From e9a33688e17b31c330a0c712b67a5a8621b206a7 Mon Sep 17 00:00:00 2001
From: Kegan Dougal <kegan@matrix.org>
Date: Thu, 4 Jun 2020 10:46:27 +0100
Subject: [PATCH] Missing file

---
 internal/sqlutil/uri.go | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 internal/sqlutil/uri.go

diff --git a/internal/sqlutil/uri.go b/internal/sqlutil/uri.go
new file mode 100644
index 000000000..f72e02426
--- /dev/null
+++ b/internal/sqlutil/uri.go
@@ -0,0 +1,24 @@
+package sqlutil
+
+import (
+	"fmt"
+	"net/url"
+)
+
+// ParseFileURI returns the filepath in the given file: URI. Specifically, this will handle
+// both relative (file:foo.db) and absolute (file:///path/to/foo) paths.
+func ParseFileURI(dataSourceName string) (string, error) {
+	uri, err := url.Parse(dataSourceName)
+	if err != nil {
+		return "", err
+	}
+	var cs string
+	if uri.Opaque != "" { // file:filename.db
+		cs = uri.Opaque
+	} else if uri.Path != "" { // file:///path/to/filename.db
+		cs = uri.Path
+	} else {
+		return "", fmt.Errorf("invalid file uri: %s", dataSourceName)
+	}
+	return cs, nil
+}