* doc/guix.texi (Invoking guix pack): Add xrefs to "guix publish", "guix
copy", and "guix archive".
(Invoking guix archive): Add xref to "guix pack".

* doc/guix.texi (Web Services): The body of an NGINX-LOCATION-CONFIGURATION
is a list of strings and not a string.

Fixes <https://bugs.gnu.org/20239>.

* gnu/services/virtualization.scm (<qemu-binfmt-configuration>)[guix-support?]:
New field.
(qemu-binfmt-guix-chroot): New procedure.
(qemu-binfmt-service-type)[extensions]: Add GUIX-SERVICE-TYPE.
* doc/guix.texi (Virtualization Services): Document 'guix-support?'.
(Additional Build Options): Mention binfmt_misc and offloading under
'--system'.

* gnu/services/virtualization.scm (<qemu-platform>): New record type.
(bv): New macro.
(%i386, %i486, %alpha, %arm, %armeb, %sparc, %sparc32plus)
(%ppc, %ppc64, %ppc64le, %m68k, %mips, %mipsel, %mipsn32el)
(%mips64, %mips64el, %sh4, %sh4eb, %s390x, %aarch64, %hppa)
(%qemu-platforms): New variables.
(lookup-qemu-platforms): New procedure.
(<qemu-binfmt-configuration>): New record type.
(qemu-platform->binfmt): New procedures.
(%binfmt-mount-point, %binfmt-register-file, %binfmt-file-system)
(qemu-binfmt-service-type): New variables.
(qemu-binfmt-shepherd-services): New procedures.
* doc/guix.texi (Virtualization Services): Add "Transparent Emulation
with QEMU" heading.

binfmt fixlet

* doc/guix.texi (Invoking guix environment): Add missing @ in example.

* gnu/services/monitoring.scm: New file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
* doc/guix.texi (Monitoring Services): Document it.

* gnu/services/base.scm (<guix-configuration>)[log-compression]: New
field.
(guix-shepherd-service): Use 'match-record' instead of 'match'.  Honor
'log-compression'.
* doc/guix.texi (Base Services): Document 'log-compression'.

* guix/scripts/publish.scm (render-log-file): New procedure.
(make-request-handler): Add "log" case.
* tests/publish.scm ("/log/NAME")
("/log/NAME not found"): New tests.
* doc/guix.texi (Invoking guix publish): Document /log URLs.

* doc/guix.texi (Requirements): Move zlib to mandatory and libbz2 to
optional.
* README: Ditto.

* nix/nix-daemon/guix-daemon.cc (GUIX_OPT_LOG_COMPRESSION): New macro.
(options): Mark "disable-log-compression" as hidden and add
"log-compression".
(parse_opt): Handle GUIX_OPT_LOG_COMPRESSION.
* nix/libstore/build.cc (DerivationGoal): Add 'gzLogFile'.
(openLogFile): Initialize it when 'logCompression' is COMPRESSION_GZIP.
(closeLogFile, handleChildOutput): Honor 'gzLogFile'.
* nix/libstore/globals.hh (Settings)[compressLog]: Remove.
[logCompression]: New field.
(CompressionType): New enum.
* nix/libstore/globals.cc (Settings::Settings): Initialize it.
(update): Remove '_get' call for 'compressLog'.
* nix/local.mk (guix_daemon_LDADD, guix_register_LDADD): Add -lz.
* guix/store.scm (log-file): Handle '.gz' log files.
* tests/guix-daemon.sh: Add test with '--log-compression=gzip'.
* doc/guix.texi (Invoking guix-daemon): Adjust accordingly.
* config-daemon.ac: Check for libz and zlib.h.

* doc/guix.texi (Desktop Services): Add a paragraph about the current status of
Wayland in Guix.

* doc/guix.texi (Desktop Services): "orMATE" --> "or MATE".

* gnu/services/desktop.scm (<mate-desktop-configuration>,
mate-desktop-service-type): New variable.
(mate-desktop-service): New public variable.

* doc/guix.texi (Desktop Services): Document the service.

Signed-off-by: Danny Milosavljevic <dannym@scratchpost.org>

* gnu/services/networking.scm (<static-networking>)[requirement]: New field.
(static-networking-shepherd-service): Don't override requirement for loopback.
(static-networking-service): Expose 'requirement' parameter.  Default to UDEV.
* gnu/services/base.scm (%base-services): Add (requirement '()) for loopback service.
* doc/guix.texi (Networking Services): Document it.

* doc/guix.texi (Application Setup): Transpose words.

