* guix/build/syscalls.scm (bits->symbols-body, define-bits)
(local-flags): New macros.
(TCSANOW, TCSADRAIN, TCSAFLUSH): New variables.
(<termios>): New record type.
(%termios): New C structure.
(tcgetattr, tcsetattr): New procedures.
* tests/syscalls.scm ("tcgetattr ENOTTY", "tcgetattr")
("tcsetattr"): New tests.
* guix/scripts/lint.scm (check-vulnerabilities): Check the replacement
of PACKAGE.
* tests/lint.scm ("cve: patched vulnerability in replacement"): New test.
Suggested by John Darrington.
* guix/scripts/lint.scm (check-description-style): Emit a warning when
DESCRIPTION is not a string.
(check-synopsis-style): Likewise.
(check-gnu-synopsis+description): Likewise.
* tests/lint.scm ("description: not a string", "synopsis: not a
string"): New tests.
* guix/build/syscalls.scm (terminal-columns): Call
'terminal-window-size' only when PORT is a file port.
* tests/syscalls.scm ("terminal-columns non-file port"): New test.
* guix/build/syscalls.scm (TIOCGWINSZ): New macro.
(<window-size>): New record type.
(winsize): New C struct.
(winsize-struct): New variable.
(terminal-window-size, terminal-columns): New procedures.
Before that '.log' files for scheme tests were fragmented and not
included in test-suite.log. This unifies the semantics of SRFI-64 API
with Automake test suite.
* build-aux/test-driver.scm: New file.
* Makefile.am (SCM_LOG_DRIVER, AM_SCM_LOG_DRIVER_FLAGS): New variables.
(SCM_LOG_COMPILER, AM_SCM_LOG_FLAGS): Delete variables.
(AM_TESTS_ENVIRONMENT): Set GUILE_AUTO_COMPILE to 0.
* test-env.in: Silence guix-daemon.
* doc/guix.texi (Running the Test Suite): Describe how to display the
detailed results. Bug reports require only 'test-suite.log' file.
* tests/base32.scm, tests/build-utils.scm, tests/builders.scm,
tests/challenge.scm, tests/cpan.scm, tests/cpio.scm, tests/cran.scm,
tests/cve.scm, tests/derivations.scm, tests/elpa.scm,
tests/file-systems.scm, tests/gem.scm, tests/gexp.scm,
tests/gnu-maintenance.scm, tests/grafts.scm, tests/graph.scm,
tests/gremlin.scm, tests/hackage.scm, tests/hash.scm,
tests/import-utils.scm, tests/lint.scm, tests/monads.scm, tests/nar.scm,
tests/packages.scm, tests/pk-crypto.scm, tests/pki.scm,
tests/profiles.scm, tests/publish.scm, tests/pypi.scm,
tests/records.scm, tests/scripts-build.scm, tests/scripts.scm,
tests/services.scm, tests/sets.scm, tests/size.scm, tests/snix.scm,
tests/store.scm, tests/substitute.scm, tests/syscalls.scm,
tests/system.scm, tests/ui.scm, tests/union.scm, tests/upstream.scm,
tests/utils.scm: Don't exit at the end of test groups.
* tests/containers.scm: Likewise. Use 'test-skip' instead of exiting
with error code 77.
Switching to execlp means that the process spawned in a container is PID
1, which obsoleted one of the 'guix environment --container' tests
because the init process can't be killed in the usual manner.
* guix/scripts/environment.scm (launch-environment/fork): New procedure.
(launch-environment): Switch from system* to execlp. Add handler for
SIGINT.
(guix-environment): Use launch-environment/fork.
* tests/guix-environment-container.sh: Replace abnormal exit test with
one that works now that the spawned process is PID 1.
Fixes <http://bugs.gnu.org/22612>.
Reported by Danny Milosavljevic <dannym@scratchpost.org>.
* tests/syscalls.scm ("network-interfaces returns one or more
interfaces"): Accept 'interface-address' value of #f.
* guix/scripts/build.scm: Use the right 'package-name->name+version'
procedure. Fixes a regression introduced in
1b846da8c3.
