Added update-ivory-pill script

Makefile

@@ -21,6 +21,7 @@ test:
 pills:
 	sh/update-solid-pill
 	sh/update-brass-pill
+	sh/update-ivory-pill
 
 clean:
 	rm -rf ./out ./work

nix/ops/default.nix

@@ -48,4 +48,9 @@ rec {
     pier = zod;
   };
 
+  ivory = import ./ivory {
+    inherit arvo pkgs tlon deps debug;
+    pier = zod;
+  };
+
 }

nix/ops/ivory/builder.sh

@@ -0,0 +1,22 @@
+source $stdenv/setup
+
+set -ex
+
+cp -r $PIER ./pier
+chmod -R u+rw ./pier
+
+$URBIT -d ./pier
+
+cleanup () {
+  if [ -e ./pier/.vere.lock ]
+  then kill $(< ./pier/.vere.lock) || true;
+  fi
+}
+
+trap cleanup EXIT
+
+herb ./pier -P ivory.pill -d '+ivory'
+
+mv ivory.pill $out
+
+set +x

nix/ops/ivory/default.nix

@@ -0,0 +1,19 @@
+{ pkgs, tlon, deps, pier, arvo, debug }:
+
+let
+
+  urbitExe = if debug
+             then "${tlon.urbit-debug}/bin/urbit-debug -g"
+             else "${tlon.urbit}/bin/urbit";
+
+in
+
+pkgs.stdenv.mkDerivation rec {
+  name        = "ivory";
+  builder     = ./builder.sh;
+  buildInputs = [ tlon.herb pkgs.coreutils ];
+
+  URBIT = urbitExe;
+  PIER  = pier;
+  ARVO  = arvo;
+}

sh/update-ivory-pill

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+
+set -ex
+
+pkg=$(nix-build nix/ops -A ivory --no-out-link)
+cp $pkg bin/ivory.pill