httpcaddyfile: Minor fixes to parsing storage options

1 files changed, 23 insertions, 6 deletions

diff --git a/modules/filestorage/filestorage.go b/modules/filestorage/filestorage.go
index 6e688ef..629dc27 100644
--- a/modules/filestorage/filestorage.go
+++ b/modules/filestorage/filestorage.go
@@ -48,15 +48,32 @@ func (s *FileStorage) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
 	if !d.Next() {
 		return d.Err("expected tokens")
 	}
-	for nesting := d.Nesting(); d.NextBlock(nesting); {
-		if !d.NextArg() {
-			return d.ArgErr()
-		}
+	if d.NextArg() {
 		s.Root = d.Val()
-		if d.NextArg() {
-			return d.ArgErr()
+	}
+	if d.NextArg() {
+		return d.ArgErr()
+	}
+	for nesting := d.Nesting(); d.NextBlock(nesting); {
+		switch d.Val() {
+		case "root":
+			if !d.NextArg() {
+				return d.ArgErr()
+			}
+			if s.Root != "" {
+				return d.Err("root already set")
+			}
+			s.Root = d.Val()
+			if d.NextArg() {
+				return d.ArgErr()
+			}
+		default:
+			return d.Errf("unrecognized parameter '%s'", d.Val())
 		}
 	}
+	if s.Root == "" {
+		return d.Err("missing root path (to use default, omit storage config entirely)")
+	}
 	return nil
 }