Update Makefile with new build requirements

Makefile

@@ -1,23 +1,31 @@
 UNAME := $(shell sh -c 'uname')
+VERSION := $(shell sh -c 'git describe --always --tags')
 
-ifeq ($(UNAME), Darwin)
-	export ADVERTISED_HOST := $(shell sh -c 'boot2docker ip')
-endif
-ifeq ($(UNAME), Linux)
-	export ADVERTISED_HOST := localhost
-endif
+build: prepare
+	$(GOPATH)/bin/godep go build -o telegraf -ldflags \
+		"-X main.Version $(VERSION)" \
+		./cmd/telegraf/telegraf.go
 
 prepare:
-	godep go install ./...
+	go get github.com/tools/godep
+	$(GOPATH)/bin/godep go install ./...
 
 docker-compose:
 	docker-compose up -d
 
-test: prepare docker-compose
-	godep go test -v ./...
+test:
+ifeq ($(UNAME), Darwin)
+	ADVERTISED_HOST=$(shell sh -c 'boot2docker ip') $(MAKE) test-full
+endif
+ifeq ($(UNAME), Linux)
+	ADVERTISED_HOST=localhost $(MAKE) test-full
+endif
+
+test-full: prepare docker-compose
+	$(GOPATH)/bin/godep go test -v ./...
 
 test-short: prepare
-	godep go test -v -short ./...
+	$(GOPATH)/bin/godep go test -v -short ./...
 
 test-cleanup:
 	docker-compose kill

README.md

@@ -44,6 +44,12 @@ brew update
 brew install telegraf
 ```
 
+### From Source:
+
+Telegraf manages dependencies via `godep`, which gets installed via the Makefile.
+Assuming you have your GOPATH setup, `make build` should be enough to gather dependencies
+and build telegraf.
+
 ### How to use it:
 
 * Run `telegraf -sample-config > telegraf.toml` to create an initial configuration

circle-test.sh

@@ -24,7 +24,9 @@ function exit_if_fail {
 # build takes three arguments: GOOS & GOARCH & VERSION
 function build {
   echo -n "=> $1-$2: "
-  GOOS=$1 GOARCH=$2 godep go build -o telegraf-$1-$2 -ldflags "-X main.Version $3" ./cmd/telegraf/telegraf.go
+  GOOS=$1 GOARCH=$2 godep go build -o telegraf-$1-$2 \
+                    -ldflags "-X main.Version $3" \
+                    ./cmd/telegraf/telegraf.go
   du -h telegraf-$1-$2
 }
 
@@ -59,9 +61,9 @@ exit_if_fail godep go vet ./...
 exit_if_fail godep go test -v -short ./...
 
 # Build binaries
-build "linux" "amd64" `git rev-parse --short HEAD`
-build "linux" "386" `git rev-parse --short HEAD`
-build "linux" "arm" `git rev-parse --short HEAD`
+build "linux" "amd64" `git describe --always --tags`
+build "linux" "386" `git describe --always --tags`
+build "linux" "arm" `git describe --always --tags`
 # Artifact binaries
 mv telegraf* $CIRCLE_ARTIFACTS
 

cmd/telegraf/telegraf.go

@@ -22,13 +22,15 @@ var fPidfile = flag.String("pidfile", "", "file to write our pid to")
 var fPLuginsFilter = flag.String("filter", "", "filter the plugins to enable, separator is :")
 
 // Telegraf version
-var Version = "0.1.6-dev"
+//	-ldflags "-X main.Version `git describe --always --tags`"
+var Version string
 
 func main() {
 	flag.Parse()
 
 	if *fVersion {
-		fmt.Printf("Telegraf - Version %s\n", Version)
+		v := fmt.Sprintf("Telegraf - Version %s", Version)
+		fmt.Println(v)
 		return
 	}