abstract asset storage

bootstrap/assets.go

@@ -0,0 +1,15 @@
+package bootstrap
+
+import "github.com/rocketsoftware/open-web-launch/gui"
+
+//go:generate go-bindata-assetfs -pkg bootstrap assets/...
+type assets struct {
+}
+
+func (*assets) Get(name string) ([]byte, error) {
+	return Asset(name)
+}
+
+func init() {
+	gui.Assets = &assets{}
+}

gui/assets.go

@@ -0,0 +1,22 @@
+package gui
+
+import "errors"
+
+// AssetGetter provide an interface to retrieve binary asssets packaged with the binary.
+type AssetGetter interface {
+	// Get the asset by name. Returns an error if it does not exist, or if it otherwise
+	// runs into a problem retrieving it.
+	Get(name string) ([]byte, error)
+}
+
+// Assets holds the AssetFetcher which can retrieve assets for the binary
+var Assets AssetGetter
+
+// Asset retrieves an asset by name from the provisioned AssetGetter.
+func Asset(name string) ([]byte, error) {
+	if Assets == nil {
+		return nil, errors.New("no assets provided")
+	}
+
+	return Assets.Get(name)
+}

gui/gui.go

@@ -1,6 +1,5 @@
 package gui
 
-//go:generate go-bindata-assetfs -pkg gui assets/...
 
 import (
 	"bytes"