gifski 0.6.2 (new formula)

Closes #20241.

Signed-off-by: FX Coudert <fxcoudert@gmail.com>

Formula/gifski.rb

@@ -0,0 +1,21 @@
+class Gifski < Formula
+  desc "Highest-quality GIF encoder based on pngquant"
+  homepage "https://gif.ski/"
+  url "https://github.com/ImageOptim/gifski/archive/0.6.2.tar.gz"
+  sha256 "4f0379aa05a5e99fd6a9efb851efa7553e9663ec800ac7247fb7e26505a4b225"
+
+  depends_on "pkg-config" => :build
+  depends_on "rust" => :build
+  depends_on "ffmpeg"
+
+  def install
+    system "cargo", "build", "--release", "--features=video"
+    bin.install "target/release/gifski"
+  end
+
+  test do
+    system bin/"gifski", "-o", "out.gif", test_fixtures("test.png")
+    assert_predicate testpath/"out.gif", :exist?
+    refute_predicate (testpath/"out.gif").size, :zero?
+  end
+end