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-*- mode: org; coding: utf-8; -*-

#+TITLE: What's left to do?
#+STARTUP: content hidestars

Copyright © 2012, 2013, 2014 Ludovic Courtès <ludo@gnu.org>
Copyright © 2019 Mathieu Othacehe <m.othacehe@gmail.com>

  Copying and distribution of this file, with or without modification,
  are permitted in any medium without royalty provided the copyright
  notice and this notice are preserved.

* MAYBE Add a substituter that uses the GNUnet DHT or [[http://libswift.org][libswift]]

Would be neat if binaries could be pushed to and pulled from the GNUnet DHT or
rather libswift (since DHTs aren’t suited for large payloads).  Guix users
would sign their binaries, and define which binaries they trust.

Use UPnP and similar to traverse NAT, like ‘filegive’ does.

* user interface
** add guile-ncurses interface

* extend <package>
** add ‘recommends’ field

For instance, glibc, binutils, gcc, and ld-wrapper would recommend each other.
‘guix package -i’ could ask interactively (?), or allow users to follow all or
none of the recommendations.

** add a ‘user-environment-hook’

This should specify builder code to be run when building a user
environment with ‘guix-package’.  For instance, Texinfo’s hook would
create a new ‘dir’.

** extend ‘propagated-build-inputs’ with support for multiple outputs

#+BEGIN_SRC scheme
  (outputs '("out" "include"))
  (propagated-build-inputs
    `(((("i1" ,p1 "o1")
        ("i2" ,p2))
       => "include")
      ("i3" ,p3)))
#+END_SRC

* synchronize non-GNU package descriptions with the [[http://directory.fsf.org][FSD]]

Meta-data for GNU packages, including descriptions and synopses, can be
dumped from the FSD:
http://directory.fsf.org/wiki?title=GNU/Export&action=purge .
We could periodically synchronize with that.

* add a guildhall build system

The Guildhall is Guile’s packaging system.  It should be easy to add a
‘guildhall-build-system’ that does the right thing based on guildhall
recipes.

* union

Support sophisticated collision handling when building a union: honor
per-package priorities, etc.

* add GUIX_ALLOW_EXPENSIVE_TESTS

Tests that need to download stuff or otherwise take a long time would only be
run when that is defined.

* guix build utils
** MAYBE Change ‘ld-wrapper’ to add RPATH for libs passed by file name

** MAYBE Add equivalent to chrpath that uses [[https://gitorious.org/guile-dlhacks/guile-dlhacks/][guile-dlhacks]]

** MAYBE Add a hash-rewriting thing for deep dependency replacement without rebuild

See [[https://github.com/NixOS/nixpkgs/commit/d1662d715514e6ef9d3dc29f132f1b3d8e608a18][Shea Levy's `replace-dependency' in Nixpkgs]].

* distro
** port to GNU/Hurd, aka. ‘i686-gnu’

Problems include that current glibc releases do not build on GNU/Hurd.
In addition, there haven’t been stable releases of GNU Mach, MiG, and
Hurd, which would be a pre-condition.

* Installer
** Fix impossibility to restart on error after cow-store has been started
See https://lists.gnu.org/archive/html/guix-devel/2018-12/msg00161.html.
- Force reboot upon installer failure
- Unshare the installer process
- Run the installer process in a separate namespace
** Partitioning
*** Add RAID support
*** Add more partitioning schemes
The actual schemes are taken from Debian Installer but some are not
implemented yet: like "Separate partitions for /home /var and /tmp".
*** Replace wait page "Partition formating is in progress, please wait"
Create a new waiting page describing what's being done:

[              20%              ]
Running mkfs.ext4 on /dev/sda2 ...

