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

#+TITLE: Hacking GNU Guix and Its Incredible Distro

Copyright © 2012, 2013, 2014, 2016, 2017, 2019 Ludovic Courtès <ludo@gnu.org>
Copyright © 2015, 2017 Mathieu Lirzin <mthl@gnu.org>
Copyright © 2017 Leo Famulari <leo@famulari.name>
Copyright © 2017 Arun Isaac <arunisaac@systemreboot.net>

  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.

* Contributing

See the manual for useful hacking information, either by running

  info -f doc/guix.info "Contributing"

or by checking the [[https://guix.gnu.org/manual/devel/en/html_node/Contributing.html][web copy of the manual]].
/42683>. * gnu/installer.scm (installer-program): Add lvm2-static to the inputs. * gnu/installer/parted.scm (remove-logical-devices): New procedure, (init-parted): call it. Mathieu Othacehe 2020-07-26installer: Add NTFS support....This adds support for creating and editing NTFS partitions. It is however not possible yet to create root NTFS partitions, as overlaying on top of a fuse partition does not seem supported. * gnu/installer.scm (installer-program): Add "ntfs-3g" to the inputs. * gnu/installer/parted.scm (user-fs-type-name, user-fs-type->mount-type, partition-filesystem-user-type, create-ntfs-file-system, format-user-partitions): Add NTFS support. * gnu/installer/newt/partition.scm (run-fs-type-page): Add NTFS support. Mathieu Othacehe 2020-06-16installer: final: Remove restart-service procedure....* gnu/installer/final.scm (umount-cow-store): Remove "restart-service" that is now provided by (gnu services herd). Mathieu Othacehe 2020-06-14installer: final: Make sure 'bold' font files are loaded....* gnu/installer/newt/final.scm (run-install-shell): Force kmscon to open 'bold' font files, before the cow-store overlay is mounted. Mathieu Othacehe 2020-06-13install: final: Add some logging....* gnu/installer/final.scm (umount-cow-store): Add some logging. Mathieu Othacehe 2020-06-09installer: final: Dump "guix system init" command output when testing....When debugging the installation tests, it can be very handy to be able to read "guix system init" command output. * gnu/installer/final.scm (install-system): Dump installation command output to the console when running the installation tests. Mathieu Othacehe 2020-06-09installer: final: Remove left-over pk call....* gnu/installer/final.scm (kill-cow-users): Remove pk call. Mathieu Othacehe 2020-06-09Revert "installer: utils: Dump command output to syslog when testing."...This reverts commit f73ed5579157a074093bae7a2ffb59a85412be0d. This was pushed by error, as this is not reviewed yet. Mathieu Othacehe 2020-06-09installer: utils: Dump command output to syslog when testing....When debugging the installation tests, it can be very handy to be able to read "run-command" output, for instance when executing "guix system init". Introduce a new "invoke-with-log" procedure that is able to log a command standard and error outputs to the syslog. Use it, only when running the installation tests, to dump "run-command" output. * gnu/installer/utils.scm (open-pipe-with-stderr, invoke-with-log): New procedures, (invoke-log-port): new variable, (run-command): move to the end of the file and use invoke-with-log when running the installation tests. Mathieu Othacehe 2020-06-05installer: final: Add some extra logging....* gnu/installer/final.scm (kill-cow-users): Log the killed process name, (umount-cow-store): inform that we are umounting the cow-store. Mathieu Othacehe 2020-04-19installer: connman: Fix Wifi connection....Issue reported by SergioBG here: https://lists.gnu.org/archive/html/bug-guix/2020-04/msg00432.html. Due to default buffering mode, the installer was reading from the pipe without having actually written a command before. * gnu/installer/connman.scm (connman-connect-with-auth): Set pipe buffering mode to 'line. Mathieu Othacehe 2020-04-10installer: tests: Don't install to a CD/DVD....