most modules can be evaluated for their documentation in a very
restricted environment that doesn't include all of nixpkgs. this
evaluation can then be cached and reused for subsequent builds, merging
only documentation that has changed into the cached set. since nixos
ships with a large number of modules of which only a few are used in any
given config this can save evaluation a huge percentage of nixos
options available in any given config.
in tests of this caching, despite having to copy most of nixos/, saves
about 80% of the time needed to build the system manual, or about two
second on the machine used for testing. build time for a full system
config shrank from 9.4s to 7.4s, while turning documentation off
entirely shortened the build to 7.1s.
some options have default that are best described in prose, such as
defaults that depend on the system stateVersion, defaults that are
derivations specific to the surrounding context, or those where the
expression is much longer and harder to understand than a simple text
snippet.
When 'services.xserver.windowManager.xmonad.config' is not null, the
restart feature won't work by default and is not desirable unless
specific care is made, as explained by the documentation.
I think it's reasonable to not include the haskell dependencies in the
environment by default. That reduces the size of my system by 2GB.
Just setting the XKB_CONFIG_ROOT should be enough, so we don't need to
rebuild the xserver, xkbcomp and other packages anymore.
However, the variable has to be passed explicitely to scripts running at
build time: in particular to xkbvalidate and xkb-console-keymap.
Qt links against GTK to be able to use native GTK file chooser
in GTK-oriented DEs. However, GTK expects a specific environment,
which means the application needs to be wrapped to prevent crashes
when file chooser is opened in some environments.
This patch bypasses the need for wrapping Qt applications with GTK-related
environment since the file chooser dialogue will now come from a separate
process (instantiated by the XDG desktop portal via D-Bus).
In the future, we could remove the GTK dependency from Qt to fix the crashes
on non-{GNOME,Pantheon} environments. Then, users would be able to choose
between non-native Qt dialogue or native one facilitated by XDG portals
(e.g. through setting `QT_QPA_PLATFORMTHEME` to either `qgnomeplatform`,
or `xdgdesktopportal`).
One disadvantage is adding a Qt dependency to GNOME, even for people
who might not use any Qt apps. But they can easily just add `qt5.enable = false;`
to their NixOS configuration.
The configuration is also presumably less battle tested than plain Qt
with its first-party GTK integration. But it is backed by Fedora
and used by Manjaro GNOME so it cannot be that bad.
Lastly, I worry about ABI compatibility of the platform modules
with apps installed from different Nixpkgs revision.
Recommend to use services.xserver.dpi option instead. Mention in the
documentation that it's a sledgehammer approach and monitor settings should be
used instead.
Also don't set DPI in fontconfig settings; fontconfig should use Xft settings
by default so let's not override one value in multiple places. For example,
user now can set DPI via ~/.Xresources properly.
See https://github.com/NixOS/nixpkgs/issues/73095
It looks like it can finally be removed: the `Failed to open gpu
'/dev/dri/card0'` error is gone and the nixosTests.gnome test is
passing (checked 4 times in a row).
GDM 40.1 switched from storing X11 sessions in the "XSession" property
on AccountService to "Session" with a "x11" "SessionType".
For compatibility reasons, we should set both, since AccountService
doesn't seem to provide the compatibility for us.
It was basically just a `environment.systemPackages` synonym,
only GNOME used it, and it was stretching the responsibilities
of the flatpak module too far.
It also makes it cleaner to avoid installing the program
using GNOME module’s `excludePackages` option.
Partially reverts: https://github.com/NixOS/nixpkgs/pull/101516
Fixes: https://github.com/NixOS/nixpkgs/issues/110310
(It was requested by them.)
I left one case due to fetching from their personal repo:
pkgs/desktops/pantheon/desktop/extra-elementary-contracts/default.nix
- In order to use GIO/GVFS it is enough to enable the gvfs service.
- The module option services.gvfs.package can be used to choose a
variation of the gvfs package, if desired.
