Looks like CurrentPath() func is complete.

pkg/files/curpath.go

@@ -0,0 +1,21 @@
+package files
+
+import (
+	"net/url"
+	"strings"
+)
+
+func CurrentPath(path string) (curPath string) {
+	parts := strings.Split(path, "/")[1:]
+	curPath = "<a href=\"/\">root</a>"
+	for i, part := range parts {
+		var sb strings.Builder
+		sb.WriteString("/<a href=\"/")
+		sb.WriteString(strings.Join(parts[:i+1], "/"))
+		sb.WriteString("/\">")
+		sb.WriteString(url.PathEscape(part))
+		sb.WriteString("</a>")
+		curPath += sb.String()
+	}
+	return
+}