guix/gnu/system/locale.scm
Ludovic Courtès 46bd6edd5a gnu: libc: Look for locale data under /run/current-system/locale/X.Y.
* gnu/packages/base.scm (glibc)[arguments]: Append VERSION to
  'libc_cv_localedir'.
* gnu/system/locale.scm (localedef-command): Write to the sub-directory
  called (package-version libc) in #$output.
  (locale-directory): Create said directory.
* doc/guix.texi (Locales): Mention the per-version sub-directory.
2015-09-30 17:06:40 +02:00

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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014, 2015 Ludovic Courtès <ludo@gnu.org>
;;;
;;; 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 system locale)
#:use-module (guix gexp)
#:use-module (guix records)
#:use-module (guix packages)
#:use-module (gnu packages base)
#:use-module (gnu packages compression)
#:use-module (srfi srfi-26)
#:export (locale-definition
locale-definition?
locale-definition-name
locale-definition-source
locale-definition-charset
locale-directory
%default-locale-definitions))
;;; Commentary:
;;;
;;; Locale definitions, and compilation thereof.
;;;
;;; Code:
(define-record-type* <locale-definition> locale-definition
make-locale-definition
locale-definition?
(name locale-definition-name) ;string--e.g., "fr_FR.utf8"
(source locale-definition-source) ;string--e.g., "fr_FR"
(charset locale-definition-charset ;string--e.g., "UTF-8"
(default "UTF-8")))
(define* (localedef-command locale
#:key (libc (canonical-package glibc)))
"Return a gexp that runs 'localedef' from LIBC to build LOCALE."
#~(begin
(format #t "building locale '~a'...~%"
#$(locale-definition-name locale))
(zero? (system* (string-append #$libc "/bin/localedef")
"--no-archive" "--prefix" #$output
"-i" #$(locale-definition-source locale)
"-f" #$(locale-definition-charset locale)
(string-append #$output "/"
#$(package-version libc) "/"
#$(locale-definition-name locale))))))
(define* (locale-directory locales
#:key (libc (canonical-package glibc)))
"Return a directory containing all of LOCALES for LIBC compiled.
Because locale data formats are incompatible when switching from one libc to
another, locale data is put in a sub-directory named after the 'version' field
of LIBC."
(define build
#~(begin
(mkdir #$output)
(mkdir (string-append #$output "/" #$(package-version libc)))
;; 'localedef' executes 'gzip' to access compressed locale sources.
(setenv "PATH" (string-append #$gzip "/bin"))
(exit
(and #$@(map (cut localedef-command <> #:libc libc)
locales)))))
(gexp->derivation "locale" build
#:local-build? #t))
(define %default-locale-definitions
;; Arbitrary set of locales that are built by default. They are here mostly
;; to facilitate first-time use to some people, while others may have to add
;; a specific <locale-definition>.
(letrec-syntax ((utf8-locale (syntax-rules ()
((_ name*)
(locale-definition
;; Note: We choose "utf8", which is the
;; "normalized codeset".
(name (string-append name* ".utf8"))
(source name*)
(charset "UTF-8")))))
(utf8-locales (syntax-rules ()
((_ name ...)
(list (utf8-locale name) ...)))))
;; Add "en_US.UTF-8" for compatibility with Guix 0.8.
(cons (locale-definition
(name "en_US.UTF-8")
(source "en_US")
(charset "UTF-8"))
(utf8-locales "ca_ES"
"cs_CZ"
"da_DK"
"de_DE"
"el_GR"
"en_AU"
"en_CA"
"en_GB"
"en_US"
"es_AR"
"es_CL"
"es_ES"
"es_MX"
"fi_FI"
"fr_BE"
"fr_CA"
"fr_CH"
"fr_FR"
"ga_IE"
"it_IT"
"ja_JP"
"ko_KR"
"nb_NO"
"nl_NL"
"pl_PL"
"pt_PT"
"ro_RO"
"ru_RU"
"sv_SE"
"tr_TR"
"uk_UA"
"vi_VN"
"zh_CN"))))
;;; locale.scm ends here