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installer: Support dry-run from Guile via store.

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This supports running the installer quasi-directly from Guile by only building
a Guile installer-script in the store.  Do something like:

    ./pre-inst-env guile -c '((@ (gnu installer) run-installer) #:dry-run? #t)'

or and BE VERY CAREFUL WHEN NOT USING #:DRY-RUN #T!

    sudo -E ./pre-inst-env guile -c '((@ (gnu installer) run-installer))'

for this to work, you also need connman.

* gnu/installer.scm (installer-script, run-installer): New procedures.

Change-Id: I8cc1746845ec99f738e35fa91bb2342a674cfa88
This commit is contained in:
Janneke Nieuwenhuizen
2024-10-20 13:43:17 +02:00
committed by Jan (janneke) Nieuwenhuizen
parent 711855cb00
commit 035e5f0c74
1 changed files with 83 additions and 2 deletions
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85
gnu/installer.scm
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@@ -21,10 +21,14 @@
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (gnu installer)
#:use-module (guix build utils)
#:use-module (guix derivations)
#:use-module (guix discovery)
#:use-module (guix packages)
#:use-module (guix gexp)
#:use-module (guix modules)
#:use-module (guix monads)
#:use-module (guix packages)
#:use-module (guix store)
#:use-module (guix utils)
#:use-module (guix ui)
#:use-module ((guix self) #:select (make-config.scm))
@@ -56,7 +60,9 @@
#:use-module (ice-9 match)
#:use-module (srfi srfi-1)
#:use-module (web uri)
#:export (installer-program))
#:export (installer-program
installer-steps
run-installer))
(define module-to-import?
;; Return true for modules that should be imported. For (gnu system …) and
@@ -562,3 +568,78 @@ purposes."
(execl #$(program-file "installer-real" installer-builder
#:guile guile-3.0-latest)
"installer-real"))))
(define* (installer-script #:key dry-run?
(steps (installer-steps #:dry-run? dry-run?)))
(program-file
"installer-script"
#~(begin
(use-modules (gnu installer)
(gnu installer record)
(gnu installer keymap)
(gnu installer steps)
(gnu installer dump)
(gnu installer final)
(gnu installer hostname)
(gnu installer kernel)
(gnu installer locale)
(gnu installer parted)
(gnu installer services)
(gnu installer timezone)
(gnu installer user)
(gnu installer utils)
(gnu installer newt)
((gnu installer newt keymap)
#:select (keyboard-layout->configuration))
(gnu services herd)
(guix i18n)
(guix build utils)
(guix utils)
((system repl debug)
#:select (terminal-width))
(ice-9 match)
(ice-9 textual-ports))
(terminal-width 200)
(let* ((current-installer newt-installer)
(steps (#$steps current-installer)))
(catch #t
(lambda _
((installer-init current-installer))
(parameterize ((%run-command-in-installer
(if #$dry-run?
dry-run-command
(installer-run-command current-installer)))
(%installer-configuration-file
(if #$dry-run?
"config.scm"
(%installer-configuration-file))))
(let ((results (run-installer-steps
#:rewind-strategy 'menu
#:menu-proc
(installer-menu-page current-installer)
#:steps steps
#:dry-run? #$dry-run?)))
(result-step results 'final)
((installer-exit current-installer)))))
(const #f)
(lambda (key . args)
(sleep 10)
((installer-exit current-installer))
(display-backtrace (make-stack #t) (current-error-port))
(apply throw key args)))))))
(define* (run-installer #:key dry-run?)
"To run the installer from Guile without building it:
./pre-inst-env guile -c '((@ (gnu installer) run-installer) #:dry-run? #t)'
when using #:dry-run? #t, no root access is required and the LOCALE, KEYMAP,
and PARTITION pages are skipped."
(let* ((script (installer-script #:dry-run? dry-run?))
(store (open-connection))
(drv (run-with-store store
(lower-object script)))
(program (match (derivation->output-paths drv)
((("out" . program)) program)))
(outputs (build-derivations store (list drv))))
(close-connection store)
(format #t "running installer: ~a\n" program)
(invoke "./pre-inst-env" "guile" program)))