4ee3e8b21d
A centralized list for these renames is not good because: - It breaks disabledModules for modules that have a rename defined - Adding/removing renames for a module means having to find them in the central file - Merge conflicts due to multiple people editing the central file
487 lines
16 KiB
Nix
487 lines
16 KiB
Nix
/*
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NixOS support 2 fontconfig versions, "support" and "latest".
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- "latest" refers to default fontconfig package (pkgs.fontconfig).
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configuration files are linked to /etc/fonts/VERSION/conf.d/
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- "support" refers to supportPkg (pkgs."fontconfig_${supportVersion}").
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configuration files are linked to /etc/fonts/conf.d/
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This module generates a package containing configuration files and link it in /etc/fonts.
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Fontconfig reads files in folder name / file name order, so the number prepended to the configuration file name decide the order of parsing.
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Low number means high priority.
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*/
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{ config, pkgs, lib, ... }:
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with lib;
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let
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cfg = config.fonts.fontconfig;
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fcBool = x: "<bool>" + (boolToString x) + "</bool>";
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# back-supported fontconfig version and package
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# version is used for font cache generation
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supportVersion = "210";
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supportPkg = pkgs."fontconfig_${supportVersion}";
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# latest fontconfig version and package
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# version is used for configuration folder name, /etc/fonts/VERSION/
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# note: format differs from supportVersion and can not be used with makeCacheConf
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latestVersion = pkgs.fontconfig.configVersion;
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latestPkg = pkgs.fontconfig;
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# supported version fonts.conf
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supportFontsConf = pkgs.makeFontsConf { fontconfig = supportPkg; fontDirectories = config.fonts.fonts; };
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# configuration file to read fontconfig cache
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# version dependent
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# priority 0
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cacheConfSupport = makeCacheConf { version = supportVersion; };
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cacheConfLatest = makeCacheConf {};
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# generate the font cache setting file for a fontconfig version
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# use latest when no version is passed
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makeCacheConf = { version ? null }:
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let
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fcPackage = if version == null
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then "fontconfig"
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else "fontconfig_${version}";
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makeCache = fontconfig: pkgs.makeFontsCache { inherit fontconfig; fontDirectories = config.fonts.fonts; };
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cache = makeCache pkgs.${fcPackage};
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cache32 = makeCache pkgs.pkgsi686Linux.${fcPackage};
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in
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pkgs.writeText "fc-00-nixos-cache.conf" ''
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<?xml version='1.0'?>
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<!DOCTYPE fontconfig SYSTEM 'fonts.dtd'>
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<fontconfig>
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<!-- Font directories -->
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${concatStringsSep "\n" (map (font: "<dir>${font}</dir>") config.fonts.fonts)}
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<!-- Pre-generated font caches -->
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<cachedir>${cache}</cachedir>
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${optionalString (pkgs.stdenv.isx86_64 && cfg.cache32Bit) ''
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<cachedir>${cache32}</cachedir>
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''}
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</fontconfig>
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'';
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# rendering settings configuration file
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# priority 10
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renderConf = pkgs.writeText "fc-10-nixos-rendering.conf" ''
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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="pattern">
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<edit mode="append" name="hinting">
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${fcBool cfg.hinting.enable}
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</edit>
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<edit mode="append" name="autohint">
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${fcBool cfg.hinting.autohint}
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</edit>
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<edit mode="append" name="hintstyle">
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<const>hintslight</const>
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</edit>
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<edit mode="append" name="antialias">
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${fcBool cfg.antialias}
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</edit>
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<edit mode="append" name="rgba">
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<const>${cfg.subpixel.rgba}</const>
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</edit>
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<edit mode="append" name="lcdfilter">
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<const>lcd${cfg.subpixel.lcdfilter}</const>
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</edit>
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</match>
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${optionalString (cfg.dpi != 0) ''
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<match target="pattern">
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<edit name="dpi" mode="assign">
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<double>${toString cfg.dpi}</double>
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</edit>
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</match>
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''}
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</fontconfig>
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'';
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# local configuration file
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localConf = pkgs.writeText "fc-local.conf" cfg.localConf;
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# default fonts configuration file
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# priority 52
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defaultFontsConf =
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let genDefault = fonts: name:
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optionalString (fonts != []) ''
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<alias binding="same">
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<family>${name}</family>
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<prefer>
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${concatStringsSep ""
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(map (font: ''
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<family>${font}</family>
