use build info

cmd_build.go

@@ -12,9 +12,9 @@ import (
 var buildUsage = `
 warren build - Runs go build and populates the following variables:
 
-  Build.GitBranch	from git
-  Build.GitHash		from git
-  Build.Date		from system time
+  BuildGitBranch	from git
+  BuildGitHash		from git
+  BuildDate		from system time
 `
 
 var buildCmd = &Command{
@@ -32,7 +32,7 @@ func buildRun(cmd *Command, args ...string) {
 	}
 
 	date := time.Now().Format(time.RFC3339)
-	gobuild := exec.Command("go", "build", "-ldflags", fmt.Sprintf("-X main.Build.Date %s -X main.Build.GitHash %s -X main.Build.GitBranch %s\"", date, warren.GitHash(), warren.GitBranch()))
+	gobuild := exec.Command("go", "build", "-ldflags", fmt.Sprintf("-X main.BuildDate %s -X main.BuildGitHash %s -X main.BuildGitBranch %s", date, warren.GitHash(), warren.GitBranch()))
 	gobuild.Stderr = os.Stderr
 	gobuild.Stdout = os.Stdout
 	err := gobuild.Run()

warren.go

@@ -8,13 +8,9 @@ import (
 	"text/template"
 )
 
-type BuildInfo struct {
-	GitHash   string
-	GitBranch string
-	Date      string
-}
-
-var Build BuildInfo
+var BuildGitHash string
+var BuildGitBranch string
+var BuildDate string
 
 var usagePrefix = `
 warren is a tool for building, deploying and running multiple versions of a Go server
@@ -34,7 +30,7 @@ var commands = []*Command{
 }
 
 func usage() {
-	fmt.Println(Build.GitBranch, " ", Build.GitHash, " ", Build.Date)
+	fmt.Println(BuildGitBranch, " ", BuildGitHash, " ", BuildDate)
 	fmt.Print(usagePrefix)
 	usageTmpl.Execute(os.Stdout, commands)
 }