fix: pin iosevka to avoid oomkilling machines as often during nixpkgs upgrades

packages/default.nix

@@ -3,6 +3,8 @@ let
   iosevkaLyteTerm = pkgs.callPackage ./iosevkaLyteTerm.nix { };
 in
 {
+  iosevka = pkgs.callPackage ./iosevka.nix { };
+
   inherit iosevkaLyteTerm;
 
   iosevkaLyteTermSubset = pkgs.callPackage ./iosevkaLyteTermSubset.nix {

packages/iosevka.nix

@@ -0,0 +1,154 @@
+{
+  stdenv,
+  lib,
+  buildNpmPackage,
+  fetchFromGitHub,
+  cctools,
+  remarshal,
+  ttfautohint-nox,
+  # Custom font set options.
+  # See https://typeof.net/Iosevka/customizer
+  # Can be a raw TOML string, or a Nix attrset.
+
+  # Ex:
+  # privateBuildPlan = ''
+  #   [buildPlans.iosevka-custom]
+  #   family = "Iosevka Custom"
+  #   spacing = "normal"
+  #   serifs = "sans"
+  #
+  #   [buildPlans.iosevka-custom.variants.design]
+  #   capital-j = "serifless"
+  #
+  #   [buildPlans.iosevka-custom.variants.italic]
+  #   i = "tailed"
+  # '';
+
+  # Or:
+  # privateBuildPlan = {
+  #   family = "Iosevka Custom";
+  #   spacing = "normal";
+  #   serifs = "sans";
+  #
+  #   variants = {
+  #     design.capital-j = "serifless";
+  #     italic.i = "tailed";
+  #   };
+  # }
+  privateBuildPlan ? null,
+  # Extra parameters. Can be used for ligature mapping.
+  # It must be a raw TOML string.
+
+  # Ex:
+  # extraParameters = ''
+  #   [[iosevka.compLig]]
+  #   unicode = 57808 # 0xe1d0
+  #   featureTag = 'XHS0'
+  #   sequence = "+>"
+  # '';
+  extraParameters ? null,
+  # Custom font set name. Required if any custom settings above.
+  set ? null,
+}:
+
+assert (privateBuildPlan != null) -> set != null;
+assert (extraParameters != null) -> set != null;
+
+buildNpmPackage rec {
+  pname = "Iosevka${toString set}";
+  version = "33.0.0";
+
+  src = fetchFromGitHub {
+    owner = "be5invis";
+    repo = "iosevka";
+    rev = "v${version}";
+    hash = "sha256-Wwh6EGngF+0vkNWnHU9isb24i/8gHBLQ3XMniF7dFTk=";
+  };
+
+  npmDepsHash = "sha256-Luzut1FLNS1MQ90ObbMNdKImOLhn/acrR1rja0jO0MI=";
+
+  nativeBuildInputs =
+    [
+      remarshal
+      ttfautohint-nox
+    ]
+    ++ lib.optionals stdenv.hostPlatform.isDarwin [
+      # libtool
+      cctools
+    ];
+
+  buildPlan =
+    if builtins.isAttrs privateBuildPlan then
+      builtins.toJSON { buildPlans.${pname} = privateBuildPlan; }
+    else
+      privateBuildPlan;
+
+  inherit extraParameters;
+  passAsFile =
+    [ "extraParameters" ]
+    ++ lib.optionals (
+      !(builtins.isString privateBuildPlan && lib.hasPrefix builtins.storeDir privateBuildPlan)
+    ) [ "buildPlan" ];
+
+  configurePhase = ''
+    runHook preConfigure
+    ${lib.optionalString (builtins.isAttrs privateBuildPlan) ''
+      remarshal -i "$buildPlanPath" -o private-build-plans.toml -if json -of toml
+    ''}
+    ${lib.optionalString
+      (builtins.isString privateBuildPlan && (!lib.hasPrefix builtins.storeDir privateBuildPlan))
+      ''
+        cp "$buildPlanPath" private-build-plans.toml
+      ''
+    }
+    ${lib.optionalString
+      (builtins.isString privateBuildPlan && (lib.hasPrefix builtins.storeDir privateBuildPlan))
+      ''
+        cp "$buildPlan" private-build-plans.toml
+      ''
+    }
+    ${lib.optionalString (extraParameters != null) ''
+      echo -e "\n" >> params/parameters.toml
+      cat "$extraParametersPath" >> params/parameters.toml
+    ''}
+    runHook postConfigure
+  '';
+
+  buildPhase = ''
+    export HOME=$TMPDIR
+    runHook preBuild
+
+    # pipe to cat to disable progress bar
+    npm run build --no-update-notifier --targets ttf::$pname -- --jCmd=$NIX_BUILD_CORES --verbosity=9 | cat
+
+    runHook postBuild
+  '';
+
+  installPhase = ''
+    runHook preInstall
+    fontdir="$out/share/fonts/truetype"
+    install -d "$fontdir"
+    install "dist/$pname/TTF"/* "$fontdir"
+    runHook postInstall
+  '';
+
+  enableParallelBuilding = true;
+
+  meta = with lib; {
+    homepage = "https://typeof.net/Iosevka/";
+    downloadPage = "https://github.com/be5invis/Iosevka/releases";
+    description = "Versatile typeface for code, from code";
+    longDescription = ''
+      Iosevka is an open-source, sans-serif + slab-serif, monospace +
+      quasi‑proportional typeface family, designed for writing code, using in
+      terminals, and preparing technical documents.
+    '';
+    license = licenses.ofl;
+    platforms = platforms.all;
+    maintainers = with maintainers; [
+      ttuegel
+      rileyinman
+      lunik1
+    ];
+  };
+}

packages/iosevkaLyteTerm.nix

@@ -1,4 +1,4 @@
-{ iosevka, ... }:
+{ fetchFromGitHub, iosevka, ... }:
 let
   set = "LyteTerm";
 in
@@ -126,7 +126,19 @@ in
       punctuation-dot = 'round'
     '';
   }).overrideAttrs
-  {
+  rec {
+    pname = "Iosevka";
+    version = "33.0.0";
+
+    src = fetchFromGitHub {
+      owner = "be5invis";
+      repo = "iosevka";
+      rev = "v${version}";
+      hash = "sha256-Wwh6EGngF+0vkNWnHU9isb24i/8gHBLQ3XMniF7dFTk=";
+    };
+
+    npmDepsHash = "sha256-Luzut1FLNS1MQ90ObbMNdKImOLhn/acrR1rja0jO0MI=";
+
     buildPhase = ''
       export HOME=$TMPDIR
       runHook preBuild