ttyd: init at 1.4.2_pre174_6df6ac3e

ttyd hasn't seen a release in a while, but has a few useful bugfixes and
features (such as IPv6) that are good to have. It also seems to fix a
few crashes I encountered (likely due to newer openssl/libwebsockets).
So in an untraditional fashion, we'll adopt this with a _pre tag to
ensure it gets bumped correctly later on.

Signed-off-by: Austin Seipp <aseipp@pobox.com>

pkgs/servers/ttyd/default.nix

@@ -0,0 +1,37 @@
+{ stdenv, fetchFromGitHub
+, pkgconfig, cmake, xxd
+, openssl, libwebsockets, json_c, libuv
+}:
+
+with builtins;
+
+let
+  # ttyd hasn't seen a release in quite a while. remove all this
+  # junk when a new one happens (eventually)
+  revCount = 174;
+  src = fetchFromGitHub {
+    owner  = "tsl0922";
+    repo   = "ttyd";
+    rev    = "6df6ac3e03b705ddd46109c2ac43a1cba439c0df";
+    sha256 = "0g5jlfa7k6qd59ysdagczlhwgjfjspb3sfbd8b790hcil933qrxm";
+  };
+
+in stdenv.mkDerivation rec {
+  name = "ttyd-${version}";
+  version = "1.4.2_pre${toString revCount}_${substring 0 8 src.rev}";
+  inherit src;
+
+  nativeBuildInputs = [ pkgconfig cmake xxd ];
+  buildInputs = [ openssl libwebsockets json_c libuv ];
+  enableParallelBuilding = true;
+
+  outputs = [ "out" "man" ];
+
+  meta = {
+    description = "Share your terminal over the web";
+    homepage    = https://github.com/tsl0922/ttyd;
+    license     = stdenv.lib.licenses.mit;
+    maintainers = [ stdenv.lib.maintainers.thoughtpolice ];
+    platforms   = stdenv.lib.platforms.linux;
+  };
+}

pkgs/top-level/all-packages.nix

@@ -9239,6 +9239,8 @@ in
 
   trellis = callPackage ../development/tools/trellis { };
 
+  ttyd = callPackage ../servers/ttyd { };
+
   tweak = callPackage ../applications/editors/tweak { };
 
   tychus = callPackage ../development/tools/tychus {