A too low number of inotify user instances causes similar problems as
max_user_watches. Without this, my workstation keeps running into things
like this:
$ sudo systemctl restart display-manager.service
Failed to allocate directory watch: Too many open files
The notification daemon is just one part of XFCE that is, to the best of
my understanding, not particularly related to it being desktop or not —
for instance, not more related than the session manager or the like.
Without this patch merging options like
services.xserver.windowManager.xmonad.extraPackages
results in the evaluation error:
error: value is a list while a set was expected, at nixpkgs/lib/options.nix:77:23
With this patch we get the desired merging behaviour that just concatenates the
resulting package lists.
(cherry picked from commit 6e99f9fdec)
Co-Authored-By: Silvan Mosberger <contact@infinisil.com>
This commits deprecates `services.xserver.libinput` for multiple
settings, one for each kind of device:
- `services.xserver.libinput.mouse`
- `services.xserver.libinput.touchpad`
Looking at `man 4 libinput`, they basically have the same options so I
simply replicated them, even if some options doesn't make sense for
mouse (`tapping` for example).
With this commit this is now possible:
```nix
{
services.xserver.libinput = {
enable = true;
mouse = {
accelProfile = "flat";
};
touchpad = {
naturalScrolling = true;
};
};
}
```
And you will have a mouse with no natural scrolling but with accel
profile flat, while touchpad will have natural scrolling but accel
profile adaptative (default).
It is possible to support more device types
(tablets/keyboards/touchscreens), but at least looking at the
libinput manual for those devices it doesn't seem that it has any
configuration options for them. They can still be configured using
`services.xserver.inputClassSections` though, and this will work now
since there is no rule by default that matches them.
Closes issue #75007, while also making configuration of mouses and
touchpads using Nix attrs possible like said in PR #73785.
For in NixOS it is beneficial if both plasma5 and pam use the same Qt5
version. Because the plasma5 desktop may use a different version as the
default Qt5 version, we introduce plasma5Packages.
Instead of treating the sddm config a wall of text that doesn't allow us
to override anything, turn it into an attribute set.
We dump `extraConfig` and instead introduce `settings` that is merged
with the module defaults to provide the final configuration.
There is some additional noise in here due to nixpkgs-fmt.
* nixos/xmonad: xmonad config w/ghc+xmessage
When the "config" option isn't set, we use xmonad-with-packages to
provide xmonad with runtime access to an isolated ghc, ensuring it can
recompile and exec a user's local config (e.g. $HOME/.xmonad/xmonad.hs)
regardless of which ghc (if any) is on PATH.
When the "config" option is set, however, we compile a configured xmonad
executable upfront (during nixos-rebuild), and prior to this commit, it
was not provided with runtime access to an isolated ghc.
As a result, with the "config" option set, it was not possible
to recompile and exec a user's local config unless there was a
compatible version of ghc on PATH with the necessary packages (xmonad,
xmonad-contrib, etc.) in its package database. Adding such a ghc to
environment.systemPackages, e.g.
(haskellPackages.ghcWithPackages (ps: with ps; [xmonad xmonad-contrib]))
is problematic because it adds both ghc and an unconfigured xmonad to
PATH, e.g.
$ ls -l $(which xmonad ghc)
lrwxrwxrwx ... /run/current-system/sw/bin/ghc -> /nix/store/...-ghc-8.10.2-with-packages/bin/ghc
lrwxrwxrwx ... /run/current-system/sw/bin/xmonad -> /nix/store/...-ghc-8.10.2-with-packages/bin/xmonad
Having the unconfigured xmonad on PATH is particularly bad because
restarting xmonad will dump the user into the unconfigured version, and
if no local config exists (e.g. in $HOME/.xmonad/xmonad.hs), they'll be
left in this unconfigured state.
In this commmit, we give the configured xmonad runtime access to ghc
like xmonad-with-packages does for the unconfigured version. The aim
is to allow the user to switch between the nixos module's config and a
local config (e.g. $HOME/.xmonad/xmonad.hs) at will, so they can try out
config changes without performing a nixos-rebuild.
