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-rw-r--r--guix/build/dune-build-system.scm8
-rw-r--r--guix/build/minetest-build-system.scm229
2 files changed, 235 insertions, 2 deletions
diff --git a/guix/build/dune-build-system.scm b/guix/build/dune-build-system.scm
index 7e2ec1e3e1..6a0c2593ac 100644
--- a/guix/build/dune-build-system.scm
+++ b/guix/build/dune-build-system.scm
@@ -1,6 +1,7 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2018 Julien Lepiller <julien@lepiller.eu>
;;; Copyright © 2019 Gabriel Hondet <gabrielhondet@gmail.com>
+;;; Copyright © 2021 pukkamustard <pukkamustard@posteo.net>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -31,11 +32,14 @@
;; Code:
(define* (build #:key (build-flags '()) (jbuild? #f)
- (use-make? #f) (package #f) #:allow-other-keys)
+ (use-make? #f) (package #f)
+ (profile "release") #:allow-other-keys)
"Build the given package."
(let ((program (if jbuild? "jbuilder" "dune")))
(apply invoke program "build" "@install"
- (append (if package (list "-p" package) '()) build-flags)))
+ (append (if package (list "-p" package) '())
+ `("--profile" ,profile)
+ build-flags)))
#t)
(define* (check #:key (test-flags '()) (test-target "test") tests?
diff --git a/guix/build/minetest-build-system.scm b/guix/build/minetest-build-system.scm
new file mode 100644
index 0000000000..477cc3d1d0
--- /dev/null
+++ b/guix/build/minetest-build-system.scm
@@ -0,0 +1,229 @@
+;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
+;;;
+;;; 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 minetest-build-system)
+ #:use-module (guix build utils)
+ #:use-module (srfi srfi-1)
+ #:use-module (ice-9 format)
+ #:use-module (ice-9 match)
+ #:use-module (ice-9 rdelim)
+ #:use-module (ice-9 receive)
+ #:use-module (ice-9 regex)
+ #:use-module ((guix build gnu-build-system) #:prefix gnu:)
+ #:use-module ((guix build copy-build-system) #:prefix copy:)
+ #:export (%standard-phases
+ mod-install-plan minimise-png read-mod-name check))
+
+;; (guix build copy-build-system) does not export 'install'.
+(define copy:install
+ (assoc-ref copy:%standard-phases 'install))
+
+(define (mod-install-plan mod-name)
+ `(("." ,(string-append "share/minetest/mods/" mod-name)
+ ;; Only install files that will actually be used at run time.
+ ;; This can save a little disk space.
+ ;;
+ ;; See <https://github.com/minetest/minetest/blob/master/doc/lua_api.txt>
+ ;; for an incomple list of files that can be found in mods.
+ #:include ("mod.conf" "modpack.conf" "settingtypes.txt" "depends.txt"
+ "description.txt")
+ #:include-regexp (".lua$" ".png$" ".ogg$" ".obj$" ".b3d$" ".tr$"
+ ".mts$"))))
+
+(define* (guess-mod-name #:key inputs #:allow-other-keys)
+ "Try to determine the name of the mod or modpack that is being built.
+If it is unknown, make an educated guess."
+ ;; Minetest doesn't care about the directory names in "share/minetest/mods"
+ ;; so there is no technical problem if the directory names don't match
+ ;; the mod names. The directory can appear in the GUI if the modpack
+ ;; doesn't have the 'name' set though, so try to make a guess.
+ (define (guess)
+ (let* ((source (assoc-ref inputs "source"))
+ ;; Don't retain a reference to the store.
+ (file-name (strip-store-file-name source))
+ ;; The "minetest-" prefix is not informative, so strip it.
+ (file-name (if (string-prefix? "minetest-" file-name)
+ (substring file-name (string-length "minetest-"))
+ file-name))
+ ;; Strip "-checkout" suffixes of git checkouts.
+ (file-name (if (string-suffix? "-checkout" file-name)
+ (substring file-name
+ 0
+ (- (string-length file-name)
+ (string-length "-checkout")))
+ file-name))
+ (first-dot (string-index file-name #\.))
+ ;; If the source code is in an archive (.tar.gz, .zip, ...),
+ ;; strip the extension.
+ (file-name (if first-dot
+ (substring file-name 0 first-dot)
+ file-name)))
+ (format (current-error-port)
+ "warning: the modpack ~a did not set 'name' in 'modpack.conf'~%"
+ file-name)
+ file-name))
+ (cond ((file-exists? "mod.conf")
+ ;; Mods must have 'name' set in "mod.conf", so don't guess.
+ (read-mod-name "mod.conf"))
+ ((file-exists? "modpack.conf")
+ ;; While it is recommended to have 'name' set in 'modpack.conf',
+ ;; it is optional, so guess a name if necessary.
+ (read-mod-name "modpack.conf" guess))
+ (#t (guess))))
+
+(define* (install #:key inputs #:allow-other-keys #:rest arguments)
+ (apply copy:install
+ #:install-plan (mod-install-plan (apply guess-mod-name arguments))
+ arguments))
+
+(define %png-magic-bytes
+ ;; Magic bytes of PNG images, see ‘5.2 PNG signatures’ in
+ ;; ‘Portable Network Graphics (PNG) Specification (Second Edition)’
+ ;; on <https://www.w3.org/TR/PNG/>.