* gnu/installer/tests.scm (choose-partitioning): Use 'find' to select the disk. Ludovic Courtès 2020-04-10gnu: installer: Fix issue with "Esperanto" locale....According to glibc manual, locale are under the following form: language[_territory[.codeset]][@modifier] The esperanto locale "epo" does not have a territory. Modify run-command to take this into account. Reported by Alex Sassmannshausen here: https://lists.gnu.org/archive/html/guix-devel/2020-04/msg00192.html. * gnu/installer/utils.scm (run-command): Handle locale without territory such as "epo". Mathieu Othacehe 2020-04-09installer: Include empty variant in keyboard layout selection....Previously for Azerbaijani, no Latin layout but only the Cyrillic variant could be selected. * gnu/installer/newt/keymap.scm (add-empty-variant): New procedure. (run-keymap-page): Use it to insert an empty variant. Florian Pelz 2020-04-09installer: Allow Alt+Shift toggle from non-Latin keyboard layouts....Fixes <https://bugs.gnu.org/40493>. * gnu/installer/newt/keymap.scm (%non-latin-layouts): New variable. (%non-latin-variants): New variable. (%latin-layout+variants): New variable. (toggleable-latin-layout): New procedure to compute combined layouts. (run-keymap-page): Use it. (keyboard-layout->configuration): Apply it in config.scm. (run-layout-page): Mention Alt+Shift. * gnu/installer/keymap.scm (kmscon-update-keymap): Pass on XKB options. * gnu/installer/record.scm (<installer>): Adjust code comments. * gnu/installer.scm (apply-keymap): Pass on XKB options. (installer-steps): Adjust code comments. * gnu/packages/patches/kmscon-runtime-keymap-switch.patch: Apply XKB options. Florian Pelz 2020-04-08installer: Add proxy support....* gnu/installer/proxy.scm: New file. * gnu/local.mk (INSTALLER_MODULES): Add it. * po/guix/POTFILES.in: Add it. * gnu/installer/newt/parameters.scm (run-proxy-page): New procedure, (run-parameters-page): add the previous procedure to the parameters menu. Mathieu Othacehe 2020-04-08installer: Turn help menu into parameters menu....* gnu/local.mk (INSTALLER_MODULES): Rename help.scm into parameters.scm. * po/guix/POTFILES.in: Ditto. * gnu/installer/record.scm (<installer>): Rename help-menu into parameter-menu and help-page into parameters-page. * gnu/installer/newt/parameters.scm: Renamed from help.scm. Update information messages. * gnu/installer/newt.scm: Update accordingly. * gnu/installer/newt/keymap.scm: Ditto. Mathieu Othacehe 2020-04-07installer: Reduce height of the help window....* gnu/installer/newt/help.scm (run-help-page): Pass #:listbox-height. Ludovic Courtès 2020-04-06installer: Adapt to Guile-newt revision 2....* gnu/installer/newt/page.scm (run-input-page): Remove component argument that is not longer passed to the procedure passed to 'add-component-callback', (run-listbox-selection-page): ditto. * gnu/installer/newt/user.scm (run-user-add-page): Ditto, (run-user-add-page): ditto. Mathieu Othacehe 2020-04-06installer: Add a help page....* gnu/installer/newt/help.scm: New file. * gnu/local.mk (INSTALLER_MODULES): Add it. * po/guix/POTFILES.in: Add it. * gnu/installer/record.scm (<installer>): Add 'help-menu' and 'help-page' fields, (installer-help-menu, installer-help-page): new exported procedures. * gnu/installer/newt.scm (init): Set the help line, (help-menu, help-page): new procedures used ... (newt-installer): ... here. * gnu/installer/newt/keymap.scm (run-layout-page): Add a context argument to differenciate the help context from the main one, (run-keymap-page): add a context argument and pass it to run-layout-page. * gnu/installer.scm (compute-keymap-step): Add a context argument and pass it to 'installer-keymap-page', (installer-steps): set the help menu and pass the appropriate context to compute-keymap-step calls, (guile-newt): update to revision 2. Mathieu Othacehe 2020-03-26installer: tests: Use a filter to select desktop-environments....