fix(agd): make agd-builder.sh only build

bin/agd

@@ -1,5 +1,12 @@
 #! /bin/bash
-# bin/agd - execute ../scripts/agd-builder.sh
+# bin/agd - execute ../scripts/agd-builder.sh then run the built `agd`
 real0=$(readlink "${BASH_SOURCE[0]}" || echo "${BASH_SOURCE[0]}")
 thisdir=$(cd "$(dirname -- "$real0")" > /dev/null && pwd -P)
-exec "$thisdir/../scripts/agd-builder.sh" ${1+"$@"}
+
+# shellcheck disable=SC1091
+source "$thisdir/../scripts/agd-builder.sh" ${1+"$@"}
+
+# Run the built Cosmos daemon.
+# shellcheck disable=SC2031
+export PATH="$thisdir/../packages/cosmic-swingset/bin:$PATH"
+exec "$thisdir/../$GOLANG_DAEMON" ${1+"$@"}

scripts/agd-builder.sh

@@ -237,9 +237,4 @@ xsnap_version=$("${thisdir}/../packages/xsnap/xsnap-native/xsnap/build/bin/${pla
 if $only_build; then
   echo "Build complete." 1>&2
   exit 0
-fi
-
-# Run the built Cosmos daemon.
-# shellcheck disable=SC2031
-export PATH="$thisdir/../packages/cosmic-swingset/bin:$PATH"
-exec "$thisdir/../$GOLANG_DAEMON" ${1+"$@"}
+fi