s3 storage abstraction

util/storage.go

@@ -0,0 +1,36 @@
+package util
+
+import (
+	"io"
+	"os"
+	"pilosa/config"
+	"strings"
+
+	"github.com/kr/s3/s3util"
+)
+
+func init() {
+	access_key := config.GetString("AWS_ACCESS_KEY_ID")
+	secret := config.GetString("AWS_SECRET_ACCESS_KEY")
+
+	s3util.DefaultConfig.AccessKey = access_key
+	s3util.DefaultConfig.SecretKey = secret
+}
+
+func Open(s string) (io.ReadCloser, error) {
+	if isURL(s) {
+		return s3util.Open(s, nil)
+	}
+	return os.Open(s)
+}
+
+func Create(s string) (io.WriteCloser, error) {
+	if isURL(s) {
+		return s3util.Create(s, nil, nil)
+	}
+	return os.Create(s)
+}
+
+func isURL(s string) bool {
+	return strings.HasPrefix(s, "http://") || strings.HasPrefix(s, "https://")
+}