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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2018 Mathieu Othacehe <m.othacehe@gmail.com>
;;;
;;; 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 installer build-installer)
#:use-module (guix packages)
#:use-module (guix gexp)
#:use-module (guix modules)
#:use-module (guix utils)
#:use-module (guix ui)
#:use-module ((guix self) #:select (make-config.scm))
#:use-module (gnu installer)
#:use-module (gnu packages admin)
#:use-module (gnu packages base)
#:use-module (gnu packages bash)
#:use-module (gnu packages connman)
#:use-module (gnu packages guile)
#:autoload (gnu packages gnupg) (guile-gcrypt)
#:use-module (gnu packages iso-codes)
#:use-module (gnu packages linux)
#:use-module (gnu packages ncurses)
#:use-module (gnu packages package-management)
#:use-module (gnu packages xorg)
#:use-module (ice-9 match)
#:use-module (srfi srfi-1)
#:export (installer-program))
(define not-config?
;; Select (guix …) and (gnu …) modules, except (guix config).
(match-lambda
(('guix 'config) #f)
(('guix rest ...) #t)
(('gnu rest ...) #t)
(rest #f)))
(define* (build-compiled-file name locale-builder)
"Return a file-like object that evalutes the gexp LOCALE-BUILDER and store
its result in the scheme file NAME. The derivation will also build a compiled
version of this file."
(define set-utf8-locale
#~(begin
(setenv "LOCPATH"
#$(file-append glibc-utf8-locales "/lib/locale/"
(version-major+minor
(package-version glibc-utf8-locales))))
(setlocale LC_ALL "en_US.utf8")))
(define builder
(with-extensions (list guile-json)
(with-imported-modules (source-module-closure
'((gnu installer locale)))
#~(begin
(use-modules (gnu installer locale))
;; The locale files contain non-ASCII characters.
#$set-utf8-locale
(mkdir #$output)
(let ((locale-file
(string-append #$output "/" #$name ".scm"))
(locale-compiled-file
(string-append #$output "/" #$name ".go")))
(call-with-output-file locale-file
(lambda (port)
(write #$locale-builder port)))
(compile-file locale-file
#:output-file locale-compiled-file))))))
(computed-file name builder))
(define apply-locale
;; Install the specified locale.
#~(lambda (locale-name)
(false-if-exception
(setlocale LC_ALL locale-name))))
(define* (compute-locale-step installer
#:key
locales-name
iso639-languages-name
iso3166-territories-name)
"Return a gexp that run the locale-page of INSTALLER, and install the
selected locale. The list of locales, languages and territories passed to
locale-page are computed in derivations named respectively LOCALES-NAME,
ISO639-LANGUAGES-NAME and ISO3166-TERRITORIES-NAME. Those lists are compiled,
so that when the installer is run, all the lengthy operations have already
been performed at build time."
(define (compiled-file-loader file name)
#~(load-compiled
(string-append #$file "/" #$name ".go")))
(let* ((supported-locales #~(supported-locales->locales
#$(local-file "aux-files/SUPPORTED")))
(iso-codes #~(string-append #$iso-codes "/share/iso-codes/json/"))
(iso639-3 #~(string-append #$iso-codes "iso_639-3.json"))
(iso639-5 #~(string-append #$iso-codes "iso_639-5.json"))
(iso3166 #~(string-append #$iso-codes "iso_3166-1.json"))
(locales-file (build-compiled-file
locales-name
#~`(quote ,#$supported-locales)))
(iso639-file (build-compiled-file
iso639-languages-name
#~`(quote ,(iso639->iso639-languages
#$supported-locales
#$iso639-3 #$iso639-5))))
(iso3166-file (build-compiled-file
iso3166-territories-name
#~`(quote ,(iso3166->iso3166-territories #$iso3166))))
(locales-loader (compiled-file-loader locales-file
locales-name))
(iso639-loader (compiled-file-loader iso639-file
iso639-languages-name))
(iso3166-loader (compiled-file-loader iso3166-file
iso3166-territories-name)))
#~(let ((result
(#$(installer-locale-page installer)
#:supported-locales #$locales-loader
#:iso639-languages #$iso639-loader
#:iso3166-territories #$iso3166-loader)))
(#$apply-locale result))))
(define apply-keymap
;; Apply the specified keymap.
#~(match-lambda
((model layout variant)
(kmscon-update-keymap model layout variant))))
(define* (compute-keymap-step installer)
"Return a gexp that runs the keymap-page of INSTALLER and install the
selected keymap."
