nix: add lastpass-cli overlay

.config/nixpkgs/overlays/lastpass.nix

@@ -0,0 +1,37 @@
+self: super:
+rec {
+
+  lpass = with self; stdenv.mkDerivation rec {
+    pname = "lpass";
+    version = "1.3.4-unreleased";
+
+    src = fetchFromGitHub {
+      owner = "lastpass";
+      repo = "lastpass-cli";
+      rev = "8767b5e53192ad4e72d1352db4aa9218e928cbe1";
+      sha256 = "sha256:1d4m5h9byq5cccdg98m8d8457rbvp28q821d8rpglykgrfgnknwp";
+    };
+
+    nativeBuildInputs = [ asciidoc cmake docbook_xsl pkgconfig ];
+
+    buildInputs = [
+      bash-completion curl openssl libxml2 libxslt
+    ];
+
+    enableParallelBuilding = true;
+
+    installTargets = [ "install" "install-doc" ];
+
+    postInstall = ''
+      install -Dm644 -T ../contrib/lpass_zsh_completion $out/share/zsh/site-functions/_lpass
+      install -Dm644 -T ../contrib/completions-lpass.fish $out/share/fish/vendor_completions.d/lpass.fish
+    '';
+
+    meta = with lib; {
+      description = "Stores, retrieves, generates, and synchronizes passwords securely";
+      homepage    = "https://github.com/lastpass/lastpass-cli";
+      license     = licenses.gpl2Plus;
+      platforms   = platforms.unix;
+    };
+  };
+}