* gnu/services.scm (system-derivation): New procedure.
(system-service-type): New variable.
(boot-script-entry): New procedure.
(boot-service-type): Extend SYSTEM-SERVICE-TYPE.
(etc-entry): New procedure.
(etc-service-type): Extend SYSTEM-SERVICE-TYPE.
(fold-services): Change default #:target-type to SYSTEM-SERVICE-TYPE.
* gnu/system.scm (operating-system-directory-base-entries): New procedure.
(essential-services): Use it. Add an instance of
SYSTEM-SERVICE-TYPE.
(operating-system-boot-script): Pass #:target-type to 'fold-services'.
(operating-system-derivation): Rewrite in terms of 'fold-services'.
* gnu/system/linux-container.scm (system-container): Remove.
(container-script): Use 'operating-system-derivation'.
* guix/scripts/system.scm (export-extension-graph): Replace
BOOT-SERVICE-TYPE by SYSTEM-SERVICE-TYPE.
* doc/images/service-graph.dot: Add 'system' node and edges.
* doc/guix.texi (Service Composition): Mention SYSTEM-SERVICE-TYPE.
(Service Reference): Document it. Update 'fold-services'
documentation.
* gnu/services.scm (compute-boot-script): Add first placeholder
parameter.
(boot-service-type): Change 'compose' to APPEND, and 'extend' to
COMPUTE-BOOT-SCRIPT.
* guix/scripts/environment.scm (%default-options): Remove 'exec'
association.
(guix-environment): If the user didn't specify a command, use the
default shell, or use /bin/sh when a container is requested.
* emacs/guix-build-log.el (guix-build-log-minor-mode-activate): New variable.
(guix-build-log-minor-mode-activate-maybe): New function.
* emacs/guix-init.el: Add it to 'shell-mode-hook'.
* doc/emacs.texi (Emacs Build Log): Mention it.
* gnu/system/examples/desktop.tmpl: Add 'mapped-devices' field.
Use it in 'file-systems'.
* doc/guix.texi (System Installation): Suggest encrypted partitions.
Give an example of a command sequence.
* gnu/services/desktop.scm (<udisks-configuration>): New record type.
(udisks-service-type): New variable.
(udisks-service): New procedure.
(%desktop-services): Use it.
* doc/guix.texi (Desktop Services): Document it.
* gnu/packages/polkit.scm (polkit)[source]: Adjust snippet so that rules
and actions are looked for under /etc/polkit-1.
* gnu/services/desktop.scm (<polkit-configuration>): New record type.
(polkit-directory, polkit-etc-files, polkit-setuid-programs): New
procedures.
(polkit-service-type)[compose, extend]: New fields.
(polkit-service): Refine docstring.
(colord-service-type): Extend POLKIT-SERVICE-TYPE.
(elogind-configuration-file): Extend POLKIT-SERVICE-TYPE.
* doc/guix.texi (Desktop Services): Update 'polkit-service'
documentation.
* emacs/guix-build-log.el (guix-build-log-mode-hook): Remove
'compilation-shell-minor-mode' as it is slow on big buffers, and
'view-mode' as it rebinds too many keys.
(guix-build-log-mode-map): Add "c" and "v" key bindings for the
removed minor modes.
* emacs/guix-build-log.el (guix-build-log-mode-map): Move keys to ...
(guix-build-log-common-map): ...here. New variable.
(guix-build-log-minor-mode-map): New variable.
(guix-build-log-minor-mode): Use it.
* doc/emacs.texi (Emacs Build Log): Document it.
Ludovic Courtès