+ #vu8(137 80 78 71 13 10 26 10))
+
+(define png-file?
+ ((@@ (guix build utils) file-header-match) %png-magic-bytes))
+
+(define* (minimise-png #:key inputs native-inputs #:allow-other-keys)
+ "Minimise PNG images found in the working directory."
+ (define optipng (which "optipng"))
+ (define (optimise image)
+ (format #t "Optimising ~a~%" image)
+ (make-file-writable (dirname image))
+ (make-file-writable image)
+ (define old-size (stat:size (stat image)))
+ ;; The mod "technic" has a file "technic_music_player_top.png" that
+ ;; actually is a JPEG file, see
+ ;; <https://github.com/minetest-mods/technic/issues/590>.
+ (if (png-file? image)
+ (invoke optipng "-o4" "-quiet" image)
+ (format #t "warning: skipping ~a because it's not actually a PNG image~%"
+ image))
+ (define new-size (stat:size (stat image)))
+ (values old-size new-size))
+ (define files (find-files "." ".png$"))
+ (let loop ((total-old-size 0)
+ (total-new-size 0)
+ (images (find-files "." ".png$")))
+ (cond ((pair? images)
+ (receive (old-size new-size)
+ (optimise (car images))
+ (loop (+ total-old-size old-size)
+ (+ total-new-size new-size)
+ (cdr images))))
+ ((= total-old-size 0)
+ (format #t "There were no PNG images to minimise."))
+ (#t
+ (format #t "Minimisation reduced size of images by ~,2f% (~,2f MiB to ~,2f MiB)~%"
+ (* 100.0 (- 1 (/ total-new-size total-old-size)))
+ (/ total-old-size (expt 1024 2))
+ (/ total-new-size (expt 1024 2)))))))
+
+(define name-regexp (make-regexp "^name[ ]*=(.+)$"))
+
+(define* (read-mod-name mod.conf #:optional not-found)
+ "Read the name of a mod from MOD.CONF. If MOD.CONF
+does not have a name field and NOT-FOUND is #false, raise an
+error. If NOT-FOUND is TRUE, call NOT-FOUND instead."
+ (call-with-input-file mod.conf
+ (lambda (port)
+ (let loop ()
+ (define line (read-line port))
+ (if (eof-object? line)
+ (if not-found
+ (not-found)
+ (error "~a does not have a 'name' field" mod.conf))
+ (let ((match (regexp-exec name-regexp line)))
+ (if (regexp-match? match)
+ (string-trim-both (match:substring match 1) #\ )
+ (loop))))))))
+
+(define* (check #:key outputs tests? #:allow-other-keys)
+ "Test whether the mod loads. The mod must first be installed first."
+ (define (all-mod-names directories)
+ (append-map
+ (lambda (directory)
+ (map read-mod-name (find-files directory "mod.conf")))
+ directories))
+ (when tests?
+ (mkdir "guix_testworld")
+ ;; Add the mod to the mod search path, such that Minetest can find it.
+ (setenv "MINETEST_MOD_PATH"
+ (list->search-path-as-string
+ (cons
+ (string-append (assoc-ref outputs "out") "/share/minetest/mods")
+ (search-path-as-string->list
+ (or (getenv "MINETEST_MOD_PATH") "")))
+ ":"))
+ (with-directory-excursion "guix_testworld"
+ (setenv "HOME" (getcwd))
+ ;; Create a world in which all mods are loaded.
+ (call-with-output-file "world.mt"
+ (lambda (port)
+ (display
+ "gameid = minetest
+world_name = guix_testworld
+backend = sqlite3
+player_backend = sqlite3
+auth_backend = sqlite3
+" port)
+ (for-each
+ (lambda (mod)
+ (format port "load_mod_~a = true~%" mod))
+ (all-mod-names (search-path-as-string->list
+ (getenv "MINETEST_MOD_PATH"))))))
+ (receive (port pid)
+ ((@@ (guix build utils) open-pipe-with-stderr)
+ "xvfb-run" "--" "minetest" "--info" "--world" "." "--go")
+ (format #t "Started Minetest with all mods loaded for testing~%")
+ ;; Scan the output for error messages.
+ ;; When the player has joined the server, stop minetest.
+ (define (error? line)
+ (and (string? line)
+ (string-contains line ": ERROR[")))
+ (define (stop? line)
+ (and (string? line)
+ (string-contains line "ACTION[Server]: singleplayer [127.0.0.1] joins game.")))
+ (let loop ()
+ (match (read-line port)
+ ((? error? line)
+ (error "minetest raised an error: ~a" line))
+ ((? stop?)
+ (kill pid SIGINT)
+ (close-port port)
+ (waitpid pid))
+ ((? string? line)
+ (display line)
+ (newline)
+ (loop))
+ ((? eof-object?)
+ (error "minetest didn't start"))))))))
+
+(define %standard-phases
+ (modify-phases gnu:%standard-phases
+ (delete 'bootstrap)
+ (delete 'configure)
+ (add-before 'build 'minimise-png minimise-png)
+ (delete 'build)
+ (delete 'check)
+ (replace 'install install)
+ ;; The 'check' phase requires the mod to be installed,
+ ;; so move the 'check' phase after the 'install' phase.
+ (add-after 'install 'check check)))
+
+;;; minetest-build-system.scm ends here