kepubify 2.3.3 (new formula)

Closes #44712.

Signed-off-by: Rui Chen <rchen@meetup.com>

Formula/kepubify.rb

@@ -0,0 +1,27 @@
+class Kepubify < Formula
+  desc "Convert ebooks from epub to kepub"
+  homepage "https://pgaskin.net/kepubify/"
+  url "https://github.com/geek1011/kepubify/archive/v2.3.3.tar.gz"
+  sha256 "57bbd5c5f24eab4d5eb5ab2dd9fb7b534afbfaf78d0c07fbf8c570b2fe5fae0a"
+  head "https://github.com/geek1011/kepubify.git"
+
+  depends_on "go" => :build
+
+  def install
+    ENV["GOPATH"] = HOMEBREW_CACHE/"go_cache"
+
+    system "go", "build", "-o", bin/"kepubify",
+                 "-ldflags", "-X main.version=v#{version}"
+
+    pkgshare.install "kepub/testdata/books/test1.epub"
+  end
+
+  test do
+    pdf = test_fixtures("test.pdf")
+    output = shell_output("#{bin}/kepubify #{pdf} 2>&1", 1)
+    assert_match "not an epub", output
+
+    system bin/"kepubify", pkgshare/"test1.epub"
+    assert_predicate testpath/"test1.kepub.epub", :exist?
+  end
+end