* gnu/installer/tests.scm (choose-services): Turn desktop-environments list into a choose-desktop-environment procedure. This way, it is easier to select all desktop-environments or none, in the same way as choose-network-service? and choose-network-management-tool? arguments. Mathieu Othacehe 2020-03-23installer: Fix cow-store umount issue....* gnu/installer/final.scm (kill-cow-users): Ignore exception that could be raised if a process disappears between reading its pid and its maps file. Mathieu Othacehe 2020-03-05installer: Fix cow-store umount....This fixes <https://bugs.gnu.org/39712>. The guix-daemon was preventing the cow-store umount, so restart it. Some udevd workers, using cow-store files might also still be around, so have some umount retries. * gnu/installer/final.scm (kill-cow-users): New procedure, (umount-cow-store): restart guix-daemon and kill all processes started from within the cow-store before trying to umount the store overlay. Also try 5 times to umount the overlay in case it is still busy. Mathieu Othacehe 2020-03-05tests: install: Add "gui-installed-os"....* gnu/installer/tests.scm: New file. * gnu/local.mk (INSTALLER_MODULES): Add it. * gnu/tests/install.scm (run-install): Add #:gui-test. Add (gnu installer tests) to the marionette imported modules. Honor GUI-TEST. Check whether SCRIPT is true. (%root-password, %syslog-conf): New variable. (operating-system-with-console-syslog, gui-test-program) (guided-installation-test): New procedures. (%extra-packages, installation-os-for-gui-tests) (%test-gui-installed-os): New variable. Ludovic Courtès 2020-03-05installer: Honor /tmp/installer-system-init-options....* gnu/installer/final.scm (install-system): Honor "/tmp/installer-system-init-options". Ludovic Courtès 2020-03-05installer: Run commands without hopping through the shell....* gnu/installer/utils.scm (run-shell-command): Rename to... (run-command): Remove call to 'call-with-temporary-output-file' and hop through Bash. Expect COMMAND to be a list of strings rather than a string. * gnu/installer/final.scm (install-system): Turn INSTALL-COMMAND into a list of strings and pass it to 'run-command'. * gnu/installer/newt/page.scm (edit-file): Likewise. Ludovic Courtès 2020-03-05installer: Bypass connectivity check when /tmp/installer-assume-online exists....This is useful for automated tests. * gnu/installer/newt/network.scm (wait-service-online)[online?]: New procedure. Check for /tmp/installer-assume-online. Use it instead of 'connman-online?'. Ludovic Courtès 2020-03-05installer: Implement a dialog on /var/guix/installer-socket....This will allow us to automate testing of the installer. * gnu/installer/utils.scm (%client-socket-file) (current-server-socket, current-clients): New variables. (open-server-socket, call-with-server-socket): New procedure. (with-server-socket): New macro. (run-shell-command): Add call to 'send-to-clients'. Select on both current-input-port and current-clients. * gnu/installer/steps.scm (run-installer-steps): Wrap 'call-with-prompt' in 'with-socket-server'. Call 'sigaction' for SIGPIPE. * gnu/installer/newt/page.scm (watch-clients!, close-port-and-reuse-fd) (run-form-with-clients, send-to-clients): New procedures. (draw-info-page): Add call to 'run-form-with-clients'. (run-input-page): Likewise. Handle EXIT-REASON equal to 'exit-fd-ready. (run-confirmation-page): Likewise. (run-listbox-selection-page): Likewise. Define 'choice->item' and use it. (run-checkbox-tree-page): Likewise. (run-file-textbox-page): Add call to 'run-form-with-clients'. Handle 'exit-fd-ready'. * gnu/installer/newt/partition.scm (run-disk-page): Pass #:client-callback-procedure to 'run-listbox-selection-page'. * gnu/installer/newt/user.scm (run-user-page): Call 'run-form-with-clients'. Handle 'exit-fd-ready'. * gnu/installer/newt/welcome.scm (run-menu-page): Define 'choice->item' and use it. Call 'run-form-with-clients'. * gnu/installer/newt/final.scm (run-install-success-page) (run-install-failed-page): When (current-clients) is non-empty, call 'send-to-clients' without displaying a choice window. Ludovic Courtès