* 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.

* gnu/system/install.scm (installation-os): Use (title 'label) for the
root file system.

* doc.am (HELP2MANFLAGS): New variable.
(gen_man): Use it.

* gnu/packages/games.scm (pinball): New variable.
* gnu/packages/patches/pinball-const-fix.patch,
  gnu/packages/patches/pinball-cstddef.patch,
  gnu/packages/patches/pinball-missing-separators.patch,
  gnu/packages/patches/pinball-src-deps.patch,
  gnu/packages/patches/pinball-system-ltdl.patch: New patches.
* gnu-system.am (dist_patch_DATA): Add them.

* gnu/packages/python.scm (python-apsw): Update to 3.9.2-r1.
[source]: Change to pypi uri syntax.

* gnu/packages/freedesktop.scm (wayland)[native-inputs]: Add graphviz.

* gnu/packages/python.scm (python-pillow): Update to 3.1.0.
[source]: Change to pypi uri syntax.

* gnu/packages/game-development.scm (aseprite): New variable.

* gnu/packages/game-development.scm (allegro-4): New variable.

* guix/licenses.scm (giftware): New variable.

* gnu/packages/video.scm (obs): Upgrade to 0.13.0.

* gnu/packages/tcl.scm (perl-tk): Update to 804.033.
[source]: Remove patch.
* gnu/packages/patches/perl-tk-x11-discover.patch: Remove file.
* gnu-system.am (dist_patch_DATA): Remove patch.

* gnu/packages/weechat.scm (weechat): Update to 1.4.

* gnu/packages/pumpio.scm (pumpa): Update to 0.9.2.
[source]: Add 'file-name' field.

This reduces compilation time since scripts are not compiled twice.
When building with 'make -j4' from a clean repository on an Intel
i5-2540M, compilation time gets from:

real	4m48.708s
user	17m29.892s
sys	0m9.596s

down to:

real	2m23.399s
user	6m48.604s
sys	0m6.420s

* doc.am (subcommand-manual-target): Delete function.
(SUBCOMMANDS): Delete variable.
(sub_command_mans, gen_man): New variables.
(dist_man1_MANS): Add $(sub_commands_mans).
(doc/guix-%.1): New target for sub-commands man pages.  It ensures that
man pages are built only after compiling Guile objects.
(doc/guix-daemon.1): Use $(gen_man).  Build only if BUILD_DAEMON.
(doc/guix.1): Use $(gen_man).  Add $(sub_command_mans) prerequisite.

Co-authored-by: Mathieu Lirzin <mthl@gnu.org>

* build-aux/hydra/demo-os.scm (operating-system)[issue]: Point to
  shepherd instead of dmd.
* ROADMAP: Likewise.
* gnu/build/install.scm (directives): Adjust comment.

* doc/images/dmd-graph.dot: Rename to...
* doc/images/shepherd-graph.dot: ... this.
* doc.am (DOT_FILES): Adjust accordingly.
* guix/scripts/system.scm (dmd-service-node-label)
  (dmd-service-node-type, export-dmd-graph): Rename to...
  (shepherd-service-node-label, shepherd-service-node-type)
  (export-shepherd-graph): ... this.
  (show-help, process-action, process-command): Rename 'dmd-graph' to
  'shepherd-graph'.
* emacs/guix-command.el (guix-command-additional-execute-arguments)
  (guix-command-special-executors): Likewise.
* doc/guix.texi: Likewise.
* doc/emacs.texi (Emacs Popup Interface): Likewise.

