add emoji

art/emoji/lotte/default.nix

@@ -0,0 +1,95 @@
+{
+  callPackage,
+  stdenvNoCC,
+  libjxl,
+  imagemagick,
+}: let
+  crushpng = callPackage ../../../lib/crushpng.nix {};
+  lotte-art = callPackage ../../lotte {};
+  resized = name:
+    stdenvNoCC.mkDerivation {
+      inherit name;
+      src = lotte-art;
+      nativeBuildInputs = [libjxl imagemagick];
+      buildPhase = ''
+        djxl $name.jxl $name.png
+        convert $name.png -scale 128x1:28\> $name-scaled.png
+      '';
+      installPhase = ''
+        cp $name-scaled.png $out
+      '';
+    };
+  lnEmojiScript = name: ''
+    ln -s ${crushpng {
+      inherit name;
+      src = resized name;
+      maxsize = 40000;
+    }} $out/${name}.png
+  '';
+  emoji = [
+    "2019-10-05-dae-lotteheart"
+    "2019-10-05-dae-lottehearts"
+    "2019-10-05-dae-lottepet"
+    "2019-11-17-workerq-lottetrash"
+    "2020-01-05-dae-lotteweary"
+    "2020-01-17-workerq-lotteblep"
+    "2020-01-17-workerq-lottecoffee"
+    "2020-01-17-workerq-lottecookie"
+    "2020-01-17-workerq-lottehug"
+    "2020-01-17-workerq-lottesmile"
+    "2021-03-23-sammythetanuki-lottegoodsalt"
+    "2021-04-21-sammythetanuki-lottecoffeemachine"
+    "2021-05-03-sammythetanuki-lotteflatfuck"
+    "2021-05-03-sammythetanuki-lottehug"
+    "2021-05-03-sammythetanuki-lottesnuggle"
+    "2021-05-03-sammythetanuki-lottetrash"
+    "2021-05-29-sammythetanuki-lottepizza"
+    "2021-07-02-sammythetanuki-lottegrab"
+    "2021-07-16-sammythetanuki-lottecarostacc"
+    "2021-08-03-sammythetanuki-everyonesproblem"
+    "2021-09-13-sammythetanuki-plushhug"
+    "2021-10-28-pulexart-me-climbTree"
+    "2021-10-28-pulexart-me-dab"
+    "2021-10-28-pulexart-me-eatingPopcorn"
+    "2021-10-28-pulexart-me-flirt"
+    "2021-10-28-pulexart-me-garbage"
+    "2021-10-28-pulexart-me-heartAce"
+    "2021-10-28-pulexart-me-heartAgender"
+    "2021-10-28-pulexart-me-heartLGBT"
+    "2021-10-28-pulexart-me-heartNonbinary"
+    "2021-10-28-pulexart-me-heartNormal"
+    "2021-10-28-pulexart-me-heartRaccoongender"
+    "2021-10-28-pulexart-me-heartTrans"
+    "2021-10-28-pulexart-me-money"
+    "2021-10-28-pulexart-me-noU"
+    "2021-10-28-pulexart-me-plotting"
+    "2021-10-28-pulexart-me-praise"
+    "2021-10-28-pulexart-me-robber"
+    "2021-10-28-pulexart-me-sleepy"
+    "2021-10-28-pulexart-me-sneak"
+    "2021-10-28-pulexart-me-trash"
+    "2021-10-28-pulexart-me-washingFood"
+    "2021-12-18-sammythetanuki-lottecookies"
+    "2021-12-20-sammythetanuki-lottecrimmus"
+    "2022-01-08-sammythetanuki-lotteangry"
+    "2022-01-08-sammythetanuki-lottepleading"
+    "2022-02-20-sammythetanuki-lottehacking-notext"
+    "2022-05-05-sammythetanuki-lotteass"
+    "2022-06-13-sammythetanuki-lotteplushnothoughts"
+    "2022-07-14-sammythetanuki-maybecringe-transparent"
+    "2022-11-06-pulexart-me-heartTherian"
+  ];
+in
+  stdenvNoCC.mkDerivation {
+    name = "lotte-emoji";
+    dontUnpack = true;
+    buildPhase = "true";
+    installPhase = ''
+      mkdir $out
+      ${toString (map lnEmojiScript emoji)}
+    '';
+    meta = {
+      description = "Stickers and emoji for the fediverse";
+      license = lib.licenses.cc-by-nc-sa-40;
+    };
+  }

default.nix

@@ -14,6 +14,7 @@
   akkoma = pkgs.callPackage ./akkoma {};
   pleroma-fe = pkgs.callPackage ./akkoma/pleroma-fe {};
   admin-fe = pkgs.callPackage ./akkoma/admin-fe {};
+  emoji-lotte = pkgs.callPackage ./art/emoji/lotte {};
   emoji-volpeon-blobfox = pkgs.callPackage ./art/emoji/volpeon/blobfox.nix {};
   emoji-volpeon-blobfox-flip = pkgs.callPackage ./art/emoji/volpeon/blobfox_flip.nix {};
   emoji-volpeon-bunhd = pkgs.callPackage ./art/emoji/volpeon/bunhd.nix {};

lib/crushpng.nix

@@ -0,0 +1,18 @@
+{
+  stdenvNoCC,
+  oxipng,
+  pngquant,
+}: {
+  name,
+  src,
+  maxsize,
+} @ args:
+stdenvNoCC.mkDerivation {
+  dontUnpack = true;
+  inherit (args) name src maxsize;
+  nativeBuildInputs = [oxipng pngquant];
+  buildPhase = ''
+    ${./crushpng.sh} $src $out $maxsize
+  '';
+  installPhase = "true";
+}

lib/crushpng.sh

@@ -0,0 +1,14 @@
+#!/bin/sh
+
+set -ex
+
+oxipng -o 4 --strip safe -Z $1 --out $2
+[ "$(wc -c $2 | awk '{print $1}')" -le $3 ] && exit 0
+
+for i in $(seq 100 -1 0); do
+  cat $1 | pngquant --quality 0-$i - | oxipng -o 4 --strip safe -Z - --out $2
+  [ "$(wc -c $2 | awk '{print $1}')" -le $3 ] && exit 0
+done
+
+rm $2
+exit 1

lib/default.nix

@@ -2,4 +2,5 @@
   mkPleromaEmoji = pkgs.callPackage ./mkPleromaEmoji.nix {};
   gradleDeps = pkgs.callPackage ./gradleDeps.nix {};
   opensslLegacyProvider = pkgs.callPackage ./opensslLegacyProvider.nix {};
+  crushpng = pkgs.callPackage ./crushpng.nix {};
 }