* doc/guix.texi (Printing Services): Add cups-filters to the documented
list of default cups-configuration extensions.

* gnu/services/cups.scm (cups-configuration): Add brlaser to the default
extensions.
* doc/guix.texi (Printing Services): Document it.

* doc/guix.texi (operating-system Reference): Link to the
"Keyboard Layout" node.

Signed-off-by: Mathieu Othacehe <othacehe@gnu.org>

* guix/scripts/system.scm (lookup-backend): New procedure.
(export-extension-graph, export-shepherd-graph): Add #:backend parameter
and honor it.
(show-help, %options): Add "--graph-backend".
(%default-options): Add 'graph-backend'.
(process-action): Pass #:backend to 'export-extension-graph' and
'export-shepherd-graph'.
* doc/guix.texi (Invoking guix system): Document '--graph-backend'.

* gnu/services/mail.scm (radicale-configuration)
(radicale-configuration?): New procedures.
(%default-radicale-config-file)
(radicale-service-type): New variables.
* doc/guix.texi: Document it.

Suggested by Philippe Swartvagher <philippe.swartvagher@inria.fr>.

* guix/transformations.scm (transform-package-patches): New procedure.
(%transformations): Add it as 'with-patch'.
(%transformation-options, show-transformation-options-help/detailed):
Add '--with-patch'.
* tests/transformations.scm ("options->transformation, with-patch"): New
test.
* doc/guix.texi (Package Transformation Options): Document it.

This simplifies setup of build machines: no need to install Guile in
addition to Guix, no need to set 'GUILE_LOAD_PATH' & co., leading to
fewer failure modes.

* guix/ssh.scm (remote-run): New procedure.
(remote-daemon-channel): Use it instead of 'open-remote-pipe*'.
(store-import-channel)[import]: Remove check for module availability.
Add call to 'primitive-exit'.
Use 'remote-run' instead of 'open-remote-pipe'.
(store-export-channel)[export]: Remove check for module availability.
Add calls to 'primitive-exit'.
Use 'remote-run' instead of 'open-remote-pipe'.
(handle-import/export-channel-error): Remove 'module-error' clause.
(report-module-error): Remove.
* guix/scripts/offload.scm (assert-node-has-guix): Replace call to
'report-module-error' by 'leave'.
* doc/guix.texi (Daemon Offload Setup): Remove mention of Guile.

* guix/import/cran.scm (%input-style): New parameter.
(format-inputs): Use it.
* guix/scripts/import/cran.scm (guix-import-cran): Set the %input-style
parameter.
 (%options): Add "--style" option.
* doc/guix.texi (Invoking guix import): Document it.

* doc/contributing.texi (Emacs Packages): New subsection.

* doc/guix.texi (Base Services): Document the 'advertise?' field of
'guix-publish-configuration'.

* guix/import/opam.scm (get-opam-repository): Add support for coq
repositories.
(ocaml-name->guix-name): Properly name coq package.
* doc/guix.texi (Invoking guix import): Document it.

* gnu/services/cuirass.scm (<cuirass-configuration>): Add "queue-size" field.
(cuirass-shepherd-service): Honor it.
* doc/guix.texi (Continuous Integration): Document it.

* doc/guix.texi (Desktop Services): Document that xfce4-panel plugin packages
should be added to the 'packages' field of OS.

* doc/guix.texi (Getting Started): Fix invalid GUIX_PROFILE value.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

* gnu/services/base.scm (shepherd-discover-action): New procedure,
(guix-shepherd-service)[<actions>]: add it,
[<start>]: honor it.
* doc/guix.texi (Invoking guix-daemon): Document it.

There are plenty of options supported that the Guix configuration record
doesn't help you with, so add this field to allow users to do their own thing.

* gnu/services/monitoring.scm (<prometheus-node-exporter-configuration>): Add
extra-options field.
(prometheus-node-exporter-shepherd-service): Handle the extra options.
* doc/guix.texi (Prometheus Node Exporter Service): Document this.

* gnu/services/monitoring.scm (<prometheus-node-exporter-configuration>): Add
textfile-directory.
(prometheus-node-exporter-textfile-directory,
prometheus-node-exporter-activation): New procedures.
(prometheus-node-exporter-shepherd-service): Pass
--collector.textfile.directoryto the service.
(prometheus-node-exporter-service-type): Extend the activation service type.
* doc/guix.texi (Prometheus Node Exporter Service): Document.

* doc/guix.texi (Prometheus Node Exporter Service): Simplify the example.

* doc/guix.texi (Keyboard Layout and Networking and Partitioning): Add
F2FS to the footnote of Guix System's supported root file systems.

Signed-off-by: Tobias Geerinckx-Rice <me@tobias.gr>

* doc/guix.texi (Bootstrapping): Remove distinction between "regular
users" and "hackers".  Explain the importance of the question.

This is a followup to 269c1db4.

* doc/guix.texi (Requirements): Mention Guile-Semver.

* doc/guix.texi (Unattended Upgrades): Give references and examples
for services-to-restart.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

* doc/guix.texi (Base Services): Correct spelling of 'discover?'.

