastel
  (package
    (name "python-pastel")
    (version "0.1.0")
    (source
     (origin
       (method url-fetch)
       (uri (pypi-uri "pastel" version))
       (sha256
        (base32
         "1hqbm934n5yjwn31aq8h7shrr0rcy326wrqfc856vyn0gr0sy21i"))))
    (build-system python-build-system)
    (native-inputs
     `(("python-pytest" ,python-pytest)))
    (home-page "https://github.com/sdispater/pastel")
    (synopsis "Library to colorize strings in your terminal")
    (description "Pastel is a simple library to help you colorize strings in
your terminal.  It comes bundled with predefined styles:
@enumerate
@item info: green
@item comment: yellow
@item question: black on cyan
@item error: white on red
@end enumerate
")
    (license license:expat)))

(define-public python2-pastel
  (package-with-python2 python-pastel))

(define-public fgallery
  (package
    (name "fgallery")
    (version "1.8.2")
    (source (origin
              (method url-fetch)
              (uri
               (string-append
                "http://www.thregr.org/~wavexx/software/fgallery/releases/"
                "fgallery-" version ".zip"))
              (sha256
               (base32
                "18wlvqbxcng8pawimbc8f2422s8fnk840hfr6946lzsxr0ijakvf"))))
    (build-system gnu-build-system)
    (arguments
     `(#:tests? #f ; no tests
       #:phases
       (modify-phases %standard-phases
         (delete 'configure)
         (delete 'build)
         (replace 'install
           (lambda* (#:key inputs outputs #:allow-other-keys)
             (let* ((out    (assoc-ref outputs "out"))
                    (bin    (string-append out "/bin/"))
                    (share  (string-append out "/share/fgallery"))
                    (man    (string-append out "/share/man/man1"))
                    (perl5lib (getenv "PERL5LIB"))
                    (script (string-append share "/fgallery")))
               (define (bin-directory input-name)
                 (string-append (assoc-ref inputs input-name) "/bin"))

               (mkdir-p man)
               (copy-file "fgallery.1" (string-append man "/fgallery.1"))

               (mkdir-p share)
               (copy-recursively "." share)

               ;; fgallery copies files from store when it is run. The
               ;; read-only permissions from the store directories will cause
               ;; fgallery to fail. Do not preserve file attributes when
               ;; copying files to prevent it.
               (substitute* script
                 (("'cp'")
                  "'cp', '--no-preserve=all'"))

               (mkdir-p bin)
               (symlink script (string-append out "/bin/fgallery"))

               (wrap-program script
                 `("PATH" ":" prefix
                   ,(map bin-directory '("imagemagick"
                                         "lcms"
                                         "fbida"
                                         "libjpeg"
                                         "zip"
                                         "jpegoptim"
                                         "pngcrush"
                                         "p7zip")))
                 `("PERL5LIB" ":" prefix (,perl5lib)))
               #t))))))
    (native-inputs
     `(("unzip" ,unzip)))
    ;; TODO: Add missing optional dependency: facedetect.
    (inputs
     `(("imagemagick" ,imagemagick)
       ("lcms" ,lcms)
       ("fbida" ,fbida)
       ("libjpeg" ,libjpeg)
       ("zip" ,zip)
       ("perl" ,perl)
       ("perl-cpanel-json-xs" ,perl-cpanel-json-xs)
       ("perl-image-exiftool" ,perl-image-exiftool)
       ("jpegoptim" ,jpegoptim)
       ("pngcrush" ,pngcrush)
       ("p7zip" ,p7zip)))
    (home-page "http://www.thregr.org/~wavexx/software/fgallery/")
    (synopsis "Static photo gallery generator")
    (description
     "FGallery is a static, JavaScript photo gallery generator with minimalist
look.  The result can be uploaded on any web server without additional
requirements.")
    (license license:gpl2+)))


