add basic CLI

Author: dbrock

Makefile

@@ -1,2 +1,16 @@
 all:; dapp build
 test:; dapp test
+
+SHELL = bash
+dirs = {bin,libexec}
+prefix ?= /usr/local
+
+dirs:; mkdir -p $(prefix)/$(dirs)
+files = $(shell ls -d $(dirs)/*)
+install:; cp -r -n $(dirs) $(prefix)
+link: dirs; for x in $(files); do ln -s `pwd`/$$x $(prefix)/$$x; done
+uninstall:; rm -r $(addprefix $(prefix)/,$(files))
+
+check:; ! grep '^#!/bin/sh' libexec/*/* && \
+grep '^#!/usr/bin/env bash' libexec/*/* | \
+cut -d: -f1 | xargs shellcheck

bin/sai

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+set -e
+PATH=${0%/*/*}/libexec/sai:$PATH sai "$@"