Add mailpile package

nix/.config/nixpkgs/overlays/02-extrapkgs.nix

@@ -4,6 +4,7 @@ self: super: {
   pyroscope = super.callPackage ../pkgs/pyroscope {};
   peageprint = super.callPackage ../pkgs/peageprint.nix {};
   nottetris2 = super.callPackage ../pkgs/nottetris2.nix {};
+  mailpile = super.callPackage ../pkgs/mailpile.nix {};
   libinput-gestures = super.callPackage ../pkgs/libinput-gestures.nix {};
   gitFire = super.stdenv.mkDerivation {
     src = super.fetchFromGitHub {

nix/.config/nixpkgs/pkgs/mailpile.nix

@@ -0,0 +1,45 @@
+{ stdenv, fetchFromGitHub, python2Packages, gnupg1orig, openssl, git }:
+
+python2Packages.buildPythonApplication rec {
+  name = "mailpile-${version}";
+  version = "1.0rc1";
+
+  src = fetchFromGitHub {
+    owner = "mailpile";
+    repo = "Mailpile";
+    rev = "release/1.0";
+    sha256 = "0hl42ljdzk57ndndff9f1yh08znxwj01kjdmx019vmml0arv0jga";
+  };
+
+  postPatch = ''
+    substituteInPlace setup.py --replace "data_files.append((dir" "data_files.append(('lib/${python2Packages.python.libPrefix}/site-packages/' + dir"
+    patchShebangs scripts
+  '';
+  PBR_VERSION=version;
+
+  buildInputs = with python2Packages; [ pbr git ];
+
+  propagatedBuildInputs = with python2Packages; [
+    cryptography
+    pillow jinja2 spambayes python2Packages.lxml
+    pgpdump gnupg1orig appdirs
+  ];
+
+  postInstall = ''
+    wrapProgram $out/bin/mailpile \
+      --prefix PATH ":" "${stdenv.lib.makeBinPath [ gnupg1orig openssl ]}" \
+      --set MAILPILE_SHARED $out/share/mailpile
+
+  '';
+
+  # No tests were found
+  doCheck = false;
+
+  meta = with stdenv.lib; {
+    description = "A modern, fast web-mail client with user-friendly encryption and privacy features";
+    homepage = https://www.mailpile.is/;
+    license = [ licenses.agpl3 ];
+    platforms = platforms.linux;
+    maintainers = [ maintainers.domenkozar maintainers.yorickvp ];
+  };
+}