* gnu/services/shepherd.scm (dmd-root-service-type, %dmd-root-service)
  (dmd-service-type, <dmd-service>, dmd-service, dmd-service?)
  (make-dmd-service, dmd-service-documentation, dmd-service-provision)
  (dmd-service-requirement, dmd-service-respawn, dmd-service-start)
  (dmd-service-stop, dmd-service-auto-start?, dmd-service-modules)
  (dmd-service-imported-modules, dmd-service-file-name, dmd-service-file)
  (dmd-service-back-edges): Rename to...
  (shepherd-root-service-type, %shepherd-root-service, shepherd-service-type)
  (<shepherd-service>, shepherd-service, shepherd-service?)
  (make-shepherd-service, shepherd-service-documentation)
  (shepherd-service-provision, shepherd-service-requirement)
  (shepherd-service-respawn, shepherd-service-start)
  (shepherd-service-stop, shepherd-service-auto-start?)
  (shepherd-service-modules, shepherd-service-imported-modules)
  (shepherd-service-file-name, shepherd-service-file)
  (shepherd-service-back-edges): ...this
* gnu/services.scm: Adjust comments.
* gnu/services/avahi.scm (avahi-dmd-service): Rename to...
  (avahi-shepherd-service): ... this.
* gnu/services/base.scm (%root-file-system-dmd-service)
  (file-system->dmd-service-name, mapped-device->dmd-service-name)
  (dependency->dmd-service-name, file-system-dmd-service)
  (mingetty-dmd-service, nscd-dmd-service, guix-dmd-service)
  (guix-publish-dmd-service, udev-dmd-service, gpm-dmd-service): Rename to...
  (%root-file-system-shepherd-service)
  (file-system->shepherd-service-name, mapped-device->shepherd-service-name)
  (dependency->shepherd-service-name, file-system-shepherd-service)
  (mingetty-shepherd-service, nscd-shepherd-service, guix-shepherd-service)
  (guix-publish-shepherd-service, udev-shepherd-service)
  (gpm-shepherd-service): ... this.
* gnu/services/databases.scm (postgresql-dmd-service): Rename to...
  (postgresql-shepherd-service): ... this.
* gnu/services/desktop.scm (upower-dmd-service, elogind-dmd-service):
  Rename to...
  (upower-shepherd-service, elogind-shepherd-service): ... this.
* gnu/services/dbus.scm (dbus-dmd-service): Rename to...
  (dbus-shepherd-service): ... this.
* gnu/services/lirc.scm (lirc-dmd-service): Rename to...
  (lirc-shepherd-service): ... this.
* gnu/services/mail.scm (dovecot-dmd-service): Rename to...
  (dovecot-shepherd-service): ... this.
* gnu/services/networking.scm (ntp-dmd-service, tor-dmd-service)
  (bitlbee-dmd-service, wicd-dmd-service, network-manager-dmd-service): Rename to...
  (dbus-shepherd-service): ... this.
* gnu/services/ssh.scm (lsh-dmd-service): Rename to...
  (lsh-shepherd-service): ... this.
* gnu/services/web.scm (nginx-dmd-service): Rename to...
  (nginx-shepherd-service): ... this.
* gnu/services/xorg.scm (slim-dmd-service): Rename to...
  (slim-shepherd-service): ... this.
* gnu/system.scm (essential-services): Use '%shepherd-root-service'.
* gnu/system/install.scm (cow-store-service-type): Adjust accordingly.
* guix/scripts/system.scm (dmd-service-node-label, dmd-service-node-type)
  (export-dmd-graph): Likewise.
* tests/guix-system.sh: Likewise.
* tests/services.scm ("dmd-service-back-edges"): Rename to...
  ("shepherd-service-back-edges"): Adjust accordingly.
* doc/guix.texi: Likewise.
* doc/images/service-graph.dot: Use 'shepherd' service name.

* gnu/services/xorg.scm (slim-configuration-dmd): Rename to...
  (slim-configuration-shepherd): ... this.
  (slim-shepherd-service): Adjust accordingly.
  (slim-service): Take 'shepherd' keyword argument.

* gnu/services/shepherd.scm (dmd-configuration-file): Rename to...
  (shepherd-configuration-file): ... this.  Use "shepherd.conf" name.
  (dmd-boot-gexp): Use it.

* gnu/services/dmd.scm: Rename to...
* gnu/services/shepherd.scm: ... this.
* gnu/system.scm: Use it.
* gnu/system/install.scm: Likewise.
* gnu/services/xorg.scm: Likewise.
* gnu/services/web.scm: Likewise.
* gnu/services/ssh.scm: Likewise.
* gnu/services/networking.scm: Likewise.
* gnu/services/mail.scm: Likewise.
* gnu/services/lirc.scm: Likewise.
* gnu/services/desktop.scm: Likewise.
* gnu/services/dbus.scm: Likewise.
* gnu/services/databases.scm: Likewise.
* gnu/services/base.scm: Likewise.
* gnu/services/avahi.scm: Likewise.
* guix/scripts/system.scm: Likewise.
* tests/services.scm: Likewise.
* tests/guix-system.sh: Likewise.
* doc/guix.texi (Shepherd Services): Adjust accordingly.
* gnu-system.am (GNU_SYSTEM_MODULES): Likewise.
* po/guix/POTFILES.in: Likewise.