code:
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013, 2015 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2015 Efraim Flashner <efraim@flashner.co.il>
;;; Copyright © 2016 Theodoros Foradis <theodoros@foradis.org>
;;; Copyright © 2017 Ricardo Wurmus <rekado@elephly.net>
;;; Copyright © 2017, 2018 Tobias Geerinckx-Rice <me@tobias.gr>
;;; Copyright © 2017 Gábor Boskovits <boskovits@gmail.com>
;;; Copyright © 2018 Mathieu Lirzin <mthl@gnu.org>
;;;
;;; 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 graphviz)
  #:use-module (guix packages)
  #:use-module (guix build-system gnu)
  #:use-module (guix build-system python)
  #:use-module (guix download)
  #:use-module (gnu packages xorg)
  #:use-module (gnu packages gtk)
  #:use-module (gnu packages xml)
  #:use-module (gnu packages glib)
  #:use-module (gnu packages guile)
  #:use-module (gnu packages bison)
  #:use-module (gnu packages image)
  #:use-module (gnu packages autotools)
  #:use-module (gnu packages pkg-config)
  #:use-module (gnu packages glib)
  #:use-module (gnu packages gtk)
  #:use-module (gnu packages gnome)
  #:use-module (gnu packages fontutils)
  #:use-module (gnu packages compression)
  #:use-module (gnu packages gd)
  #:use-module (gnu packages swig)
  #:use-module (gnu packages python)
  #:use-module (gnu packages tex)
  #:use-module ((guix licenses) #:prefix license:))

(define-public graphviz
  (package
    (name "graphviz")
    (version "2.40.1")
    (source (origin
              (method url-fetch)
              (uri (string-append
                    "http://www.graphviz.org/pub/graphviz/ARCHIVE/graphviz-"
                    version ".tar.gz"))
              (sha256
               (base32
                "08d4ygkxz2f553bxj6087da56a23kx1khv0j8ycxa102vvx1hlna"))))
    (build-system gnu-build-system)
    (arguments
     ;; FIXME: rtest/rtest.sh is a ksh script (!).  Add ksh as an input.
     '(#:tests? #f
       #:phases
       (modify-phases %standard-phases
         (add-after 'install 'move-docs
           (lambda* (#:key outputs #:allow-other-keys)
             (let ((out (assoc-ref outputs "out"))
                   (doc (assoc-ref outputs "doc")))
               (mkdir-p (string-append doc "/share/graphviz"))
               (rename-file (string-append out "/share/graphviz/doc")
                            (string-append doc "/share/graphviz/doc"))
               #t)))
         (add-after 'move-docs 'move-guile-bindings
           (lambda* (#:key outputs #:allow-other-keys)
             (let* ((out (assoc-ref outputs "out"))
                    (lib (string-append out "/lib"))
                    (extdir (string-append lib
                                           "/guile/2.0/extensions")))
               (mkdir-p extdir)
               (rename-file (string-append
                             lib "/graphviz/guile/libgv_guile.so")
                            (string-append extdir
                                           "/libgv_guile.so"))
               #t))))))
    (inputs
     `(("libXrender" ,libxrender)
       ("libX11" ,libx11)
       ("gts" ,gts)
       ("gd" ,gd)                                 ; FIXME: Our GD is too old
       ("guile" ,guile-2.0)                       ;Guile bindings
       ("swig" ,swig)
       ("pango" ,pango)
       ("fontconfig" ,fontconfig)
       ("freetype" ,freetype)
       ("libltdl" ,libltdl)
       ("libXaw" ,libxaw)
       ("expat" ,expat)
       ("libjpeg" ,libjpeg)
       ("libpng" ,libpng)))
    (native-inputs
     `(("bison" ,bison)
       ("pkg-config" ,pkg-config)))
    (outputs '("out" "doc"))                      ; 5 MiB of html + pdfs
    (home-page "http://www.graphviz.org/")
    (synopsis "Graph visualization software")
    (description
     "Graphviz is a graph visualization tool suite.  Graph visualization is a
way of representing structural information as diagrams of abstract graphs and
networks.  It has important applications in networking, bioinformatics,
software engineering, database and web design, machine learning, and in visual
interfaces for other technical domains.")
    (license license:epl1.0)))

