;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2021 Andrew Tropin <andrew@trop.in>
;;; Copyright © 2021 Xinglu Chen <public@yoctocell.xyz>
;;;
;;; 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 home services fontutils)
  #:use-module (gnu home services)
  #:use-module (gnu packages fontutils)
  #:use-module (guix gexp)

  #:export (home-fontconfig-service-type))

;;; Commentary:
;;;
;;; Services related to fonts.  home-fontconfig service provides
;;; fontconfig configuration, which allows fc-* utilities to find
;;; fonts in Guix Home's profile and regenerates font cache on
;;; activation.
;;;
;;; Code:

(define (add-fontconfig-config-file he-symlink-path)
  `(("fontconfig/fonts.conf"
     ,(mixed-text-file
       "fonts.conf"
       "<?xml version='1.0'?>
<!DOCTYPE fontconfig SYSTEM 'fonts.dtd'>
<fontconfig>
  <dir>~/.guix-home/profile/share/fonts</dir>
</fontconfig>"))))

(define (regenerate-font-cache-gexp _)
  `(("profile/share/fonts"
     ,#~(system* #$(file-append fontconfig "/bin/fc-cache") "-fv"))))

(define home-fontconfig-service-type
  (service-type (name 'home-fontconfig)
                (extensions
                 (list (service-extension
                        home-xdg-configuration-files-service-type
                        add-fontconfig-config-file)
                       (service-extension
                        home-run-on-change-service-type
                        regenerate-font-cache-gexp)
                       (service-extension
                        home-profile-service-type
                        (const (list fontconfig)))))
                (default-value #f)
                (description
                 "Provides configuration file for fontconfig and make
fc-* utilities aware of font packages installed in Guix Home's profile.")))
 class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/tests/file-sharing.scm?id=cd7098f9325fadc381adae97e757c8e455390cd0&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2021-09-26 23:20:56 +0200'>2021-09-26</span></td><td><a href='/guix/commit/gnu/tests/file-sharing.scm?id=89b05442933d92f4b21c3294455a498e8333727d'>tests: Reduce boilerplate for users of 'system-test-runner'.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-09-25 18:52:05 +0200'>2021-09-25</span></td><td><a href='/guix/commit/gnu/tests/file-sharing.scm?id=1fb75128a5202b406622da6272bc809c46d1f439'>tests: Adjust to SRFI-64 as found in Guile 3.0.7.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-03-28 22:31:00 +0200'>2021-03-28</span></td><td><a href='/guix/commit/gnu/tests/file-sharing.scm?id=5d8c2c00d60196c46a32b68c618ccbe2b3aa48f4'>tests: Add Transmission Daemon system test.</a><span class='msg-avail'>...</span></td><td>Simon South</td></tr>