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-rw-r--r--gnu/installer/final.scm30
-rw-r--r--gnu/installer/newt.scm2
-rw-r--r--gnu/installer/utils.scm26
3 files changed, 39 insertions, 19 deletions
diff --git a/gnu/installer/final.scm b/gnu/installer/final.scm
index 044f79372b..069426a3b8 100644
--- a/gnu/installer/final.scm
+++ b/gnu/installer/final.scm
@@ -1,6 +1,6 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2018, 2020 Mathieu Othacehe <[email protected]>
-;;; Copyright © 2019, 2020 Ludovic Courtès <[email protected]>
+;;; Copyright © 2019, 2020, 2022 Ludovic Courtès <[email protected]>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -114,6 +114,8 @@ it can interact with the rest of the system."
;; Catch SIGINT and kill the container process.
(sigaction SIGINT
(lambda (signum)
+ ;: FIXME: Use of SIGKILL prevents the dynamic-wind exit handler of
+ ;; THUNK to run.
(false-if-exception
(kill pid SIGKILL))))
@@ -196,14 +198,16 @@ or #f. Return #t on success and #f on failure."
;; the loaded cow-store locale files will prevent umounting.
(install-locale locale)
- ;; Save the database, so that it can be restored once the
- ;; cow-store is umounted.
+ ;; Stop the daemon and save the database, so that it can be
+ ;; restored once the cow-store is umounted.
+ (stop-service 'guix-daemon)
(copy-file database-file saved-database)
+
+ (installer-log-line "mounting copy-on-write store")
(mount-cow-store (%installer-target-dir) backing-directory))
(lambda ()
;; We need to drag the guix-daemon to the container MNT
;; namespace, so that it can operate on the cow-store.
- (stop-service 'guix-daemon)
(start-service 'guix-daemon (list (number->string (getpid))))
(setvbuf (current-output-port) 'none)
@@ -213,11 +217,25 @@ or #f. Return #t on success and #f on failure."
(set! ret (run-command install-command #:tty? #t)))
(lambda ()
- ;; Restart guix-daemon so that it does no keep the MNT namespace
+ ;; Stop guix-daemon so that it does no keep the MNT namespace
;; alive.
- (restart-service 'guix-daemon)
+ (stop-service 'guix-daemon)
+
+ ;; Restore the database and restart it. As part of restoring the
+ ;; database, remove the WAL and shm files in case they were left
+ ;; behind after guix-daemon was stopped. Failing to do so,
+ ;; sqlite might behave as if transactions that appear in the WAL
+ ;; file were committed. (See <https://www.sqlite.org/wal.html>.)
+ (installer-log-line "restoring store database from '~a'"
+ saved-database)
(copy-file saved-database database-file)
+ (for-each (lambda (suffix)
+ (false-if-exception
+ (delete-file (string-append database-file suffix))))
+ '("-wal" "-shm"))
+ (start-service 'guix-daemon)
;; Finally umount the cow-store and exit the container.
+ (installer-log-line "unmounting copy-on-write store")
(unmount-cow-store (%installer-target-dir) backing-directory)
(assert-exit ret))))))))
diff --git a/gnu/installer/newt.scm b/gnu/installer/newt.scm
index 798ff53af2..e1c4453168 100644
--- a/gnu/installer/newt.scm
+++ b/gnu/installer/newt.scm
@@ -116,7 +116,7 @@ report it by email to ~a.") uploaded-name %guix-bug-report-address)
(define command-output "")
(define (line-accumulator line)
(set! command-output
- (string-append/shared command-output line "\n")))
+ (string-append/shared command-output line)))
(define result (run-external-command-with-line-hooks (list line-accumulator)
args))
(define exit-val (status:exit-val result))
diff --git a/gnu/installer/utils.scm b/gnu/installer/utils.scm
index 061493e6a7..6838410166 100644
--- a/gnu/installer/utils.scm
+++ b/gnu/installer/utils.scm
@@ -1,6 +1,6 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2018, 2020 Mathieu Othacehe <[email protected]>
-;;; Copyright © 2019, 2020 Ludovic Courtès <[email protected]>
+;;; Copyright © 2019, 2020, 2022 Ludovic Courtès <[email protected]>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -159,7 +159,9 @@ COMMAND will be run in a pseudoterminal. Returns the integer status value of
the child process as returned by waitpid."
(define (handler input)
(and
- (and=> (get-line input)
+ ;; Lines for progress bars etc. end in \r; treat is as a line ending so
+ ;; those lines are printed right away.
+ (and=> (read-delimited "\r\n" input 'concat)
(lambda (line)
(if (eof-object? line)
#f
@@ -186,7 +188,7 @@ in a pseudoterminal."
(installer-log-line "running command ~s" command)
(define result (run-external-command-with-line-hooks
- (list %display-line-hook) command
+ (list display) command
#:tty? tty?))
(define exit-val (status:exit-val result))
(define term-sig (status:term-sig result))
@@ -264,7 +266,10 @@ values."
(or port (%make-void-port "w")))))
(define (%syslog-line-hook line)
- (format (syslog-port) "installer[~d]: ~a~%" (getpid) line))
+ (let ((line (if (string-suffix? "\r" line)
+ (string-append (string-drop-right line 1) "\n")
+ line)))
+ (format (syslog-port) "installer[~d]: ~a" (getpid) line)))
(define-syntax syslog
(lambda (s)
@@ -293,11 +298,7 @@ values."
port)))
(define (%installer-log-line-hook line)
- (format (installer-log-port) "~a~%" line))
-
-(define (%display-line-hook line)
- (display line)
- (newline))
+ (display line (installer-log-port)))
(define %default-installer-line-hooks
(list %syslog-line-hook
@@ -309,9 +310,10 @@ values."
(syntax-case s ()
((_ fmt args ...)
(string? (syntax->datum #'fmt))
- #'(let ((formatted (format #f fmt args ...)))
- (for-each (lambda (f) (f formatted))
- %default-installer-line-hooks))))))
+ (with-syntax ((fmt (string-append (syntax->datum #'fmt) "\n")))
+ #'(let ((formatted (format #f fmt args ...)))
+ (for-each (lambda (f) (f formatted))
+ %default-installer-line-hooks)))))))
;;;