From 6a8dc4ed40822ce940caba73e78d0b7a4ea99fa8 Mon Sep 17 00:00:00 2001
From: Alan Donovan <adonovan@google.com>
Date: Thu, 30 Apr 2015 13:29:28 -0400
Subject: [PATCH] oracle: report a better error if query is outside
 GOROOT/GOPATH

Change-Id: I2f724b5015021be8bf1fccb518f17cc011d687e8
Reviewed-on: https://go-review.googlesource.com/9546
Reviewed-by: David Chase <drchase@google.com>
---
 oracle/what.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/oracle/what.go b/oracle/what.go
index ca1a7fff2d6..b4d70aad2c7 100644
--- a/oracle/what.go
+++ b/oracle/what.go
@@ -152,7 +152,8 @@ func guessImportPath(filename string, buildContext *build.Context) (srcdir, impo
 		}
 	}
 	if srcdir == "" {
-		err = fmt.Errorf("can't find package for file %s", filename)
+		err = fmt.Errorf("directory %s is not beneath GOROOT or GOPATH: %s",
+			filepath.Dir(absFile), strings.Join(buildContext.SrcDirs(), ", "))
 	}
 	return
 }