SystemInfo struct is now master of its own domain

system/system_info.go

@@ -1,7 +1,10 @@
 package system
 
 import (
+	"os/exec"
 	"strings"
+
+	"github.com/senorprogrammer/wtf/wtf"
 )
 
 type SystemInfo struct {
@@ -10,9 +13,14 @@ type SystemInfo struct {
 	BuildVersion   string
 }
 
-func NewSystemInfo(raw string) *SystemInfo {
+func NewSystemInfo() *SystemInfo {
 	m := make(map[string]string)
 
+	arg := []string{}
+
+	cmd := exec.Command("sw_vers", arg...)
+	raw := wtf.ExecuteCommand(cmd)
+
 	for _, row := range strings.Split(raw, "\n") {
 		parts := strings.Split(row, ":")
 

system/widget.go

@@ -2,7 +2,6 @@ package system
 
 import (
 	"fmt"
-	"os/exec"
 	"time"
 
 	"github.com/olebedev/config"
@@ -28,7 +27,7 @@ func NewWidget(builtAt, version string) *Widget {
 		Version: version,
 	}
 
-	widget.buildSystemInfo()
+	widget.systemInfo = NewSystemInfo()
 
 	return &widget
 }
@@ -64,12 +63,3 @@ func (widget *Widget) prettyBuiltAt() string {
 		return str.Format("Jan _2, 15:04")
 	}
 }
-
-func (widget *Widget) buildSystemInfo() {
-	arg := []string{}
-
-	cmd := exec.Command("sw_vers", arg...)
-	str := wtf.ExecuteCommand(cmd)
-
-	widget.systemInfo = NewSystemInfo(str)
-}