From b916c559e7c49356c21f5e3ae6f2bdf7bd169896 Mon Sep 17 00:00:00 2001
From: Andriy Lytvynov <lytvynov.a.v@gmail.com>
Date: Thu, 23 Oct 2014 09:34:01 -0700
Subject: [PATCH] cmd/godoc: do not apply package path restrictions onto GOROOT
 when indexing.

Fixes golang/go#6925.

LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/156540043
---
 godoc/dirtrees.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/godoc/dirtrees.go b/godoc/dirtrees.go
index af8b02f0..a55b324f 100644
--- a/godoc/dirtrees.go
+++ b/godoc/dirtrees.go
@@ -179,9 +179,12 @@ func (c *Corpus) newDirectory(root string, maxDepth int) *Directory {
 	case err != nil:
 		log.Printf("newDirectory(%s): %s", root, err)
 		return nil
-	case !isPkgDir(d):
+	case root != "/" && !isPkgDir(d):
 		log.Printf("newDirectory(%s): not a package directory", root)
 		return nil
+	case root == "/" && !d.IsDir():
+		log.Printf("newDirectory(%s): not a directory", root)
+		return nil
 	}
 	if maxDepth < 0 {
 		maxDepth = 1e6 // "infinity"