This is a squash commit of the joint work from:
* Jan Tojnar (@jtojnar)
* Linus Heckemann (@lheckemann)
* Ryan Mulligan (@ryantm)
* romildo (@romildo)
* Tom Hunger (@teh)
Checking the keyboard layout has been a long set of hurdles so far, with
several attempts. Originally, the checking was introduced by @lheckemann
in #23709.
The initial implementation just was trying to check whether the symbols/
directory contained the layout name.
Unfortunately, that wasn't enough and keyboard variants weren't
recognized, so if you set layout to eg. "dvorak" it will fail with an
error (#25526).
So my improvement on that was to use sed to filter rules/base.lst and
match the layout against that. I fucked up twice with this, first
because layout can be a comma-separated list which I didn't account for
and second because I ran into a Nix issue (NixOS/nix#1426).
After fixing this, it still wasn't enough (and this is btw. what
localectl also does), because we were *only* matching rules but not
symbols, so using "eu" as a layout won't work either.
I decided now it's the time to actually use libxkbcommon to try
compiling the keyboard options and see whether it succeeds. This comes
in the form of a helper tool called xkbvalidate.
IMHO this approach is a lot less error-prone and we can be sure that we
don't forget about anything because that's what the X server itself uses
to compile the keymap.
Another advantage of this is that we now validate the full set of XKB
options rather than just the layout.
Tested this against a variety of wrong and correct keyboard
configurations and against the "keymap" NixOS VM tests.
Signed-off-by: aszlig <aszlig@redmoonstudios.org>
Cc: @lheckemann, @peti, @7c6f434c, @tohl, @vcunat, @lluchs
Fixes: #27597
* lib: introduce imap0, imap1
For historical reasons, imap starts counting at 1 and it's not
consistent with the rest of the lib.
So for now we split imap into imap0 that starts counting at zero and
imap1 that starts counting at 1. And imap is marked as deprecated.
See c71e2d4235 (commitcomment-21873221)
* replace uses of lib.imap
* lib: move imap to deprecated.nix
Regression introduced by 44c64fef16.
The services.xserver.layout option allows to specify more than one
layout separated by comma, which the commit above didn't take into
account.
This is very similar to @lheckemann's pull request (#26984) but differs
in the following ways:
* Print out the full list available layouts (as suggested by @0xABAB
in [1]).
* Loop over $layout using the default IFS (and thus no need for
escaping ${cfg.layout}), because the layouts won't contain white
spaces.
* Re-do the error message, which now uses multiple echos instead of a
heredoc, so the line is wrapped according to the viewers terminal
width.
I've tested this with several good and bad layouts and also against the
keymap NixOS VM subtests.
[1]: https://github.com/NixOS/nixpkgs/pull/26984#discussion_r125146700
Signed-off-by: aszlig <aszlig@redmoonstudios.org>
Fixes: #26961Closes: #26984
- Update to version 1.3.0
- Remove dependency on `oxygen-icons5`, as Lumina desktop now distributes
it’s own "material-design-[light/dark]" icon themes and uses them as the
default icon sets.
First of all, thanks to @pbogdan for getting this problem reproduced:
https://github.com/NixOS/nixpkgs/commit/2014db3efcd2a#commitcomment-22815396
Also thanks to @vcunat for bringing this to my attention:
https://github.com/NixOS/nixpkgs/commit/44c64fef16ed5#commitcomment-22813503
Although it is not entirely clear why Nix has killed the build prior to
finishing, it seems to be related to the process substition I was using.
So instead of using "exec touch", let's wrap this inside an if so we
don't exit too early.
Tested this against all sub-tests in nixos/tests/keymap.nix and also a
few configurations with wrong keyboard layout definitions.
Signed-off-by: aszlig <aszlig@redmoonstudios.org>
Enumerating the symbols directory doesn't include variants, so we're now
basically doing what "localectl list-x11-keymap-layouts" does but we use
sed instead.
The reason I'm not using localectl directly is because the path to
rules/base.lst is hardcoded in the systemd source.
Of course, the XKB specification allows for much more complicated rules,
but at least this should cover the most basic ones including variants.
So the sed expression itself is just for listing the available layouts
and variants and we use a grep with -xF to match only full lines without
interpreting regular expressions.
This should again allow to set "dvorak" as the layout option.
Signed-off-by: aszlig <aszlig@redmoonstudios.org>
Cc: @lheckemann
Fixes: #25526
Plugin and QML import paths were previously determined by NIX_PROFILES. Using
PATH instead allows Qt applications to work under nix-shell without further
modification.