(define-public python-graphviz
  (package
    (name "python-graphviz")
    (version "0.8.4")
    (source (origin
              (method url-fetch)
              (uri (pypi-uri "graphviz" version ".zip"))
              (sha256
               (base32
                "17v8h7j2yz8hy1jf7q8p0ik8dmf32m58lc6v11x7aqc4pnfa2n29"))))
    (build-system python-build-system)
    (native-inputs
     `(("unzip" ,unzip)))
    (home-page "https://github.com/xflr6/graphviz")
    (synopsis "Simple Python interface for Graphviz")
    (description
     "This package provides a simple Python interface for the Graphviz graph
visualization tool suite.")
    (license license:expat)))

(define-public python2-graphviz
  (package-with-python2 python-graphviz))

(define-public gts
  (package
    (name "gts")
    (version "0.7.6")
    (source (origin
             (method url-fetch)
             (uri (string-append "mirror://sourceforge/gts/gts/" version
                                 "/gts-" version ".tar.gz"))
             (sha256
              (base32
               "07mqx09jxh8cv9753y2d2jsv7wp8vjmrd7zcfpbrddz3wc9kx705"))))
    (build-system gnu-build-system)
    (arguments
     '(#:phases
       (modify-phases %standard-phases
         (add-before 'check 'pre-check
           (lambda _
             (chmod "test/boolean/test.sh" #o777)
             #t)))

       ;; Some data files used by the test suite are missing.
       ;; See <http://sourceforge.net/p/gts/bugs/41/>.
       #:tests? #f))
    (native-inputs
     `(("pkg-config" ,pkg-config)))
    (propagated-inputs
     ;; The gts.pc file has glib-2.0 as required.
     `(("glib" ,glib)))
    (home-page "http://gts.sourceforge.net/")

    ;; Note: Despite the name, this is not official GNU software.
    (synopsis "Triangulated Surface Library")
    (description
     "Library intended to provide a set of useful functions to deal with
3D surfaces meshed with interconnected triangles.")
    (license license:lgpl2.0+)))

(define-public xdot
  (package
    (name "xdot")
    (version "0.7")
    (source
     (origin
      (method url-fetch)
      (uri (pypi-uri "xdot" version))
      (sha256
       (base32
        "1q0f3pskb09saw1qkd2s6vmk80rq5zjhq8l93dfr2x6r04r0q46j"))))
    (build-system python-build-system)
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         ;; We wrap xdot, so that we don't propagate gtk+ and graphviz
         (add-after 'install 'wrap
           (lambda* (#:key inputs outputs #:allow-other-keys)
             (wrap-program (string-append (assoc-ref outputs "out") "/bin/xdot")
               `("GI_TYPELIB_PATH" ":" prefix
                 (,(string-append
                    (assoc-ref inputs "gtk+") "/lib/girepository-1.0"
                    ":" (assoc-ref inputs "pango") "/lib/girepository-1.0"
                    ":" (assoc-ref inputs "gdk-pixbuf") "/lib/girepository-1.0"
                    ":" (assoc-ref inputs "atk") "/lib/girepository-1.0")))
               `("PATH" ":" prefix
                 (,(string-append (assoc-ref inputs "graphviz") "/bin"))))
             #t)))))
    (inputs
     `(("atk" ,atk)
       ("gdk-pixbuf" ,gdk-pixbuf+svg)
       ("graphviz" ,graphviz)
       ("gtk+" ,gtk+)
       ("python-pycairo" ,python-pycairo)
       ("python-pygobject" ,python-pygobject)))
    (home-page "https://pypi.python.org/pypi/xdot")
    (synopsis "Interactive viewer for graphviz dot files")
    (description "Xdot is an interactive viewer for graphs written in
@code{graphviz}’s dot language.  Internally, it uses the xdot output format as
an intermediate format,and @code{gtk} and @code{cairo} for rendering.  Xdot can
be used either as a standalone application, or as a python library.")
    (license license:lgpl3+)))

