initial flatpak module

2022-08-07 20:27:57 +02:00
parent 95e62d8525
commit d3961395d6
3 changed files with 122 additions and 34 deletions
--- a/home/modules/flatpak.nix
+++ b/home/modules/flatpak.nix
@ -0,0 +1,98 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.modules.flatpak;
+in {
+  imports = [ ];
+
+  options.modules.flatpak = {
+    enable = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Enable flatpak support";
+    };
+
+    fontFix = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Link fonts to ~/.local/share/fonts so flatpak apps can find them";
+    };
+
+    iconFix = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Link icons to ~/.local/share/icons so flatpak apps can find them";
+    };
+
+    packages = mkOption {
+      type = types.listOf types.string;
+      default = [ ];
+      description = "List of enabled flatpaks";
+    };
+
+    autoInstall = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Install enabled flatpaks on nixos-rebuild";
+    };
+
+    autoUpdate = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Update flatpak apps on nixos-rebuild";
+    };
+  };
+
+  config = mkIf cfg.enable {
+
+    services.flatpak.enable = true;
+
+    # NOTE: Is already set by flatpak.enable in configuration.nix
+    # xdg.systemDirs.data = [
+    #   "/var/lib/flatpak/exports/share"
+    #   "${home.homeDirectory}/.local/share/flatpak/exports/share"
+    # ];
+
+    home.activation = (mkMerge [
+      (mkIf cfg.fontFix {
+        # We link like this to be able to address the absolute location, also the fonts won't get copied to store
+        # NOTE: This path contains all the fonts because fonts.fontDir.enable is true
+        linkFontDir = lib.hm.dag.entryAfter [ "writeBoundary" ] ''
+          if [ ! -L "${home.homeDirectory}/.local/share/fonts" ]; then
+            ln -sf /run/current-system/sw/share/X11/fonts ${home.homeDirectory}/.local/share/fonts
+          fi
+        '';
+      })
+
+      (mkIf cfg.iconFix {
+        # NOTE: This path works because we have homeManager.useUserPackages = true (everything is stored in /etc/profiles/)
+        linkIconDir = lib.hm.dag.entryAfter [ "writeBoundary" ] ''
+          if [ ! -L "${home.homeDirectory}/.local/share/icons" ]; then
+            ln -sf /etc/profiles/per-user/christoph/share/icons ${home.homeDirectory}/.local/share/icons
+          fi
+        '';
+      })
+
+      (mkIf cfg.autoInstall {
+        installFlatpak = lib.hm.dag.entryAfter [ "writeBoundary" ] ''
+          flatpak install -y ${builtins.concatStringsSep " " cfg.packages}
+        '';
+      })
+
+      (mkIf cfg.autoUpdate {
+        updateFlatpak = lib.hm.dag.entryAfter [ "writeBoundary" ] ''
+          flatpak update -y
+        '';
+      })
+    ]);
+
+    # TODO: Add option for extra overrides and concatenate this string together
+    # Allow access to linked fonts/icons
+    home.file.".local/share/flatpak/overrides/global".text = ''
+      [Context]
+      filesystems=/run/current-system/sw/share/X11/fonts:ro;/run/current-system/sw/share/icons:ro;/nix/store:ro
+    '';
+  };
+}