465 lines
15 KiB
Nix
465 lines
15 KiB
Nix
/*
|
||
|
||
Configuration files are linked to /etc/fonts/${pkgs.fontconfig.configVersion}/conf.d/
|
||
|
||
This module generates a package containing configuration files and link it in /etc/fonts.
|
||
|
||
Fontconfig reads files in folder name / file name order, so the number prepended to the configuration file name decide the order of parsing.
|
||
Low number means high priority.
|
||
|
||
*/
|
||
|
||
{ config, pkgs, lib, ... }:
|
||
|
||
with lib;
|
||
|
||
let
|
||
cfg = config.fonts.fontconfig;
|
||
|
||
fcBool = x: "<bool>" + (boolToString x) + "</bool>";
|
||
pkg = pkgs.fontconfig;
|
||
|
||
# configuration file to read fontconfig cache
|
||
# priority 0
|
||
cacheConf = makeCacheConf {};
|
||
|
||
# generate the font cache setting file
|
||
# When cross-compiling, we can’t generate the cache, so we skip the
|
||
# <cachedir> part. fontconfig still works but is a little slower in
|
||
# looking things up.
|
||
makeCacheConf = { }:
|
||
let
|
||
makeCache = fontconfig: pkgs.makeFontsCache { inherit fontconfig; fontDirectories = config.fonts.fonts; };
|
||
cache = makeCache pkgs.fontconfig;
|
||
cache32 = makeCache pkgs.pkgsi686Linux.fontconfig;
|
||
in
|
||
pkgs.writeText "fc-00-nixos-cache.conf" ''
|
||
<?xml version='1.0'?>
|
||
<!DOCTYPE fontconfig SYSTEM 'fonts.dtd'>
|
||
<fontconfig>
|
||
<!-- Font directories -->
|
||
${concatStringsSep "\n" (map (font: "<dir>${font}</dir>") config.fonts.fonts)}
|
||
${optionalString (pkgs.stdenv.hostPlatform == pkgs.stdenv.buildPlatform) ''
|
||
<!-- Pre-generated font caches -->
|
||
<cachedir>${cache}</cachedir>
|
||
${optionalString (pkgs.stdenv.isx86_64 && cfg.cache32Bit) ''
|
||
<cachedir>${cache32}</cachedir>
|
||
''}
|
||
''}
|
||
</fontconfig>
|
||
'';
|
||
|
||
# rendering settings configuration file
|
||
# priority 10
|
||
renderConf = pkgs.writeText "fc-10-nixos-rendering.conf" ''
|
||
<?xml version='1.0'?>
|
||
<!DOCTYPE fontconfig SYSTEM 'fonts.dtd'>
|
||
<fontconfig>
|
||
|
||
<!-- Default rendering settings -->
|
||
<match target="pattern">
|
||
<edit mode="append" name="hinting">
|
||
${fcBool cfg.hinting.enable}
|
||
</edit>
|
||
<edit mode="append" name="autohint">
|
||
${fcBool cfg.hinting.autohint}
|
||
</edit>
|
||
<edit mode="append" name="hintstyle">
|
||
<const>hintslight</const>
|
||
</edit>
|
||
<edit mode="append" name="antialias">
|
||
${fcBool cfg.antialias}
|
||
</edit>
|
||
<edit mode="append" name="rgba">
|
||
<const>${cfg.subpixel.rgba}</const>
|
||
</edit>
|
||
