diff --git a/Formula/diffoscope.rb b/Formula/diffoscope.rb
new file mode 100644
index 0000000000..876cc2d625
--- /dev/null
+++ b/Formula/diffoscope.rb
@@ -0,0 +1,49 @@
+class Diffoscope < Formula
+  desc "In-depth comparison of files, archives, and directories."
+  homepage "https://diffoscope.org"
+  url "https://pypi.python.org/packages/source/d/diffoscope/diffoscope-42.tar.gz"
+  sha256 "c0241acf5de7eb0e9e209e43dbf389beca722ddfb8b5d5630fd40569f1f465e2"
+
+  depends_on "libmagic"
+  depends_on "libarchive"
+  depends_on "gnu-tar"
+  depends_on :python3
+
+  resource "libarchive-c" do
+    url "https://pypi.python.org/packages/source/l/libarchive-c/libarchive-c-2.2.tar.gz"
+    sha256 "5d54aa6f6ab21e3bd12c2f8b6c4e80316b049c2b60ab0a4418cb34d8c63e997c"
+  end
+
+  resource "python-magic" do
+    url "https://pypi.python.org/packages/source/p/python-magic/python-magic-0.4.10.tar.gz"
+    sha256 "79fd2865ec96074749825f9e9562953995d5bf12b6793f24d75c37479ad4a2c3"
+  end
+
+  def install
+    # Submitted upstream to lunar@debian.org
+    inreplace "diffoscope/difference.py", "'diff', '-au7'", "'diff', '-aU7'"
+    inreplace "diffoscope/comparators/tar.py", "'tar'", "'gtar'"
+
+    pyver = Language::Python.major_minor_version "python3"
+    ENV.prepend_create_path "PYTHONPATH", libexec/"vendor/lib/python#{pyver}/site-packages"
+
+    resources.each do |r|
+      r.stage do
+        system "python3", *Language::Python.setup_install_args(libexec/"vendor")
+      end
+    end
+
+    ENV.prepend_create_path "PYTHONPATH", libexec/"lib/python#{pyver}/site-packages"
+    system "python3", *Language::Python.setup_install_args(libexec)
+    bin.install Dir[libexec/"bin/*"]
+    libarchive = Formula["libarchive"].opt_lib/"libarchive.dylib"
+    bin.env_script_all_files(libexec+"bin", :PYTHONPATH => ENV["PYTHONPATH"],
+                                            :LIBARCHIVE => libarchive)
+  end
+
+  test do
+    (testpath/"test1").write "test"
+    cp testpath/"test1", testpath/"test2"
+    system "#{bin}/diffoscope", "test1", "test2"
+  end
+end