doc: Add an example to the documentation of the udev-service.

* doc/guix.texi (Base Services): Update 'udev-service' documentation.

build: Add the Go build system.

* guix/build-system/go.scm,
guix/build/go-build-system.scm: New files.
* Makefile.am (MODULES): Add new files.
* doc/guix.texi (Build Systems): Document the go-build-system.

doc: Give an example with a FAT UUID.

* gnu/system/examples/lightweight-desktop.tmpl <file-systems>: Add a
UUID for the /boot/efi partition.
* doc/guix.texi (Using the Configuration System): Mention it.

pull: Add GUIX_PULL_URL environment variable.

* guix/scripts/pull.scm (%repository-url): Add GUIX_PULL_URL environment
  variable.
* doc/guix.texi (Invoking guix pull): Mention GUIX_PULL_URL.

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

Merge branch 'master' into staging

services: Add MongoDB.

* gnu/services/databases.scm (%default-mongodb-configuration-file,
  %mongodb-accounts, mongodb-service-type): New variables.
  (<mongodb-configuration>): New record type.
  (mongodb-activation, mongodb-shepherd-service): New procedures.
* gnu/tests/databases.scm (%test-mongodb): New variable.
* doc/guix.texi (Database Services): Add MongoDB documentation.

Merge branch 'master' into staging

guix: ant-build-system: Add #:test-include and #:test-exclude arguments.

* guix/build-system/ant.scm: Add #:test-include and #:test-exclude
arguments.
* guix/build/ant-build-system.scm: Generate test list from arguments.
* doc/guix.texi (Build Systems): Document it.

guix: ant-build-system: Add main-class support.

* guix/build-system/ant.scm: New #:main-class argument
* guix/build/ant-build-system.scm: Generate a manifest file with
additional properties.
* doc/guix.texi (Build Systems): Document it.

gnu: services: Add cgit.

* gnu/services/version-control.scm
(<cgit-configuration-file>, <cgit-configuration>): New record types.
(cgit-configuration-robots-string, cgit-activation,
cgit-configuration-nginx-config): New procedures.
(%cgit-configuration-nginx, cgit-service-type): New variables.
* gnu/tests/version-control.scm: New file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
* doc/guix.texi (Version Control): Document the cgit service.

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

doc: Explain why synopses/descriptions must be literal strings.

Suggested by Dave Love <fx@gnu.org>.

* doc/guix.texi (Synopses and Descriptions): Recommend literal strings.

doc: Fix rottlog configuration sample code.

* doc/guix.texi (Log Rotation): Correct code for the default mcron-service.

services: web: Add try-files for the nginx-service-type.

* gnu/services/web.scm (<nginx-server-configuration>): Add
  nginx-server-configuration-try-files.
(emit-nginx-server-config): Use it.
* doc/guix.texi (Web Services): Document it.

import: Add JSON importer.

* doc/guix.texi (Invoking guix import): Document it.
* guix/scripts/import/json.scm: New file.
* Makefile.am (MODULES): Add it.
* guix/scripts/import.scm (importers): Add json importer.

cuirass: Add gnu-system build spec.

* build-aux/hydra/gnu-system.scm (hydra-jobs): Support subset "hello".
* build-aux/cuirass/gnu-system.scm: New file.
* doc/guix.texi (Continuous Integration): Update example spec.

Merge branch 'master' into staging

services: cuirass: Add host option.

* gnu/services/cuirass.scm (<cuirass-configuration>): Add host option.
(cuirass-shepherd-service): Pass host option.
* doc/guix.texi (Continuous Integration): Document it.

Merge branch 'master' into staging

gnu: Add rsync service.

* doc/guix.texi (Networking Services): Add rsync service documentation.
* gnu/services/rsync.scm (<rsync-configuration>): New file.
* gnu/tests/rsync.scm: New file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add new files.

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

services: network-manager: Add support for VPN plug-ins.

* gnu/services.scm (directory-union): Export.
* gnu/services/networking.scm (<network-manager-configuration>)[vpn-plugins]:
New field.
(vpn-plugin-directory, network-manager-environment): New procedure.
(network-manager-shepherd-service): Pass #:environment-variables to
'make-forkexec-constructor'.
(network-manager-service-type): Add SESSION-ENVIRONMENT-SERVICE-TYPE
extension.
* doc/guix.texi (Networking Services): Document it.