<edit mode="append" name="lcdfilter">
|
||
<const>lcd${cfg.subpixel.lcdfilter}</const>
|
||
</edit>
|
||
</match>
|
||
|
||
${optionalString (cfg.dpi != 0) ''
|
||
<match target="pattern">
|
||
<edit name="dpi" mode="assign">
|
||
<double>${toString cfg.dpi}</double>
|
||
</edit>
|
||
</match>
|
||
''}
|
||
|
||
</fontconfig>
|
||
'';
|
||
|
||
# local configuration file
|
||
localConf = pkgs.writeText "fc-local.conf" cfg.localConf;
|
||
|
||
# default fonts configuration file
|
||
# priority 52
|
||
defaultFontsConf =
|
||
let genDefault = fonts: name:
|
||
optionalString (fonts != []) ''
|
||
<alias binding="same">
|
||
<family>${name}</family>
|
||
<prefer>
|
||
${concatStringsSep ""
|
||
(map (font: ''
|
||
<family>${font}</family>
|
||
'') fonts)}
|
||
</prefer>
|
||
</alias>
|
||
'';
|
||
in
|
||
pkgs.writeText "fc-52-nixos-default-fonts.conf" ''
|
||
<?xml version='1.0'?>
|
||
<!DOCTYPE fontconfig SYSTEM 'fonts.dtd'>
|
||
<fontconfig>
|
||
|
||
<!-- Default fonts -->
|
||
${genDefault cfg.defaultFonts.sansSerif "sans-serif"}
|
||
|
||
${genDefault cfg.defaultFonts.serif "serif"}
|
||
|
||
${genDefault cfg.defaultFonts.monospace "monospace"}
|
||
|
||
${genDefault cfg.defaultFonts.emoji "emoji"}
|
||
|
||
</fontconfig>
|
||
'';
|
||
|
||
# bitmap font options
|
||
# priority 53
|
||
rejectBitmaps = pkgs.writeText "fc-53-no-bitmaps.conf" ''
|
||
<?xml version="1.0"?>
|
||
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
|
||
<fontconfig>
|
||
|
||
${optionalString (!cfg.allowBitmaps) ''
|
||
<!-- Reject bitmap fonts -->
|
||
<selectfont>
|
||
<rejectfont>
|
||
<pattern>
|
||
<patelt name="scalable"><bool>false</bool></patelt>
|
||
</pattern>
|
||
</rejectfont>
|
||
</selectfont>
|
||
''}
|
||
|
||
<!-- Use embedded bitmaps in fonts like Calibri? -->
|
||
<match target="font">
|
||
<edit name="embeddedbitmap" mode="assign">
|
||
${fcBool cfg.useEmbeddedBitmaps}
|
||
</edit>
|
||
</match>
|
||
|
||
</fontconfig>
|
||
'';
|
||
|
||
# reject Type 1 fonts
|
||
# priority 53
|
||
rejectType1 = pkgs.writeText "fc-53-nixos-reject-type1.conf" ''
|
||
<?xml version="1.0"?>
|
||
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
|
||
<fontconfig>
|
||
|
||
<!-- Reject Type 1 fonts -->
|
||
<selectfont>
|
||
<rejectfont>
|
||
<pattern>
|
||
<patelt name="fontformat"><string>Type 1</string></patelt>
|
||
</pattern>
|
||
</rejectfont>
|
||
</selectfont>
|
||
|
||
</fontconfig>
|
||
'';
|
||
|
||
# fontconfig configuration package
|
||
confPkg = pkgs.runCommand "fontconfig-conf" {
|
||
preferLocalBuild = true;
|
||
} ''