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'') fonts)}
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</prefer>
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</alias>
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'';
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in
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pkgs.writeText "fc-52-nixos-default-fonts.conf" ''
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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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${genDefault cfg.defaultFonts.sansSerif "sans-serif"}
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${genDefault cfg.defaultFonts.serif "serif"}
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${genDefault cfg.defaultFonts.monospace "monospace"}
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${genDefault cfg.defaultFonts.emoji "emoji"}
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</fontconfig>
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'';
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# bitmap font options
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# priority 53
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rejectBitmaps = pkgs.writeText "fc-53-no-bitmaps.conf" ''
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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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${optionalString (!cfg.allowBitmaps) ''
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<!-- Reject bitmap fonts -->
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<selectfont>
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<rejectfont>
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<pattern>
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<patelt name="scalable"><bool>false</bool></patelt>
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</pattern>
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</rejectfont>
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</selectfont>
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''}
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<!-- Use embedded bitmaps in fonts like Calibri? -->
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<match target="font">
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<edit name="embeddedbitmap" mode="assign">
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${fcBool cfg.useEmbeddedBitmaps}
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</edit>
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</match>
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</fontconfig>
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'';
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# reject Type 1 fonts
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# priority 53
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rejectType1 = pkgs.writeText "fc-53-nixos-reject-type1.conf" ''
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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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<!-- Reject Type 1 fonts -->
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<selectfont>
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<rejectfont>
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<pattern>
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<patelt name="fontformat"><string>Type 1</string></patelt>
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</pattern>
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</rejectfont>
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</selectfont>
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</fontconfig>
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'';
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# fontconfig configuration package
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confPkg = pkgs.runCommand "fontconfig-conf" {
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preferLocalBuild = true;
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} ''
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support_folder=$out/etc/fonts/conf.d
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latest_folder=$out/etc/fonts/${latestVersion}/conf.d
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mkdir -p $support_folder
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mkdir -p $latest_folder
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# fonts.conf
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ln -s ${supportFontsConf} $support_folder/../fonts.conf
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ln -s ${latestPkg.out}/etc/fonts/fonts.conf \
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$latest_folder/../fonts.conf
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# fontconfig default config files
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ln -s ${supportPkg.out}/etc/fonts/conf.d/*.conf \
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$support_folder/
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ln -s ${latestPkg.out}/etc/fonts/conf.d/*.conf \
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$latest_folder/
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# update latest 51-local.conf path to look at the latest local.conf
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rm $latest_folder/51-local.conf
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substitute ${latestPkg.out}/etc/fonts/conf.d/51-local.conf \
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$latest_folder/51-local.conf \
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--replace local.conf /etc/fonts/${latestVersion}/local.conf
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# 00-nixos-cache.conf
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ln -s ${cacheConfSupport} \
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$support_folder/00-nixos-cache.conf
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ln -s ${cacheConfLatest} $latest_folder/00-nixos-cache.conf
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# 10-nixos-rendering.conf
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ln -s ${renderConf} $support_folder/10-nixos-rendering.conf
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ln -s ${renderConf} $latest_folder/10-nixos-rendering.conf
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# 50-user.conf
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${optionalString (!cfg.includeUserConf) ''
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rm $support_folder/50-user.conf
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rm $latest_folder/50-user.conf
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''}
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# local.conf (indirect priority 51)
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${optionalString (cfg.localConf != "") ''
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ln -s ${localConf} $support_folder/../local.conf
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ln -s ${localConf} $latest_folder/../local.conf
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''}
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# 52-nixos-default-fonts.conf
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ln -s ${defaultFontsConf} $support_folder/52-nixos-default-fonts.conf
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ln -s ${defaultFontsConf} $latest_folder/52-nixos-default-fonts.conf
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# 53-no-bitmaps.conf
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ln -s ${rejectBitmaps} $support_folder/53-no-bitmaps.conf
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ln -s ${rejectBitmaps} $latest_folder/53-no-bitmaps.conf
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${optionalString (!cfg.allowType1) ''
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# 53-nixos-reject-type1.conf
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ln -s ${rejectType1} $support_folder/53-nixos-reject-type1.conf
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ln -s ${rejectType1} $latest_folder/53-nixos-reject-type1.conf
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''}
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'';
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# Package with configuration files
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# this merge all the packages in the fonts.fontconfig.confPackages list
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fontconfigEtc = pkgs.buildEnv {
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name = "fontconfig-etc";
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paths = cfg.confPackages;
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ignoreCollisions = true;
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};
