Travis testing

Makefile

@@ -1,17 +1,24 @@
 shellcheck:
 ifeq ($(shell shellcheck > /dev/null 2>&1 ; echo $$?),127)
 ifeq ($(shell uname),Darwin)
-		brew install shellcheck
+	brew install shellcheck
 else
-		sudo add-apt-repository 'deb http://archive.ubuntu.com/ubuntu trusty-backports main restricted universe multiverse'
-		sudo apt-get update && sudo apt-get install -y shellcheck
+	sudo add-apt-repository 'deb http://archive.ubuntu.com/ubuntu trusty-backports main restricted universe multiverse'
+	sudo apt-get update -qq && sudo apt-get install -qq -y shellcheck
 endif
 endif
 
 bats:
+ifeq ($(shell bats > /dev/null 2>&1 ; echo $$?),127)
+ifeq ($(shell uname),Darwin)
 	git clone https://github.com/sstephenson/bats.git /tmp/bats
 	cd /tmp/bats && sudo ./install.sh /usr/local
 	rm -rf /tmp/bats
+else
+	sudo add-apt-repository ppa:duggan/bats --yes
+	sudo apt-get update -qq && sudo apt-get install -qq -y bats
+endif
+endif
 
 ci-dependencies: shellcheck bats
 
@@ -21,10 +28,14 @@ lint:
 	# SC2068: Double quote array expansions, otherwise they're like $* and break on spaces. - https://github.com/koalaman/shellcheck/wiki/SC2068
 	# SC2086: Double quote to prevent globbing and word splitting - https://github.com/koalaman/shellcheck/wiki/SC2086
 	@echo linting...
-	@$(QUIET) find . -not -path '*/\.*' | xargs file | egrep "shell|bash" | awk '{ print $$1 }' | sed 's/://g' | xargs shellcheck -e SC2046,SC2068,SC2086
+	@$(QUIET) find ./ -maxdepth 1 -not -path '*/\.*' | xargs file | egrep "shell|bash" | awk '{ print $$1 }' | sed 's/://g' | xargs shellcheck -e SC2046,SC2068,SC2086
 
 unit-tests:
 	@echo running unit tests...
-	@$(QUIET) bats tests/unit
+	@$(QUIET) bats tests
 
-test: ci-dependencies lint unit-tests
+setup:
+	bash tests/setup.sh
+	$(MAKE) ci-dependencies
+
+test: setup lint unit-tests