- Reduce environment pollution with a separate $bin output containing programs,
plugins, and shared data. Libraries remain in $out and are not installed into
the environment.
- Only propagate build inputs as required.
Restructure the nixos-artwork to make it easy to selectively
incorporate other components from upstream without needing to download
the full package.
Until now only the Gnome_Dark wallpaper was included. Add other
wallpapers available in the package repository.
While systemd suggests using the pre-defined graphical-session user
target, I found that this interface is difficult to use. Additionally,
no other major distribution, even in their unstable versions, currently
use this mechanism.
The window or desktop manager is supposed to run in a systemd user service
which activates graphical-session.target and the user services that are
binding to this target. The issue is that we can't elegantly pass the
xsession environment to the window manager session, in particular
whereas the PassEnvironment option does work for DISPLAY, it for some
mysterious reason won't for PATH.
This commit implements a new graphical user target that works just like
default.target. Services which should be run in a graphical session just
need to declare wantedBy graphical.target. The graphical target will be
activated in the xsession before executing the window or display manager.
Fixes#17858.
Without this change there will be silent errors when enabling screen
sharing. The GUI thinks it enables the service when it in fact does not
(errors are seen in the system journal).
vino is already in the closure of gnome-control-center, so this is
basically free.
Configuration of screen sharing is done in GNOME control center.
When you have a setup consisting of multiple monitors, the default is
that the first monitor detected by xrandr is set to the primary monitor.
However this may not be the monitor you need to be set as primary. In
fact this monitor set to primary may in fact be disconnected.
This has happened for the original submitter of the pull request and it
affected these programs:
* XMonad: Gets confused with Super + {w,e,r}
* SDDM: Puts the login screen on the wrong monitor, and does not
currently duplicate the login screen on all monitors
* XMobar: Puts the XMobar on the wrong monitor, as it only puts the
taskbar on the primary monitor
These changes should fix that not only by setting a primary monitor in
xrandrHeads but also make it possible to make a different monitor the
primary one.
The changes are also backwards-compatible.
Use a solid black background when no background image (via
~/.background-image) is provided. In my case this fixes the really
strange behaviour when i3 without a desktop manager starts with the SDDM
login screen as background image.
The xsession script was called with inconsistent (depending on the
display managers) and wrong parameters. The main reason for this where
the spaces the parameter syntax. In order to fix this the old syntax:
$1 = '<desktop-manager> + <window-manager>'
Will be replaced with a new syntax:
$1 = "<desktop-manager>+<window-manager>"
This assumes that neither "<desktop-manager>" nor "<window-manager>"
contain the "+" character but this shouldn't be a problem.
This patch also fixes the quoting by using double quotes (") instead of
single quotes (') [0].
Last but not least this'll add some comments for the better
understanding of the script.
[0]: https://specifications.freedesktop.org/desktop-entry-spec/latest/ar01s06.html
It was asked by @CMCDragonkai to elaborate on that, so let's just do
this by actually providing a code comment.
Signed-off-by: aszlig <aszlig@redmoonstudios.org>
Using invalid module options in the submodule isn't very nice, because
it doesn't give very useful errors in case of type mismatch, also we
don't get descriptions of these options as they're effecively
nonexistent to the module system. Another downside of this is that
merging of these options isn't done correctly as well (eg. for
types.lines).
So we now have proper submodules for each xrandrHead and we also use
corcedTo in the type of xrandrHeads so that we can populate the
submodule's "output" option in case a plain string is defined for a list
item.
Instead of silently skipping multiple primary heads, we now have an
assertion, which displays a message and aborts configuration evaluation
appropriately.
Signed-off-by: aszlig <aszlig@redmoonstudios.org>
The main change here is a patch of SLiM to tread a log file of
/dev/stderr specially in that it now uses std::cerr instead of a file
for logging.
This allows us to set the logfile to stderr in NixOS for the generated
SLiM configuration file and we now get logging to the systemd journal.
Signed-off-by: aszlig <aszlig@redmoonstudios.org>
This reverts commit 6b7c5ba535.
Unfortunately it seems like this broke slim, lightdm and gdm (see #25068
and #23264). This is already reverted in the 17.03 branch (99dfb6d).