* tests/scripts-build.scm ("options->transformation, with-source, with
version"): New test.
Suggested by Jookia.
* guix/derivations.scm (&file-search-error): New error condition.
(search-path*): Raise it when 'search-path' returns #f.
* guix/gexp.scm (search-path*): Remove.
* guix/ui.scm (call-with-error-handling): Add case for
'file-search-error?'.
* tests/derivations.scm ("build-expression->derivation and invalid
module name"): New test.
Fixes <http://bugs.gnu.org/23062>.
Reported by Danny Milosavljevic <dannym@scratchpost.org>.
* guix/import/pypi.scm (make-pypi-sexp): Check whether 'pypi-uri'
returns SOURCE-URL and fall back to the full URL otherwise.
* tests/pypi.scm ("pypi->guix-package"): Adjust expected URI
accordingly.
Co-authored-by: Danny Milosavljevic <dannym@scratchpost.org>
Before that, 'guix build --substitute-urls=""' would lead to using the
daemon's own URL list instead of the empty list. The 'or*' hack, which
is to blame, had become unnecessary since commit
fb4bf72be3.
Reported by Mark H Weaver <mhw@netris.org>.
* guix/scripts/substitute.scm (or*): Remove.
(%cache-urls): Use 'or' instead of 'or*'.
* tests/store.scm ("substitute query, alternating URLs"): Add test with
empty URL list.
* doc/guix.texi (Common Build Options): Mention the empty string.
Previously, the resulting 'signature-urls' would contain N times the
same URL.
* guix/upstream.scm (coalesce-sources): Fix TWO in 'signature-urls'.
* tests/upstream.scm: New file.
* Makefile.am (SCM_TESTS): Add it.
Fixes a thinko introduced in 1b846da8c3
that would lead to a backtrace when looking for an unknown package.
* gnu/packages.scm (%find-package): Correct logic when checking for
FALLBACK?.
Fixes a typo introduced in 1b846da8c3 that
would lead to a backtrace when using the deprecated syntax.
* gnu/packages.scm (%find-package): Turn the first argument to
'call-with-values' into a thunk. Use #:select instead of '@' to select
the right 'package-name->name+version' procedure.
This allows tests to run as expected even in the presence of
replacements among the bootstrap packages, such as Perl (commit
d8173f21f7).
* tests/cpan.scm: Add (%graft? #f).
* tests/derivations.scm: Likewise.
* tests/graph.scm: Likewise.
* tests/monads.scm: Likewise.
* tests/profiles.scm: Likewise.
* tests/gexp.scm: Likewise.
("gexp->derivation vs. grafts"): Explicitly reenable grafting before,
and disable it after, using 'set-grafting'.
The Perl replacement added in d8173f2 leads some tests to involve
grafting, which in turn triggers derivation builds that rebuild the
world. Work around that.
* tests/packages.scm: Add call to '%graft?'.
("package-derivation, direct graft")
("package-cross-derivation, direct graft"): Comment out.
Reported by Mark H Weaver.
* guix/scripts/build.scm (options->derivations): When SRC and GRAFT? are
true, use the source of P's replacement.
* tests/guix-build.sh: Add test.
This provides the ability to use numbers in package names.
Fixes <http://bugs.gnu.org/19219>.
* guix/utils.scm (package-name->name+version): New procedure.
* gnu/packages.scm (%find-package): Add a FALLBACK? keyword argument.
Use the previous method when no package is found.
(specification->package+output, specification->package): Adapt
documentation to new syntax.
* doc/guix.texi (Invoking guix package, Invoking guix import): Likewise.
* guix/ui.scm (package-specification->name+version+output): Likewise.
* guix/scripts/import/hackage.scm (show-help): Likewise.
* tests/guix-build.sh: Adapt to new syntax.
* tests/guix-lint.sh: Likewise.
* tests/guix-package.sh: Likewise.
* tests/ui.scm ("package-specification->name+version+output"): Likewise.
* tests/utils.scm ("package-name->name+version"): Likewise.
* NEWS: Mention new syntax.
Fixes <http://bugs.gnu.org/22139>.
* guix/grafts.scm (graft-derivation): Rename to...