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in
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{
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imports = [
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(mkRenamedOptionModule [ "fonts" "fontconfig" "ultimate" "allowBitmaps" ] [ "fonts" "fontconfig" "allowBitmaps" ])
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(mkRenamedOptionModule [ "fonts" "fontconfig" "ultimate" "allowType1" ] [ "fonts" "fontconfig" "allowType1" ])
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(mkRenamedOptionModule [ "fonts" "fontconfig" "ultimate" "useEmbeddedBitmaps" ] [ "fonts" "fontconfig" "useEmbeddedBitmaps" ])
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(mkRenamedOptionModule [ "fonts" "fontconfig" "ultimate" "forceAutohint" ] [ "fonts" "fontconfig" "forceAutohint" ])
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(mkRenamedOptionModule [ "fonts" "fontconfig" "ultimate" "renderMonoTTFAsBitmap" ] [ "fonts" "fontconfig" "renderMonoTTFAsBitmap" ])
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(mkRemovedOptionModule [ "fonts" "fontconfig" "hinting" "style" ] "")
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(mkRemovedOptionModule [ "fonts" "fontconfig" "forceAutohint" ] "")
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(mkRemovedOptionModule [ "fonts" "fontconfig" "renderMonoTTFAsBitmap" ] "")
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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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confPackages = mkOption {
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internal = true;
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type = with types; listOf path;
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default = [ ];
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description = ''
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Fontconfig configuration packages.
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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 = ''
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Enable font antialiasing. At high resolution (> 200 DPI),
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antialiasing has no visible effect; users of such displays may want
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to disable this option.
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'';
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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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localConf = mkOption {
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type = types.lines;
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default = "";
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description = ''
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System-wide customization file contents, has higher priority than
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<literal>defaultFonts</literal> settings.
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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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emoji = mkOption {
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type = types.listOf types.str;
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default = ["Noto Color Emoji"];
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description = ''
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System-wide default emoji font(s). Multiple fonts may be listed
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in case a font does not support all emoji.
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Note that fontconfig matches color emoji fonts preferentially,
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so if you want to use a black and white font while having
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a color font installed (eg. Noto Color Emoji installed alongside
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Noto Emoji), fontconfig will still choose the color font even
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when it is later in the list.
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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 = ''
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Enable font hinting. Hinting aligns glyphs to pixel boundaries to
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improve rendering sharpness at low resolution. At high resolution
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(> 200 dpi) hinting will do nothing (at best); users of such
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displays may want to disable this option.
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'';
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};
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autohint = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Enable the autohinter in place of the default interpreter.
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The results are usually lower quality than correctly-hinted
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fonts, but better than unhinted fonts.
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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. The overwhelming majority of displays are
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<literal>rgb</literal> in their normal orientation. Select
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<literal>vrgb</literal> for mounting such a display 90 degrees
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clockwise from its normal orientation or <literal>vbgr</literal>
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for mounting 90 degrees counter-clockwise. Select
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<literal>bgr</literal> in the unlikely event of mounting 180
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degrees from the normal orientation. Reverse these directions in
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the improbable event that the display's native subpixel order is
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<literal>bgr</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. At high resolution (> 200 DPI), LCD filtering
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has no visible effect; users of such displays may want to select
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<literal>none</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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allowBitmaps = mkOption {
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type = types.bool;
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default = true;
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description = ''
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Allow bitmap fonts. Set to <literal>false</literal> to ban all
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bitmap fonts.
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'';
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};
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allowType1 = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Allow Type-1 fonts. Default is <literal>false</literal> because of
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poor rendering.
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'';
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};
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useEmbeddedBitmaps = mkOption {
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type = types.bool;
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default = false;
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description = ''Use embedded bitmaps in fonts like Calibri.'';
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};
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};
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};
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};
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config = mkMerge [
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(mkIf cfg.enable {
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environment.systemPackages = [ pkgs.fontconfig ];
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environment.etc.fonts.source = "${fontconfigEtc}/etc/fonts/";
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})
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(mkIf (cfg.enable && !cfg.penultimate.enable) {
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fonts.fontconfig.confPackages = [ confPkg ];
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})
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];
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}
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