From bda047eef7cf012e36820070ab8f8e9fa7b04612 Mon Sep 17 00:00:00 2001
From: Brad Fitzpatrick <brad@danga.com>
Date: Fri, 31 Jan 2014 12:21:04 +0100
Subject: [PATCH] camtool: add env camsrcroot

Change-Id: I701e81ab732d7574a227e8f01ca09ac91c608481
---
 cmd/camtool/env.go | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/cmd/camtool/env.go b/cmd/camtool/env.go
index 7ec06afc8..dc5e015e9 100644
--- a/cmd/camtool/env.go
+++ b/cmd/camtool/env.go
@@ -20,6 +20,7 @@ import (
 	"flag"
 	"fmt"
 	"os"
+	"path/filepath"
 
 	"camlistore.org/pkg/cmdmain"
 	"camlistore.org/pkg/osutil"
@@ -29,6 +30,7 @@ var envMap = map[string]func() string{
 	"configdir":    osutil.CamliConfigDir,
 	"clientconfig": osutil.UserClientConfigPath,
 	"serverconfig": osutil.UserServerConfigPath,
+	"camsrcroot":   srcRoot,
 }
 
 type envCmd struct{}
@@ -64,3 +66,12 @@ func (c *envCmd) RunCommand(args []string) error {
 	fmt.Println(fn())
 	return nil
 }
+
+func srcRoot() string {
+	for _, dir := range filepath.SplitList(os.Getenv("GOPATH")) {
+		if d := filepath.Join(dir, "src", "camlistore.org"); osutil.DirExists(d) {
+			return d
+		}
+	}
+	return ""
+}