breeze-plymouth: allow usage of custom logo

1 files changed, 24 insertions, 19 deletions

diff --git a/pkgs/desktops/plasma-5/breeze-plymouth/default.nix b/pkgs/desktops/plasma-5/breeze-plymouth/default.nix
index 48b038325fec..5b6abddbcda3 100644
--- a/pkgs/desktops/plasma-5/breeze-plymouth/default.nix
+++ b/pkgs/desktops/plasma-5/breeze-plymouth/default.nix
@@ -8,37 +8,42 @@
   imagemagick,
   netpbm,
   perl,
-  # these will typically need to be set via an override
-  # in a NixOS context
-  nixosBranding ? false,
-  nixosName ? "NixOS",
-  nixosVersion ? "",
+  logoName ? null,
+  logoFile ? null,
+  osName ? null,
+  osVersion ? null,
   topColor ? "black",
   bottomColor ? "black"
 }:
 
-let
-  logoName = "nixos";
+let 
+  validColors = [ "black" "cardboard_grey" "charcoal_grey" "icon_blue" "paper_white" "plasma_blue" "neon_blue" "neon_green" ];
+  resolvedLogoName = if (logoFile != null && logoName == null) then lib.strings.removeSuffix ".png" (baseNameOf(toString logoFile)) else logoName;
 in
+  assert lib.asserts.assertOneOf "topColor" topColor validColors;
+  assert lib.asserts.assertOneOf "bottomColor" bottomColor validColors;
+  
+
 mkDerivation {
   name = "breeze-plymouth";
   nativeBuildInputs = [ extra-cmake-modules ];
-  buildInputs = [ plymouth ] ++ lib.optionals nixosBranding [ imagemagick netpbm perl ];
+  buildInputs = [ plymouth ] ++ lib.optionals (logoFile != null) [ imagemagick netpbm perl ];
   patches = copyPathsToStore (lib.readPathsFromFile ./. ./series);
-  cmakeFlags = lib.optionals nixosBranding [
-    "-DDISTRO_NAME=${nixosName}"
-    "-DDISTRO_VERSION=${nixosVersion}"
-    "-DDISTRO_LOGO=${logoName}"
-    "-DBACKGROUND_TOP_COLOR=${topColor}"
-    "-DBACKGROUND_BOTTOM_COLOR=${bottomColor}"
-  ];
+  cmakeFlags = []
+    ++ lib.optional (osName      != null) "-DDISTRO_NAME=${osName}"
+    ++ lib.optional (osVersion   != null) "-DDISTRO_VERSION=${osVersion}"
+    ++ lib.optional (logoName    != null) "-DDISTRO_LOGO=${logoName}"
+    ++ lib.optional (topColor    != null) "-DBACKGROUND_TOP_COLOR=${topColor}"
+    ++ lib.optional (bottomColor != null) "-DBACKGROUND_BOTTOM_COLOR=${bottomColor}"
+  ;
+  
   postPatch = ''
       substituteInPlace cmake/FindPlymouth.cmake --subst-var out
-  '' + lib.optionalString nixosBranding ''
-      cp ${nixos-icons}/share/icons/hicolor/128x128/apps/nix-snowflake.png breeze/images/${logoName}.logo.png
+  '' + lib.optionalString (logoFile != null) ''
+      cp ${logoFile} breeze/images/${resolvedLogoName}.logo.png
 
       # conversion for 16bit taken from the breeze-plymouth readme
-      convert ${nixos-icons}/share/icons/hicolor/128x128/apps/nix-snowflake.png -alpha Background -background "#000000" -fill "#000000" -flatten tmp.png
-      pngtopnm tmp.png | pnmquant 16 | pnmtopng > breeze/images/16bit/${logoName}.logo.png
+      convert ${logoFile} -alpha Background -background "#000000" -fill "#000000" -flatten tmp.png
+      pngtopnm tmp.png | pnmquant 16 | pnmtopng > breeze/images/16bit/${resolvedLogoName}.logo.png
   '';
 }