Signed-off-by: Mathieu Othacehe <othacehe@gnu.org>

* doc/guix.texi (Build Systems): Fix spelling of "CHICKEN".  Add xref to
its web site.  Tweak wording.

* guix/build-system/chicken.scm: New file.
* guix/build/chicken-build-system.scm: New file.
* Makefile.am: Add them.
* doc/guix.texi: Document it.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

It is a common mistake to modify an <origin> record that computes to a
fixed-output derivation, forgetting to update its hash field, only to find out
that a previously built source gets used instead.  While there doesn't seem to
be an obvious solution to this problem, we can at least document the fact that
sources can be checked the same as other builds.

* doc/guix.texi (Additional Build Options): Document that source derivation
builds can be verified using --check.

* guix/scripts/processes.scm (lock->recutils): New procedure.
(daemon-session->recutils): Use it.
(daemon-sessions->recutils, session-key->recutils)
(session-scalars->normalized-record)
(child-process->normalized-record)
(daemon-sessions->normalized-record): New procedures.
(session-rec-type, lock-rec-type, child-process-rec-type)
(%available-formats): New variables.
(list-formats): New procedure.
(%options, show-help): Add '--format'.
(%default-options): New variable.
(guix-processes): Use 'parse-command-line' instead of 'args-fold*'.
Honor the 'format' value in OPTIONS.
* doc/guix.texi (Invoking guix processes): Document '--format'.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

* guix/scripts/processes.scm (daemon-session->recutils): Put child
process information in separate fields.
* doc/guix.texi (Invoking guix processes): Document change in output of
'guix processes'.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

This commit follows 8518a369.

* doc/guix.texi
(Monitoring Services)[zabbix-agent]: Set hostname to empty string.

* guix/scripts/discover.scm: New file.
* Makefile.am (MODULES): Add it.
* nix/nix-daemon/guix-daemon.cc (options): Add "discover" option,
(parse-opt): parse it,
(main): start "guix discover" process when the option is set.
* guix/scripts/substitute.scm (%local-substitute-urls): New variable,
(substitute-urls): add it.
* gnu/services/base.scm (<guix-configuration>): Add "discover?"
field,
(guix-shepherd-service): honor it.
* doc/guix.texi (Invoking guix-daemon): Document "discover" option,
(Base Services): ditto.

* guix/scripts/publish.scm (%options): Add "--advertise" option.
(show-help): Document it.
(service-name): New procedure,
(publish-service-type): new variable.
(run-publish-server): Add "advertise?" and "port" parameters. Use them to publish
the server using Avahi.
(guix-publish): Pass the "advertise?" option to "run-publish-server".
* gnu/services/base.scm (<guix-publish-configuration>): Add "advertise?"
field.
(guix-publish-shepherd-service): Honor it.

* guix/avahi.scm: New file.
* Makefile.am (MODULES): Add it.
* configure.ac: Add Guile-Avahi dependency.
* doc/guix.texi (Requirements): Document it.
* gnu/packages/package-management.scm (guix)[native-inputs]: Add
"guile-avahi",
[propagated-inputs]: ditto.
* guix/self.scm (specification->package): Add guile-avahi.
(compiled-guix): Ditto.

* doc/guix.texi (Database Services): Remove a duplicate ‘on’ from the
memcached section.

* doc/guix.texi (Database Services): Replace comma with full stop for
Memcached documentation.

* gnu/services/databases.scm (<mysql-configuration>): Add AUTO-UPGRADE? field.
(mysql-upgrade-wrapper, mysql-upgrade-shepherd-service,
mysql-shepherd-services): New variables.
(mysql-service-type): Use MYSQL-SHEPHERD-SERVICES instead of
MYSQL-SHEPHERD-SERVICE.
* doc/guix.texi (Database Services): Document the AUTO-UPGRADE? field of
MYSQL-SERVICE-TYPE.
* gnu/tests/databases.scm (run-mysql-test): Test that mysql_upgrade has run.

* gnu/services/databases.scm (<mysql-configuration>): Add SOCKET field.
(mysql-configuration-file): Adjust accordingly.
* doc/guix.texi (Database Services): Likewise.

* gnu/services/databases.scm (<mysql-configuration>): Add BIND-ADDRESS field.
(mysql-configuration-file): Adjust accordingly.
* doc/guix.texi (Database Services): Document it.

* gnu/services/databases.scm (mysql-service): Define in terms of DEFINE-DEPRECATED.
* gnu/tests/databases.scm (%mysql-os): Adjust accordingly.
* doc/guix.texi (Database Services): Adjust the MariaDB/MySQL section to
document MYSQL-SERVICE-TYPE instead of MYSQL-SERVICE.  While at it, document
the EXTRA-CONTENT field.

This is a followup to 0468455e, which
added mcron to %BASE-SERVICES.

* doc/guix.texi (Scheduled Job Execution): Use 'simple-service'.

This is a followup to 4c0c65ac.

* doc/guix.texi (Requirements): Remove lzlib.