|
||
dst=$out/etc/fonts/${pkg.configVersion}/conf.d
|
||
mkdir -p $dst
|
||
|
||
# fonts.conf
|
||
ln -s ${pkg.out}/etc/fonts/fonts.conf \
|
||
$dst/../fonts.conf
|
||
# TODO: remove this legacy symlink once people stop using packages built before #95358 was merged
|
||
ln -s /etc/fonts/${pkg.configVersion}/fonts.conf \
|
||
$out/etc/fonts/fonts.conf
|
||
|
||
# fontconfig default config files
|
||
ln -s ${pkg.out}/etc/fonts/conf.d/*.conf \
|
||
$dst/
|
||
|
||
# update 51-local.conf path to look at local.conf
|
||
rm $dst/51-local.conf
|
||
|
||
substitute ${pkg.out}/etc/fonts/conf.d/51-local.conf \
|
||
$dst/51-local.conf \
|
||
--replace local.conf /etc/fonts/${pkg.configVersion}/local.conf
|
||
|
||
# 00-nixos-cache.conf
|
||
ln -s ${cacheConf} $dst/00-nixos-cache.conf
|
||
|
||
# 10-nixos-rendering.conf
|
||
ln -s ${renderConf} $dst/10-nixos-rendering.conf
|
||
|
||
# 50-user.conf
|
||
# Since latest fontconfig looks for default files inside the package,
|
||
# we had to move this one elsewhere to be able to exclude it here.
|
||
${optionalString cfg.includeUserConf ''
|
||
ln -s ${pkg.out}/etc/fonts/conf.d.bak/50-user.conf $dst/50-user.conf
|
||
''}
|
||
|
||
# local.conf (indirect priority 51)
|
||
${optionalString (cfg.localConf != "") ''
|
||
ln -s ${localConf} $dst/../local.conf
|
||
''}
|
||
|
||
# 52-nixos-default-fonts.conf
|
||
ln -s ${defaultFontsConf} $dst/52-nixos-default-fonts.conf
|
||
|
||
# 53-no-bitmaps.conf
|
||
ln -s ${rejectBitmaps} $dst/53-no-bitmaps.conf
|
||
|
||
${optionalString (!cfg.allowType1) ''
|
||
# 53-nixos-reject-type1.conf
|
||
ln -s ${rejectType1} $dst/53-nixos-reject-type1.conf
|
||
''}
|
||
'';
|
||
|
||
# Package with configuration files
|
||
# this merge all the packages in the fonts.fontconfig.confPackages list
|
||
fontconfigEtc = pkgs.buildEnv {
|
||
name = "fontconfig-etc";
|
||
paths = cfg.confPackages;
|
||
ignoreCollisions = true;
|
||
};
|
||
in
|
||
{
|
||
imports = [
|
||
(mkRenamedOptionModule [ "fonts" "fontconfig" "ultimate" "allowBitmaps" ] [ "fonts" "fontconfig" "allowBitmaps" ])
|
||
(mkRenamedOptionModule [ "fonts" "fontconfig" "ultimate" "allowType1" ] [ "fonts" "fontconfig" "allowType1" ])
|
||
(mkRenamedOptionModule [ "fonts" "fontconfig" "ultimate" "useEmbeddedBitmaps" ] [ "fonts" "fontconfig" "useEmbeddedBitmaps" ])
|
||
(mkRenamedOptionModule [ "fonts" "fontconfig" "ultimate" "forceAutohint" ] [ "fonts" "fontconfig" "forceAutohint" ])
|
||
(mkRenamedOptionModule [ "fonts" "fontconfig" "ultimate" "renderMonoTTFAsBitmap" ] [ "fonts" "fontconfig" "renderMonoTTFAsBitmap" ])
|
||
(mkRemovedOptionModule [ "fonts" "fontconfig" "hinting" "style" ] "")
|
||
(mkRemovedOptionModule [ "fonts" "fontconfig" "forceAutohint" ] "")
|
||
(mkRemovedOptionModule [ "fonts" "fontconfig" "renderMonoTTFAsBitmap" ] "")
|
||
] ++ lib.forEach [ "enable" "substitutions" "preset" ]
|
||
(opt: lib.mkRemovedOptionModule [ "fonts" "fontconfig" "ultimate" "${opt}" ] ''
|
||
The fonts.fontconfig.ultimate module and configuration is obsolete.
|
||
The repository has since been archived and activity has ceased.
|
||
https://github.com/bohoomil/fontconfig-ultimate/issues/171.
|
||
No action should be needed for font configuration, as the fonts.fontconfig
|
||
module is already used by default.
|
||
'');
|
||
|
||
options = {
|
||
|
||
fonts = {
|
||
|
||
fontconfig = {
|
||
enable = mkOption {
|
||
type = types.bool;
|
||
default = true;
|
||
description = ''
|
||
If enabled, a Fontconfig configuration file will be built
|
||
pointing to a set of default fonts. If you don't care about
|
||
running X11 applications or any other program that uses
|
||
Fontconfig, you can turn this option off and prevent a
|
||
dependency on all those fonts.
|
||
'';
|
||
};
|
||
|
||
confPackages = mkOption {
|
||
internal = true;
|
||
type = with types; listOf path;
|
||
default = [ ];
|
||
description = ''
|
||
Fontconfig configuration packages.
|
||
'';
|
||
};
|
||
|
||
antialias = mkOption {
|
||
type = types.bool;
|
||
default = true;
|
||
description = ''
|
||
Enable font antialiasing. At high resolution (> 200 DPI),
|
||
antialiasing has no visible effect; users of such displays may want
|
||
to disable this option.
|
||
'';
|
||
};
|
||
|
||
dpi = mkOption {
|
||
type = types.int;
|
||
default = 0;
|
||
description = ''
|
||
Force DPI setting. Setting to <literal>0</literal> disables DPI
|
||
forcing; the DPI detected for the display will be used.
|
||
'';
|
||
};
|
||
|
||
localConf = mkOption {
|
||
type = types.lines;
|
||
default = "";
|
||
description = ''
|
||
System-wide customization file contents, has higher priority than
|
||
<literal>defaultFonts</literal> settings.
|
||
'';
|
||
};
|
||
|
||
defaultFonts = {
|
||
monospace = mkOption {
|
||
type = types.listOf types.str;
|
||
default = ["DejaVu Sans Mono"];
|
||
description = ''
|
||
System-wide default monospace font(s). Multiple fonts may be
|
||
listed in case multiple languages must be supported.
|
||
'';
|
||
};
|
||
|
||
sansSerif = mkOption {
|
||
type = types.listOf types.str;
|
||
default = ["DejaVu Sans"];
|
||
description = ''
|
||
System-wide default sans serif font(s). Multiple fonts may be
|
||
listed in case multiple languages must be supported.
