nerdfonts: separate into individual packages under namespace nerd-fonts

nixos/doc/manual/release-notes/rl-2411.section.md

@@ -711,6 +711,12 @@
 - `python3Packages.nose` has been removed, as it has been deprecated and unmaintained for almost a decade and does not work on Python 3.12.
   Please switch to `pytest` or another test runner/framework.
 
+- `nerdfonts` has been separated into individual font packages under the namespace `nerd-fonts`.
+  The directories for font files have changed from `$out/share/fonts/{opentype,truetype}/NerdFonts`
+  to `$out/share/fonts/{opentype,truetype}/<fontDirName>`, where `<fontDirName>` can be found in
+  the upstream [`fonts.json`](https://github.com/ryanoasis/nerd-fonts/blob/master/bin/scripts/lib/fonts.json)
+  as the `patchedName` properties, with whitespaces (if any) trimmed.
+
 ## Other Notable Changes {#sec-release-24.11-notable-changes}
 
 <!-- To avoid merge conflicts, consider adding your item at an arbitrary place in the list instead. -->

pkgs/applications/terminal-emulators/kitty/default.nix

@@ -2,7 +2,7 @@
 , harfbuzz, fontconfig, pkg-config, ncurses, imagemagick
 , libstartup_notification, libGL, libX11, libXrandr, libXinerama, libXcursor
 , libxkbcommon, libXi, libXext, wayland-protocols, wayland, xxHash
-, nerdfonts
+, nerd-fonts
 , lcms2
 , librsync
 , openssl
@@ -140,7 +140,7 @@ buildPythonApplication rec {
 
     # Add the font by hand because fontconfig does not finds it in darwin
     mkdir ./fonts/
-    cp "${(nerdfonts.override {fonts = ["NerdFontsSymbolsOnly"];})}/share/fonts/truetype/NerdFonts/SymbolsNerdFontMono-Regular.ttf" ./fonts/
+    cp "${nerd-fonts.symbols-only}/share/fonts/truetype/Symbols/SymbolsNerdFontMono-Regular.ttf" ./fonts/
 
     ${ lib.optionalString (stdenv.hostPlatform.isDarwin && stdenv.hostPlatform.isx86_64) "export MACOSX_DEPLOYMENT_TARGET=11" }
     ${if stdenv.hostPlatform.isDarwin then ''

pkgs/data/fonts/nerd-fonts/default.nix

@@ -0,0 +1,64 @@
+{
+  lib,
+  stdenvNoCC,
+  fetchzip,
+}:
+
+let
+  releaseVersion = lib.trivial.importJSON ./release-version.json;
+  makeNerdFont =
+    {
+      pname,
+      dirName,
+      originalName,
+      declaresRFN,
+      version,
+      longDescription,
+      license,
+      url,
+      sha256,
+      ...
+    }:
+    stdenvNoCC.mkDerivation {
+      inherit pname version;
+
+      src = fetchzip {
+        inherit url sha256;
+        stripRoot = false;
+      };
+
+      installPhase = ''
+        runHook preInstall
+
+        dst_opentype=$out/share/fonts/opentype/${dirName}
+        dst_truetype=$out/share/fonts/truetype/${dirName}
+
+        find -name \*.otf -exec mkdir -p $dst_opentype \; -exec cp -p {} $dst_opentype \;
+        find -name \*.ttf -exec mkdir -p $dst_truetype \; -exec cp -p {} $dst_truetype \;
+
+        runHook postInstall
+      '';
+
+      passthru = {
+        updateScript = ./update.sh;
+        inherit originalName declaresRFN;
+      };
+
+      meta = {
+        inherit longDescription license;
+        homepage = "https://nerdfonts.com/";
+        changelog = "https://github.com/ryanoasis/nerd-fonts/blob/v${releaseVersion}/changelog.md";
+        platforms = lib.platforms.all;
+        maintainers = with lib.maintainers; [
+          doronbehar
+          rc-zb
+        ];
+      };
+    };
+in
+
+builtins.listToAttrs (
+  map (font: lib.attrsets.nameValuePair font.attrName (makeNerdFont font)) (
+    lib.trivial.importJSON ./fonts.json
+  )
+)