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* scripts: Pass #:verbosity to 'build-notifier'.Ludovic Courtès2020-08-03
| | | | | | | | | | | | | | | * guix/scripts/archive.scm (guix-archive): Pass #:verbosity to 'build-notifier'. * guix/scripts/build.scm (guix-build): Likewise. * guix/scripts/copy.scm (guix-copy): Likewise. * guix/scripts/deploy.scm (guix-deploy): Likewise. * guix/scripts/environment.scm (guix-environment): Likewise. * guix/scripts/pack.scm (guix-pack): Likewise. * guix/scripts/package.scm (guix-package*): Likewise. * guix/scripts/pull.scm (guix-pull): Likewise. * guix/scripts/system.scm (verbosity-level): New procedure. (process-action): Pass #:verbosity to 'build-notifier'. (guix-system): Use 'verbosity-level' for 'with-status-verbosity'.
* guix system: Report file system errors using 'report-error'.Ludovic Courtès2020-07-25
| | | | | | | * guix/scripts/system.scm (check-file-system-availability)[file-system-location*]: Return a <location> record instead of a string. [error]: Use 'report-error' instead of 'format'. Change callers accordingly.
* guix system: 'reconfigure' disallows downgrades by default.Ludovic Courtès2020-07-23
| | | | | | | | | | | | | | | | This is similar to what 9744cc7b4636fafb772c94adb8f05961b5b39f16 did for 'guix pull'. * guix/scripts/system/reconfigure.scm (ensure-forward-reconfigure) (warn-about-backward-reconfigure, channel-relations) (check-forward-update): New procedures. * guix/scripts/system.scm (perform-action): Add #:validate-reconfigure. Call 'check-forward-update' when ACTION is 'reconfigure. (%options, show-help): Add "--allow-downgrades". (%default-options): Add 'validate-reconfigure' key. (process-action): Pass #:validate-reconfigure to 'perform-action'. * doc/guix.texi (Invoking guix system): Document 'guix system describe' more prominently, and document '--allow-downgrades'.
* services: Add 'system-provenance' procedure.Ludovic Courtès2020-07-15
| | | | | | | * gnu/services.scm (sexp->channel, system-provenance): New procedures. * guix/scripts/system.scm (sexp->channel): Remove. (display-system-generation): Use 'system-provenance' instead of parsing the "provenance" file right here.
* guix system: "describe" displays multiboot info.Jan (janneke) Nieuwenhuizen2020-07-03
| | | | | * guix/scripts/system.scm (display-system-generation): Display multiboot-modules commands if set.
* services: provenance: Save channel introductions.Ludovic Courtès2020-07-01
| | | | | | | | * gnu/services.scm (channel->code): Include CHANNEL's introduction, if any, unless CHANNEL is the singleton %DEFAULT-CHANNELS. (channel->sexp): Add comment. * guix/scripts/system.scm (sexp->channel): Change pattern to allow for extensibility.
* Add more (ice-9 format) imports.Ludovic Courtès2020-06-26
| | | | | * guix/scripts/describe.scm: Add missing (ice-9 format). * guix/scripts/system.scm: Likewise.
* scripts: system: Fix "init" command.Mathieu Othacehe2020-06-14
| | | | | | | | This is a follow-up of 7ca533c7237622d70b423033c4506217d9ce4014. The introduced "target" variable is shadowing the target argument. * guix/scripts/system.scm (perform-action): Rename "target" variable to "target*".
* image: Make 'find-image' non-monadic.Jan (janneke) Nieuwenhuizen2020-06-13
| | | | | | | | * gnu/system/image.scm (find-image): Make non-monadic. Add 'target' parameter. * gnu/tests/install.scm (run-install): Update caller, passing (%current-target-system). * guix/scripts/system.scm (perform-action): Likewise.
* image: Do not use VM to create disk-images.Mathieu Othacehe2020-05-29
| | | | | | | | | | | | | | | | Now that installing Grub on raw disk-images is supported, we do not need to rely on (gnu system vm) module. * gnu/system/image.scm (make-system-image): Rename to ... (system-image): ... this, and remove the compatibility wrapper. (find-image): Turn to a monadic procedure. This will become useful when introducing Hurd support, to be able to detect the target system. * gnu/ci.scm (qemu-jobs): Use lower-object now that system-image returns a file-like object. * gnu/tests/install.scm (run-install): Ditto. * guix/scripts/system.scm (system-derivation-for-action): Add a 'base-image' argument, (perform-action): adapt accordingly.
