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path: root/home-modules/lmu-hausschrift/default.nix
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{ config, pkgs, lib, ... }:

with lib;

{
  options = {
    fonts.lmu-hausschrift.enable = mkEnableOption "LMU Hausschrift";
  };

  config = mkIf config.fonts.lmu-hausschrift.enable {
    sops.secrets."lmu-hausschrift.tar.zstd" = {
      format = "binary";
      sopsFile = ./lmu-hausschrift.tar.zstd;
    };

    xdg.configFile = {
      "fontconfig/conf.d/20-lmu-hausschrift.conf".text = ''
        <?xml version='1.0'?>

        <!DOCTYPE fontconfig SYSTEM 'urn:fontconfig:fonts.dtd'>
        <fontconfig>
          <dir>${config.home.homeDirectory}/.local/share/lmu-hausschrift</dir>
        </fontconfig>
      '';
    };

    systemd.user.services.unpack-lmu-hausschrift = {
      Unit = {
        ConditionPathExists = [
          "!%h/.local/share/lmu-hausschrift"
          "!%t/lmu-hausschrift"
        ];
      };
      Unit = {
        After = ["sops-nix.service"];
      };
      Install = {
        WantedBy = ["sops-nix.service"];
      };
      Service = {
        UMask = "07077";
        Environment = [
          "PATH=${lib.makeBinPath (with pkgs; [gnutar coreutils])}"
        ];
        ExecStart = pkgs.writeShellScript "unpack-lmu-hausschrift.sh" ''
          set -xe

          out=''${XDG_RUNTIME_DIR:-/tmp}/lmu-hausschrift
          src="${config.sops.secrets."lmu-hausschrift.tar.zstd".path}"
          if [[ "$src" =~ ^%r ]]; then
            src=''${src#"%r/"}
            src=''${XDG_RUNTIME_DIR:-/tmp}/"''${src}"
          fi

          mkdir -p "''${out}"
          tar -xaf "''${src}" -C "''${out}"
          ln -sfT "''${out}" "${config.home.homeDirectory}/.local/share/lmu-hausschrift"
        '';
      };
    };
  };
}