Pull Version down into enterprise service

We need to report the current version, but it's only available as a
link-time variable in the main package. Since we can't import this
without incurring the wrath of the Go compiler's no-circular dependency
rule, we need to pull this down through the agent.

agent/agent.go

@@ -20,6 +20,7 @@ import (
 // Agent runs telegraf and collects data based on the given config
 type Agent struct {
 	Config  *config.Config
+	Version string
 }
 
 // NewAgent returns an Agent struct based off the given Config
@@ -329,7 +330,7 @@ func (a *Agent) Run(shutdown chan struct{}) error {
 	}
 	ticker := time.NewTicker(a.Config.Agent.Interval.Duration)
 
-	ent := enterprise.NewEnterprise(a.Config.Agent.Enterprise, a.Config.Agent.Hostname, shutdown)
+	ent := enterprise.NewEnterprise(a.Config.Agent.Enterprise, a.Config.Agent.Hostname, a.Version, shutdown)
 	go ent.Open()
 
 	wg.Add(1)

cmd/telegraf/telegraf.go

@@ -174,6 +174,7 @@ func main() {
 		}
 
 		ag, err := agent.NewAgent(c)
+		ag.Version = Version
 		if err != nil {
 			log.Fatal(err)
 		}

services/enterprise/enterprise.go

@@ -21,18 +21,20 @@ type Service struct {
 	hosts     []*client.Host
 	logger    *log.Logger
 	hostname  string
+	version   string
 	adminPort string
 
 	shutdown chan struct{}
 }
 
-func NewEnterprise(c Config, hostname string, shutdown chan struct{}) *Service {
+func NewEnterprise(c Config, hostname, version string, shutdown chan struct{}) *Service {
 	return &Service{
 		hosts:     c.Hosts,
 		hostname:  hostname,
 		logger:    log.New(os.Stdout, "[enterprise]", log.Ldate|log.Ltime),
 		adminPort: fmt.Sprintf(":%d", c.AdminPort),
 		shutdown:  shutdown,
+		version:   version,
 	}
 }
 
@@ -60,7 +62,7 @@ func (s *Service) registerProduct(cl *client.Client) (token string, secret strin
 		Host:      s.hostname,
 		ClusterID: "8675309",
 		Name:      "telegraf",
-		Version:   "0.10.1.dev",
+		Version:   s.version,
 		AdminURL:  "http://" + s.hostname + s.adminPort,
 	}
 

services/enterprise/enterprise_test.go

@@ -47,7 +47,7 @@ func Test_RegistersWithEnterprise(t *testing.T) {
 
 	shutdown := make(chan struct{})
 	defer close(shutdown)
-	e := enterprise.NewEnterprise(c, expected, shutdown)
+	e := enterprise.NewEnterprise(c, expected, "test", shutdown)
 	e.Open()
 
 	timeout := time.After(1 * time.Millisecond)
@@ -80,7 +80,7 @@ func Test_StartsAdminInterface(t *testing.T) {
 
 	shutdown := make(chan struct{})
 	defer close(shutdown)
-	e := enterprise.NewEnterprise(c, hostname, shutdown)
+	e := enterprise.NewEnterprise(c, hostname, "test", shutdown)
 	e.Open()
 
 	timeout := time.After(1 * time.Millisecond)
@@ -113,7 +113,7 @@ func Test_ClosesAdminInterface(t *testing.T) {
 	}
 
 	shutdown := make(chan struct{})
-	e := enterprise.NewEnterprise(c, hostname, shutdown)
+	e := enterprise.NewEnterprise(c, hostname, "test", shutdown)
 	e.Open()
 
 	timeout := time.After(1 * time.Millisecond)