* gnu/packages/bioinformatics.scm (r-sparql, r-acsnminer, r-gkmsvm)
(r-maldiquant, r-gprofiler)[home-page]: Use HTTPS.
* gnu/packages/cran.scm (r-colorspace, r-auc, r-calibrate, r-shape)
(r-compare, r-proxy, r-sp, r-rmtstat, r-lmtest, r-inline, r-bbmle)
(r-lpsolve, r-energy, r-suppdists, r-ksamples, r-cvst, r-drr, r-prodlim)
(r-ddalpha, r-rcpproll, r-ipred, r-psych, r-truncnorm, r-rsolnp, r-laeken)
(r-vcd, r-ica, r-scatterplot3d)[home-page]: Likewise.
* gnu/packages/machine-learning.scm (r-adaptivesparsity, r-kernlab)
[home-page]: Likewise.
* gnu/packages/maths.scm (r-quadprog, r-pracma)[home-page]: Likewise.
* gnu/packages/statistics.scm (r-boot, r-cluster, r-codetools, r-foreign)
(r-kernsmooth, r-nlme, r-mgcv, r-rpart, r-dichromat, r-estimability)
(r-pheatmap, r-labeling, r-magrittr, r-munsell, r-rcolorbrewer, r-sendmailr)
(r-gdtools, r-acepack, r-formula, r-locfit, r-chron, r-coda, r-backports)
(r-brew, r-commonmark, r-rstudioapi, r-plotrix, r-gridbase, r-bitops)
(r-catools, r-xnomial, r-lambda-r, r-whoreadsthis, r-futile-options)
(r-futile-logger, r-segmented, r-snow, r-iterators, r-foreach, r-doparallel)
(r-domc, r-irlba, r-registry, r-e1071, r-bigmemory-sri, r-r-methodss3)
(r-tidyselect, r-base64, r-runit, r-sfsmisc, r-gtools, r-gdata, r-gplots)
(r-ztable, r-vipor, r-sourcetools, r-statmod, r-compquadform, r-mixtools)
(r-fastica, r-diptest, r-modeltools, r-flexmix, r-deoptimr, r-pcapp)
(r-rrcov, r-fit-models, r-robust, r-trimcluster, r-fpc, r-fnn)
(r-modelmetrics, r-nloptr, r-lme4, r-tclust, r-lubridate)[home-page]:
Likewise.
* gnu/packages/web.scm (r-htmltools, r-hwriter, r-rjson, r-rook)[home-page]:
Likewise.
* doc/guix.texi (Invoking guix import, Invoking guix refresh): Likewise.

* gnu/services/messaging.scm (prosody-configuration): Use HTTPS whenever
referring to prosody.im URLs in documentation.
* doc/guix.texi (Messaging Services): Likewise.

This fixes a build failure reported by Catonano <catonano@gmail.com>.

* doc/guix.texi (Mail Services): Escape ‘{’ and ‘}’ everywhere.

* gnu/packages/mail.scm (dovecot): Update to 2.3.0.
* gnu/services/mail.scm (dovecot-configuration)[director-doveadm-port]
[ssl-parameters-regenerate]: Delete fields.
[ssl-protocols]: Rename to...
[ssl-min-protocol]: ...this.
[mail-log-prefix, mdbox-rotate-size, ssl-cipher-list, imap-logout-format]:
Update default values.
* doc/guix.texi (Mail Services): Reflect the above changes to the service.

Fixes <https://bugs.gnu.org/29813>.
Reported by Martin Castillo <castilma@uni-bremen.de>.

* doc/guix.texi (Invoking guix-daemon, Invoking guix package): Add
missing "/guix" after LOCALSTATEDIR.

* guix/scripts/build.scm (numeric-extension?, tarball-base-name): New
procedures, formerly in 'package-with-source'.
(transform-package-source)[new-sources]: Look for '=' in URI.  Each
element of the list of now a (PKG VERSION SOURCE) tuple.
Pass VERSION to 'package-with-source'.
(package-with-source): Add 'version' parameter and honor it.
* tests/scripts-build.scm ("options->transformation, with-source, PKG=URI")
("options->transformation, with-source, PKG@VER=URI"): New tests.
* doc/guix.texi (Package Transformation Options): Document the new
forms.

* gnu/services/base.scm (urandom-seed-service-type)[default-value]: New
field.
(urandom-seed-service): Mark as deprecated.
(%base-services): Use URANDOM-SEED-SERVICE-TYPE directly.
* gnu/services/base.scm (%base-services):
* doc/guix.texi (Base Services): Document 'urandom-seed-service-type'
instead of 'urandom-seed-service'.

