move version info to separate package

version/version.go

@@ -0,0 +1,31 @@
+package version
+
+import (
+	"runtime"
+	"fmt"
+)
+
+var (
+	zreplVersion string // set by build infrastructure
+)
+
+type ZreplVersionInformation struct {
+	Version         string
+	RuntimeGOOS     string
+	RuntimeGOARCH   string
+	RUNTIMECompiler string
+}
+
+func NewZreplVersionInformation() *ZreplVersionInformation {
+	return &ZreplVersionInformation{
+		Version:         zreplVersion,
+		RuntimeGOOS:     runtime.GOOS,
+		RuntimeGOARCH:   runtime.GOARCH,
+		RUNTIMECompiler: runtime.Compiler,
+	}
+}
+
+func (i *ZreplVersionInformation) String() string {
+	return fmt.Sprintf("zrepl version=%s GOOS=%s GOARCH=%s Compiler=%s",
+		i.Version, i.RuntimeGOOS, i.RuntimeGOARCH, i.RUNTIMECompiler)
+}