* guix system: 'docker-image' honors '--network'.Ludovic Courtès2020-05-07
| | | | | | | | | * gnu/system/vm.scm (system-docker-image): Add #:shared-network? and pass it to 'containerized-operating-system'. (qemu-image): * guix/scripts/system.scm (system-derivation-for-action): Pass #:shared-network? to 'system-docker-image'. * doc/guix.texi (Invoking guix system): Document it.
* image: Add a new API.Mathieu Othacehe2020-05-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | Raw disk-images and ISO9660 images are created in a Qemu virtual machine. This is quite fragile, very slow, and almost unusable without KVM. For all these reasons, add support for host image generation. This implies the use new image generation mechanisms. - Raw disk images: images of partitions are created using tools such as mke2fs and mkdosfs depending on the partition file-system type. The partition images are then assembled into a final image using genimage. - ISO9660 images: the ISO root directory is populated within the store. GNU xorriso is then called on that directory, in the exact same way as this is done in (gnu build vm) module. Those mechanisms are built upon the new (gnu image) module. * gnu/image.scm: New file. * gnu/system/image.scm: New file. * gnu/build/image: New file. * gnu/local.mk: Add them. * gnu/system/vm.scm (system-disk-image): Rename to system-disk-image-in-vm. * gnu/ci.scm (qemu-jobs): Adapt to new API. * gnu/tests/install.scm (run-install): Ditto. * guix/scripts/system.scm (system-derivation-for-action): Ditto.
* guix system: Mention 'herd restart' when reconfigure completes.Ludovic Courtès2020-04-03
| | | | | | | | * guix/scripts/system.scm (with-shepherd-error-handling): Use 'mbegin' instead of 'begin'. (perform-action): Print a message after 'upgrade-shepherd-services'. That message had disappeared in commit 5c8c8c455420af27189d6045b3599fe6e27ad012.
* guix system: Remove unused procedure.Ludovic Courtès2020-04-03
| | | | | | | This procedure was unused since 5c8c8c455420af27189d6045b3599fe6e27ad012. * guix/scripts/system.scm (call-with-service-upgrade-info): Remove.
* guix system: Use 'mapm/accumulate-builds'.Ludovic Courtès2020-04-02
| | | | | * guix/scripts/system.scm (perform-action): Use 'mapm/accumulate-builds' instead of 'mapm'.
* '--dry-run' no longer implies '--no-grafts'.Ludovic Courtès2020-03-29
| | | | | | | | | | * guix/scripts/archive.scm (%options): "dry-run" option no longer adds 'graft? #f to RESULT. * guix/scripts/environment.scm (%options): Likewise. * guix/scripts/pack.scm (%options): Likewise. * guix/scripts/package.scm (%options): Likewise. * guix/scripts/pull.scm (%options): Likewise. * guix/scripts/system.scm (%options): Likewise.
* guix system: Fix mistaken 'guix pull' warning upon 'reconfigure'.Ludovic Courtès2020-03-24
| | | | | | | | | | Fixes <https://bugs.gnu.org/38196>. Reported by Florian Pelz <pelzflorian@pelzflorian.de>. * guix/scripts/system.scm (maybe-suggest-running-guix-pull): Check whether 'current-profile' returns true instead of checking for the existence of ~root/.config/guix/current. That way, "sudo guix system reconfigure" no longer emits a warning in that case.
* guix system: Use 'with-build-handler'.Ludovic Courtès2020-03-22
| | | | | | | * guix/scripts/system.scm (reinstall-bootloader): Remove call to 'show-what-to-build*'. (perform-action): Call 'build-derivations' instead of 'maybe-build'. (process-action): Wrap 'run-with-store' in 'with-build-handler'.
* file-systems: Add a 'file-system-device->string' procedure.Maxim Cournoyer2020-03-02
| | | | | | | * gnu/system/file-systems.scm (file-system-device->string): New procedure. * gnu/system.scm (bootable-kernel-arguments): Use it. * gnu/system/vm.scm (operating-system-uuid): Likewise. * guix/scripts/system.scm (display-system-generation): Likewise.
