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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014 Federico Beffa <beffa@fbengineering.ch>
;;; Copyright © 2014, 2015, 2021 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2018 Mark H Weaver <mhw@netris.org>
;;; Copyright © 2019, 2020 Hartmut Goebel <h.goebel@crazy-compilers.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 (guix build qt-build-system)
#:use-module ((guix build cmake-build-system) #:prefix cmake:)
#:use-module (guix build utils)
#:use-module (ice-9 match)
#:use-module (ice-9 regex)
#:use-module (ice-9 ftw)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:export (%standard-phases
qt-build))
;; Commentary:
;;
;; Builder-side code of the standard Qt build procedure.
;;
;; Code:
(define* (check-setup #:rest args)
;; Make Qt render "offscreen". In many cases this allows to run tests
;; without starting a X11 server.
(setenv "QT_QPA_PLATFORM" "offscreen")
;; Qt/KDE tests often need dbus (`dbus-launch …`) which is not fully
;; set-up the the build container.
(setenv "DBUS_FATAL_WARNINGS" "0")
;; Set here to ease overwriting 'check (even if set there, too)
(setenv "CTEST_OUTPUT_ON_FAILURE" "1")
#t)
(define (variables-for-wrapping base-directories)
(define (collect-sub-dirs base-directories file-type subdirectory
selectors)
;; Append SUBDIRECTORY and each of BASE-DIRECTORIES, and return the subset
;; that exists and has at least one of the SELECTORS sub-directories,
;; unless SELECTORS is the empty list. FILE-TYPE should by 'directory or
;; 'regular file. For the later, it allows searching for plain files
;; rather than directories.
(define exists? (match file-type
('directory directory-exists?)
('regular file-exists?)))
(filter-map (lambda (dir)
(let ((directory (string-append dir subdirectory)))
(and (exists? directory)
(or (null? selectors)
(any (lambda (selector)
(exists?
(string-append directory selector)))
selectors))
directory)))
base-directories))
(filter-map
(match-lambda
((variable file-type directory selectors ...)
(match (collect-sub-dirs base-directories file-type directory
selectors)
(()
#f)
(directories
`(,variable = ,directories)))))
;; These shall match the search-path-specification for Qt and KDE
;; libraries.
(list '("XDG_DATA_DIRS" directory "/share"
;; These are "selectors": consider /share if and only if at least
;; one of these sub-directories exist. This avoids adding
;; irrelevant packages to XDG_DATA_DIRS just because they have a
;; /share sub-directory.
"/glib-2.0/schemas" "/sounds" "/themes"
"/cursors" "/wallpapers" "/icons" "/mime")
'("XDG_CONFIG_DIRS" directory "/etc/xdg")
'("QT_PLUGIN_PATH" directory "/lib/qt5/plugins")
'("QML2_IMPORT_PATH" directory "/lib/qt5/qml")
'("QTWEBENGINEPROCESS_PATH" regular
"/lib/qt5/libexec/QtWebEngineProcess"))))
(define* (wrap-all-programs #:key inputs outputs
(qt-wrap-excluded-outputs '())
#:allow-other-keys)
"Implement phase \"qt-wrap\": look for GSettings schemas and
gtk+-v.0 libraries and create wrappers with suitably set environment variables
if found.
Wrapping is not applied to outputs whose name is listed in
QT-WRAP-EXCLUDED-OUTPUTS. This is useful when an output is known not
to contain any Qt binaries, and where wrapping would gratuitously
add a dependency of that output on Qt."
(define (find-files-to-wrap directory)
(append-map
(lambda (dir)
(if (directory-exists? dir) (find-files dir ".*") (list)))
(list (string-append directory "/bin")
(string-append directory "/sbin")
(string-append directory "/libexec")
(string-append directory "/lib/libexec"))))
(define input-directories
;; FIXME: Filter out unwanted inputs, e.g. cmake
(match inputs
(((_ . dir) ...)
dir)))
(define handle-output
(match-lambda
((output . directory)
(unless (member output qt-wrap-excluded-outputs)
(let ((bin-list (find-files-to-wrap directory))
(vars-to-wrap (variables-for-wrapping
(append (list directory)
input-directories))))
(when (not (null? vars-to-wrap))
(for-each (cut apply wrap-program <> vars-to-wrap)
bin-list)))))))
(for-each handle-output outputs)
#t)
(define %standard-phases
(modify-phases cmake:%standard-phases
(add-before 'check 'check-setup check-setup)
(add-after 'install 'qt-wrap wrap-all-programs)))
(define* (qt-build #:key inputs (phases %standard-phases)
#:allow-other-keys #:rest args)
"Build the given package, applying all of PHASES in order."
(apply cmake:cmake-build #:inputs inputs #:phases phases args))
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