add travis support

.travis.yml

@@ -0,0 +1,16 @@
+language: go
+
+env:
+    - GO15VENDOREXPERIMENT=0
+
+go:
+    - 1.5.3
+    - 1.4.3
+    - 1.3.3
+    - 1.6
+
+install:
+    - go get -u github.com/tools/godep
+
+script:
+    - make gotest

Makefile

@@ -1,17 +1,38 @@
-all: redis-port
+.DEFAULT_GOAL := build-all
 
-godep-env:
-	@command -v godep 2>&1 >/dev/null || go get -u github.com/tools/godep
-	@GOPATH=`godep path` godep restore
+export GO15VENDOREXPERIMENT=0
 
-redis-port: godep-env
-	godep go build -i -o bin/redis-port ./cmd
+.PHONY: godep
+
+GODEP :=
+
+ifndef GODEP
+GODEP := $(shell \
+	if which godep 2>&1 >/dev/null; then \
+		echo "godep"; \
+	else \
+		if [ ! -x "${GOPATH}/bin/godep" ]; then \
+			go get -u github.com/tools/godep; \
+		fi; \
+		echo "${GOPATH}/bin/godep"; \
+	fi;)
+endif
+
+build-all: redis-port
+
+godep:
+	@mkdir -p bin
+	@GOPATH=`${GODEP} path` ${GODEP} restore -v 2>&1 | while IFS= read -r line; do echo "  >>>> $${line}"; done
+	@echo
+
+redis-port: godep
+	${GODEP} go build -i -o bin/redis-port ./cmd
 
 clean:
-	rm -rf bin
+	@rm -rf bin
 
 distclean: clean
-	@rm -rf Godeps/_workspace
+	@rm -rf Godeps/_workspace/pkg
 
-gotest:
-	godep go test -cover -v ./...
+gotest: godep
+	${GODEP} go test ./pkg/...