When the user aborts the installation because a core dump is discovered or the installation command failed, displaying the abort backtrace doesn't make much sense. Hide it when the abort condition is &user-abort-error and skip directly to the dump page. * gnu/installer/steps.scm (&user-abort-error): New variable. (user-abort-error?): New procedure. * gnu/installer/newt/final.scm (run-install-failed-page): Raise a user-abort-error. * gnu/installer/newt/welcome.scm (run-welcome-page): Ditto. * gnu/installer.scm (installer-program): Hide the backtrace page and directly propose to dump the report when the a &user-abort-error is raised.
		
			
				
	
	
		
			175 lines
		
	
	
	
		
			6.6 KiB
		
	
	
	
		
			Scheme
		
	
	
	
	
	
			
		
		
	
	
			175 lines
		
	
	
	
		
			6.6 KiB
		
	
	
	
		
			Scheme
		
	
	
	
	
	
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2018 Mathieu Othacehe <m.othacehe@gmail.com>
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;;; Copyright © 2020 Ludovic Courtès <ludo@gnu.org>
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;;; Copyright © 2022 Florian Pelz <pelzflorian@pelzflorian.de>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
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(define-module (gnu installer newt welcome)
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  #:use-module ((gnu build linux-modules)
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                #:select (modules-loaded))
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  #:use-module (gnu installer dump)
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  #:use-module (gnu installer steps)
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  #:use-module (gnu installer utils)
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  #:use-module (gnu installer newt page)
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  #:use-module (gnu installer newt utils)
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  #:use-module (guix build syscalls)
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  #:use-module (guix i18n)
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  #:use-module (srfi srfi-1)
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  #:use-module (srfi srfi-34)
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  #:use-module (srfi srfi-35)
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  #:use-module (ice-9 match)
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  #:use-module (ice-9 receive)
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  #:use-module (newt)
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  #:export (run-welcome-page))
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;; Expected width and height for the logo.
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(define logo-width (make-parameter 43))
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(define logo-height (make-parameter 19))
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(define info-textbox-width (make-parameter 70))
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(define options-listbox-height (make-parameter 5))
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(define (display-logo?)
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  (> (screen-rows) 35))
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(define* (run-menu-page title info-text logo
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                        #:key
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                        listbox-items
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                        listbox-item->text)
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  "Run a page with the given TITLE, to ask the user to choose between
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LISTBOX-ITEMS displayed in a listbox. The listbox items are converted to text
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using LISTBOX-ITEM->TEXT procedure. Display the textual LOGO in the center of
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the page. Contrary to other pages, we cannot resort to grid layouts, because
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we want this page to occupy all the screen space available."
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  (define (fill-listbox listbox items)
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    (map (lambda (item)
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           (let* ((text (listbox-item->text item))
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                  (key (append-entry-to-listbox listbox text)))
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             (cons key item)))
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         items))
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  (let* ((logo-textbox
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          (make-textbox -1 -1
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                        (if (display-logo?) (logo-width) 0)
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                        (if (display-logo?) (logo-height) 0)
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                        0))
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         (info-textbox
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          (make-reflowed-textbox -1 -1
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                                 info-text
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                                 (info-textbox-width)))
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         (options-listbox
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          (make-listbox -1 -1
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                        (options-listbox-height)
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                        (logior FLAG-BORDER FLAG-RETURNEXIT)))
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         (keys (fill-listbox options-listbox listbox-items))
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         (grid (vertically-stacked-grid
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                GRID-ELEMENT-COMPONENT logo-textbox
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                GRID-ELEMENT-COMPONENT info-textbox
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                GRID-ELEMENT-COMPONENT options-listbox))
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         (form (make-form)))
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    (define (choice->item str)
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      ;; Return the item that corresponds to STR.
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      (match (find (match-lambda
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                     ((key . item)
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                      (string=? str (listbox-item->text item))))
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                   keys)
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        ((key . item) item)
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        (#f (abort-to-prompt 'installer-step 'abort))))
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    (set-textbox-text logo-textbox (read-all logo))
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    (add-form-to-grid grid form #t)
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    (make-wrapped-grid-window grid title)
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    (receive (exit-reason argument)
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        (run-form-with-clients form
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                               `(menu (title ,title)
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                                      (text ,info-text)
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                                      (items
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                                       ,(map listbox-item->text
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                                             listbox-items))))
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      (dynamic-wind
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        (const #t)
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        (lambda ()
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          (match exit-reason
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            ('exit-component
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             (let* ((entry (current-listbox-entry options-listbox))
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                    (item (assoc-ref keys entry)))
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               (match item
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                 ((text . proc)
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                  (proc)))))
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            ('exit-fd-ready
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             (let* ((choice argument)
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                    (item   (choice->item choice)))
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               (match item
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                 ((text . proc)
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                  (proc)))))))
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        (lambda ()
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          (destroy-form-and-pop form))))))
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(define (run-welcome-page logo)
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  "Run a welcome page with the given textual LOGO displayed at the center of
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the page. Ask the user to choose between manual installation, graphical
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installation and reboot."
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  (begin
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    (when (member "uvesafb" (modules-loaded))
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      (run-error-page (G_ "\
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This may be a false alarm, but possibly your graphics hardware does not
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work well with only free software.  Expect trouble.  If after installation,
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the system does not boot, perhaps you will need to add nomodeset to the
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kernel arguments and need to configure the uvesafb kernel module.")
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                      (G_ "Pre-install warning")))
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    (when (file-exists? %core-dump)
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      (match
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          (choice-window
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           (G_ "Previous installation failed")
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           (G_ "Continue")
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           (G_ "Report the failure")
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           (G_ "It seems that the previous installation exited unexpectedly \
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and generated a core dump.  Do you want to continue or to report the failure \
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first?"))
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        (1 #t)
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        (2 (raise
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            (condition
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             (&user-abort-error))))))
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    (run-menu-page
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     (G_ "GNU Guix install")
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     (G_ "Welcome to GNU Guix system installer!
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You will be guided through a graphical installation program.
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If you are familiar with GNU/Linux and you want tight control over \
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the installation process, you can instead choose manual installation.  \
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Documentation is accessible at any time by pressing Ctrl-Alt-F2.")
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     logo
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     #:listbox-items
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     `((,(G_ "Graphical install using a terminal based interface")
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        .
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        ,(const #t))
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       (,(G_ "Install using the shell based process")
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        .
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        ,(lambda ()
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           ;; Switch to TTY3, where a root shell is available for shell based
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           ;; install. The other root TTY's would have been ok too.
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           (system* "chvt" "3")
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           (run-welcome-page logo)))
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       (,(G_ "Reboot")
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        .
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        ,(lambda ()
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           (newt-finish)
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           (reboot))))
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     #:listbox-item->text car)))
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