iosevka-comfy: pin iosevka

Pins the version of iosevka used to build iosevka-comfy to the commit
listed on iosevka-comfy's README. Other iosevka versions may have
breaking changes or stylistic regressions.

pkgs/data/fonts/iosevka/comfy.nix

@@ -1,4 +1,4 @@
-{ callPackage, lib, fetchFromSourcehut }:
+{ lib, iosevka, fetchFromSourcehut, fetchFromGitHub, buildNpmPackage }:
 
 let
   sets = [
@@ -23,25 +23,40 @@ let
     sha256 = "1h72my1s9pvxww6yijrvhy7hj9dspnshya60i60p1wlzr6d18v3p";
   };
   privateBuildPlan = src.outPath + "/private-build-plans.toml";
-  overrideAttrs = (attrs: {
-    inherit version;
-
-    meta = with lib; {
-      inherit (src.meta) homepage;
-      description = ''
-        Customised build of the Iosevka typeface, with a consistent
-        rounded style and overrides for almost all individual glyphs
-        in both roman (upright) and italic (slanted) variants.
-      '';
-      license = licenses.ofl;
-      platforms = attrs.meta.platforms;
-      maintainers = [ maintainers.DamienCassou ];
-    };
-  });
   makeIosevkaFont = set:
-    (callPackage ./. { inherit set privateBuildPlan; }).overrideAttrs
-    overrideAttrs;
-in builtins.listToAttrs (builtins.map (set: {
-  name = set;
-  value = makeIosevkaFont set;
-}) sets)
+    let superBuildNpmPackage = buildNpmPackage; in
+    (iosevka.override rec {
+      inherit set privateBuildPlan;
+      buildNpmPackage = args: superBuildNpmPackage
+        (args // {
+          inherit version;
+
+          src = fetchFromGitHub {
+            owner = "be5invis";
+            repo = "iosevka";
+            rev = "ad1e247a3fb8d2e2561122e8e57dcdc86a23df77";
+            hash = "sha256-sfItIMl9HOUykoZPsNKRGKwgkSWvNGUe3czHE8qFG5w=";
+          };
+
+          npmDepsHash = "sha256-HaO2q1f+hX3LjccuVCQaqQZCdUH9r7+jiFOR+3m8Suw=";
+
+          meta = with lib; {
+            inherit (src.meta) homepage;
+            description = ''
+              Customised build of the Iosevka typeface, with a consistent
+              rounded style and overrides for almost all individual glyphs
+              in both roman (upright) and italic (slanted) variants.
+            '';
+            license = licenses.ofl;
+            platforms = iosevka.meta.platforms;
+            maintainers = [ maintainers.DamienCassou ];
+          };
+        });
+    });
+in
+builtins.listToAttrs (builtins.map
+  (set: {
+    name = set;
+    value = makeIosevkaFont set;
+  })
+  sets)