* guix/store.scm (&nix-error): Rename to...
(&store-error): ... this, and adjust users.
(&nix-connection-error): Rename to...
(&store-connection-error): ... this, and adjust users.
(&nix-protocol-error): Rename to...
(&store-protocol-error): ... this, adjust users.
(&nix-error, &nix-connection-error, &nix-protocol-error): Define these
condition types and their getters as deprecrated aliases.
* build-aux/run-system-tests.scm, guix/derivations.scm,
guix/grafts.scm, guix/scripts/challenge.scm,
guix/scripts/graph.scm, guix/scripts/lint.scm,
guix/scripts/offload.scm, guix/serialization.scm,
guix/ssh.scm, guix/tests.scm, guix/ui.scm,
tests/derivations.scm, tests/gexp.scm, tests/guix-daemon.sh,
tests/packages.scm, tests/store.scm, doc/guix.texi: Adjust to use the
new names.

* gnu/services/ssh.scm (<openssh-configuration>)[extra-content]: New field.
* doc/guix.texi (Networking Services): Document it.

* doc/guix.texi (Preparing for Installation): Mention the graphical installer.

* doc/guix.texi (Proceeding with the Installation): Mention that
  /etc/config.scm must be passed as parameter and that root is needed.

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

* gnu/services/avahi.scm (<avahi-configuration>): Export getters.  Add
default values.
(avahi-service-type)[default-value]: New field.
(avahi-service): Mark as deprecated.
* gnu/services/desktop.scm (%desktop-services): Use the 'service' form
instead of calling 'avahi-service'.
* gnu/tests/base.scm (%avahi-os): Likewise.
* doc/guix.texi (Base Services): Adjust example accordingly.
(Networking Services): Update accordingly.

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'.

These procedures were already either undocumented (and de facto
deprecated) or documented as deprecated or redundant.

* gnu/services/base.scm (guix-service, guix-publish-service): Mark as
deprecated.
* gnu/services/mcron.scm (mcron-service): Likewise.
* gnu/services/networking.scm (tor-service): Likewise.
* doc/guix.texi (Scheduled Job Execution): Remove 'mcron-service' and
adjust example.
(Networking Services): Remove 'tor-service'.
* gnu/tests/base.scm (%mcron-os): Use 'mcron-service-type' instead of
'mcron-service'.
* gnu/tests/networking.scm (%tor-os): Use 'tor-service-type' instead of
'tor-service'.
* tests/guix-system.sh: Likewise.

* gnu/services/docker.scm: New file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
* doc/guix.texi (Miscellaneous Services): Document the service.

* configure.ac: Require Guile 2.2.
* README: Adjust accordingly.
* doc/guix.texi (Requirements): Likewise.
* gnu/packages/package-management.scm (guile2.0-guix): Deprecate.
(guix-minimal): Inherit from GUIX, not from GUILE2.0-GUIX.

* doc/guix.texi (Installation): Make it clear that the installer script is the
recommended, easy way to install Guix.

* guix/scripts/lint.scm (check-source-unstable-tarball): New procedure.
(%checkers): Add it.
* tests/lint.scm ("source-unstable-tarball", "source-unstable-tarball:
source #f", "source-unstable-tarball: valid", "source-unstable-tarball:
package named archive", "source-unstable-tarball: not-github",
"source-unstable-tarball: git-fetch"): New tests.
* doc/guix.texi (Invoking guix lint): Document it.

* guix/scripts/pull.scm (%options): Add '--system'.
(guix-pull): Honor it.
* doc/guix.texi (Invoking guix pull): Document it.

Using inferiors and thus 'guix repl' simplifies setup on build
machines (no need to worry about GUILE_LOAD_PATH etc.)

Furthermore, the 'guix repl -t machine' protocol running in a remote
pipe addresses several issues with the current implementation of nodes
and RREPLs in Guile-SSH: fewer round trips, doesn't leave a 'guile
--listen' process behind it, stateless (since a new process is started
each time), more efficient (the SSH channel can be reused), more
reliable (no 'pgrep', 'pkill', and shellology; see
<https://github.com/artyom-poptsov/guile-ssh/issues/11> as an example.)