* scripts: system: Do not validate network file systems.Maxim Cournoyer2020-02-18
| | | | | | | Fixes <https://bugs.gnu.org/39551>. * guix/scripts/system.scm (check-file-system-availability): Ignore file systems of the NFS type.
* guix system: Honor the build options in 'delete-generations'.Ludovic Courtès2019-12-21
| | | | | | | | | Until now, 'guix system delete-generations' would ignore OPTS; for example, it would not enable #:print-extended-build-trace? & co., leading to suboptimal output. * guix/scripts/system.scm (process-command)[with-store*]: New macro. Use it for 'delete-generations', 'switch-generation', and 'roll-back'.
* guix system: Add "describe" action.Ludovic Courtès2019-12-07
| | | | | | | * guix/scripts/system.scm (show-help): Add "describe". (process-command): Handle it. (guix-system): Likewise. * doc/guix.texi (Invoking guix system): Document it.
* guix system: "list-generations" displays provenance info.Ludovic Courtès2019-12-07
| | | | | | | | * guix/scripts/pull.scm (channel-commit-hyperlink): Export. * guix/scripts/system.scm (display-system-generation) [display-channel]: New procedure. Read the "provenance" file of GENERATION and display channel info and the configuration file name when available.
* guix system: Use 'provenance-service-type', add "--save-provenance".Ludovic Courtès2019-12-07
| | | | | | | | | * guix/scripts/system.scm (show-help, %options): Add "--save-provenance". (process-action): Define 'save-provenance?' and 'transform'; call 'transform' on the OS. * doc/guix.texi (Invoking guix system): Document it under 'reconfigure'. (Service Reference): Mention that 'provenance-service-type' is automatically added by 'reconfigure' & 'init'.
* scripts: system: Add --target option.Mathieu Othacehe2019-12-01
| | | | | | | * guix/scripts/system.scm (%options): Add target option, (%default-options): ditto, (process-action): Rename existing target variable to target-file and pass new target variable to run-with-store procedure.
* Use 'offload?' instead of 'build-hook?' internally.Ludovic Courtès2019-11-26
| | | | | | | | | | | | | | | | | | | | * guix/scripts/archive.scm (%default-options): Replace 'build-hook?' with 'offload?'. * guix/scripts/build.scm (set-build-options-from-command-line): Pass #:offload? instead of #:use-build-hook?. (%standard-build-options): Use the 'offload? key instead of 'build-hook?. (%default-options): Replace 'build-hook?' with 'offload?'. * guix/scripts/copy.scm (%default-options): Likewise. * guix/scripts/deploy.scm (%default-options): Likewise. * guix/scripts/environment.scm (%default-options): Likewise. * guix/scripts/pack.scm (%default-options): Likewise. * guix/scripts/package.scm (%default-options): Likewise. * guix/scripts/pull.scm (%default-options): Likewise. * guix/scripts/system.scm (%default-options): Likewise. * guix/scripts/time-machine.scm (%default-options): Likewise. * guix/store.scm (set-build-options): Have #:use-build-hook? default to *unspecified*. Add #:offload?. Add call to 'warn-about-deprecation' when #:use-build-hook? is specified.
* guix system: Reinstalling the bootloader preserves extra menu entries.Ludovic Courtès2019-08-30
| | | | | | | | | | | | | Fixes <https://bugs.gnu.org/36876>. Reported by Jesse Gibbons <jgibbons2357@gmail.com>. Previously 'guix system delete-generations' or 'switch-generation' would lose the extra bootloader menu entries specified in the current system's configuration. This fixes that. * guix/scripts/system.scm (reinstall-bootloader): Turn PARAMS into a single <boot-parameters>. Adjust ENTRIES to include extra menu entries specified in PARAMS.