* doc/guix.texi: Use 'shepherd'/'herd' instead of 'dmd'/'deco'.  Fix
  info references.

* gnu/services/base.scm (%do-not-kill-file): Rename to
  "/etc/shepherd/do-not-kill".
* gnu/build/linux-boot.scm (mount-root-file-system): Rename
  "/root/etc/dmd" to "/root/etc/shepherd".

* gnu/services/dmd.scm (dmd-boot-gexp): Use binary from 'shepherd' package.
  (dmd-root-service-type): Use 'shepherd' package.
  (%default-modules): Use (shepherd service) module.
* gnu/services/base.scm (%root-file-system-dmd-service): Use
  'stop-logging' procedure to close shepherd log.

* gnu/packages/freedesktop.scm (elogind)[inputs]: Replace 'dmd' with
  'shepherd'.

* doc/guix.texi (Application Setup)[Emacs Packages]: New subsection.

* gnu/packages/emacs.scm (emacs)[inputs]: Add 'guix-src' input.
  [arguments]: Add 'install-site-start' phase.

Co-authored-by: Alex Kost <alezost@gmail.com>

* gnu/packages/package-management.scm (guix-devel): Update to c3f29bc9.

* gnu/packages/gnome.scm (gtk-vnc): New variable.

Co-authored-by: 宋文武 <iyzsong@gmail.com>

* gnu/packages/video.scm (ffmpeg)[inputs]: Add libvdpau, libx11, mesa.
[arguments]: Add configure-flags '--enable-opengl' '--enable-x11grab'.

* .gitignore: Sort lines.  Use globbing for "*.{eps,pdf,png,tar.xz}"
files.

* daemon.am (nix/libstore/schema.sql.hh, etc/guix-daemon.service)
(etc/guix-daemon.conf): Use $(AM_V_GEN).
* doc.am (doc/os-config-%.texi, .png.eps): Likewise.
* Makefile.am (guix-binary.%.tar.xz, gen-ChangeLog, gen-AUTHORS):
Likewise.
(assert-binaries-available, assert-final-inputs-self-contained)
(assert-no-store-file-names, sync-descriptions): Use $(AM_V_at).

* emacs.am [HAVE_EMACS] (dist_lisp_DATA): Move $(AUTOLOADS) to ...
[HAVE_EMACS] (nodist_lisp_DATA): ... here.
(CLEANFILES) [HAVE_EMACS]: Add $(AUTOLOADS).

* Makefile.am (AM_V_HELP2MAN, AM_V_HELP2MAN_, AM_V_HELP2MAN_0): New
variables.
* doc.am (subcommand-manual-target, doc/guix.1, doc/guix-daemon.1): Use
$(AM_V_HELP2MAN).

* Makefile.am (AM_V_EMACS, AM_V_EMACS_, AM_V_EMACS_0): New variables.
* emacs.am [HAVE_EMACS] ($(AUTOLOADS)): Use $(AM_V_EMACS).

* Makefile.am (AM_V_DOT, AM_V_DOT_, AM_V_DOT_0): New variables.
* doc.am (.dot.png, .dot.pdf, .dot.eps): Use $(AM_V_DOT).

* Makefile.am (AM_V_DL, AM_V_DL_, AM_V_DL_0): New variables.
* gnu-system.am (gnu/packages/bootstrap/x86_64-linux/guile-2.0.9.tar.xz)
(gnu/packages/bootstrap/i686-linux/guile-2.0.9.tar.xz)
(gnu/packages/bootstrap/armhf-linux/guile-2.0.11.tar.xz)
(gnu/packages/bootstrap/mips64el-linux/guile-2.0.9.tar.xz): Use $(AM_V_DL).
* build-aux/download.scm: Print a line break between target and origin.

* 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/scripts/lint.scm (check-patch-file-names): Improve clarity by
reversing the logic.

* guix/scripts/lint.scm (check-patch-file-names): Don't check if patches
start with the package full name since matching the package name (which
is a prefix of the full name) is sufficient.