[              40%              ]
Running mkfs.ext4 on /dev/sda3 ...
*** Add a confirmation page before formating/partitioning
** Desktop environments
*** Allow for no desktop environments
Propose to choose between "headless server" and "lightweight X11" in a new
page.
*** Add services selection feature
Add a services page to the configuration. Ask for services to be installed
like SSH, bluetooth, TLP in a checkbox list?
** Locale and keymap
*** Try to guess user locale and keymap by probing BIOS or HW (dmidecode)
** Timezone
*** Regroup everything in one single page
Under the form:
(UTC + 1) Europe/Paris
(UTC + 2) Africa/Cairo
...
** Display issue
*** Investigate display issue described here:
https://lists.gnu.org/archive/html/guix-devel/2019-01/msg00305.html
ate PO files upon "make dist"....This works around a non-determinstic build failure when doing "make distcheck -j4". * po/guix/Makevars (DIST_DEPENDS_ON_UPDATE_PO): New variable. * po/packages/Makevars (DIST_DEPENDS_ON_UPDATE_PO): New variable. Ludovic Courtès 2017-05-11nls: Update 'fr' translation.Ludovic Courtès 2017-05-04nls: Mark (guix discovery) as translatable....This is a followup to cd903ef7871170d3c4eced45418459d293ef48a7. * po/guix/POTFILES.in: Add 'guix/discovery.scm'. Ludovic Courtès 2017-05-03ui: Rename '_' to 'G_'....This avoids collisions with '_' when the latter is used as a 'match' pattern for instance. See <https://lists.gnu.org/archive/html/guix-devel/2017-04/msg00464.html>. * guix/ui.scm: Rename '_' to 'G_'. * po/guix/Makevars (XGETTEXT_OPTIONS): Adjust accordingly. * build-aux/compile-all.scm (warnings): Remove 'format'. * gnu/packages.scm, gnu/services.scm, gnu/services/shepherd.scm, gnu/system.scm, gnu/system/shadow.scm, guix/gnupg.scm, guix/http-client.scm, guix/import/cpan.scm, guix/import/elpa.scm, guix/import/pypi.scm, guix/nar.scm, guix/scripts.scm, guix/scripts/archive.scm, guix/scripts/authenticate.scm, guix/scripts/build.scm, guix/scripts/challenge.scm, guix/scripts/container.scm, guix/scripts/container/exec.scm, guix/scripts/copy.scm, guix/scripts/download.scm, guix/scripts/edit.scm, guix/scripts/environment.scm, guix/scripts/gc.scm, guix/scripts/graph.scm, guix/scripts/hash.scm, guix/scripts/import.scm, guix/scripts/import/cpan.scm, guix/scripts/import/cran.scm, guix/scripts/import/crate.scm, guix/scripts/import/elpa.scm, guix/scripts/import/gem.scm, guix/scripts/import/gnu.scm, guix/scripts/import/hackage.scm, guix/scripts/import/nix.scm, guix/scripts/import/pypi.scm, guix/scripts/import/stackage.scm, guix/scripts/lint.scm, guix/scripts/offload.scm, guix/scripts/pack.scm, guix/scripts/package.scm, guix/scripts/perform-download.scm, guix/scripts/publish.scm, guix/scripts/pull.scm, guix/scripts/refresh.scm, guix/scripts/size.scm, guix/scripts/substitute.scm, guix/scripts/system.scm, guix/ssh.scm, guix/upstream.scm: Use 'G_' instead of '_'. Most of this change was obtained by running: "sed -i -e's/(_ "/(G_ "/g' `find -name \*.scm`". Ludovic Courtès 2017-03-14nls: Mark (guix scripts pack) as translatable....* po/guix/POTFILES.in: Add 'guix/scripts/pack.scm'. Ludovic Courtès 2016-12-31Add 'guix copy'....* guix/scripts/copy.scm: New file. * guix/scripts/archive.scm (options->derivations+files): Export. * doc/guix.texi (Invoking guix copy): New node. * Makefile.am (MODULES) [HAVE_GUILE_SSH]: Add guix/scripts/copy.scm. * po/guix/POTFILES.in: Likewise. Ludovic Courtès 2016-12-19nls: Update 'fr' translation.Ludovic Courtès 2016-12-19nls: Update 'da' package translation.Ludovic Courtès 2016-12-19nls: Update 'pt_BR' translation.Ludovic Courtès 2016-12-19nls: Update 'da' translation.Ludovic Courtès 2016-12-05nls: Adjust to geeqie.scm removal....This is a followup to d1a5b20081c30da7503201df260cf20b8d0ba633. * po/packages/POTFILES.in: Remove gnu/packages/geeqie.scm. Ludovic