(graft-derivation/shallow): ... this.
(graft-origin-file-name, item->deriver, non-self-references)
(cumulative-grafts, graft-derivation): New procedures
* tests/grafts.scm ("graft-derivation, grafted item is a direct
dependency"): Clarify title. Use 'grafted' instead of 'graft' to refer
to the grafted derivation.
("graft-derivation, grafted item is an indirect dependency")
("graft-derivation, no dependencies on grafted output"): New tests.
* guix/packages.scm (input-graft): Change to take a package instead of
an input.
(input-cross-graft): Likewise.
(fold-bag-dependencies): New procedure.
(bag-grafts): Rewrite in terms of 'fold-bag-dependencies'.
* tests/packages.scm ("package-derivation, indirect grafts"): Comment out.
* doc/guix.texi (Security Updates): Mention run-time dependencies and
recursive grafting.
Before that, outputs of a derivation could be left referring to the
ungrafted version of the derivation.
* guix/grafts.scm (graft-derivation)[outputs]: Change to a list of
name/file pairs.
* guix/grafts.scm (graft-derivation)[build]: Add 'old-outputs' variable
and use it when computing 'mapping'. Use 'mapping' directly.
* tests/grafts.scm ("graft-derivation, multiple outputs"): New test.
* guix/store.scm (read-path-info): Use #f when we get the empty string
for DERIVER.
* guix/scripts/publish.scm (narinfo-string): Adjust accordingly.
* tests/store.scm ("path-info-deriver"): New test.
Before that, /nar requests could succeed if the requested store item
exists but is invalid (although such requests were unlikely because the
corresponding narinfo request would have failed.)
* guix/scripts/publish.scm (render-nar): Add 'store' parameter. Use
'valid-path?' instead of 'file-exists?'.
(make-request-handler): Adjust 'render-nar' call accordingly.
* tests/publish.scm ("/nar/invalid"): New test.
Fixes <http://bugs.gnu.org/19816>.
* guix/scripts/environment.scm (evaluate-input-search-paths)
(build-inputs): Delete.
(evaluate-profile-search-paths, strip-input-name)
(package-or-package+output?, package-environment-inputs)
(build-environment, inputs->profile-derivations): New procedures.
(create-environment, show-search-paths, launch-environment)
(launch-environment/container): Replace 'inputs' argument
with 'profile' argument.
(package+propagated-inputs): Strip off names off of input tuples.
(options/resolve-packages): Handle input tuples that specify an output
in expressions.
(guix-environment): Convert inputs into a profile to use in the
environment. Remove non-package inputs such as origins from
environment inputs.
* doc/guix.texi ("invoking guix environment"): Document package+output
tuples for --expression option.
* tests/guix-environment.sh: Update tests.
* tests/guix-environment-container.sh: Likewise.
Co-authored-by: Ludovic Courtès <ludo@gnu.org>
* guix/scripts/build.scm (transform-package-source): Return a procedure
that expects a single object rather than a list of packages.
(options->transformation): Rewrite to precompute the list of applicable
transformations and to return a procedure that expects a single object
rather than a list of objects.
(options->derivations): Adjust accordingly.
* tests/scripts-build.scm: New file.
* Makefile.am (SCM_TESTS): Add it.
* guix/packages.scm <package>: Use '@' in record printer.
* guix/import/cabal.scm <cabal-package>: Likewise
* guix/import/elpa.scm <elpa-package>: Likewise.
* tests/packages.scm: Adapt to it.
* guix/tests/lint.scm ("patches: file names", "patches: not found"): Use
'dummy-origin'. 'sha256' field was wrongly set to a string instead of a
bytevector.
Fixes <http://bugs.gnu.org/22281>.
Reported by Christopher Allan Webber <cwebber@dustycloud.org>.
* gnu/system/grub.scm (eye-candy): Add 'root-fs' parameter. Replace
'search --file' command in the output with whatever 'grub-root-search'
returns.
(grub-root-search): New procedure.
(grub-configuration-file): Add 'store-fs' parameter. Use
'grub-root-search' instead of hard-coded 'search --file' commands.
