core: Install bat/delta

install_delta.bash

@@ -0,0 +1,11 @@
+DELTA_VER=0.4.1
+install_delta() {
+	if [ "$(uname -s)" == 'Darwin' ]; then
+		DELTA_PATH=delta-${DELTA_VER}-x86_64-apple-darwin
+	elif [ "$(uname -s)" == 'Linux' ] ; then
+		DELTA_PATH=delta-${DELTA_VER}-x86_64-unknown-linux-gnu
+	fi
+	DELTA_URL=https://github.com/dandavison/delta/releases/download/${DELTA_VER}/${DELTA_PATH}.tar.gz
+	echo "Installing Delta $DELTA_PATH"
+	((curl -L ${DELTA_URL} | tar xzf - "${DELTA_PATH}/delta") && mv ${DELTA_PATH}/delta $BASE/bin/delta-${DELTA_VER} && ln -sf $BASE/bin/delta-${DELTA_VER} $BASE/bin/delta && rm -r ${DELTA_PATH}) || exit 1
+}