From 34760ae7031b19529aff2355cc458f61a8daa41f Mon Sep 17 00:00:00 2001 From: Ludovic Courtès Date: Fri, 30 Oct 2015 23:05:52 +0100 Subject: system: Add 'locale-libcs' field. * gnu/system/locale.scm (localedef-command)[maybe-version-directory]: New procedure. Use it. (locale-directory): Rename to... (single-locale-directory): ... this. Check the version of LIBC to determine whether to create a "X.Y" sub-directory or to make it a symlink to ".". Add the version number in the derivation name. (locale-directory): New procedure. (%default-locale-libcs): New variable. * gnu/system.scm ()[locale-libcs]: New field. (operating-system-locale-directory): Pass it to 'locale-directory'. * doc/guix.texi (operating-system Reference): Document 'locale-libcs'. (Locales)[Locale Data Compatibility Considerations]: New section. --- gnu/system.scm | 6 ++++- gnu/system/locale.scm | 62 ++++++++++++++++++++++++++++++++++++++++++++++----- 2 files changed, 62 insertions(+), 6 deletions(-) (limited to 'gnu') diff --git a/gnu/system.scm b/gnu/system.scm index 3d570c0d1f..8fed857b39 100644 --- a/gnu/system.scm +++ b/gnu/system.scm @@ -76,6 +76,7 @@ operating-system-timezone operating-system-locale operating-system-locale-definitions + operating-system-locale-libcs operating-system-mapped-devices operating-system-file-systems operating-system-activation-script @@ -144,6 +145,8 @@ (default "en_US.utf8")) (locale-definitions operating-system-locale-definitions ; list of (default %default-locale-definitions)) + (locale-libcs operating-system-locale-libcs ; list of + (default %default-locale-libcs)) (name-service-switch operating-system-name-service-switch ; (default %default-nss)) @@ -643,7 +646,8 @@ listed in OS. The C library expects to find it under (raise (condition (&message (message "system locale lacks a definition"))))) - (locale-directory (operating-system-locale-definitions os))) + (locale-directory (operating-system-locale-definitions os) + #:libcs (operating-system-locale-libcs os))) (define (kernel->grub-label kernel) "Return a label for the GRUB menu entry that boots KERNEL." diff --git a/gnu/system/locale.scm b/gnu/system/locale.scm index 010fb45272..e798827a01 100644 --- a/gnu/system/locale.scm +++ b/gnu/system/locale.scm @@ -18,11 +18,15 @@ (define-module (gnu system locale) #:use-module (guix gexp) + #:use-module (guix store) + #:use-module (guix monads) #:use-module (guix records) #:use-module (guix packages) + #:use-module (guix utils) #:use-module (gnu packages base) #:use-module (gnu packages compression) #:use-module (srfi srfi-26) + #:use-module (ice-9 match) #:export (locale-definition locale-definition? locale-definition-name @@ -31,6 +35,7 @@ locale-directory + %default-locale-libcs %default-locale-definitions)) ;;; Commentary: @@ -50,6 +55,15 @@ (define* (localedef-command locale #:key (libc (canonical-package glibc))) "Return a gexp that runs 'localedef' from LIBC to build LOCALE." + (define (maybe-version-directory) + ;; XXX: For libc prior to 2.22, GuixSD did not store locale data in a + ;; version-specific sub-directory. Check whether this is the case. + ;; TODO: Remove this hack once libc 2.21 is buried. + (let ((version (package-version libc))) + (if (version>=? version "2.22") + (list version "/") + '()))) + #~(begin (format #t "building locale '~a'...~%" #$(locale-definition-name locale)) @@ -58,20 +72,29 @@ "-i" #$(locale-definition-source locale) "-f" #$(locale-definition-charset locale) (string-append #$output "/" - #$(package-version libc) "/" + #$@(maybe-version-directory) #$(locale-definition-name locale)))))) -(define* (locale-directory locales - #:key (libc (canonical-package glibc))) +(define* (single-locale-directory locales + #:key (libc (canonical-package glibc))) "Return a directory containing all of LOCALES for LIBC compiled. Because locale data formats are incompatible when switching from one libc to another, locale data is put in a sub-directory named after the 'version' field of LIBC." + (define version + (package-version libc)) + (define build #~(begin (mkdir #$output) - (mkdir (string-append #$output "/" #$(package-version libc))) + + ;; XXX: For libcs < 2.22, locale data is stored in the top-level + ;; directory. + ;; TODO: Remove this hack once libc 2.21 is buried. + #$(if (version>=? version "2.22") + #~(mkdir (string-append #$output "/" #$version)) + #~(symlink "." (string-append #$output "/" #$version))) ;; 'localedef' executes 'gzip' to access compressed locale sources. (setenv "PATH" (string-append #$gzip "/bin")) @@ -80,9 +103,38 @@ of LIBC." (and #$@(map (cut localedef-command <> #:libc libc) locales))))) - (gexp->derivation "locale" build + (gexp->derivation (string-append "locale-" version) build #:local-build? #t)) +(define* (locale-directory locales + #:key (libcs %default-locale-libcs)) + "Return a locale directory containing all of LOCALES for each libc package +listed in LIBCS. + +It is useful to list more than one libc when willing to support +already-installed packages built against a different libc since the locale +data format changes between libc versions." + (match libcs + ((libc) + (single-locale-directory locales #:libc libc)) + ((libcs ..1) + (mlet %store-monad ((dirs (mapm %store-monad + (lambda (libc) + (single-locale-directory locales + #:libc libc)) + libcs))) + (gexp->derivation "locale-multiple-versions" + #~(begin + (use-modules (guix build union)) + (union-build #$output (list #$@dirs))) + #:modules '((guix build union)) + #:local-build? #t + #:substitutable? #f))))) + +(define %default-locale-libcs + ;; The libcs for which we build locales by default. + (list (canonical-package glibc))) + (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 -- cgit v1.2.3