* gnu/bootloader/grub.scm (<grub-theme>): Add `gfxmode' entry.
(eye-candy): Use it.
* doc/guix.texi (Bootloader Configuration): Document it.

* doc/guix.texi (Keyboard Layout and Networking and Partitioning):
Note JFS support.

This solution was kindly provided by Bernard M. Wiedemann.

* gnu/services/base.scm (console-font-service-type): Add ter132n (terminus 132
nomal) font example, for HDPI displays.
* doc/guix.texi (Invoking guix system): Update to `guix system search console'
example output.

* gnu/services/web.scm (%mumi-activation, %mumi-accounts): New variables.
(mumi-shepherd-services): New procedure.
(mumi-service-type): New variable.
* doc/guix.texi (Web Services): Document it.

* gnu/build/vm.scm (load-in-linux-vm): Move Qemu network configuration from
ARCH-SPECIFIC-FLAGS to the Qemu command line.  Use the "-nic" option of Qemu
instead of "-device" and "-net".
* gnu/system/vm.scm (common-qemu-options): Do not add a '-net' command.
(virtual-machine-compiler): Use "-nic user,..." instead of "-net".
* doc/guix.texi (Installing Guix in a VM, Invoking guix system, Running Guix
in a VM): Do the same for examples.

* guix/scripts/challenge.scm (call-with-nar): New procedure.
(narinfo-contents): Express in terms of 'call-with-nar'.
(call-with-mismatches, report-differing-files/external): New
procedures.
(%diffoscope-command): New variable.
(%options): Support "diffoscope" and a string starting with "/".
* tests/challenge.scm (call-mismatch-test): New procedure.
("differing-files"): Rewrite in terms of 'call-mismatch-test'.
("call-with-mismatches"): New test.
* doc/guix.texi (Invoking guix challenge): Document it.

* guix/scripts/challenge.scm (dump-port*): New variable.
(archive-contents, store-item-contents, narinfo-contents)
(differing-files, report-differing-files): New procedures.
(summarize-report): Add #:report-differences and call it.
(show-help, %options): Add "--diff".
(%default-options): Add 'difference-report' key.
(report-differing-files): Parameterize CURRENT-TERMINAL-COLUMNS and pass
 #:report-differences to 'summarize-report'.
* guix/tests/http.scm (%local-url): Add optional argument.
(call-with-http-server): Fix docstring typo.
* tests/challenge.scm (query-path-size, make-narinfo): New procedures.
("differing-files"): New test.
* doc/guix.texi (Invoking guix challenge): Document "--diff".

* guix/scripts/archive.scm (show-help, %options): Add '--list'.
(list-contents): New procedure.
(guix-archive): Honor the '--list' option.
* tests/guix-archive.sh: Test it.
* doc/guix.texi (Invoking guix archive): Document it.

* doc/guix.texi (G-Expressions): Add missing MKDIR call.

* guix/scripts/pack.scm (squashfs-image)[symlinks*]: New variable.
[build]: Use it instead of SYMLINKS.
(guix-pack): Emit a warning and a hint when "bash" and "bash-minimal"
are missing and PACK-FORMAT is 'squashfs.
* doc/guix.texi (Invoking guix pack): Document the /bin/sh requirement
for Singularity.

* doc/guix.texi (bitlbee-configuration): The field that refers to the bitlbee
package is called "bitlbee", not "package".

* guix/scripts/lint.scm (%options): Add '--load-path' option.
* doc/guix.texi: Document it.
* tests/guix-lint.sh: Test it.

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

* guix/build/syscalls.scm (MS_LAZYTIME): New variable.
* gnu/build/file-systems.scm (mount-flags->bit-mask): Add match rules for
  'strict-atime' and 'lazy-time'.
* doc/guix.texi (File Systems): Add 'strict-atime' and 'lazy-time' to the list
  of supported flags.

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

* guix/scripts/system.scm (show-help): Add "describe".
(process-command): Handle it.
(guix-system): Likewise.
* doc/guix.texi (Invoking guix system): Document it.

* gnu/machine.scm (<machine>): Rename accessor to
'%machine-operating-system'.
(machine-operating-system): New procedure.
* doc/guix.texi (Service Reference): Mention it.

* 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'.

* gnu/services.scm (object->pretty-string)
(channel->code, channel->sexp, provenance-file)
(provenance-entry): New procedures.
(provenance-service-type): New variable.
* gnu/system.scm (operating-system-with-provenance): New procedure.
* doc/guix.texi (Service Reference): Document 'provenance-service-type'.

* gnu/machine/ssh.scm (<machine-ssh-configuration>)[host-key]: New field.
(machine-ssh-session): Pass #:host-key to 'open-ssh-session'.
* doc/guix.texi (Invoking guix deploy): Document it.

