ae74c356d9
Let's get rid of those merge conflicts.
278 lines
9.1 KiB
Nix
278 lines
9.1 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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{
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options = {
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fonts = {
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fontconfig = {
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enable = mkOption {
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type = types.bool;
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default = true;
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description = ''
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If enabled, a Fontconfig configuration file will be built
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pointing to a set of default fonts. If you don't care about
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running X11 applications or any other program that uses
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Fontconfig, you can turn this option off and prevent a
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dependency on all those fonts.
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'';
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};
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antialias = mkOption {
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type = types.bool;
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default = true;
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description = "Enable font antialiasing.";
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};
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dpi = mkOption {
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type = types.int;
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default = 0;
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description = ''
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Force DPI setting. Setting to <literal>0</literal> disables DPI
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forcing; the DPI detected for the display will be used.
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'';
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};
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defaultFonts = {
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monospace = mkOption {
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type = types.listOf types.str;
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default = ["DejaVu Sans Mono"];
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description = ''
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System-wide default monospace font(s). Multiple fonts may be
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listed in case multiple languages must be supported.
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'';
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};
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sansSerif = mkOption {
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type = types.listOf types.str;
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default = ["DejaVu Sans"];
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description = ''
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System-wide default sans serif font(s). Multiple fonts may be
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listed in case multiple languages must be supported.
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'';
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};
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serif = mkOption {
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type = types.listOf types.str;
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default = ["DejaVu Serif"];
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description = ''
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System-wide default serif font(s). Multiple fonts may be listed
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in case multiple languages must be supported.
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'';
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};
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};
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hinting = {
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enable = mkOption {
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type = types.bool;
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default = true;
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description = "Enable TrueType hinting.";
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};
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autohint = mkOption {
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type = types.bool;
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default = true;
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description = ''
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Enable the autohinter, which provides hinting for otherwise
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un-hinted fonts. The results are usually lower quality than
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correctly-hinted fonts.
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'';
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};
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style = mkOption {
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type = types.str // {
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check = flip elem ["none" "slight" "medium" "full"];
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};
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default = "full";
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description = ''
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TrueType hinting style, one of <literal>none</literal>,
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<literal>slight</literal>, <literal>medium</literal>, or
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<literal>full</literal>.
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'';
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};
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};
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includeUserConf = mkOption {
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type = types.bool;
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default = true;
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description = ''
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Include the user configuration from
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<filename>~/.config/fontconfig/fonts.conf</filename> or
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<filename>~/.config/fontconfig/conf.d</filename>.
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'';
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};
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subpixel = {
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rgba = mkOption {
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default = "rgb";
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type = types.enum ["rgb" "bgr" "vrgb" "vbgr" "none"];
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description = ''
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Subpixel order, one of <literal>none</literal>,
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<literal>rgb</literal>, <literal>bgr</literal>,
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<literal>vrgb</literal>, or <literal>vbgr</literal>.
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'';
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};
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lcdfilter = mkOption {
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default = "default";
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type = types.enum ["none" "default" "light" "legacy"];
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description = ''
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FreeType LCD filter, one of <literal>none</literal>,
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<literal>default</literal>, <literal>light</literal>, or
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<literal>legacy</literal>.
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'';
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};
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};
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cache32Bit = mkOption {
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default = false;
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type = types.bool;
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description = ''
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Generate system fonts cache for 32-bit applications.