* gnu/system.scm (store-file-system,
operating-system-store-file-system): New procedures.
(operating-system-grub.cfg): Use it, and adjust call to
'grub-configuration-file'.
* tests/system.scm: New file.
* Makefile.am (SCM_TESTS): Add it.
Fixes <http://bugs.gnu.org/22391>.
* tests/cran.scm (beautify-description: use double spacing,
beautify-description: transform fragment into sentence). Move
from here ...
* tests/import-utils.scm: ... to here. New file.
* Makefile.am (SCM_TESTS): Add import-utils.
* guix/import/cran.scm (%bioconductor-updater,
latest-bioconductor-release, bioconductor-package?): New procedures.
(cran->guix-package): Support repositories other than CRAN.
(%bioconductor-url, %bioconductor-svn-url): New variables.
(description->package): Update signature to distinguish between packages
from different repositories.
(latest-release): Rename procedure ...
(latest-cran-release): ... to this.
(cran-package?): Do not assume all R packages are available on CRAN.
* tests/cran.scm: Update tests.
* guix/scripts/import/cran.scm: Add "--archive" option and default to
CRAN.
* guix/scripts/refresh.scm (%updaters): Add "%bioconductor-updater".
* doc/guix.texi: Document Bioconductor importer and updater.
* guix/scripts/package.scm (find-packages-by-description): Change 'rx'
parameter to 'regexps'.
[matches-all?, matches-one?]: New procedures.
Use them.
(process-query): Collect regexps from all 'search' queries, and pass
them to 'find-packages-by-description'.
* tests/guix-package.sh: Add tests.
* doc/guix.texi (Invoking guix package): Document it.
Before that it would include #f for most origins since that the default
value of 'origin-patch-guile'.
* guix/scripts/graph.scm (bag-node-edges): When 'origin-patch-guile'
returns #f, use (default-guile).
* tests/graph.scm ("bag DAG, including origins"): Check for an edge from
O to (default-guile).
Fixes <http://bugs.gnu.org/22280>.
Reported by Leo Famulari <leo@famulari.name>.
* guix/scripts/graph.scm (%bag-emerged-node-type)[edges]: Mimic
%BAG-NODE-TYPE. This is a followup to 38b92da.
* guix/packages.scm (package-transitive-native-search-paths): New
procedure.
* tests/packages.scm ("package-transitive-native-search-paths"): New
test.
* guix/derivations.scm (substitution-oracle): Add #:mode parameter and
honor it.
(derivation-prerequisites-to-build): Likewise.
[derivation-built?]: Take it into account.
* guix/ui.scm (show-what-to-build): Add #:mode parameter. Pass it to
'substitute-oracle' and 'derivations-prerequisites-to-build'.
* tests/derivations.scm ("derivation-prerequisites-to-build in 'check'
mode"): New test.
* guix/store.scm (%protocol-version): Set minor to 15.
(build-mode): New enumerate type.
(build-things): Add 'mode' parameter; pass it to the RPC.
* tests/store.scm ("build-things, check mode"): New check.
* guix/scripts/lint.scm (patch-file-name): New procedure.
(check-vulnerabilities): Use it to filter out patched vulnerabilities.
* tests/lint.scm ("cve: one patched vulnerability"): New test.
* gnu/services/dmd.scm (assert-no-duplicates): Rename to...
(assert-valid-graph): ... this.
[provisions]: New variable.
[assert-satisfied-requirements]: New procedure.
Use it.
* tests/guix-system.sh: Add test with unmet dmd requirements.
Fixes <http://bugs.gnu.org/21958>.
* guix/scripts/environment.scm (status->exit-code): New procedure.
(exit/status, primitive-exit/status): Use it.
* tests/guix-environment-container.sh: Add test.
Fixes <http://bugs.gnu.org/21410>.
Reported by Alex Vong <alexvong1995@gmail.com>.
* tests/guix-environment-container.sh: Exit with 77 when
'((@@ (guix scripts environment) assert-container-features))' fails.
Fixes <http://bugs.gnu.org/21817>.
Reported by Petter Berntsen <petter@mykolab.ch>.
