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guix system: Invoking 'guix system init' twice keeps timestamps zeroed. 

Fixes a bug whereby running 'guix system init config.scm /mnt' twice
would, on the second run, change timestamps in /mnt/gnu/store from the
Epoch to now.  This is because the 'register-path' call would bypass the
'reset-timestamps' phase altogether in that case, as a consequence of
commit bb3b6ccb05.

Reported by Christopher Baines.

* guix/scripts/system.scm (install): When TARGET/var/guix exists, delete
it.  As a side-effect, this ensures that later on, the 'register-path'
call invokes 'reset-timestamps' on all the copied store items.
This commit is contained in:
Ludovic Courtès 2018-11-11 23:48:53 +01:00
parent 652163154c
commit 6c843907e9
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GPG Key ID: 090B11993D9AEBB5
1 changed files with 7 additions and 0 deletions
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guix/scripts/system.scm
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@ -235,6 +235,13 @@ When INSTALL-BOOTLOADER? is true, install bootloader using BOOTCFG."
the ownership of '~a' may be incorrect!~%")
target))
;; If a previous installation was attempted, make sure we start anew; in
;; particular, we don't want to keep a store database that might not
;; correspond to what we're actually putting in the store.
(let ((state (string-append target "/var/guix")))
(when (file-exists? state)
(delete-file-recursively state)))
(chmod target #o755)
(let ((os-dir (derivation->output-path os-drv))
(format (lift format %store-monad))