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guix: build/glib-or-gtk-build-system: Add support for GIO and XDG theming. 

* guix/build/glib-or-gtk-build-system.scm (data-directories): Rename
  'schemas-directories' to 'data-directories' and add support for XDG theming
  data.

* guix/build/glib-or-gtk-build-system.scm (gio-module-directories): New
  function.

* guix/build/glib-or-gtk-build-system.scm (wrap-all-programs): Update names to
  reflect that we are dealing with more types of data and not only with
  schemas.  Add handling of GIO modules.

* guix/build-system/glib-or-gtk.scm (lower): Import the 'bin' output of GLib
  instead of 'out'.  This was an error since we need the program
  'glib-compile-schemas'.  Update the description.
master
Federico Beffa 2014-12-18 20:58:18 +01:00
parent 9f496d430b
commit 61771a79ab
2 changed files with 141 additions and 27 deletions
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30
guix/build-system/glib-or-gtk.scm
View File

@ -34,15 +34,14 @@
;; 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:
;; three 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.
;; a) This phase looks for GSettings schemas, GIO modules and theming data.
;; If any of these is found in any input package, then all programs in
;; "out/bin" are wrapped in scripts defining the nedessary environment
;; variables.
;;
;; 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
@ -56,6 +55,11 @@
;; exists and does not include a file named "gschemas.compiled", then
;; "glib-compile-schemas" is run in that directory.
;;
;; 'glib-or-gtk-icon-cache' phase:
;;
;; Looks for the existence of icon themes and, if no cache exists, generate
;; the "icon-theme.cache" file.
;;
;; Code:
(define %default-modules
@ -76,15 +80,22 @@
(let ((module (resolve-interface '(gnu packages glib))))
(module-ref module 'glib)))
(define (default-gtk+)
"Return the default gtk+ package from which we use
\"gtk-update-icon-cache\"."
(let ((module (resolve-interface '(gnu packages gtk))))
(module-ref module 'gtk+)))
(define* (lower name
#:key source inputs native-inputs outputs system target
(glib (default-glib)) (implicit-inputs? #t)
(glib (default-glib)) (gtk+ (default-gtk+))
(implicit-inputs? #t)
(strip-binaries? #t)
#:allow-other-keys
#:rest arguments)
"Return a bag for NAME."
(define private-keywords
'(#:source #:target #:glib #:inputs #:native-inputs
'(#:source #:target #:glib #:gtk+ #:inputs #:native-inputs
#:outputs #:implicit-inputs?))
(and (not target) ;XXX: no cross-compilation
@ -95,7 +106,8 @@
`(("source" ,source))
'())
,@inputs))
(build-inputs `(("glib:bin" ,glib)
(build-inputs `(("glib:bin" ,glib "bin") ; to compile schemas
("gtk+" ,gtk+) ; to generate icon cache
,@(if implicit-inputs?
(standard-packages)
'())

