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* [PATCH] glib-or-gtk-build-system: new build-system
@ 2014-10-06 16:43 Federico Beffa
  2014-10-06 21:32 ` Ludovic Courtès
  0 siblings, 1 reply; 14+ messages in thread
From: Federico Beffa @ 2014-10-06 16:43 UTC (permalink / raw)
  To: guix-devel

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Please find attached a new build system for applications making use of
glib or gtk+.
It uses wrappers as previously discussed on this list.

I've successfully tested it with three packages: emacs, libcanberra and gtk+.

Currently it is implemented as a separate build-system inheriting from
the gnu-build-system. Essentially it adds 2 phases to the latter.
IMO, it would make sense to make those 2 phases part of the
gnu-build-system and enable them with the help of flags.

Regards,
Fede

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From dcb7dc451eac21e24e6972fa4c1a4524a7658af0 Mon Sep 17 00:00:00 2001
From: Federico Beffa <beffa@fbengineering.ch>
Date: Mon, 6 Oct 2014 15:49:29 +0200
Subject: [PATCH] glib-or-gtk-build-system: new build-system

* guix/build-system/glib-or-gtk.scm, guix/build/glib-or-gtk-build-system.scm:
  Add initial version of a new build-system called 'glib-or-gtk-build-system'.
---
 guix/build-system/glib-or-gtk.scm       | 165 ++++++++++++++++++++++++++++++++
 guix/build/glib-or-gtk-build-system.scm | 123 ++++++++++++++++++++++++
 2 files changed, 288 insertions(+)
 create mode 100644 guix/build-system/glib-or-gtk.scm
 create mode 100644 guix/build/glib-or-gtk-build-system.scm