* doc/guix.texi (Derivations): Add paragraph on fixed-output
derivations.

* gnu/services/base.scm (urandom-seed-shepherd-service): Try to read from
'/dev/hwrng' at boot, as a supplement to any saved random seed.
* doc/guix.texi (Base Services): Document the new feature.

* doc/guix.texi (operating-system Reference): Clarify the situation of
UID 0.

* doc/guix.texi (Web Services): Document 'raw-content'.
* gnu/services/web.scm (<nginx-server-configuration>)[raw-content]: New field.
(emit-nginx-server-config): Add it.

* doc/guix.texi (Web Services, Version Control Services): Update accordingly.
* gnu/services/certbot.scm (certbot-nginx-server-configurations): Likewise.
* gnu/services/version-control.scm (%cgit-configuration-nginx): Likewise.
* gnu/services/web.scm (<nginx-server-configuration>,
emit-nginx-server-config): Likewise.
* gnu/tests/version-control.scm (%cgit-configuration-nginx,
%git-nginx-configuration): Likewise.
* gnu/tests/web.scm (%nginx-servers, %php-fpm-nginx-server-blocks): Likewise.

* doc/guix.texi: remove double occurence of generations.

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

* guix/scripts/offload.scm (check-machine-status): New procedure.
(guix-offload): Call it when the argument is "status".
* doc/guix.texi (Daemon Offload Setup): Document it.

* guix/scripts/system.scm (show-help): Add expression option.
(%options): Ditto.
(guix-system): Allow commands taking a file as an argument to use an
expression instead.
(process-action): Read operating-system from expression or file.
* doc/guix.texi (Invoking guix system): Introduce the expression option.

* doc/guix.texi (DNS Services): Fix knot-configuration.

* doc/guix.texi: Add missing ‘@*’ to copyright headers.

* gnu/services/web.scm (<php-fpm-configuration>,
  <php-fpm-process-manager-configuration>): New record types.
  (php-fpm-configuration?,
   php-fpm-process-manager-configuration?,
   php-fpm-service-type,
   nginx-php-location): New procedures.
* doc/guix.texi (Web-Services): Document php-fpm service.
* gnu/tests/web.scm: Add php-fpm system test.

Signed-off-by: Christopher Baines <mail@cbaines.net>

The nginx service can fail to start if the server names hash bucket size is
too small, which can happen on some systems, and when using QEMU, depending on
the CPU.

* gnu/services/web.scm (<nginx-configuration>): Add
  server-names-hash-bucket-size and server-names-hash-bucket-max-size.
  (default-nginx-config): Add support for the new hash bucket size parameters.
  (nginx-service, nginx-activation): Pass the new hash bucket size parameters
  through to the default-nginx-config procedure.
* doc/guix.texi (Web Services): Document the new hash bucket size parameters.

If nginx is configured with a ssl-certificate file, and ssl-certificate-key,
it will fail to start unless these exist. To avoid this happening, change the
default to #f.

* gnu/services/web.scm (<nginx-server-configuration>)
  [ssl-certificate,ssl-certificate-key]: Set the defaults to #f.
* gnu/tests/web.scm (%nginx-servers): Remove redundant
  nginx-server-configuration fields.
* doc/guix.texi (Web Services): Update examples and documentation.

* doc/guix.texi (Package Management): Fix typo.

* doc/guix.texi (Invoking guix import): Match the URI actually used by the
updater.

* doc/guix.texi (Proceeding with the Installation): Replace the old-style
‘grub-configuration’ with the newer ‘bootloader-configuration’ syntax.
* gnu/system/examples/vm-image.tmpl: Likewise.
* gnu/system/install.scm (installation-os): Likewise.
* gnu/tests.scm (%simple-os): Likewise.
* gnu/tests/install.scm (%minimal-os, %minimal-os-on-vda, %separate-home-os)
(%separate-store-os, %raid-root-os, %encrypted-root-os, %btrfs-root-os):
Likewise.
* gnu/tests/nfs.scm (%base-os): Likewise.
* tests/guix-system.scm (OS_BASE, make_user_config): Likewise.
* tests/system.scm (%os, %os-with-mapped-device): Likewise.

* doc/guix.texi (Substitute Server Authorization): Add note about
berlin.guixsd.org.  Nitpick.

* Makefile.am (release): Add the '.iso' suffix to image files.
* doc/guix.texi (USB Stick and DVD Installation): Adjust accordingly.