This is a followup to 8e31736b0a.
* guix/scripts/system/reconfigure.scm (check-forward-update): Add
#:current-channels. Use it instead of OLD.
* gnu/services.scm (sexp->system-provenance): New procedure.
(system-provenance): Use it.
* gnu/machine/ssh.scm (<machine-ssh-configuration>)[allow-downgrades?]:
New field.
(machine-check-forward-update): New procedure.
(check-deployment-sanity)[assertions]: Call it.
* doc/guix.texi (Invoking guix deploy): Document 'allow-downgrades?'
field.
* 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.
* 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.
This decouples startup of the Hurd from the "hurd" package, moving the RC
script into SYSTEM.
* gnu/packages/hurd.scm (hurd)[inputs]: Remove hurd-rc-script.
[arguments]: Do not substitute it. Update "runsystem.sh" to parse kernel
arguments and exec into --system=SYSTEM/rc.
(hurd-rc-script): Move to...
* gnu/services.scm (%hurd-rc-file): ...this new variable.
(hurd-rc-entry): New procedure.
(%hurd-startup-service): Use it in new variable.
* gnu/system.scm (hurd-default-essential-services): Use it.
* gnu/system/hurd.scm (%hurd-def%hurd-default-operating-system-kernel,
%hurd-default-operating-system): New exported variables.
* gnu/system/examples/bare-hurd.tmpl: New file.
* Makefile.am (EXAMPLES): Add it.
* tests/guix-system.sh: Add --target=i586-pc-gnu when testing it.
Fixes <https://bugs.gnu.org/40729>.
Reported by Christopher Baines <mail@cbaines.net>.
* gnu/services.scm (files->etc-directory)[assert-no-duplicates]: New
procedure.
Use it.
That way, more build requests are accumulated when running "guix system
build".
* gnu/services.scm (system-derivation): Use 'mapm/accumulate-builds'
rather than 'sequence'.
Previously 'fold-services' could end up traversing the same services in
the graph several times, which is what this change addresses.
The hit rate on the 'add-data-to-store' cache goves from 9% to 8% on
"guix system build desktop.tmpl -nd", and the number of lookups in that
cache goes from 4458 to 4383.
* gnu/services.scm (fold-services): Turn 'loop' into a monadic procedure
in %STATE-MONAD and use it to memoize values of visited services.
* gnu/services.scm (activation-script): Return a <program-file> rather
than a <scheme-file>.
* gnu/deploy.scm (guix-deploy): Remove handling for '--system'.
(show-help): Remove documentation for '--system'.
(%default-options): Remove default setting for 'system'.
Fixes a bug whereby services indirectly depended on would not be
automatically instantiated.
* gnu/services.scm (instantiate-missing-services): Loop back when the
length of ADJUSTED is greater than that of INSTANCES.
* tests/services.scm ("instantiate-missing-services, indirect"): New test.
Fixes <https://bugs.gnu.org/26353>.
Reported by Danny Milosavljevic <dannym@scratchpost.org>.
* gnu/services.scm (cleanup-gexp): Add 'setenv' and 'setlocale' calls
before 'delete-file-recursively'.
* gnu/tests/base.scm (%cleanup-os, %test-cleanup): New variables.
(run-cleanup-test): New procedure.
* gnu/services.scm (compute-boot-script): Reverse MEXPS.
* gnu/system.scm (essential-services): Reverse order of
%SHEPHERD-ROOT-SERVICE, %ACTIVATION-SERVICE, and CLEANUP-SERVICE-TYPE.
This reduces the closure of (guix discovery) from 28 to 8 modules.
* guix/discovery.scm (scheme-files): Use 'format' instead of 'warning'.
(scheme-modules): Add #:warn parameter. Use it instead of
'warn-about-load-error'.
(fold-modules): Add #:warn and pass it to 'scheme-modules'.
(all-modules): Likewise.
* gnu/bootloader.scm (bootloader-modules): Pass #:warn to 'all-modules'.
* gnu/packages.scm (fold-packages): Likewise.
* gnu/services.scm (all-service-modules): Likewise.
* guix/upstream.scm (importer-modules): Likewise.
* gnu/services.scm (boot-service-type) <compose>: Use the "identity"
procedure instead of the "append" procedure because it more accurately
reflects the intent, which is to simply return the single list of
extensions to which fold-services applies the "compose" procedure.
(activation-service-type) <compose>: Likewise.
This simplifies OS configuration: users no longer need to be aware of
what a given service depends on.
See the discussion at
<https://lists.gnu.org/archive/html/guix-devel/2018-01/msg00114.html>.
* gnu/services.scm (missing-target-error): New procedure.
(service-back-edges): Use it.
(instantiate-missing-services): New procedure.
* gnu/system.scm (operating-system-services): Call
'instantiate-missing-services'.
* tests/services.scm ("instantiate-missing-services")
("instantiate-missing-services, no default value"): New tests.
* gnu/services/version-control.scm (cgit-service-type)[extensions]: Add
FCGIWRAP-SERVICE-TYPE.
* gnu/tests/version-control.scm (%cgit-os): Remove NGINX-SERVICE-TYPE
and FCGIWRAP-SERVICE-TYPE instances.
* doc/guix.texi (Log Rotation): Remove 'mcron-service-type' in example.
(Miscellaneous Services): Remove 'nginx-service-type' and
'fcgiwrap-service-type' in Cgit example.
* gnu/services.scm (&no-default-value): New variable.
(<service-type>)[default-value]: New field.
(<service>): Rename constructor from 'service' to 'make-service'.
(service): New macro.
(%service-with-default-value): New procedure.
(&missing-value-service-error): New error condition.
* tests/services.scm ("services, default value"): New test.
* doc/guix.texi (Service Types and Services): Document 'default-value'.
(Service Reference): Explain default values.
When launching a container created with guix system container, the
attempt to create /var/log/wtmp would fail, as /var/log did not exist.
* gnu/services.scm (activation-script): Create /var/log
Co-authored-by: Ludovic Courtès <ludo@gnu.org>
This fixes a bug whereby /var/log/wtmp would never be created, and thus
accounting information would be lost.
* gnu/services.scm (activation-script): Create /var/log/wtmp.
* gnu/tests/base.scm (run-basic-test)["wtmp entry"]: New test.
This fixes a bug whereby /var/run/utmpx would never be created, and thus
accounting information would be missing.
* gnu/services.scm (activation-script): Create /var/run/utmpx.
* gnu/tests/base.scm (run-basic-test)["utmpx entry"]: New test.
* gnu/services.scm: Export service-extension-target and
service-extension-compute. This allows for greater extensiblity of services
by enabling service extensions to be wrapped. For example, the parameters
passed to the compute function can be modified, or the return value of the
compute function can be modified.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
* gnu/services.scm (activation-script): Remove code to set '%load-path'
and use 'with-imported-modules' instead.
(cleanup-gexp): Likewise.
* gnu/system/vm.scm (%vm-module-closure): New variable.
(expression->derivation-in-linux-vm): Remove #:modules.
[loader]: Remove code to set '%load-path'.
[builder]: Use %VM-MODULE-CLOSURE.
(qemu-image): Use 'with-imported-modules'.
* doc/guix.texi ("Using the Configuration System"): Move the example...
("Service Reference"): ...to here, and clarify more.
* gnu/services.scm (modify-services): Update docstring to mention the
return type.
Co-authored-by: Ludovic Courtès <ludo@gnu.org>
