Initial implementation of an elasticsearch indexer in Go

Closes #1 (closed)

indexer/blob.go

@@ -84,7 +84,8 @@ func (i *Indexer) BuildBlob(file *object.File, commitSHA string) (*Blob, error)
 		return nil, skipBinaryBlob
 	}
-	content := string(b)
+	content := tryEncodeBytes(b)
+	filename := tryEncodeString(file.Name)
 	return &Blob{
 		Type:      "blob",
@@ -93,9 +94,9 @@ func (i *Indexer) BuildBlob(file *object.File, commitSHA string) (*Blob, error)
 		RepoID:    parentID,
 		CommitSHA: commitSHA,
 		Content:   content,
-		Path:      file.Name,
-		Filename:  file.Name,
-		Language:  DetectLanguage(file.Name, b),
+		Path:      filename,
+		Filename:  filename,
+		Language:  DetectLanguage(filename, b),
 	}, nil
 }