Courtès 2016-12-04nls: Adjust to feh.scm renaming....This is a followup to d1a5b20081c30da7503201df260cf20b8d0ba633. * po/packages/POTFILES.in: Remove feh.scm and add image-viewers.scm. Ludovic Courtès 2016-12-04nls: Update 'da' package translation.Marius Bakke 2016-12-04nls: Update 'da' translation.Marius Bakke 2016-11-12nls: Update 'fr' translation.Ludovic Courtès 2016-11-06nls: Update 'fr' translation.Leo Famulari 2016-11-05nls: Update 'pt_BR' translation.Leo Famulari 2016-10-23nls: Update 'fr' translation.Leo Famulari 2016-10-06nls: Update 'de' translation.Ludovic Courtès 2016-08-14nls: Update 'pl' translation.Leo Famulari 2016-08-04nls: Adjust to zsh.scm renaming....* po/packages/POTFILES.in: Adjust to zsh.scm renaming in commit 7ccb874a299d6c6d86a3f1625a68c08ed20dbab6. Ludovic Courtès 2016-06-26nls: Update 'fr' translation.Ludovic Courtès 2016-05-26nls: Adjust to texlive.scm renaming....* po/packages/POTFILES.in: Adjust to texlive.scm rename in commit 8f9ac90182c022c69600f17ef9c1149e029bc301. Ludovic Courtès 2016-04-29nls: Add Simplified Chinese translation....* po/guix/zh_CN.po: New file. * po/guix/LINGUAS: Add 'zh_CN'. Ludovic Courtès 2016-03-28nls: Update 'da' translation.Ludovic Courtès 2016-03-03po: Drop removed file 'weechat.scm'....Fixes <http://bugs.gnu.org/22888>. weechat has been merged into 'irc.scm' in e288f007. * po/packages/POTFILES.in: Drop removed file 'weechat.scm'. Signed-off-by: Ludovic Courtès <ludo@gnu.org> Justus Winter 2016-01-29Rename (gnu services dmd) to (gnu services shepherd)....* 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. Alex Kost 2015-12-06nls: Add Polish translation.Ludovic Courtès 2015-12-01nls: Update 'de' translation.Ludovic Courtès 2015-11-01scripts: Add 'container' subcommand....* guix/scripts/container.scm: New file. * guix/scripts/container/exec.scm: New file. * po/guix/POTFILES.in: Add them. * Makefile.am (MODULES): Add them. * doc/guix.texi (Invoking guix container): New section. David Thompson 2015-11-01nls: Add Danish translation for packages.Ludovic Courtès 2015-11-01nls: Update 'da' translation.Ludovic Courtès 2015-10-27upstream: Add 'description' field to 'upstream-updater'....Suggested by Ludovic Courtès <ludo@gnu.org>. * guix/upstream.scm (<upstream-updater>): Use 'define-record-type*'. [description]: New field. (lookup-updater): Adjust accordingly. * guix/gnu-maintenance.scm (%gnu-updater): Likewise. * guix/import/cran.scm (%cran-updater): Likewise. * guix/import/elpa.scm (%elpa-updater): Likewise. * po/guix/POTFILES.in: Add guix/scripts/import/cran.scm and guix/gnu-maintenance.scm. Alex Kost 2015-10-21gnu-maintenance: Generalize, leading to (guix upstream)....* guix/gnu-maintenance.scm (<gnu-release>): Remove. (coalesce-releases): Move to upstream.scm. Rename to 'coalesce-sources'; adjust callers. (releases, latest-release): Return <upstream-source> objects instead of <gnu-release> objects. (latest-release*, non-emacs-gnu-package?): New procedures. (gnu-release-archive-types): Remove. (%gnu-updater): New variable. (package-update-path, download-tarball, package-update, update-package-source): Move to... * guix/upstream.scm: ... here. New file. * Makefile.am (MODULES): Add it. * po/guix/POTFILES.in: Replace gnu-maintenance.scm with upstream.scm. * guix/scripts/refresh.scm (%updaters): New variable. (update-package): Adjust to new 'package-update' interface. (guix-refresh): Adjust to new 'package-update-path'. Remove 'false-if-exception' around it. Ludovic Courtès 2015-10-20Add 'guix challenge'....