* gnu/services/desktop.scm: (<gnome-keyring-configuration>): New record type.
(pam-gnome-keyring): New procedure.
(gnome-keyring-service-type): New variable.
* doc/guix.texi (Desktop Services): Document it.

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

This reverts commit 7b40d591.

* guix/build-system/qt.scm, guix/build/qt-build-system.scm: New files.
* Makefile.am (MODULES): Add them.
* doc/guix.texi (Buiild systems): Add the new build system.

* gnu/services/desktop.scm: (polkit-wheel): New variable.
(polkit-wheel-service): New service.
* doc/guix.texi: Document polkit-wheel-service.

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

* guix/gexp.scm (local-file): Distinguish the case where FILE is a
literal string and when it's not.  Add a clause for when FILE is not a
literal string.
* tests/gexp.scm ("local-file, non-literal relative file name"): New test.
* doc/guix.texi (G-Expressions): Update accordingly.

* doc/guix.texi (PAM Mount Service): Add xref to the "SXML" section of
the Guile manual.

* gnu/services/pam-mount.scm: New file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
* doc/guix.texi (PAM Mount Service): New subsection.

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

* doc/guix.texi (php-fpm-service-type): Note that the socket-group
default is "nagios" and not "php-fpm".

* guix/scripts/build.scm (set-build-options-from-command-line): Pass
 #:offload? #f when 'keep-failed? is true.
* doc/guix.texi (Common Build Options): Document it.

This is a followup to bc69ea2d.

* guix/scripts/build.scm (show-build-options-help): Rename
"--no-build-hook" to "--no-offload".
(%standard-build-options): Likewise, and warn when "--no-build-hook" is
passed.
* nix/nix-daemon/guix-daemon.cc (options): Add "--no-offload" and mark
"--no-build-hook" as hidden.
* guix/scripts/offload.scm: Adjust comment.
* doc/guix.texi (Invoking guix-daemon, Common Build Options): Replace
"--no-build-hook" with "--no-offload".
* etc/completion/fish/guix.fish, etc/completion/zsh/_guix: Adjust
accordingly.

* guix/scripts/pack.scm (guix-pack): Collect 'manifest' options, and
concatenate the resulting manifests.
* tests/guix-pack.sh: Test it.
* doc/guix.texi (Invoking guix pack): Document it.

* guix/scripts/package.scm (manifest-action): Remove.
(%actions): Remove it.
(load-manifest): New procedure.
(process-actions): Handle 'manifest' options.  Define 'files' from
'manifest' options.  Define 'manifest' based on FILES.  Define 'trans'
to represent the final transaction.
* tests/guix-package.sh: Test it.
* doc/guix.texi (Invoking guix package): Mention

* tests/guix-environment.sh: Test 'guix environment' with two '-m' options.
* doc/guix.texi (Invoking guix environment): Explain that '-m' can be
passed multiple times.

* doc/guix.texi (Web Services)[fcgiwrap-configuration]: Remove a stray
period.

* guix/scripts/pack.scm (%options, show-help): Add "--derivation".
(guix-pack): Honor it.
* tests/guix-pack.sh: Test it.
* doc/guix.texi (Invoking guix pack): Document it.

* doc/guix.texi (Web Services)[nginx-php-fpm-location]: Fix example to
actually use nginx-php-fpm-location.

* doc/guix.texi (Web Services)[php-fpm-configuration]: Change language
to suggest there are more than two options.

* doc/guix.texi (Invoking guix deploy): Replace "Nix system type" with
"system type" for consistency.

* guix/scripts/time-machine.scm (show-help): Call 'show-build-options-help'.
(%options): Add %STANDARD-BUILD-OPTIONS.
(%default-options): New variable.
(parse-args): Pass (list %default-options) to 'parse-command-line' and
remove #:build-options? parameter.
(guix-time-machine): Call 'set-build-options-from-command-line' and wrap
'cached-channel-instance' call in 'with-status-verbosity'.
* doc/guix.texi (Invoking guix time-machine): Mention common build options.

* guix/scripts/time-machine.scm: New file.
* Makefile.am: (MODULES): Add it.
* guix/scripts/pull.scm (channel-list): Export.
* guix/inferior.scm (cached-channel-instance): New procedure.
(inferior-for-channels): Use it.
* doc/guix.texi (Invoking guix time-machine): New section.
(Channels): Cross-reference it.

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

* doc/guix.texi (Invoking guix publish): Drop stray quotation mark.

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

* gnu/services/networking.scm (pagekite-service-type): New service type.
(<pagekite-configuration>): New record type.
(pagekite-shepherd-service): New procedure.
* doc/guix.texi (Networking Services): Document it.