From 4dfe6c58ee204cf05ce9ef5abbc96ada44ef0784 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ludovic=20Court=C3=A8s?= Date: Wed, 30 Apr 2014 15:44:59 +0200 Subject: [PATCH] system: Add (guix build activation). * gnu/services/dmd.scm (dmd-configuration-file): Remove 'etc' parameter. Move /etc activation code to... * guix/build/activation.scm: ... here; new file. * gnu/system.scm (operating-system-boot-script): Augment script: add (guix build activation) to the load path; call 'activate-etc'. * Makefile.am (MODULES): Add guix/build/activation.scm. --- Makefile.am | 1 + gnu/services/dmd.scm | 27 ++--------------- gnu/system.scm | 21 +++++++++++-- guix/build/activation.scm | 63 +++++++++++++++++++++++++++++++++++++++ 4 files changed, 84 insertions(+), 28 deletions(-) create mode 100644 guix/build/activation.scm diff --git a/Makefile.am b/Makefile.am index d01032f530..22bbdca13c 100644 --- a/Makefile.am +++ b/Makefile.am @@ -71,6 +71,7 @@ MODULES = \ guix/build/rpath.scm \ guix/build/svn.scm \ guix/build/vm.scm \ + guix/build/activation.scm \ guix/packages.scm \ guix/snix.scm \ guix/scripts/download.scm \ diff --git a/gnu/services/dmd.scm b/gnu/services/dmd.scm index c187c09857..161a971edd 100644 --- a/gnu/services/dmd.scm +++ b/gnu/services/dmd.scm @@ -30,9 +30,8 @@ ;;; ;;; Code: -(define (dmd-configuration-file services etc) - "Return the dmd configuration file for SERVICES, that initializes /etc from -ETC (the derivation that builds the /etc directory) on startup." +(define (dmd-configuration-file services) + "Return the dmd configuration file for SERVICES." (define config #~(begin (use-modules (ice-9 ftw)) @@ -48,28 +47,6 @@ ETC (the derivation that builds the /etc directory) on startup." #:stop #$(service-stop service))) services)) - ;; /etc is a mixture of static and dynamic settings. Here is where we - ;; initialize it from the static part. - (format #t "populating /etc from ~a...~%" #$etc) - (let ((rm-f (lambda (f) - (false-if-exception (delete-file f))))) - (rm-f "/etc/static") - (symlink #$etc "/etc/static") - (for-each (lambda (file) - ;; TODO: Handle 'shadow' specially so that changed - ;; password aren't lost. - (let ((target (string-append "/etc/" file)) - (source (string-append "/etc/static/" file))) - (rm-f target) - (symlink source target))) - (scandir #$etc - (lambda (file) - (not (member file '("." "..")))))) - - ;; Prevent ETC from being GC'd. - (rm-f "/var/guix/gcroots/etc-directory") - (symlink #$etc "/var/guix/gcroots/etc-directory")) - ;; guix-daemon 0.6 aborts if 'PATH' is undefined, so work around it. (setenv "PATH" "/run/current-system/bin") diff --git a/gnu/system.scm b/gnu/system.scm index 86904d9be2..4a85857582 100644 --- a/gnu/system.scm +++ b/gnu/system.scm @@ -256,10 +256,25 @@ we're running in the final root." (mlet* %store-monad ((services (sequence %store-monad (operating-system-services os))) (etc (operating-system-etc-directory os)) - (dmd-conf (dmd-configuration-file services etc))) + (modules (imported-modules '((guix build activation)))) + (compiled (compiled-modules '((guix build activation)))) + (dmd-conf (dmd-configuration-file services))) (gexp->file "boot" - #~(execl (string-append #$dmd "/bin/dmd") - "dmd" "--config" #$dmd-conf)))) + #~(begin + (eval-when (expand load eval) + ;; Make sure 'use-modules' below succeeds. + (set! %load-path (cons #$modules %load-path)) + (set! %load-compiled-path + (cons #$compiled %load-compiled-path))) + + (use-modules (guix build activation)) + + ;; Populate /etc. + (activate-etc #$etc) + + ;; Start dmd. + (execl (string-append #$dmd "/bin/dmd") + "dmd" "--config" #$dmd-conf))))) (define (operating-system-derivation os) "Return a derivation that builds OS." diff --git a/guix/build/activation.scm b/guix/build/activation.scm new file mode 100644 index 0000000000..c8491677d3 --- /dev/null +++ b/guix/build/activation.scm @@ -0,0 +1,63 @@ +;;; GNU Guix --- Functional package management for GNU +;;; Copyright © 2013, 2014 Ludovic Courtès +;;; +;;; 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 . + +(define-module (guix build activation) + #:use-module (ice-9 ftw) + #:export (activate-etc)) + +;;; Commentary: +;;; +;;; This module provides "activation" helpers. Activation is the process that +;;; consists in setting up system-wide files and directories so that an +;;; 'operating-system' configuration becomes active. +;;; +;;; Code: + +(define (activate-etc etc) + "Install ETC, a directory in the store, as the source of static files for +/etc." + + ;; /etc is a mixture of static and dynamic settings. Here is where we + ;; initialize it from the static part. + + (format #t "populating /etc from ~a...~%" etc) + (let ((rm-f (lambda (f) + (false-if-exception (delete-file f))))) + (rm-f "/etc/static") + (symlink etc "/etc/static") + (for-each (lambda (file) + ;; TODO: Handle 'shadow' specially so that changed + ;; password aren't lost. + (let ((target (string-append "/etc/" file)) + (source (string-append "/etc/static/" file))) + (rm-f target) + (symlink source target))) + (scandir etc + (lambda (file) + (not (member file '("." "..")))) + + ;; The default is 'string-locale