138
guix/build/glib-or-gtk-build-system.scm
View File

@ -22,6 +22,7 @@
#: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
@ -41,6 +42,9 @@
(fold (lambda (s p) (or (string-ci=? s directory) p))
#f directories-list))
;; We do not include $HOME/.guix-profile/gtk-v.0 (v=2 or 3) because we do not
;; want to mix gtk+-2 and gtk+-3 modules. See
;; https://developer.gnome.org/gtk3/stable/gtk-running.html
(define (gtk-module-directories inputs)
"Check for the existence of \"libdir/gtk-v.0\" in INPUTS. Return a list
with all found directories."
@ -64,20 +68,60 @@ with all found directories."
prev)))))
(fold gtk-module '() inputs)))
(define (schemas-directories inputs)
"Check for the existence of \"datadir/glib-2.0/schemas\" in INPUTS. Return
a list with all found directories."
(define (glib-schemas input previous)
;; See
;; http://www.freedesktop.org/wiki/DesktopThemeSpec
;; http://freedesktop.org/wiki/Specifications/sound-theme-spec
;; http://freedesktop.org/wiki/Specifications/icon-theme-spec
;;
;; Currently desktop themes are not well supported and do not honor
;; XDG_DATA_DIRS. One example is evince which only looks for desktop themes
;; in $HOME/.themes (for backward compatibility) and in XDG_DATA_HOME (which
;; defaults to $HOME/.local/share). One way to handle these applications
;; appears to be by making $HOME/.themes a symlink to
;; $HOME/.guix-profile/share/themes.
(define (data-directories inputs)
"Check for the existence of \"$datadir/glib-2.0/schemas\" or XDG themes data
in INPUTS. Return a list with all found directories."
(define (data-directory input previous)
(let* ((in (match input
((_ . dir) dir)
(_ "")))
(datadir (string-append in "/share")))
(if (and (subdirectory-exists? datadir "/glib-2.0/schemas")
(if (and (or (subdirectory-exists? datadir "/glib-2.0/schemas")
(subdirectory-exists? datadir "/sounds")
(subdirectory-exists? datadir "/themes")
(subdirectory-exists? datadir "/cursors")
(subdirectory-exists? datadir "/wallpapers")
(subdirectory-exists? datadir "/icons"))
(not (directory-included? datadir previous)))
(cons datadir previous)
previous)))
(fold glib-schemas '() inputs))
(fold data-directory '() inputs))
;; All GIO modules are expected to be installed in GLib's $libdir/gio/modules
;; directory. That directory has to include a file called giomodule.cache
;; listing all available modules. GIO can be made aware of modules in other
;; directories with the help of the environment variable GIO_EXTRA_MODULES.
;; The official GIO documentation states that this environment variable should
;; only be used for testing and not in a production environment. However, it
;; appears that there is no other way of specifying multiple modules
;; directories (NIXOS also does use this variable). See
;; https://developer.gnome.org/gio/stable/running-gio-apps.html
(define (gio-module-directories inputs)
"Check for the existence of \"$libdir/gio/modules\" in the INPUTS and
returns a list with all found directories."
(define (gio-module-directory input previous)
(let* ((in (match input
((_ . dir) dir)
(_ "")))
(gio-mod-dir (string-append in "/lib/gio/modules")))
(if (and (directory-exists? gio-mod-dir)
(not (directory-included? gio-mod-dir previous)))
(cons gio-mod-dir previous)
previous)))
(fold gio-module-directory '() inputs))
(define* (wrap-all-programs #:key inputs outputs
(glib-or-gtk-wrap-excluded-outputs '())
@ -96,27 +140,57 @@ add a dependency of that output on GLib and GTK+."
(unless (member output glib-or-gtk-wrap-excluded-outputs)
(let* ((bindir (string-append directory "/bin"))
(bin-list (find-files bindir ".*"))
(schemas (schemas-directories
(datadirs (data-directories
(alist-cons output directory inputs)))
(gtk-mod-dirs (gtk-module-directories
(alist-cons output directory inputs)))
(schemas-env-var
(if (not (null? schemas))
`("XDG_DATA_DIRS" ":" prefix ,schemas)
(gio-mod-dirs (gio-module-directories
(alist-cons output directory inputs)))
(data-env-var
(if (not (null? datadirs))
`("XDG_DATA_DIRS" ":" prefix ,datadirs)
#f))
(gtk-mod-env-var
(if (not (null? gtk-mod-dirs))
`("GTK_PATH" ":" prefix ,gtk-mod-dirs)
#f))
(gio-mod-env-var
(if (not (null? gio-mod-dirs))
`("GIO_EXTRA_MODULES" ":" prefix ,gio-mod-dirs)
#f)))
(cond
((and schemas-env-var gtk-mod-env-var)
(for-each (cut wrap-program <> schemas-env-var gtk-mod-env-var)
((and data-env-var gtk-mod-env-var gio-mod-env-var)
(for-each (cut wrap-program <>
data-env-var
gtk-mod-env-var
gio-mod-env-var)
bin-list))
(schemas-env-var
(for-each (cut wrap-program <> schemas-env-var)
((and data-env-var gtk-mod-env-var (not gio-mod-env-var))
(for-each (cut wrap-program <>
data-env-var
gtk-mod-env-var)
bin-list))
(gtk-mod-env-var
(for-each (cut wrap-program <> gtk-mod-env-var)
((and data-env-var (not gtk-mod-env-var) gio-mod-env-var)
(for-each (cut wrap-program <>
data-env-var
gio-mod-env-var)
bin-list))
((and (not data-env-var) gtk-mod-env-var gio-mod-env-var)
(for-each (cut wrap-program <>
gio-mod-env-var
gtk-mod-env-var)
bin-list))
((and data-env-var (not gtk-mod-env-var) (not gio-mod-env-var))
(for-each (cut wrap-program <>
data-env-var)
bin-list))
((and (not data-env-var) gtk-mod-env-var (not gio-mod-env-var))
(for-each (cut wrap-program <>
gtk-mod-env-var)
bin-list))
((and (not data-env-var) (not gtk-mod-env-var) gio-mod-env-var)
(for-each (cut wrap-program <>
gio-mod-env-var)
bin-list))))))))
(for-each handle-output outputs)
@ -136,12 +210,40 @@ if needed."
#t))))
outputs))
(define* (generate-icon-cache #:key outputs #:allow-other-keys)
"Implement phase \"glib-or-gtk-icon-cache\": generate icon cache if
needed."
(every (match-lambda
((output . directory)
(let ((iconsdir (string-append directory
"/share/icons")))
(with-directory-excursion iconsdir
(for-each
(lambda (dir)
(unless (file-exists?
(string-append iconsdir "/" dir "/"
"icon-theme.cache"))
(system* "gtk-update-icon-cache"
"--ignore-theme-index"
(string-append iconsdir "/" dir))))
(scandir "."
(lambda (name)
(and
(not (equal? name "."))
(not (equal? name ".."))
(equal? 'directory
(stat:type (stat name))))))))
#t)))
outputs))
(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)))
'install 'glib-or-gtk-icon-cache generate-icon-cache
(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)