TODO: We need tests for slim and lightdm and fix the test for gdm
(failing since 2016-10-26) to prevent such breakage in the future.
kimpanel does not show installed IBus engines or allow switching input
methods. kimpanel does show configured keyboard layouts through kxkb, so I
believe there is some problem communicating with IBus. No error messages are
produced in the log and I have been unable to discover the cause. I have no
intention of continuing to work on kimpanel at this time, so it should be
disabled. The GTK+ 3-based panel provided by IBus is perfectly serviceable in
the interim.
The Infinality bytecode interpreter is removed in favor of the new v40 TrueType
interpreter. In the past, the Infinality interpreter provided support for
ClearType-style hinting instructions while the default interpreter (then v35)
provided support only for original TrueType-style instructions. The v40
interpreter corrects this deficiency, so the Infinality interpreter is no longer
necessary.
To understand why the Infinality interpreter is no longer necessary, we should
understand how ClearType differs from TrueType and how the v40 interpreter
works. The following is a summary of information available on the FreeType
website [1] mixed with my own editorializing.
TrueType instructions use horizontal and vertical hints to improve glyph
rendering. Before TrueType, fonts were only vertically hinted; horizontal hints
improved rendering by snapping stems to pixel boundaries. Horizontal hinting is
a risk because it can significantly distort glyph shapes and kerning. Extensive
testing at different resolutions is needed to perfect the TrueType
hints. Microsoft invested significant effort to do this with its "Core fonts for
the Web" project, but few other typefaces have seen this level of attention.
With the advent of subpixel rendering, the effective horizontal resolution of
most displays increased significantly. ClearType eschews horizontal hinting in
favor of horizontal supersampling. Most fonts are designed for the Microsoft
bytecode interpreter, which implements a compatibility mode with
TrueType-style (horizontal and vertical) instructions. However, applying the
full horizontal hints to subpixel-rendered fonts leads to color fringes and
inconsistent stem widths. The Infinality interpreter implements several
techniques to mitigate these problems, going so far as to embed font- and
glyph-specific hacks in the interpreter. On the other hand, the v40 interpreter
ignores the horizontal hinting instructions so that glyphs render as they are
intended to on the Microsoft interpreter. Without the horizontal hints, the
problems of glyph and kerning distortion, color fringes, and inconsistent stem
widths--the problems the Infinality interpreter was created to solve--simply
don't occur in the first place.
There are also security concerns which motivate removing the Infinality patches.
Although there is an updated version of the Infinality interpreter for FreeType
2.7, the lack of a consistent upstream maintainer is a security concern. The
interpreter is a Turing-complete virtual machine which has had security
vulnerabilities in the past. While the default interpreter is used in billions
of devices and is maintained by an active developer, the Infinality interpreter
is neither scrutinized nor maintained. We will probably never know if there are
defects in the Infinality interpreter, and if they were discovered they would
likely never be fixed. I do not think that is an acceptable situtation for a
core library like FreeType.
Dropping the Infinality patches means that font rendering will be less
customizable. I think this is an acceptable trade-off. The Infinality
interpreter made many compromises to mitigate the problems with horizontal
hinting; the main purpose of customization is to tailor these compromises to the
user's preferences. The new interpreter does not have to make these compromises
because it renders fonts as their designers intended, so this level of
customization is not necessary.
The Infinality-associated patches are also removed from cairo. These patches
only set the default rendering options in case they aren't set though
Fontconfig. On NixOS, the rendering options are always set in Fontconfig, so
these patches never actually did anything for us!
The Fontconfig test suite is patched to account for a quirk in the way PCF fonts
are named.
The fontconfig option `hintstyle` is no longer configurable in NixOS. This
option selects the TrueType interpreter; the v40 interpreter is `hintslight` and
the older v35 interpreter is `hintmedium` or `hintfull` (which have actually
always been the same thing). The setting may still be changed through the
`localConf` option or by creating a user Fontconfig file.
Users with HiDPI displays should probably disable hinting and antialiasing: at
best they have no visible effect.
The fontconfig-ultimate settings are still available in NixOS, but they are no
longer the default. They still work, but their main purpose is to set rendering
quirks which are no longer necessary and may actually be
detrimental (e.g. setting `hintfull` for some fonts). Also, the vast array of
font substitutions provided is not an appropriate default; the default setting
should be to give the user the font they asked for.
[1]. https://www.freetype.org/freetype2/docs/subpixel-hinting.html
This reverts commit 29caa185a7.
Not clear what the proper thing to do is. cf94cdb59b renders this
question mostly moot. Reverting before 17.03 branch to avoid a repeat
of #19054.