* guix/scripts/challenge.scm, tests/challenge.scm: New files. * Makefile.am (MODULES): Add the former. (SCM_TESTS): Add the latter. * doc.am (SUBCOMMANDS): Add 'challenge'. * doc/guix.texi (Substitutes): Add xref to 'guix challenge'. (Invoking guix challenge): New node. * doc/contributing.texi (Submitting Patches): Add note about using 'guix challenge'. * po/guix/POTFILES.in: Add guix/scripts/challenge.scm. Ludovic Courtès 2015-10-10services: Introduce extensible services....This patch rewrites GuixSD services to make them extensible. * gnu-system.am (GNU_SYSTEM_MODULES): Add gnu/services/dbus.scm. * gnu/services.scm (<service>): Replace with new record type. (<service-extension>, <service-type>): New record types. (write-service-type, compute-boot-script, second-argument): New procedures. (%boot-service, boot-service-type): New variables. (file-union, directory-union, modprobe-wrapper, activation-service->script, activation-script, gexps->activation-gexp): New procedures. (activation-service-type, %activation-service): New variables. (etc-directory, files->etc-directory, etc-service): New procedures. (etc-service-type, setuid-program-service, firmware-service-type): New variables. (firmware->activation-gexp): New procedure. (&service-error, &missing-target-service-error, &ambiguous-target-service-error): New condition types. (service-back-edges, fold-services): New procedures. * gnu/services/avahi.scm (<avahi-configuration>): New record type. (configuration-file): Replace keyword parameters with a single 'config' parameter. (%avahi-accounts, %avahi-activation, avahi-service-type): New variables. (avahi-dmd-service): New procedure. (avahi-service): Rewrite using 'service' and 'avahi-configuration'. * gnu/services/base.scm (%root-file-system-dmd-service, root-file-system-service-type): New variables. (root-file-system-service): Use them. (file-system->dmd-service-name): New procedure. (file-system-service-type): New variable. (file-system-service): Use it. Replace keyword parameters with a single 'file-system' object. (user-unmount-service-type): New variable. (user-unmount-service): Use it. (user-processes-service-type): New variable. (user-processes-service): Use it. (host-name-service-type): New variable. (host-name-service): Use it. (console-keymap-service-type): New variable. (console-keymap-service): Use it. (console-font-service-type): New variable. (console-font-service): Use it. (mingetty-pam-service, mingetty-dmd-service): New procedures. (mingetty-service-type): New variable. (mingetty-service): Use it. (nscd-dmd-service): New procedure. (nscd-activation, nscd-service-type): New variables. (nscd-service): Use the latter. (syslog-service-type): New variable. (syslog-service): Use it. (<guix-configuration>): New record type. (%default-guix-configuration): New variable. (guix-dmd-service, guix-accounts, guix-activation): New procedures. (guix-service-type): New variable. (guix-service): Replace list of keyword parameters with a single 'config' parameter. Rewrite using 'service'. (<udev-configuration>): New record type. (udev-dmd-service): New procedure. (udev-service-type): New variable. (udev-service): Use it. (device-mapping-service-type): New variable. (device-mapping-service): Use it. (swap-service-type): New variable. (swap-service): Use it. * gnu/services/databases.scm (<postgresql-configuration>): New record type. (%postgresql-accounts, postgresql-activation): New variables. (postgresql-dmd-service): New procedure. (postgresql-service): Rewrite using 'service' and 'postgresql-configuration'. * gnu/services/dbus.scm: New file. * gnu/services/desktop.scm (dbus-configuration-directory, dbus-service): Remove. (wrapped-dbus-service): New procedure. (<upower-configuration>): New record type. (upower-configuration-file): Replace keyword parameters with single <upower-configuration> parameter. (%upower-accounts, %upower-activation): New variables. (upower-dbus-service, upower-dmd-service): New procedures. (upower-service-type): New variable. (upower-service): Rewrite using 'service' and 'upower-configuration'. (%colord-activation, %colord-accounts): New