diff options
Diffstat (limited to 'nixos/modules/services/x11/gdk-pixbuf.nix')
-rw-r--r-- | nixos/modules/services/x11/gdk-pixbuf.nix | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/nixos/modules/services/x11/gdk-pixbuf.nix b/nixos/modules/services/x11/gdk-pixbuf.nix new file mode 100644 index 00000000000..3fd6fed91e1 --- /dev/null +++ b/nixos/modules/services/x11/gdk-pixbuf.nix @@ -0,0 +1,45 @@ +{ config, lib, pkgs, ... }: + +with lib; + +let + cfg = config.services.xserver.gdk-pixbuf; + + # Get packages to generate the cache for. We always include gdk-pixbuf. + effectivePackages = unique ([pkgs.gdk-pixbuf] ++ cfg.modulePackages); + + # Generate the cache file by running gdk-pixbuf-query-loaders for each + # package and concatenating the results. + loadersCache = pkgs.runCommand "gdk-pixbuf-loaders.cache" { preferLocalBuild = true; } '' + ( + for package in ${concatStringsSep " " effectivePackages}; do + module_dir="$package/${pkgs.gdk-pixbuf.moduleDir}" + if [[ ! -d $module_dir ]]; then + echo "Warning (services.xserver.gdk-pixbuf): missing module directory $module_dir" 1>&2 + continue + fi + GDK_PIXBUF_MODULEDIR="$module_dir" \ + ${pkgs.stdenv.hostPlatform.emulator pkgs.buildPackages} ${pkgs.gdk-pixbuf.dev}/bin/gdk-pixbuf-query-loaders + done + ) > "$out" + ''; +in + +{ + options = { + services.xserver.gdk-pixbuf.modulePackages = mkOption { + type = types.listOf types.package; + default = [ ]; + description = "Packages providing GDK-Pixbuf modules, for cache generation."; + }; + }; + + # If there is any package configured in modulePackages, we generate the + # loaders.cache based on that and set the environment variable + # GDK_PIXBUF_MODULE_FILE to point to it. + config = mkIf (cfg.modulePackages != []) { + environment.variables = { + GDK_PIXBUF_MODULE_FILE = "${loadersCache}"; + }; + }; +} |