diff --git a/guix/build-system/glib-or-gtk.scm b/guix/build-system/glib-or-gtk.scm
new file mode 100644
index 0000000..04cb6af
--- /dev/null
+++ b/guix/build-system/glib-or-gtk.scm
@@ -0,0 +1,165 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2013, 2014 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013 Cyril Roelandt <tipecaml@gmail.com>
+;;; Copyright © 2014 Federico Beffa <beffa@fbengineering.ch>
+;;;
+;;; 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-system glib-or-gtk)
+  #:use-module (guix store)
+  #:use-module (guix utils)
+  #:use-module (guix derivations)
+  #:use-module (guix build-system)
+  #:use-module (guix build-system gnu)
+  #:use-module (guix packages)
+  #:use-module (ice-9 match)
+  #:export (glib-or-gtk-build
+            glib-or-gtk-build-system))
+
+;; Commentary:
+;;
+;; This build system is an extension of the 'gnu-build-system'.  It
+;; accomodates the needs of applications making use of glib or gtk+ (with "or"
+;; to be interpreted in the mathematical sense).  This is achieved by adding
+;; two phases run after the 'install' phase:
+;;
+;; 'glib-or-gtk-wrap' phase:
+;; 
+;; a) This phase looks for GSettings schemas by verifying the existence of
+;; path "datadir/glib-2.0/schemas" in all input packages.  If the path is
+;; found in any package, then all programs in "out/bin" are wrapped in scripts
+;; where the environment variable "XDG_DATA_DIRS" is set and points to the
+;; list of found schemas directories.
+;;
+;; b) Looks for the existence of "libdir/gtk-3.0" directories in all input
+;; packages.  If any is found, then the environment variable "GTK_PATH" is
+;; suitably set and added to the wrappers.  The variable "GTK_PATH" has been
+;; preferred over "GTK_EXE_PREFIX" because the latter can only point to a
+;; single directory, while we may need to point to several ones.
+;;
+;; 'glib-or-gtk-compile-schemas' phase:
+;; 
+;; Looks for the presence of "out/share/glib-2.0/schemas".  If that directory
+;; exists and does not include a file named "gschemas.compiled", then
+;; "glib-compile-schemas" is run in that directory.
+;;
+;; Code:
+
+(define %default-modules
+  ;; Build-side modules made available in the build environment.
+  '((guix build glib-or-gtk-build-system)
+    (guix build utils)))
+
+(define %default-imported-modules
+  ;; Build-side modules imported and used by default.
+  '((guix build gnu-build-system)
+    (guix build glib-or-gtk-build-system)
+    (guix build utils)))
+
+(define (default-glib)
+  "Return the default glib package from which we use
+\"glib-compile-schemas\"."
+  ;; Do not use `@' to avoid introducing circular dependencies.
+  (let ((module (resolve-interface '(gnu packages glib))))
+    (module-ref module 'glib)))
+
+(define* (glib-or-gtk-build store name source inputs
+                     #:key (guile #f)
+                     (outputs '("out"))
+                     (search-paths '())
+                     (configure-flags ''())
+                     (make-flags ''())
+                     (glib (default-glib))
+                     (out-of-source? #t)
+                     (tests? #t)
+                     (test-target "check")
+                     (parallel-build? #t) 
+                     (parallel-tests? #t)
+                     (patch-shebangs? #t)
+                     (strip-binaries? #t)
+                     (strip-flags ''("--strip-debug"))
+                     (strip-directories ''("lib" "lib64" "libexec"
+                                           "bin" "sbin"))
+                     (phases '(@ (guix build glib-or-gtk-build-system)
+                                 %standard-phases))
+                     (system (%current-system))
+                     (imported-modules %default-imported-modules)
+                     (modules %default-modules)
+                     allowed-references)
+  "Build SOURCE with INPUTS.  See GNU-BUILD for more details."
+  (define builder
+    `(begin
+       (use-modules ,@modules)
+       (glib-or-gtk-build #:source ,(if (derivation? source)
+                                  (derivation->output-path source)
+                                  source)
+                    #:system ,system
+                    #:outputs %outputs
+                    #:inputs %build-inputs
+                    #:search-paths ',(map search-path-specification->sexp
+                                          (append search-paths
+                                                  (standard-search-paths)))
+                    #:phases ,phases
+                    #:configure-flags ,configure-flags
+                    #:make-flags ,make-flags
+                    #:out-of-source? ,out-of-source?
+                    #:tests? ,tests?
+                    #:test-target ,test-target
+                    #:parallel-build? ,parallel-build?
+                    #:parallel-tests? ,parallel-tests?
+                    #:patch-shebangs? ,patch-shebangs?
+                    #:strip-binaries? ,strip-binaries?
+                    #:strip-flags ,strip-flags
+                    #:strip-directories ,strip-directories)))
+
+  (define guile-for-build
+    (match guile
+      ((? package?)
+       (package-derivation store guile system))
+      ((and (? string?) (? derivation-path?))
+       guile)
+      (#f                                         ; the default
+       (let* ((distro (resolve-interface '(gnu packages commencement)))
+              (guile  (module-ref distro 'guile-final)))
+         (package-derivation store guile system)))))
+
+  (let ((glib (package-derivation store glib system)))  
+    (build-expression->derivation store name builder
+                                  #:system system
+                                  #:inputs
+                                  `(,@(if source
+                                          `(("source" ,source))
+                                          '())
+                                    ,@inputs
+                                    
+                                    ;; we need glib-compile-schemas
+                                    ("glib" ,glib "bin")
+                                    
+                                    ;; Keep the standard inputs of
+                                    ;; `gnu-build-system'.
+                                    ,@(standard-inputs system))
+                                  
+                                  #:modules imported-modules
+                                  #:outputs outputs
+                                  #:guile-for-build guile-for-build)))
+
+(define glib-or-gtk-build-system
+  (build-system (name 'glib-or-gtk)
+                (description
+                 "The GNU Build System—i.e., ./configure && make && make
+install, augmented with definition of suitable environment variables for glib
+and gtk+ in program wrappers.")
+                (build glib-or-gtk-build)))
diff --git a/guix/build/glib-or-gtk-build-system.scm b/guix/build/glib-or-gtk-build-system.scm
new file mode 100644
index 0000000..6f3b593
--- /dev/null
+++ b/guix/build/glib-or-gtk-build-system.scm
@@ -0,0 +1,123 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2014 Federico Beffa <beffa@fbengineering.ch>
+;;;
+;;; 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 glib-or-gtk-build-system)
+  #:use-module ((guix build gnu-build-system) #:prefix gnu:)
+  #:use-module (guix build utils)
+  #:use-module (ice-9 match)
+  #:use-module (ice-9 regex)
+  #:use-module (srfi srfi-1)
+  #:export (%standard-phases
+            glib-or-gtk-build))
+
+;; Commentary:
+;;
+;; Builder-side code of the standard glib-or-gtk build procedure.
+;;
+;; Code:
+
+(define (rel-path-exists? path rel-path)
+  (directory-exists? (string-append path rel-path)))
+
+(define (gtk-module-dirs inputs)
+  "Check for the existence of \"libdir/gtk-v.0\" in INPUTS.  Return a list
+with all found pathes.  If none is found return an empty list."
+  (let* ((version 
+          (if (string-match "gtk\\+-3" 
+                            (or (assoc-ref inputs "gtk+")
+                                (assoc-ref inputs "source")
+                                "gtk+-3")) ; we default to version 3
+              "3.0"
+              "2.0"))
+         (gtk-module
+          (lambda (input prev)
+            (let* ((in (match input
+                         ((_ . dir) dir)
+                         (_ "")))
+                   (libdir 
+                    (string-append in "/lib/gtk-" version)))
+              (if (directory-exists? libdir)
+                  (cons libdir prev)
+                  prev)))))
+    (fold gtk-module '() inputs)))
+
+(define (glib-schemas input prev)
+  (let* ((in (match input
+               ((_ . dir) dir)
+               (_ "")))
+         (datadir (string-append in "/share")))
+    (if (rel-path-exists? datadir "/glib-2.0/schemas")
+        (cons datadir prev)
+        prev)))
+
+(define (schemas-dirs inputs)
+  "Check for the existence of \"datadir/glib-2.0/schemas\" in INPUTS.  Return
+a list with all found pathes.  If none is found return an empty list."
+  (fold glib-schemas '() inputs))
+
+(define* (wrap-all-programs #:key inputs outputs #:allow-other-keys)
+  "Implement phase \"glib-or-gtk-wrap\": look for GSettings schemas and
+gtk+-v.0 libraries and create wrappers with suitably set environment variables
+if found."
+  (let* ((out (assoc-ref outputs "out"))
+         (bindir (string-append out "/bin"))
+         (bin-list (find-files bindir ".*"))
+         (schemas (schemas-dirs (acons "out" out inputs)))
+         (schemas-env-var 
+          (if (not (null? schemas))
+              `("XDG_DATA_DIRS" ":" prefix ,schemas)
+              #f))
+         (gtk-mod-dirs (gtk-module-dirs (acons "out" out inputs)))
+         (gtk-mod-env-var 
+          (if (not (null? gtk-mod-dirs))
+              `("GTK_PATH" ":" prefix ,gtk-mod-dirs)
+              #f)))
+    (cond
+     ((and schemas-env-var gtk-mod-env-var)
+      (map (lambda (prog) 
+             (wrap-program prog schemas-env-var gtk-mod-env-var))
+           bin-list))
+     (schemas-env-var
+      (map (lambda (prog) (wrap-program prog schemas-env-var)) bin-list))
+     (gtk-mod-env-var
+      (map (lambda (prog) (wrap-program prog gtk-mod-env-var)) bin-list)))))
+
+(define* (compile-glib-schemas #:key inputs outputs #:allow-other-keys)
+  "Implement phase \"glib-or-gtk-compile-schemas\": compile \"glib\" schemas
+if needed."
+  (let* ((out (assoc-ref outputs "out"))
+         (schemasdir (string-append out "/share/glib-2.0/schemas")))
+    (if (and (directory-exists? schemasdir)
+             (not (file-exists? 
+                   (string-append schemasdir "/gschemas.compiled"))))
+        (system* "glib-compile-schemas" schemasdir)
+        #t)))
+
+(define %standard-phases
+  (alist-cons-after
+   'install 'glib-or-gtk-wrap wrap-all-programs 
+   (alist-cons-after 
+    'install 'glib-or-gtk-compile-schemas compile-glib-schemas 
+    gnu:%standard-phases)))
+
+(define* (glib-or-gtk-build #:key inputs (phases %standard-phases)
+                      #:allow-other-keys #:rest args)
+  "Build the given package, applying all of PHASES in order."
+  (apply gnu:gnu-build #:inputs inputs #:phases phases args))
+
+;;; glib-or-gtk-build-system.scm ends here
-- 
1.8.4


