;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2016 Jan Nieuwenhuizen <janneke@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 gnu-doc)
  #:use-module (gnu packages base)
  #:use-module (gnu packages compression)
  #:use-module (gnu packages texinfo)

  #:use-module (guix build-system trivial)
  #:use-module (guix download)
  #:use-module (guix licenses)
  #:use-module (guix packages))

(define-public gnu-maintain
  (package
    (name "gnu-maintain")
    (version "2015-05-07")
    (source (origin
              (method url-fetch)
              (uri "http://www.gnu.org/prep/maintain/maintain.texi.tar.gz")
              (sha256
               (base32
                "0zqi8xni8r9fxn8xcz2by4vpcgfy0ky5j46p91hysm63yzpamz3s"))))
    (build-system trivial-build-system)
    (native-inputs `(("gzip" ,gzip)
                     ("source" ,source)
                     ("tar" ,tar)
                     ("texinfo" ,texinfo)))
    (arguments
     `(#:modules ((guix build utils))
       #:builder (begin
                   (use-modules (guix build utils))
                   (let ((gzip (assoc-ref %build-inputs "gzip"))
                         (source (assoc-ref %build-inputs "source"))
                         (tar (assoc-ref %build-inputs "tar"))
                         (texinfo (assoc-ref %build-inputs "texinfo"))
                         (info-dir (string-append %output "/share/info")))
                     (setenv "PATH" (string-append gzip "/bin"
                                                   ":" tar "/bin"
                                                   ":" texinfo "/bin"))
                     (mkdir-p info-dir)
                     (system* "tar" "xf" source)
                     (system* "makeinfo" "--output" info-dir "maintain.texi")
                     (system* "gzip" (string-append info-dir "/maintain.info"))))))
    (home-page "http://www.gnu.org/prep/maintain/")
    (synopsis "Information for maintainers of GNU software")
    (description "Guidelines and advice for someone who is the maintainer of a
GNU program on behalf of the GNU Project.")
    (license fdl1.3+)))

(define-public gnu-standards
  (package
    (name "gnu-standards")
    (version "2015-04-23")
    (source (origin
              (method url-fetch)
              (uri "http://www.gnu.org/prep/standards/standards.texi.tar.gz")
              (sha256
               (base32
                "1rdyqk6d5bgrpmlnb8r65qif1h604jz1g7v3szh24cqga3mgi9py"))))
    (build-system trivial-build-system)
    (native-inputs `(("gzip" ,gzip)
                     ("source" ,source)
                     ("tar" ,tar)
                     ("texinfo" ,texinfo)))
    (arguments
     `(#:modules ((guix build utils))
       #:builder (begin
                   (use-modules (guix build utils))
                   (let ((gzip (assoc-ref %build-inputs "gzip"))
                         (source (assoc-ref %build-inputs "source"))
                         (tar (assoc-ref %build-inputs "tar"))
                         (texinfo (assoc-ref %build-inputs "texinfo"))
                         (info-dir (string-append %output "/share/info")))
                     (setenv "PATH" (string-append gzip "/bin"
                                                   ":" tar "/bin"
                                                   ":" texinfo "/bin"))
                     (mkdir-p info-dir)
                     (system* "tar" "xf" source)
                     (system* "makeinfo" "--output" info-dir "standards.texi")
                     (system* "gzip" (string-append info-dir "/standards.info"))))))
    (home-page "http://www.gnu.org/prep/standards/")
    (synopsis "GNU coding standards")
    (description "The GNU Coding Standards were written by Richard Stallman and other GNU Project volunteers.  Their purpose is to make the GNU system clean, consistent, and easy to install.")
    (license fdl1.3+)))