* guix/scripts/gc.scm (guix-gc)[assert-no-extra-arguments]: New
procedure.
Use it for actions 'collect-garbage', 'optimize', and 'verify'.
* tests/guix-gc.sh: Add tests.
Partly fixes <http://bugs.gnu.org/20255>.
* guix/scripts/package.scm (search-path-environment-variables): Change
'profile' to 'profiles'; expect it to be a list.
(display-search-paths): Likewise.
(%default-options): Remove 'profile' entry.
(%options) <--profile>: Keep previous values associated with 'profile'
in RESULT.
(guix-package)[process-actions, process-query]: Handle the possible
lack of 'profile' pair in OPTS.
This patch changes the --ad-hoc flag to be positional. That is, the
packages that appear before --ad-hoc are interpreted as packages whose
inputs should be in the environment; the packages that appear after are
interpreted as packages to be directly added to the environment.
* guix/scripts/environment.scm (tag-package-arg, compact): New
procedures.
(%options): Tweak the handlers for --load and --expression options.
(options/resolve-packages): Preserve package mode tag.
(parse-args): Tweak argument handler to use package tagging procedure.
(guix-environment): Apply ad-hoc behavior on a per package basis.
* tests/guix-environment.sh: Add test.
* doc/guix.texi ("invoking guix environment"): Document new behavior of
--ad-hoc.
* guix/scripts/substitute.scm (lookup-narinfos/diverse): New procedure.
(lookup-narinfo): Use it.
(process-query): Change #:cache-url to #:cache-urls.
[valid?]: Remove 'narinfo?' check, which is no longer necessary.
Use 'lookup-narinfos/diverse' instead of 'lookup-narinfos'.
(process-substitution): Change #:cache-url to #:cache-urls.
(%cache-url): Rename to...
(%cache-urls): ... this. Turn into a list.
(guix-substitute): Remove 'getaddrinfo' test with early exit. Adjust
calls to 'process-query' and 'process-substitution'.
* tests/substitute.scm: Change '%cache-url' to '%cache-urls'.
* guix/scripts/system.scm (specification->file-system-mapping): Move from
here...
* guix/ui.scm (specification->file-system-mapping): ... to here.
* guix/scripts/enviroment.scm (show-help): Show help for new options.
(%options): Add --container --network, --expose, and --share options.
(%network-configuration-files): New variable.
(launch-environment, launch-environment/container, requisites*,
inputs->requisites): New procedures.
(guix-environment): Spawn new process in a container when requested.
* doc/guix.texi (Invoking guix environment): Document it.
* tests/guix-environment-container.sh: New file.
* Makefile.am (SH_TESTS): Add it.
* guix/scripts/archive.scm (show-help, %options): Add --extract.
(guix-archive): Honor it.
* tests/guix-archive.sh: Test it.
* doc/guix.texi (Invoking guix archive): Document it.
This patch rewrites GuixSD services to make them extensible.
* gnu-system.am (GNU_SYSTEM_MODULES): Add gnu/services/dbus.scm.
* gnu/services.scm (<service>): Replace with new record type.
(<service-extension>, <service-type>): New record types.
(write-service-type, compute-boot-script, second-argument): New
procedures.
(%boot-service, boot-service-type): New variables.
(file-union, directory-union, modprobe-wrapper,
activation-service->script, activation-script,
gexps->activation-gexp): New procedures.
(activation-service-type, %activation-service): New variables.
(etc-directory, files->etc-directory, etc-service): New procedures.
(etc-service-type, setuid-program-service, firmware-service-type): New
variables.
(firmware->activation-gexp): New procedure.
(&service-error, &missing-target-service-error,
&ambiguous-target-service-error): New condition types.
(service-back-edges, fold-services): New procedures.
* gnu/services/avahi.scm (<avahi-configuration>): New record type.
(configuration-file): Replace keyword parameters with a single
'config' parameter.
(%avahi-accounts, %avahi-activation, avahi-service-type): New
variables.
(avahi-dmd-service): New procedure.
(avahi-service): Rewrite using 'service' and 'avahi-configuration'.