* guix system: Reimplement 'reconfigure'.Jakob L. Kreuze2019-07-26
| | | | | | | | | | * guix/scripts/system.scm (switch-to-system) (upgrade-shepherd-services, install-bootloader): Delete variable. (local-eval): New variable. (install): Remove 'bootloader-installer' and 'bootcfg-file' parameters. (install): Add 'bootloader' parameter. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
* guix gc: Correctly handle '--delete-generations' with no arguments.Ludovic Courtès2019-07-11
| | | | | | | | | | | | | | | | | | | | | | | | | | Previously, 'guix gc --delete-generations' would crash: the "" pattern would be passed to 'matching-generations', which would return #f instead of returning a list. Reported by Raghav Gururajan <rvgn@disroot.org> in <https://bugs.gnu.org/36466>. * guix/ui.scm (matching-generations): Raise an error when passed an invalid pattern. * guix/scripts/gc.scm (delete-old-generations): Check if PATTERN is true. (%options): Leave ARG as-is for 'delete-generations'. (guix-gc): Use 'assq' instead of 'assoc-ref' for 'delete-generations'. * guix/scripts/package.scm (delete-matching-generations): Replace (string-null? pattern) with (not pattern). Remove 'else' clause. (%options): Leave ARG as-is for 'delete-generations'. * guix/scripts/pull.scm (%options): Leave ARG as-is for 'list-generations'. (process-query): Replace (string-null? pattern) with (not pattern). * guix/scripts/system.scm (list-generations): Likewise, and remove 'else' clause. (process-command): Use #f instead of "" when no pattern is given.
* guix system: Type-check the file or expression.Ludovic Courtès2019-05-16
| | | | | | | | | Previously, users would get a wrong-type-arg exception down the road with an intimidating backtrace. * guix/scripts/system.scm (process-action)[ensure-operating-system]: New procedure. Use it.
* vm: Auto-detect if inputs should be registered.Maxim Cournoyer2019-05-13
| | | | | | | | | | | | | | | | | | | | | The default value of the argument REGISTER-CLOSURE? of the ISO9660-IMAGE, QEMU-IMAGE and SYSTEM-DOCKER-IMAGE procedures can be computed automatically, since the operating-system definition is available in its context. When the operating-system definition does not contain the GUIX-SERVICE-TYPE, do not register the closure in the database of Guix, as it takes time and doesn't serve a purpose. * gnu/system/vm.scm (has-guix-service-type): Add predicate. (iso9660-image)[register-closures?]: Use it to compute the argument's default value. (qemu-image)[register-closures?]: Likewise, and update docstring. (system-docker-image)[register-closures?]: Likewise. (system-disk-image): Do not explicit a value for the REGISTER-CLOSURES? argument of the ISO9660-IMAGE and QEMU-IMAGE procedure calls, so that its default value is used instead. * guix/scripts/system.scm (system-derivation-for-action): Do not explicit a value for the REGISTER-CLOSURES? argument of the SYSTEM-DOCKER-IMAGE procedure call, so that its default value is used instead.
* linux-container: Support container network sharing.Arun Isaac2019-05-14
| | | | | | | | | | | | | | | | | | | * gnu/system/linux-container.scm (container-essential-services): If network is to be shared with the host, remove network configuration files from etc service. (containerized-operating-system): If network is to be shared with the host, remove nscd service and map host's /var/run/nscd if it exists. (container-script): If network is to be shared with the host, do not create network namespace. * guix/scripts/system.scm (system-derivation-for-action): Add #:container-shared-network? argument. (perform-action): Add #:container-shared-network? argument. (show-help): Add "-N, --network" help information. (%options): Add network option. (process-action): Call perform-action with #container-shared-network? argument. * doc/guix.texi (Invoking guix system): Document the "-N, --network" option. Co-authored-by: Christopher Baines <mail@cbaines.net>
* guix system: Compute 'bootcfg' only for 'init' and 'reconfigure'.Ludovic Courtès2019-04-23
| | | | | | | | | | | | Previously, 'guix system vm' would start by computing the bootcfg derivation, which itself depended on an incorrect OS derivation (for the original OS instead of the one passed through 'virtualized-operating-system'.) That added overhead and would force the user's config file to define a root file system, for example, even though it makes no sense in the case of a VM. * guix/scripts/system.scm (perform-action)[bootcfg]: Limit to the 'init' and 'reconfigure' actions.
* scripts: More commands default to verbosity level 1.Ludovic Courtès2019-04-04
| | | | | | | * guix/scripts/environment.scm (%default-options): Change 'verbosity' to 1. * guix/scripts/pack.scm (%default-options): Likewise. * guix/scripts/system.scm (guix-system): Likewise, except for the 'build' command.