#~(let ((result
(call-with-values
(lambda ()
(xkb-rules->models+layouts
(string-append #$xkeyboard-config
"/share/X11/xkb/rules/base.xml")))
(lambda (models layouts)
(#$(installer-keymap-page installer)
#:models models
#:layouts layouts)))))
(#$apply-keymap result)))
(define (installer-steps installer)
(let ((locale-step (compute-locale-step
installer
#:locales-name "locales"
#:iso639-languages-name "iso639-languages"
#:iso3166-territories-name "iso3166-territories"))
(keymap-step (compute-keymap-step installer))
(timezone-data #~(string-append #$tzdata
"/share/zoneinfo/zone.tab")))
#~(list
;; Welcome the user and ask him to choose between manual installation
;; and graphical install.
(installer-step
(id 'welcome)
(compute (lambda _
#$(installer-welcome-page installer))))
;; Ask the user to choose a locale among those supported by the glibc.
;; Install the selected locale right away, so that the user may
;; benefit from any available translation for the installer messages.
(installer-step
(id 'locale)
(description (G_ "Locale selection"))
(compute (lambda _
#$locale-step)))
;; Ask the user to select a timezone under glibc format.
(installer-step
(id 'timezone)
(description (G_ "Timezone selection"))
(compute (lambda _
(#$(installer-timezone-page installer)
#$timezone-data))))
;; The installer runs in a kmscon virtual terminal where loadkeys
;; won't work. kmscon uses libxkbcommon as a backend for keyboard
;; input. It is possible to update kmscon current keymap by sending it
;; a keyboard model, layout and variant, in a somehow similar way as
;; what is done with setxkbmap utility.
;;
;; So ask for a keyboard model, layout and variant to update the
;; current kmscon keymap.
(installer-step
(id 'keymap)
(description (G_ "Keyboard mapping selection"))
(compute (lambda _
#$keymap-step)))
;; Ask the user to input a hostname for the system.
(installer-step
(id 'hostname)
(description (G_ "Hostname selection"))
(compute (lambda _
#$(installer-hostname-page installer))))
;; Provide an interface above connmanctl, so that the user can select
;; a network susceptible to acces Internet.
(installer-step
(id 'network)
(description (G_ "Network selection"))
(compute (lambda _
#$(installer-network-page installer))))
;; Prompt for users (name, group and home directory).
(installer-step
(id 'hostname)
(description (G_ "User selection"))
(compute (lambda _
#$(installer-user-page installer)))))))
(define (installer-program installer)
"Return a file-like object that runs the given INSTALLER."
(define init-gettext
;; Initialize gettext support, so that installer messages can be
;; translated.
#~(begin
(bindtextdomain "guix" (string-append #$guix "/share/locale"))
(textdomain "guix")))
(define set-installer-path
;; Add the specified binary to PATH for later use by the installer.
#~(let* ((inputs
'#$(append (list bash connman shadow)
(map canonical-package (list coreutils)))))
(with-output-to-port (%make-void-port "w")
(lambda ()
(set-path-environment-variable "PATH" '("bin" "sbin") inputs)))))
(define installer-builder
(with-extensions (list guile-gcrypt guile-newt guile-json)
(with-imported-modules `(,@(source-module-closure
`(,@(installer-modules installer)
(guix build utils))
#:select? not-config?)
((guix config) => ,(make-config.scm)))
#~(begin
(use-modules (gnu installer keymap)
(gnu installer steps)
(gnu installer locale)
#$@(installer-modules installer)
(guix i18n)
(guix build utils)
(ice-9 match))
;; Initialize gettext support so that installers can use
;; (guix i18n) module.
#$init-gettext
;; Add some binaries used by the installers to PATH.
#$set-installer-path
#$(installer-init installer)
(catch #t
(lambda ()
(run-installer-steps
#:rewind-strategy 'menu
#:menu-proc #$(installer-menu-page installer)
#:steps #$(installer-steps installer)))
(const #f)
(lambda (key . args)
(#$(installer-exit-error installer) key args)
;; Be sure to call newt-finish, to restore the terminal into
;; its original state before printing the error report.
(call-with-output-file "/tmp/error"
(lambda (port)
(display-backtrace (make-stack #t) port)
(print-exception port
(stack-ref (make-stack #t) 1)
key args)))
(primitive-exit 1)))
#$(installer-exit installer)))))
(program-file "installer" installer-builder))