Since the xmonad on PATH is the configured executable, there's no
danger a user could unwittingly restart into the unconfigured version,
and because xmonad will refuse to recompile when no local config
exists, there's no danger a user could unwittingly recompile into an
unconfigured version.
Given that a local config exists, the recompile/restart behavior depends
on two factors:
- which entry point is used
* 'XMonad.xmonad' (default)
* 'XMonad.launch' (recommended in "config" option description)
- what operation is triggered (i.e. via mod+q)
* `spawn "xmonad --recompile && xmonad --restart"` (default)
* `restart "xmonad" True`
* custom function
If the default 'XMonad.xmonad' entrypoint and default mod+q operation
are used, hitting mod+q will compile and exec the local config, which
will remain in use until next time the display manager is restarted.
If the entrypoint is changed to 'XMonad.launch' but mod+q left with its
default operation, hitting mod+q will have no visible effect. The logs
(as seen by running `journalctl --identifier xmonad --follow`) will show
an error,
X Error of failed request: BadAccess (attempt to access private resource denied)
which indicates that the shell was unable to start xmonad because
another window manager is already running (namely, the nixos-configured
xmonad).
https://wiki.haskell.org/Xmonad/Frequently_asked_questions#X_Error_of_failed_request:_BadAccess_.28attempt_to_access_private_resource_denied.29
Changing the mod+q operation to `restart "xmonad" True` (as recommended
in the "config" option's description) will allow a restart of the
nixos-configured xmonad to be triggeredy by hitting mod+q.
Finally, if the entrypoint is 'XMonad.launch', mod+q has been
bound to `restart "xmonad" True` and another key bound to a custom
recompile/restart function (e.g. `compileRestart` as shown in the
"config" option example), the user can switch between the nixos module's
config and their local config, with the custom key switching to the
local config and mod+q switching back.
* nixos/xmonad: refactor let binding
* nixos/xmonad: refactor (eliminate duplicate code)
* nixos/xmonad: install man pages
Prior to this commit, man pages were not installed if the "config"
option was set.
* nixos/xmonad: comment grammar fixups
* nixos/xmonad: writeStateToFile in example config
Calling writeStateToFile prior to recompiling and restarting allows
state (workspaces, etc.) to be preserved across the restart.
* nixos/xmonad: add ivanbrennan to maintainers
* nixos/xmonad: adjust compileRestart example
* nixos/xmonad: add missing import to example config
This partially reverts bf3d3dd19b.
I don't know why we weren't getting a default logfile back then but Xorg
definitely provides one now ($XDG_DATA_HOME for regular users and /var/log for
root, see `man Xorg`)
These were broken since 2016:
f0367da7d1
since StartLimitIntervalSec got moved into [Unit] from [Service].
StartLimitBurst has also been moved accordingly, so let's fix that one
too.
NixOS systems have been producing logs such as:
/nix/store/wf98r55aszi1bkmln1lvdbp7znsfr70i-unit-caddy.service/caddy.service:31:
Unknown key name 'StartLimitIntervalSec' in section 'Service', ignoring.
I have also removed some unnecessary duplication in units disabling
rate limiting since setting either interval or burst to zero disables it
(ad16158c10/src/basic/ratelimit.c (L16))
Currently lxqt is a desktop environment that's compiled against qt514.
To avoid possible issues (#101369), we (hopefully) use the same qt
version as the desktop environment at hand. LXQT should move to qt515,
and for the long term the correct qt version should be inherited by the
sddm module.
>From https://apps.kde.org/:
Elisa is a simple KDE music player (with builtin internet radio support),
Okular is a universal KDE document viewer (can fill PDF forms),
Gwenview is a fast and easy to use KDE image viewer.
All three are missing in the default installation KDE installation, e.g.
services.xserver = {
displayManager.sddm.enable = true;
desktopManager.plasma5.enable = true;
};
which provides no alternatives, hence requiring them whilst being
offline is unfortunate, so install them by default.