variables. (colord-dmd-service): New procedure. (colord-service-type): New variable. (colord-service): Rewrite using 'service'. (<geoclue-configuration>): New record type. (geoclue-configuration-file): Replace keyword parameters with a single 'config' parameter. (geoclue-dbus-service, geoclue-dmd-service): New procedures. (%geoclue-accounts, geoclue-service-type): New variables. (geoclue-service): Rewrite using 'service' and 'geoclue-configuration'. (%polkit-accounts, %polkit-pam-services, polkit-service-type): New variables. (polkit-dmd-service): New procedure. (polkit-service): Rewrite using 'service'. (<elogind-configuration>)[elogind]: New field. (elogind-dmd-service): New procedure. (elogind-service-type): New variable. (elogind-service): Rewrite using 'service'. (%desktop-services): Remove argument to 'dbus-service'. Remove 'map' over %BASE-SERVICES. * gnu/services/dmd.scm (dmd-boot-gexp): New procedure. (dmd-root-service-type, %dmd-root-service): New variables. (dmd-service-type): New macro. (<dmd-service>): New record type. * gnu/services/lirc.scm (<lirc-configuration>): New record type. (%lirc-activation): New variable. (lirc-dmd-service): New procedure. (lirc-service-type): New variable. (lirc-service): Rewrite using 'service' and 'lirc-configuration'. * gnu/services/networking.scm (<static-networking>): New record type. (static-networking-service-type): New variable. (static-networking-service): Rewrite using 'service' and 'static-networking'. (dhcp-client-service-type): New variable. (dhcp-client-service): Rewrite using 'service'. (<ntp-configuration>): New record type. (ntp-dmd-service): New procedure. (ntp-service-type): New variable. (ntp-service): New procedure. (%tor-accounts, tor-service-type): New variable. (tor-dmd-service): New procedure. (tor-service): Rewrite using 'service'. (<bitlbee-configuration>): New record type. (bitlbee-dmd-service): New procedure. (%bitlbee-accounts, %bitlbee-activation, bitlbee-service-type): New variables. (bitlbee-service): Rewrite using 'service'. (%wicd-activation): New variable. (wicd-dmd-service): New procedure. (wicd-service-type): New variable. (wicd-service): Rewrite using 'service'. * gnu/services/ssh.scm (<lsh-configuration>): New record type. (activation): Rename to... (lsh-initialization): ... this. (lsh-activation, lsh-dmd-service, lsh-pam-services): New procedures. (lsh-service-type): New variable. (lsh-service): Rewrite using 'service' and 'lsh-configuration'. * gnu/services/web.scm (<nginx-configuration>): New record type. (%nginx-accounts): New variable. (nginx-activation, nginx-dmd-service): New procedures. (nginx-service-type): New variable. (nginx-service): Rewrite using 'service' and 'nginx-configuration'. * gnu/services/xorg.scm (<slim-configuration>): New record type. (slim-pam-service, slim-dmd-service): New procedures. (slim-service-type): New variable. (slim-service): Rewrite using 'service' and 'slim-configuration'. * gnu/system.scm (file-union): Remove. (other-file-system-services): Adjust to new 'file-system-service' signature. (essential-services): Add #:container? parameter. Add %DMD-ROOT-SERVICE, %ACTIVATION-SERVICE, and calls to 'pam-root-service', 'account-service', 'operating-system-etc-service', and a SETUID-PROGRAM-SERVICE instance. (operating-system-services): Pass #:container? to 'essential-services. (etc-directory): Remove. (operating-system-etc-service): New procedure. Rewrite as a call to 'etc-service'. (operating-system-accounts): Change to not return accounts required by services. (operating-system-etc-directory): Rewrite as a call to 'fold-services' and 'etc-directory'. (user-group->gexp, user-account->gexp, modprobe-wrapper): Remove. (operating-system-activation-script): Rewrite as a call to 'fold-services' and 