^ permalink raw reply related	[flat|nested] 14+ messages in thread
end of thread, other threads:[~2014-10-11 18:32 UTC | newest]

Thread overview: 14+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2014-10-06 16:43 [PATCH] glib-or-gtk-build-system: new build-system Federico Beffa
2014-10-06 21:32 ` Ludovic Courtès
2014-10-08  7:28   ` Federico Beffa
2014-10-08  7:32     ` Federico Beffa
2014-10-08  9:49       ` Ludovic Courtès
2014-10-08 10:04     ` Ludovic Courtès
2014-10-08 11:47       ` Federico Beffa
2014-10-08 19:28         ` Ludovic Courtès
2014-10-09 20:33           ` Federico Beffa
2014-10-10 20:29             ` Ludovic Courtès
     [not found]               ` <CAKrPhPMURz=a3j7PMYiVTFB9QiF9-i6M_qmRj3Z9DwPDcX_wKQ@mail.gmail.com>
2014-10-11 10:13                 ` Ludovic Courtès
2014-10-11 18:31                   ` Federico Beffa
     [not found]           ` <CAKrPhPPXvgVM9XasFNQ6hVCr-79Z8yBVgEFbCjd__GuZtrM+wg@mail.gmail.com>
2014-10-09 21:10             ` Ludovic Courtès
2014-10-10  7:15               ` Federico Beffa

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