nixos/plymouth: Include label module and fonts

To show text, Plymouth needs the label plugin. We also copy in both
Cantarell and DejaVu Sans, as these are used by the default Plymouth
themes.

nixos/modules/system/boot/plymouth.nix

@@ -111,7 +111,7 @@ in
 
       mkdir -p $out/lib/plymouth/renderers
       # module might come from a theme
-      cp ${themesEnv}/lib/plymouth/{text,details,$moduleName}.so $out/lib/plymouth
+      cp ${themesEnv}/lib/plymouth/{text,details,label,$moduleName}.so $out/lib/plymouth
       cp ${plymouth}/lib/plymouth/renderers/{drm,frame-buffer}.so $out/lib/plymouth/renderers
 
       mkdir -p $out/share/plymouth/themes
@@ -120,7 +120,7 @@ in
       # copy themes into working directory for patching
       mkdir themes
       # use -L to copy the directories proper, not the symlinks to them
-      cp -r -L ${themesEnv}/share/plymouth/themes/{text,details,${cfg.theme}} themes
+      cp -r -L ${themesEnv}/share/plymouth/themes/{text,details,spinner,${cfg.theme}} themes
 
       # patch out any attempted references to the theme or plymouth's themes directory
       chmod -R +w themes
@@ -131,6 +131,15 @@ in
 
       cp -r themes/* $out/share/plymouth/themes
       cp ${cfg.logo} $out/share/plymouth/logo.png
+
+      mkdir -p $out/usr/share/fonts/truetype
+      mkdir -p $out/etc/fonts/2.11/conf.d
+      cp -r ${pkgs.cantarell-fonts}/share/fonts/cantarell/Cantarell-{Thin,Regular}.otf $out/usr/share/fonts/truetype
+      cp -r ${pkgs.dejavu_fonts.minimal}/share/fonts/truetype/DejaVuSans.ttf $out/usr/share/fonts/truetype
+
+      cp ${pkgs.fontconfig.out}/share/fontconfig/conf.avail/60-latin.conf $out/etc/fonts/2.11/conf.d
+      cp ${pkgs.fontconfig.out}/etc/fonts/fonts.conf $out/etc/fonts/2.11
+      sed -i 's@<dir>${pkgs.dejavu_fonts.minimal}</dir>@<dir>/usr/share/fonts</dir>@g' $out/etc/fonts/2.11/fonts.conf
     '';
 
     boot.initrd.extraUtilsCommandsTest = ''
@@ -144,12 +153,14 @@ in
     '';
 
     boot.initrd.preLogCommands = ''
-      mkdir -p /etc/plymouth
+      mkdir -p /etc/plymouth /usr/share
       ln -s ${configFile} /etc/plymouth/plymouthd.conf
       ln -s $extraUtils/share/plymouth/plymouthd.defaults /etc/plymouth/plymouthd.defaults
       ln -s $extraUtils/share/plymouth/logo.png /etc/plymouth/logo.png
       ln -s $extraUtils/share/plymouth/themes /etc/plymouth/themes
       ln -s $extraUtils/lib/plymouth /etc/plymouth/plugins
+      ln -s $extraUtils/etc/fonts /etc/fonts
+      ln -s $extraUtils/usr/share/fonts /usr/share/fonts
 
       plymouthd --mode=boot --pid-file=/run/plymouth/pid --attach-to-session
       plymouth show-splash