* gnu/services/base.scm (%root-file-system-dmd-service,
root-file-system-service-type): New variables.
(root-file-system-service): Use them.
(file-system->dmd-service-name): New procedure.
(file-system-service-type): New variable.
(file-system-service): Use it. Replace keyword parameters with a
single 'file-system' object.
(user-unmount-service-type): New variable.
(user-unmount-service): Use it.
(user-processes-service-type): New variable.
(user-processes-service): Use it.
(host-name-service-type): New variable.
(host-name-service): Use it.
(console-keymap-service-type): New variable.
(console-keymap-service): Use it.
(console-font-service-type): New variable.
(console-font-service): Use it.
(mingetty-pam-service, mingetty-dmd-service): New procedures.
(mingetty-service-type): New variable.
(mingetty-service): Use it.
(nscd-dmd-service): New procedure.
(nscd-activation, nscd-service-type): New variables.
(nscd-service): Use the latter.
(syslog-service-type): New variable.
(syslog-service): Use it.
(<guix-configuration>): New record type.
(%default-guix-configuration): New variable.
(guix-dmd-service, guix-accounts, guix-activation): New procedures.
(guix-service-type): New variable.
(guix-service): Replace list of keyword parameters with a single
'config' parameter. Rewrite using 'service'.
(<udev-configuration>): New record type.
(udev-dmd-service): New procedure.
(udev-service-type): New variable.
(udev-service): Use it.
(device-mapping-service-type): New variable.
(device-mapping-service): Use it.
(swap-service-type): New variable.
(swap-service): Use it.
* gnu/services/databases.scm (<postgresql-configuration>): New record
type.
(%postgresql-accounts, postgresql-activation): New variables.
(postgresql-dmd-service): New procedure.
(postgresql-service): Rewrite using 'service' and
'postgresql-configuration'.
* gnu/services/dbus.scm: New file.
* gnu/services/desktop.scm (dbus-configuration-directory, dbus-service):
Remove.
(wrapped-dbus-service): New procedure.
(<upower-configuration>): New record type.
(upower-configuration-file): Replace keyword parameters with single
<upower-configuration> parameter.
(%upower-accounts, %upower-activation): New variables.
(upower-dbus-service, upower-dmd-service): New procedures.
(upower-service-type): New variable.
(upower-service): Rewrite using 'service' and 'upower-configuration'.
(%colord-activation, %colord-accounts): New variables.
(colord-dmd-service): New procedure.
(colord-service-type): New variable.
(colord-service): Rewrite using 'service'.
(<geoclue-configuration>): New record type.
(geoclue-configuration-file): Replace keyword parameters with a single
'config' parameter.
(geoclue-dbus-service, geoclue-dmd-service): New procedures.
(%geoclue-accounts, geoclue-service-type): New variables.
(geoclue-service): Rewrite using 'service' and
'geoclue-configuration'.
(%polkit-accounts, %polkit-pam-services, polkit-service-type): New
variables.
(polkit-dmd-service): New procedure.
(polkit-service): Rewrite using 'service'.
(<elogind-configuration>)[elogind]: New field.
(elogind-dmd-service): New procedure.
(elogind-service-type): New variable.
(elogind-service): Rewrite using 'service'.
(%desktop-services): Remove argument to 'dbus-service'. Remove 'map'
over %BASE-SERVICES.
* gnu/services/dmd.scm (dmd-boot-gexp): New procedure.
(dmd-root-service-type, %dmd-root-service): New variables.
(dmd-service-type): New macro.
(<dmd-service>): New record type.
* gnu/services/lirc.scm (<lirc-configuration>): New record type.
(%lirc-activation): New variable.
(lirc-dmd-service): New procedure.
(lirc-service-type): New variable.
(lirc-service): Rewrite using 'service' and 'lirc-configuration'.
* gnu/services/networking.scm (<static-networking>): New record type.
(static-networking-service-type): New variable.
(static-networking-service): Rewrite using 'service' and
'static-networking'.
(dhcp-client-service-type): New variable.
(dhcp-client-service): Rewrite using 'service'.
(<ntp-configuration>): New record type.
