646b892680
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49 lines
1.2 KiB
Nix
49 lines
1.2 KiB
Nix
{
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buildPackages,
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fontconfig,
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lib,
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runCommand,
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stdenv,
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}:
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let
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fontconfig' = fontconfig;
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in
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{
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fontconfig ? fontconfig',
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fontDirectories,
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}:
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runCommand "fc-cache"
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{
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preferLocalBuild = true;
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allowSubstitutes = false;
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passAsFile = [ "fontDirs" ];
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fontDirs = ''
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<!-- Font directories -->
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${lib.concatStringsSep "\n" (map (font: "<dir>${font}</dir>") fontDirectories)}
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'';
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}
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''
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export FONTCONFIG_FILE=$(pwd)/fonts.conf
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cat > fonts.conf << EOF
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<?xml version='1.0'?>
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<!DOCTYPE fontconfig SYSTEM 'urn:fontconfig:fonts.dtd'>
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<fontconfig>
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<include>${fontconfig.out}/etc/fonts/fonts.conf</include>
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<cachedir>$out</cachedir>
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EOF
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cat "$fontDirsPath" >> fonts.conf
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echo "</fontconfig>" >> fonts.conf
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# N.B.: fc-cache keys its cache entries by architecture.
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# We must invoke the host `fc-cache` (not the build fontconfig) if we want
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# the cache to be usable by the host.
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mkdir -p $out
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${stdenv.hostPlatform.emulator buildPackages} ${lib.getExe' fontconfig "fc-cache"} -sv
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# This is not a cache dir in the normal sense -- it won't be automatically
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# recreated.
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rm -f "$out/CACHEDIR.TAG"
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''
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