* guix system: Fix success report of the bootloader installation.Ludovic Courtès2019-03-17
| | | | | | | | | Fixes <https://bugs.gnu.org/34890>. Reported by Jack Hill <jackhill@jackhill.us>. Regression introduced in 21fcfe1ee969cc477dc41486ae4074e655d44274. * guix/scripts/system.scm (bootloader-installer-script): Ungexp DEVICE.
* bootloader: Use 'invoke/quiet' when running 'grub-install' and co.Ludovic Courtès2019-03-16
| | | | | | | | | | | This hides potentially confusing GRUB messages from the user, such as "Installing for i386-pc platform." * gnu/bootloader/extlinux.scm (install-extlinux): Use 'invoke/quiet' instead of 'system*' and 'error'. * gnu/bootloader/grub.scm (install-grub, install-grub-efi): Likewise. * guix/scripts/system.scm (bootloader-installer-script): Guard against 'message-condition?' and handle them properly.
* guix system: List old generations from newest to oldest.Ludovic Courtès2019-02-13
| | | | | | | | | Previously 'guix system switch-generation' or 'delete-generations' would yield a GRUB menu where entries for old generations were in the wrong order (i.e., oldest first.) * guix/scripts/system.scm (reinstall-bootloader): Reverse the list returned by 'generation-numbers'.
* guix system: Add 'delete-generations'.Ludovic Courtès2019-02-13
| | | | | | | | * guix/scripts/package.scm (delete-matching-generations): Export. * guix/scripts/system.scm (show-help): Add 'delete-generations'. (process-command): Honor it. (guix-system): Support it. * doc/guix.texi (Invoking guix system): Document it.
* Avoid name clash with 'build' from (guix store) and (guix status).Ludovic Courtès2019-02-11
| | | | | | | | | | | | | | | | Since commit 976ef2d97887d16eab8d4eb9dad811786b04d690, (guix status) exports 'build', which clashes with 'build' from (guix store). * build-aux/run-system-tests.scm: Select 'with-status-verbosity' from (guix status). * guix/scripts/archive.scm: Likewise. * guix/scripts/build.scm: Likewise. * guix/scripts/copy.scm: Likewise. * guix/scripts/environment.scm: Likewise. * guix/scripts/pack.scm: Likewise. * guix/scripts/package.scm: Likewise. * guix/scripts/pull.scm: Likewise. * guix/scripts/system.scm: Likewise.
* guix build: Re-purpose '--verbosity' and add '--debug'.Ludovic Courtès2019-01-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The previous '--verbosity' option was misleading and rarely what users were looking for. The new option provides a consistent way to choose whether or not to display the build log. * guix/scripts/build.scm (show-build-options-help): Remove "--verbosity" and add "--debug". (set-build-options-from-command-line): Use the 'debug key of OPTS for #:verbosity. (%standard-build-options): Change "verbosity" to "debug". Use 'string->number*' instead of 'string->number'. (%default-options): Change 'verbosity to 'debug and add a 'verbosity key. (show-help): Add '--verbosity'. (%options): Likewise, and change '--quiet' to set the 'verbosity key of RESULT. (guix-build): Use 'with-status-verbosity' instead of parameterizing CURRENT-BUILD-OUTPUT-PORT, honor the 'verbosity key of OPTS, and remove 'quiet?'. * guix/scripts/environment.scm (show-help, %options): Add '--verbosity'. (%default-options): Add 'debug'. (guix-environment): Honor the 'verbosity key of OPTS. * guix/scripts/pack.scm (%default-options): Add 'debug. (%options, show-help): Add '--verbosity'. (guix-pack): Honor the 'verbosity key of OPTS. * guix/scripts/package.scm (%default-options): Add 'debug. (show-help, %options): Add '--verbosity'. Mark '--verbose' as deprecated and change it to set 'verbosity. (guix-package): Honor the 'verbosity key of OPTS and remove 'verbose?'. * guix/scripts/pull.scm (%default-options): Add 'debug. (show-help, %options): Add '--verbosity'. (guix-pull): Honor the 'verbosity key of OPTS. * guix/scripts/system.scm (show-help, %options): Add '--verbosity'. (%default-options): Add 'debug. (guix-system): Honor the 'verbosity key of OPTS. * guix/scripts/archive.scm (%default-options): Add 'debug, 'print-build-trace?, 'print-extended-build-trace?, and 'multiplexed-build-output?. (show-help, %options): Add '--verbosity'. (export-from-store): Remove call to 'set-build-options-from-command-line'. (guix-archive): Wrap body in 'with-status-verbosity'. Add call to 'set-build-options-from-command-line. * doc/guix.texi (Common Build Options): Document '--verbosity' and '--debug'. (Additional Build Options): Adjust description of '--quiet'.