* guix/ssh.scm (inferior-remote-eval): New procedure.
(send-files): Use it instead of 'make-node' and 'node-eval'.
* guix/scripts/offload.scm (node-guile-version): New procedure.
(node-free-disk-space, transfer-and-offload, node-load)
(choose-build-machine, assert-node-has-guix): Use 'remote-inferior'
instead of 'make-node' and 'inferior-eval' instead of 'node-eval'.
(assert-node-can-import, assert-node-can-export): Likewise, and add
'session' parameter.
(check-machine-availability): Likewise, and add calls to
'close-inferior' and 'disconnect!'.
(check-machine-status): Likewise.
* doc/guix.texi (Daemon Offload Setup): Remove bit related to 'guile' in
$PATH and $GUILE_LOAD_PATH; mention 'guix' alone.

This is a follow-up to c3949182

* doc/guix.texi (Invoking guix refresh): Fix texinfo markup

* guix/scripts/refresh.scm (refresh-recursive, list-transitive): New
procedures.
(show-help): Document it.
(guix-refresh): Add flags and checks for new options.
* doc/guix.texi (Invoking guix refresh): Document new options.

* gnu/services/messaging.scm (<quassel-configuration>): New record type.
(%quassel-account, %quassel-activation): New procedures.
(quassel-service-type): New variable.
* gnu/tests/messaging.scm (%test-quassel): New variable.
(run-quassel-test): New procedure.
* doc/guix.texi (Messaging): Document quassel service.

* guix/scripts/lint.scm (check-github-uri): New procedure.
(%checkers): Add it.
* doc/guix.texi (Invoking guix lint): Document it.
* tests/lint.scm ("github-url", "github-url: one suggestion"): New tests.

* doc/guix.texi (Web Services): Fix typos.

Suggested by Chris Marusich <cmmarusich@gmail.com>.

* doc/guix.texi (Invoking guix package): Mention that --search is
case-insensitive.

* guix/build/dune-build-system.scm,
  guix/build-system/dune.scm: New files.
* Makefile.am (MODULES): Add them.
* doc/guix.texi (Build Systems): Document dune-build-system.
* guix/build-system/ocaml.scm (lower, default-findlib, default-ocaml): Export
them.
(package-with-explicit-ocaml): Also transform packages built with
dune-build-system.

Reported by Thomas Schmitt <scdbackup@gmx.net>.

* doc/guix.texi (Binary Installation): Refer to SUBSTITUTE-SERVER, not
to 'hydra.gnu.org'.

* 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>

* doc/guix.texi (Channels): Remove extra quote in '.guix-channel'
example.

* doc/guix.texi (Web Services): Update accordingly.

Fixes <https://bugs.gnu.org/33776>.
Reported by Adrien Guilbaud <adrien.guilbaud@inria.fr>.

* guix/scripts/environment.scm (show-help): Add call to
'show-transformation-options-help'.
(%options): Add %TRANSFORMATION-OPTIONS.
(options/resolve-packages): Add 'store' parameter.
[transform, package->manifest-entry*]: New procedures.
Use 'package->manifest-entry*' instead of 'package->manifest-entry'.
(guix-environment): Move definition of 'manifest' within 'with-store'.
* tests/guix-environment.sh: Add test.

* gnu/services/base.scm (udev-shepherd-service): Add 'actions' field.
* doc/guix.texi (Base Services): Move "@end deffn" after 'udev-service'
definition.  Mention 'herd rules udev'.

* gnu/services/monitoring.scm (nginx-server-configuration-list?,
serialize-nginx-server-configuration-list, zabbix-front-end-configuration,
zabbix-front-end-config, zabbix-front-end-activation,
generate-zabbix-front-end-documentation): New procedures.
(%zabbix-front-end-configuration-nginx, %maintenance.inc.php,
zabbix-front-end-service-type): New variables.
* doc/guix.texi (Monitoring Services): Document this.