(ntp-dmd-service): New procedure.
(ntp-service-type): New variable.
(ntp-service): New procedure.
(%tor-accounts, tor-service-type): New variable.
(tor-dmd-service): New procedure.
(tor-service): Rewrite using 'service'.
(<bitlbee-configuration>): New record type.
(bitlbee-dmd-service): New procedure.
(%bitlbee-accounts, %bitlbee-activation, bitlbee-service-type): New
variables.
(bitlbee-service): Rewrite using 'service'.
(%wicd-activation): New variable.
(wicd-dmd-service): New procedure.
(wicd-service-type): New variable.
(wicd-service): Rewrite using 'service'.
* gnu/services/ssh.scm (<lsh-configuration>): New record type.
(activation): Rename to...
(lsh-initialization): ... this.
(lsh-activation, lsh-dmd-service, lsh-pam-services): New procedures.
(lsh-service-type): New variable.
(lsh-service): Rewrite using 'service' and 'lsh-configuration'.
* gnu/services/web.scm (<nginx-configuration>): New record type.
(%nginx-accounts): New variable.
(nginx-activation, nginx-dmd-service): New procedures.
(nginx-service-type): New variable.
(nginx-service): Rewrite using 'service' and 'nginx-configuration'.
* gnu/services/xorg.scm (<slim-configuration>): New record type.
(slim-pam-service, slim-dmd-service): New procedures.
(slim-service-type): New variable.
(slim-service): Rewrite using 'service' and 'slim-configuration'.
* gnu/system.scm (file-union): Remove.
(other-file-system-services): Adjust to new 'file-system-service'
signature.
(essential-services): Add #:container? parameter. Add
%DMD-ROOT-SERVICE, %ACTIVATION-SERVICE, and calls to
'pam-root-service', 'account-service', 'operating-system-etc-service',
and a SETUID-PROGRAM-SERVICE instance.
(operating-system-services): Pass #:container? to 'essential-services.
(etc-directory): Remove.
(operating-system-etc-service): New procedure. Rewrite as a call to
'etc-service'.
(operating-system-accounts): Change to not return accounts required by
services.
(operating-system-etc-directory): Rewrite as a call to 'fold-services'
and 'etc-directory'.
(user-group->gexp, user-account->gexp, modprobe-wrapper): Remove.
(operating-system-activation-script): Rewrite as a call to
'fold-services' and 'activation-service->script'.
(operating-system-boot-script): Likewise.
(operating-system-derivation): Add call to 'lower-object'.
(emacs-site-file, emacs-site-directory, shells-file): Change to use
'computed-file' and 'scheme-file' instead of the monadic procedures.
* gnu/system/install.scm (cow-store-service-type): New variable.
(cow-store-service): Rewrite using 'service'.
(/etc/configuration-files): New procedure.
(configuration-template-service-type,
%configuration-template-service): New variables.
(configuration-template-service): Remove.
(installation-services): Adjust accordingly. Adjust argument to
'guix-service'.
* gnu/system/linux.scm (/etc-entry, pam-root-service): New procedures.
(pam-root-service-type): New variable.
* gnu/system/shadow.scm (user-group->gexp, user-account->gexp,
account-activation, etc-skel, account-service): New procedures.
(account-service-type): New variable.
* tests/services.scm: New file.
* doc/guix.texi (Base Services, Desktop Services): Adjust accordingly.
(Defining Services): Rewrite.
* doc/images/service-graph.dot: New file.
* doc.am (DOT_FILES): Add it.
* po/guix/POTFILES.in: Add gnu/services.scm.
* guix/scripts/system.scm (perform-action): Add #:derivations-only?
parameter and honor it.
(show-help, %options): Add '--derivation'.
(guix-system): Pass #:derivations-only? to 'perform-action'.
* tests/guix-system.sh: Test it.
* doc/guix.texi (Invoking guix system): Document it.
* guix/gexp.scm (<scheme-file>): New record type.
(scheme-file, scheme-file-compiler): New procedures.
* tests/gexp.scm ("scheme-file"): New test.
* doc/guix.texi (G-Expressions): Document 'scheme-file'.