(define-public python-pydot
  (package
    (name "python-pydot")
    (version "1.2.4")
    (source
     (origin
       (method url-fetch)
       (uri (pypi-uri "pydot" version))
       (sha256
        (base32
         "1dhy4jpp646jslh2yks6klwwbaxcs905byyny880gl1iap8y5llj"))))
    (build-system python-build-system)
    (native-inputs
     ;; For tests.
     `(("python-chardet" ,python-chardet)))
    (propagated-inputs
     `(("python-pyparsing" ,python-pyparsing)))
    (home-page "https://github.com/erocarrera/pydot")
    (synopsis "Python interface to Graphviz's DOT language")
    (description
     "Pydot provides an interface to create, handle, modify and process
graphs in Graphviz's DOT language, written in pure Python.")
    (license license:expat)))

(define-public python2-pydot
  (package-with-python2 python-pydot))

(define-public dot2tex
  (package
    (name "dot2tex")
    (version "2.9.0")
    (source (origin
              (method url-fetch)
              (uri (pypi-uri "dot2tex" version))
              (sha256
               (base32
                "0jhdwp0wv2h0xb7j2s5xiv7i8yaqgfpwwqcyrjvaxkfwsynm8gkx"))))
    (build-system python-build-system)
    (arguments
     `(#:python ,python-2))
    (inputs
     `(("texlive-latex-preview" ,texlive-latex-preview)
       ("graphviz" ,graphviz)))
    (propagated-inputs
     `(("python-pyparsing" ,python2-pyparsing)))
    (home-page "https://github.com/kjellmf/dot2tex")
    (synopsis "Graphviz to LaTeX converter")
    (description
     "The purpose of @code{dot2tex} is to give graphs generated by Graphviz a
more LaTeX friendly look and feel.  This is accomplished by converting
@code{xdot} output from Graphviz to a series of PSTricks or PGF/TikZ commands.
This approach allows:

@itemize @bullet
@item Typesetting labels with LaTeX, allowing mathematical notation
@item Using native PSTricks and PGF/TikZ commands for drawing arrows
@item Using backend specific styles to customize the output
@end itemize")
    (license license:expat)))


code:
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013 Andreas Enge <andreas@enge.fr>
;;; Copyright © 2014 Mark H Weaver <mhw@netris.org>
;;; Copyright © 2016 Ricardo Wurmus <rekado@elephly.net>
;;; Copyright © 2017 Ludovic Courtès <ludo@gnu.org>
;;;
;;; 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 groff)
  #:use-module (guix licenses)
  #:use-module (guix packages)
  #:use-module (guix utils)
  #:use-module (guix download)
  #:use-module (guix git-download)
  #:use-module (guix build-system gnu)
  #:use-module (gnu packages)
  #:use-module (gnu packages bison)
  #:use-module (gnu packages ghostscript)
  #:use-module (gnu packages netpbm)
  #:use-module (gnu packages perl)
  #:use-module (gnu packages texinfo))

(define-public groff
  (package
   (name "groff")
   (version "1.22.3")
   (source (origin
            (method url-fetch)
            (uri (string-append "mirror://gnu/groff/groff-" version
                                ".tar.gz"))
            (sha256 (base32
                     "1998v2kcs288d3y7kfxpvl369nqi06zbbvjzafyvyl3pr7bajj1s"))
            (patches (search-patches "groff-source-date-epoch.patch"))))
   (build-system gnu-build-system)
   (outputs '("out"
              "doc"))                    ;12MiB of PS, PDF, HTML, and examples

   ;; Note: groff's HTML backend uses executables from netpbm when they are in
   ;; $PATH.  In practice, not having them doesn't prevent it from install its
   ;; own HTML doc, nor does it change its capabilities, so we removed netpbm
   ;; from 'inputs'.