|
||
'';
|
||
};
|
||
|
||
serif = mkOption {
|
||
type = types.listOf types.str;
|
||
default = ["DejaVu Serif"];
|
||
description = ''
|
||
System-wide default serif font(s). Multiple fonts may be listed
|
||
in case multiple languages must be supported.
|
||
'';
|
||
};
|
||
|
||
emoji = mkOption {
|
||
type = types.listOf types.str;
|
||
default = ["Noto Color Emoji"];
|
||
description = ''
|
||
System-wide default emoji font(s). Multiple fonts may be listed
|
||
in case a font does not support all emoji.
|
||
|
||
Note that fontconfig matches color emoji fonts preferentially,
|
||
so if you want to use a black and white font while having
|
||
a color font installed (eg. Noto Color Emoji installed alongside
|
||
Noto Emoji), fontconfig will still choose the color font even
|
||
when it is later in the list.
|
||
'';
|
||
};
|
||
};
|
||
|
||
hinting = {
|
||
enable = mkOption {
|
||
type = types.bool;
|
||
default = true;
|
||
description = ''
|
||
Enable font hinting. Hinting aligns glyphs to pixel boundaries to
|
||
improve rendering sharpness at low resolution. At high resolution
|
||
(> 200 dpi) hinting will do nothing (at best); users of such
|
||
displays may want to disable this option.
|
||
'';
|
||
};
|
||
|
||
autohint = mkOption {
|
||
type = types.bool;
|
||
default = false;
|
||
description = ''
|
||
Enable the autohinter in place of the default interpreter.
|
||
The results are usually lower quality than correctly-hinted
|
||
fonts, but better than unhinted fonts.
|
||
'';
|
||
};
|
||
};
|
||
|
||
includeUserConf = mkOption {
|
||
type = types.bool;
|
||
default = true;
|
||
description = ''
|
||
Include the user configuration from
|
||
<filename>~/.config/fontconfig/fonts.conf</filename> or
|
||
<filename>~/.config/fontconfig/conf.d</filename>.
|
||
'';
|
||
};
|
||
|
||
subpixel = {
|
||
|
||
rgba = mkOption {
|
||
default = "rgb";
|
||
type = types.enum ["rgb" "bgr" "vrgb" "vbgr" "none"];
|
||
description = ''
|
||
Subpixel order. The overwhelming majority of displays are
|
||
<literal>rgb</literal> in their normal orientation. Select
|
||
<literal>vrgb</literal> for mounting such a display 90 degrees
|
||
clockwise from its normal orientation or <literal>vbgr</literal>
|
||
for mounting 90 degrees counter-clockwise. Select
|
||
<literal>bgr</literal> in the unlikely event of mounting 180
|
||
degrees from the normal orientation. Reverse these directions in
|
||
the improbable event that the display's native subpixel order is
|
||
<literal>bgr</literal>.
|
||
'';
|
||
};
|
||
|
||
lcdfilter = mkOption {
|
||
default = "default";
|
||
type = types.enum ["none" "default" "light" "legacy"];
|
||
description = ''
|
||
FreeType LCD filter. At high resolution (> 200 DPI), LCD filtering
|
||
has no visible effect; users of such displays may want to select
|
||
<literal>none</literal>.
|
||
'';
|
||
};
|
||
|
||
};
|
||
|
||
cache32Bit = mkOption {
|
||
default = false;
|
||
type = types.bool;
|
||
description = ''
|
||
Generate system fonts cache for 32-bit applications.
|
||
'';
|
||
};
|
||
|
||
allowBitmaps = mkOption {
|
||
type = types.bool;
|
||
default = true;
|
||
description = ''
|
||
Allow bitmap fonts. Set to <literal>false</literal> to ban all
|
||
bitmap fonts.
|
||
'';
|
||
};
|
||
|
||
allowType1 = mkOption {
|
||
type = types.bool;
|
||
default = false;
|
||
description = ''
|
||
Allow Type-1 fonts. Default is <literal>false</literal> because of
|
||
poor rendering.
|
||
'';
|
||
};
|
||
|
||
useEmbeddedBitmaps = mkOption {
|
||
type = types.bool;
|
||
default = false;
|
||
description = ''Use embedded bitmaps in fonts like Calibri.'';
|
||
};
|
||
|
||
};
|
||
|
||
};
|
||
|
||
};
|
||
config = mkMerge [
|
||
(mkIf cfg.enable {
|
||
environment.systemPackages = [ pkgs.fontconfig ];
|
||
environment.etc.fonts.source = "${fontconfigEtc}/etc/fonts/";
|
||
})
|
||
(mkIf cfg.enable {
|
||
fonts.fontconfig.confPackages = [ confPkg ];
|
||
})
|
||
];
|
||
|
||
}
|