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'';
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};
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};
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};
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};
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config =
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let fontconfig = config.fonts.fontconfig;
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fcBool = x: "<bool>" + (if x then "true" else "false") + "</bool>";
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renderConf = ''
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<?xml version='1.0'?>
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<!DOCTYPE fontconfig SYSTEM 'fonts.dtd'>
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<fontconfig>
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<!-- Default rendering settings -->
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<match target="font">
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<edit mode="assign" name="hinting">
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${fcBool fontconfig.hinting.enable}
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</edit>
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<edit mode="assign" name="autohint">
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${fcBool fontconfig.hinting.autohint}
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</edit>
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<edit mode="assign" name="hintstyle">
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<const>hint${fontconfig.hinting.style}</const>
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</edit>
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<edit mode="assign" name="antialias">
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${fcBool fontconfig.antialias}
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</edit>
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<edit mode="assign" name="rgba">
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<const>${fontconfig.subpixel.rgba}</const>
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</edit>
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<edit mode="assign" name="lcdfilter">
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<const>lcd${fontconfig.subpixel.lcdfilter}</const>
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</edit>
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</match>
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${optionalString (fontconfig.dpi != 0) ''
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<match target="pattern">
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<edit name="dpi" mode="assign">
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<double>${toString fontconfig.dpi}</double>
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</edit>
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</match>
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''}
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</fontconfig>
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'';
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genericAliasConf = ''
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<?xml version='1.0'?>
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<!DOCTYPE fontconfig SYSTEM 'fonts.dtd'>
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<fontconfig>
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<!-- Default fonts -->
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${optionalString (fontconfig.defaultFonts.sansSerif != []) ''
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<alias>
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<family>sans-serif</family>
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<prefer>
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${concatStringsSep "\n"
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(map (font: "<family>${font}</family>")
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fontconfig.defaultFonts.sansSerif)}
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</prefer>
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</alias>
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''}
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${optionalString (fontconfig.defaultFonts.serif != []) ''
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<alias>
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<family>serif</family>
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<prefer>
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${concatStringsSep "\n"
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(map (font: "<family>${font}</family>")
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fontconfig.defaultFonts.serif)}
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</prefer>
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</alias>
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''}
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${optionalString (fontconfig.defaultFonts.monospace != []) ''
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<alias>
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<family>monospace</family>
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<prefer>
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${concatStringsSep "\n"
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(map (font: "<family>${font}</family>")
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fontconfig.defaultFonts.monospace)}
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</prefer>
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</alias>
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''}
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</fontconfig>
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'';
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in mkIf fontconfig.enable {
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# Fontconfig 2.10 backward compatibility
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# Bring in the default (upstream) fontconfig configuration, only for fontconfig 2.10
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environment.etc."fonts/fonts.conf".source =
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pkgs.makeFontsConf { fontconfig = pkgs.fontconfig_210; fontDirectories = config.fonts.fonts; };
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environment.etc."fonts/conf.d/10-nixos-rendering.conf".text = renderConf;
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environment.etc."fonts/conf.d/60-nixos-generic-alias.conf".text = genericAliasConf;
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# Versioned fontconfig > 2.10. Take shared fonts.conf from fontconfig.
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# Otherwise specify only font directories.
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environment.etc."fonts/${pkgs.fontconfig.configVersion}/fonts.conf".source =
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"${pkgs.fontconfig.out}/etc/fonts/fonts.conf";
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environment.etc."fonts/${pkgs.fontconfig.configVersion}/conf.d/00-nixos.conf".text =
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let
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cache = fontconfig: pkgs.makeFontsCache { inherit fontconfig; fontDirectories = config.fonts.fonts; };
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in ''
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<?xml version='1.0'?>
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<!DOCTYPE fontconfig SYSTEM 'fonts.dtd'>
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<fontconfig>
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<!-- Font directories -->
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${concatStringsSep "\n" (map (font: "<dir>${font}</dir>") config.fonts.fonts)}
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<!-- Pre-generated font caches -->
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<cachedir>${cache pkgs.fontconfig}</cachedir>
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${optionalString (pkgs.stdenv.isx86_64 && config.fonts.fontconfig.cache32Bit) ''
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<cachedir>${cache pkgs.pkgsi686Linux.fontconfig}</cachedir>
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''}
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</fontconfig>
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'';
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environment.etc."fonts/${pkgs.fontconfig.configVersion}/conf.d/10-nixos-rendering.conf".text = renderConf;
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environment.etc."fonts/${pkgs.fontconfig.configVersion}/conf.d/60-nixos-generic-alias.conf".text = genericAliasConf;
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environment.etc."fonts/${pkgs.fontconfig.configVersion}/conf.d/99-user.conf" = {
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enable = fontconfig.includeUserConf;
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text = ''
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<?xml version="1.0"?>
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<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
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<fontconfig>
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<include ignore_missing="yes" prefix="xdg">fontconfig/conf.d</include>
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<include ignore_missing="yes" prefix="xdg">fontconfig/fonts.conf</include>
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</fontconfig>
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'';
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};
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environment.systemPackages = [ pkgs.fontconfig ];
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};
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}
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