* gnu/services/web.scm: (<php-fpm-configuration>)[timezone]: New record field.
(default-php-fpm-config, php-fpm-shepherd-service, php-fpm-activation): Use
this.
* doc/guix.texi (Web Services): Document this.

* gnu/services/monitoring.scm (zabbix-server-service-type,
zabbix-agent-account, zabbix-agent-activation, zabbix-agent-config-file,
zabbix-agent-shepherd-service, generate-zabbix-agent-documentation): New
procedures.
(zabbix-agent-service-type): New 'service-type'.
* gnu/tests/monitoring.scm (run-zabbix-server-test): Test 'zabbix-agent'.
(%zabbix-os): Add 'zabbix-agent' service.
* doc/guix.texi (Monitoring Services): Document 'zabbix-agent'.

* gnu/services/monitoring.scm (uglify-field-name, serialize-field,
serialize-number, serialize-list, serialize-string, group?, serialize-group,
include-files?, serialize-include-files, zabbix-server-account,
zabbix-server-config-file, zabbix-server-activation,
zabbix-server-shepherd-service, generate-zabbix-server-documentation,
extra-options, serialize-extra-options): New procedures.
(zabbix-server-service-type): New variable.
* gnu/tests/monitoring.scm (%psql-user-create-zabbix,
%psql-db-zabbix-create-script, %psql-db-create-zabbix, %psql-db-import-zabbix,
%zabbix-os, %test-zabbix): New variables.
(run-zabbix-server-test): New procedure.
* doc/guix.texi (Monitoring Services): Document 'zabbix-server'.

squash! services: monitoring: Add 'zabbix-server'.

* doc/contributing.texi (Submitting Patches): Replace @command by @code for
  packages.

* doc/contributing.texi (Submitting Patches): Merge "discourage use of
  texlive" with existing paragraph on "guix size".

* doc/contributing.texi (Submitting Patches): Discourage the use of texlive as
  input.

* guix/channels.scm (<channel-metadata>): New record.
(read-channel-metadata, channel-instance-dependencies): New procedures.
(latest-channel-instances): Include channel dependencies; add optional
argument PREVIOUS-CHANNELS.
(channel-instance-derivations): Build derivation for additional channels and
add it as dependency to the channel instance derivation.
* doc/guix.texi (Channels): Add subsection "Declaring Channel Dependencies".
* tests/channels.scm: New file.
* Makefile.am (SCM_TESTS): Add it.

The use of 'effect' here is actually correct!

This reverts commit 214e55fa.

 * doc/guix.texi (Invoking guix system): Fix typo.

Signed-off-by: Leo Famulari <leo@famulari.name>

* doc/guix.texi (Limitations): Update package count.

Fixes an accidental revert in commit
0a5fa004.

* doc/guix.texi (SUBSTITUTE-SERVER): Really change to ci.guix.info.

* config-daemon.ac (guix_substitute_urls): Always default to
"https://ci.guix.info".
* doc/guix.texi (SUBSTITUTE-SERVER): Switch to ci.guix.info.
* guix/scripts/build.scm (%default-log-urls): Likewise.
* guix/scripts/substitute.scm (%default-substitute-urls): Likewise.
* guix/store.scm (%default-substitute-urls): Likewise.

* Makefile.am (assert-binaries-available): Don't mention hydra.gnu.org
in comment.
* build-aux/check-available-binaries.scm: Likewise.
* build-aux/check-final-inputs-self-contained.scm: Likewise.
* doc/guix.texi (SUBSTITUTE-SERVER): New variable.
Use it throughout instead of "mirror.hydra.gnu.org".
* doc/contributing.texi (Submitting Patches): Likewise.
* gnu/services/base.scm (hydra-key-authorization)
(guix-activation): Remove mentions of "hydra.gnu.org" in comments and
messages.
* gnu/system/install.scm (%installation-services): Likewise.
* guix/scripts/size.scm (guix-size): Likewise.