   (inputs `(("ghostscript" ,ghostscript)))
   (native-inputs `(("bison" ,bison)
                    ("perl" ,perl)
                    ("psutils" ,psutils)
                    ("texinfo" ,texinfo)))
   (arguments
    `(#:parallel-build? #f   ; parallel build fails
      #:phases
      (modify-phases %standard-phases
        (add-after 'unpack 'setenv
          (lambda _
            (setenv "GS_GENERATE_UUIDS" "0")
            #t)))))
   (synopsis "Typesetting from plain text mixed with formatting commands")
   (description
    "Groff is a typesetting package that reads plain text and produces
formatted output based on formatting commands contained within the text.  It
is usually the formatter of \"man\" documentation pages.")
   (license gpl3+)
   (home-page "https://www.gnu.org/software/groff/")))

(define-public groff-minimal
  ;; Minimialist groff for use by man-db.  Its closure size is less than half
  ;; that of the full-blown groff.
  (package
    (inherit groff)
    (name "groff-minimal")
    (synopsis "Minimalist variant of Groff for use by man-db")
    (outputs '("out"))

    ;; Omit the DVI, PS, PDF, and HTML backends.
    (inputs '())
    (native-inputs `(("bison" ,bison)
                     ("perl" ,perl)))

    (arguments
     `(#:disallowed-references (,perl)

       #:configure-flags '("--docdir=/tmp/trash/doc")

       ,@(substitute-keyword-arguments (package-arguments groff)
           ((#:phases phases)
            `(modify-phases ,phases
               (add-after 'install 'remove-non-essential-programs
                 (lambda* (#:key outputs #:allow-other-keys)
                   ;; Keep only the programs that man-db needs at run time,
                   ;; and make sure we don't pull in Perl.
                   (let ((out  (assoc-ref outputs "out"))
                         (kept '("eqn" "neqn" "pic" "tbl" "refer" "preconv"
                                 "nroff" "groff" "troff" "grotty")))
                     (for-each (lambda (file)
                                 (unless (member (basename file) kept)
                                   (delete-file file)))
                               (find-files (string-append out "/bin")))

                     ;; Remove a bunch of unneeded Perl scripts.
                     (for-each delete-file (find-files out "\\.pl$"))
                     (for-each delete-file
                               (find-files out "BuildFoundries"))

                     ;; Remove ~3 MiB from share/groff/X.Y/font/devBACKEND
                     ;; corresponding to the unused backends.
                     (for-each delete-file-recursively
                               (find-files out "^dev(dvi|ps|pdf|html|lj4)$"
                                           #:directories? #t))
                     #t))))))))))

;; There are no releases, so we take the latest commit.
(define-public roffit
  (let ((commit "e5228388e3faf2b7f1ae5bd048ad46ed565304c6")
        (revision "1"))
    (package
      (name "roffit")
      (version (string-append "0.11-" revision "." (string-take commit 9)))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/bagder/roffit.git")
                      (commit commit)))
                (file-name (string-append "roffit-" commit "-checkout"))
                (sha256
                 (base32
                  "1y7ndbqciy7h0khlpi1bv4v1614vhybnmm4jysj6fwxkw9cwv1nc"))))
      (build-system gnu-build-system)
      (arguments
       `(#:test-target "test"
         #:make-flags
         (list (string-append "INSTALLDIR="
                              (assoc-ref %outputs "out") "/bin"))
         #:phases
         (modify-phases %standard-phases
           (delete 'configure)
           (add-before 'install 'pre-install
             (lambda* (#:key outputs #:allow-other-keys)
               (mkdir-p (string-append (assoc-ref outputs "out")
                                       "/bin"))
               #t)))))
      (inputs
       `(("perl" ,perl)))
      (home-page "https://daniel.haxx.se/projects/roffit/")
      (synopsis "Convert nroff files to HTML")
      (description
       "Roffit is a program that reads an nroff file and outputs an HTML file.
It is typically used to display man pages on a web site.")
      (license expat))))