'activation-service->script'. (operating-system-boot-script): Likewise. (operating-system-derivation): Add call to 'lower-object'. (emacs-site-file, emacs-site-directory, shells-file): Change to use 'computed-file' and 'scheme-file' instead of the monadic procedures. * gnu/system/install.scm (cow-store-service-type): New variable. (cow-store-service): Rewrite using 'service'. (/etc/configuration-files): New procedure. (configuration-template-service-type, %configuration-template-service): New variables. (configuration-template-service): Remove. (installation-services): Adjust accordingly. Adjust argument to 'guix-service'. * gnu/system/linux.scm (/etc-entry, pam-root-service): New procedures. (pam-root-service-type): New variable. * gnu/system/shadow.scm (user-group->gexp, user-account->gexp, account-activation, etc-skel, account-service): New procedures. (account-service-type): New variable. * tests/services.scm: New file. * doc/guix.texi (Base Services, Desktop Services): Adjust accordingly. (Defining Services): Rewrite. * doc/images/service-graph.dot: New file. * doc.am (DOT_FILES): Add it. * po/guix/POTFILES.in: Add gnu/services.scm. Ludovic Courtès 2015-09-18Add (guix scripts)....* guix/ui.scm: Add missing copyright lines. (args-fold*, environment-build-options, %default-argument-handler, parse-command-line): Move to ... * guix/scripts.scm: ...here. New file. * guix/scripts/archive.scm: Use it. * guix/scripts/build.scm: Likewise. * guix/scripts/download.scm: Likewise. * guix/scripts/edit.scm: Likewise. * guix/scripts/environment.scm: Likewise. * guix/scripts/gc.scm: Likewise. * guix/scripts/graph.scm: Likewise. * guix/scripts/hash.scm: Likewise. * guix/scripts/import/cpan.scm: Likewise. * guix/scripts/import/cran.scm: Likewise. * guix/scripts/import/elpa.scm: Likewise. * guix/scripts/import/gem.scm: Likewise. * guix/scripts/import/gnu.scm: Likewise. * guix/scripts/import/hackage.scm: Likewise. * guix/scripts/import/nix.scm: Likewise. * guix/scripts/import/pypi.scm: Likewise. * guix/scripts/lint.scm: Likewise. * guix/scripts/package.scm: Likewise. * guix/scripts/publish.scm: Likewise. * guix/scripts/pull.scm: Likewise. * guix/scripts/refresh.scm: Likewise. * guix/scripts/size.scm: Likewise. * guix/scripts/system.scm: Likewise. * tests/ui.scm (with-environment-variable, "parse-command-line", "parse-command-line and --no options"): Move to ... * tests/scripts.scm: ...here. New file. * Makefile.am (MODULES): Add guix/scripts.scm. (SCM_TESTS): Add tests/scripts.scm. * po/guix/POTFILES.in: Add guix/scripts.scm. Alex Kost 2015-08-27Add graph.scm to 'POTFILES'....* po/guix/POTFILES.in: Add guix/scripts/graph.scm. Ludovic Courtès 2015-07-19nls: Add package files for translation....* po/packages/POTFILES.in: Add a bunch of files. Ludovic Courtès 2015-07-08import: Add 'elpa' importer....* guix/import/elpa.scm: New file. * guix/scripts/import.scm: Add "elpa" to 'importers'. * guix/scripts/import/elpa.scm: New file. * Makefile.am (MODULES): Add 'guix/import/elpa.scm' and 'guix/scripts/import/elpa.scm'. (SCM_TESTS): Add 'tests/elpa.scm'. * doc/guix.texi (Invoking guix import): Document it. * tests/elpa.scm: New file. * po/guix/POTFILES.in: Add 'guix/scripts/import/elpa.scm'. Federico Beffa 2015-06-21nls: Update 'eo' translation.Ludovic Courtès 2015-06-18Add 'guix size'....* guix/scripts/size.scm: New file. * Makefile.am (MODULES): Add it. (SCM_TESTS): Add tests/size.scm. * doc.am (SUBCOMMANDS): Add 'size'. * po/guix/POTFILES.in: Add guix/scripts/size.scm. * tests/size.scm: New file. * doc/guix.texi (Packages with Multiple Outputs): Add xref to "Invoking guix size". (Invoking guix size): New node. (Invoking guix gc): Add index for "closure" and xref to the above. * doc/contributing.texi (Submitting Patches): Use @enumerate for the check list. Add item about 'guix size'. Ludovic Courtès