* status: Add 'with-status-verbosity'.Ludovic Courtès2019-01-11
| | | | | | | | | | | | | * guix/status.scm (logger-for-level, call-with-status-verbosity): New procedures. (with-status-verbosity): New macro. * guix/scripts/environment.scm (guix-environment): Use 'with-status-verbosity' instead of 'with-status-report'. * guix/scripts/pack.scm (guix-pack): Likewise. * guix/scripts/package.scm (guix-package): Likewise. * guix/scripts/pull.scm (guix-pull): Likewise. * guix/scripts/system.scm (guix-system): Likewise. * build-aux/run-system-tests.scm (run-system-tests): Likewise.
* guix system: Clarify the three strategies available.swedebugia2018-12-18
| | | | | | | | * guix/scripts/system.scm (show-help): Clarify the three choices. * doc/guix.texi (Invoking guix system): Add 3 @cindex to make on-error=strategy easier to find. Signed-off-by: Ludovic Courtès <ludo@gnu.org>
* guix system: Fix bootloader config file generation by 'guix system roll-back'.Ludovic Courtès2018-12-07
| | | | | | | | | | | Fixes <https://bugs.gnu.org/33623>. Reported by Diego Nicola Barbato <dnbarbato@posteo.de>. Regression introduced in commit 46c296dcc4817f15a4b4ef7e5ef622306b4db62e. * guix/scripts/system.scm (reinstall-bootloader): Add call to 'lower-object'.
* guix system: Fix 'init' again.Ludovic Courtès2018-11-21
| | | | | | | | | Fixes a regression introduced in 52ee4479ef26826a53b9929cd00ca7738be687b1, whereby 'install' would now be passed a procedure instead of a lowerable object. * guix/scripts/system.scm (perform-action): Pass BOOTLOADER-SCRIPT as the #:bootloader-installer argument of 'install'.
* guix system: Fix 'init'.Ludovic Courtès2018-11-19
| | | | | | | | Fixes a regression introduced in 52ee4479ef26826a53b9929cd00ca7738be687b1, whereby 'install' would now be passed a <computed-file> object instead of a derivation. * guix/scripts/system.scm (install): Call 'lower-object' on BOOTCFG.
* guix system: Clarify 'perform-action'.Ludovic Courtès2018-11-18
| | | | | * guix/scripts/system.scm (perform-action): Move non-monadic local variables outside the 'mlet' form.
* guix system: De-monadify bootloader installation script.Ludovic Courtès2018-11-18
| | | | | | | | | * guix/scripts/system.scm (bootloader-installer-derivation): Rename to... (bootloader-installer-script): ... this. Use 'scheme-file' instead of 'gexp->file'. (perform-action): Adjust accordingly. Move 'lower-object' call to the point where DRVS is computed.
* guix system: Simplify bootloader package handling.Ludovic Courtès2018-11-18
| | | | | | | * guix/scripts/system.scm (perform-action): Remove 'bootloader-package' variable. Pass (bootloader-package bootloader) as the 2nd argument to 'bootloader-installer-derivation'. Remove BOOTLOADER-PACKAGE from DRVS since it's redundant.
* system: De-monadify 'operating-system-bootcfg'.Ludovic Courtès2018-11-18
| | | | | | | | | * gnu/system.scm (operating-system-bootcfg): Remove 'mlet*' and 'lower-object' call. * gnu/system/vm.scm (system-disk-image) (system-qemu-image/shared-store): Adjust accordingly. * guix/scripts/system.scm (perform-action): Add 'lower-object' call for BOOTCFG.
* guix system: Invoking 'guix system init' twice keeps timestamps zeroed.Ludovic Courtès2018-11-11
| | | | | | | | | | | | | | 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 bb3b6ccb05550fbfbeb459c68819a752327d6e1e. 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.