Add XDS_SERVER_ROOT_CFG_DIR env var support

By default xds-server uses $HOME/.xds/server directory to save all
config. This changes allows user to change this root directory by
defining XDS_SERVER_ROOT_CFG_DIR environment variable.

Change-Id: Iebde8dcf2d27b77671c7332bac04295d31659e24
Signed-off-by: Sebastien Douheret <sebastien.douheret@iot.bzh>

1 files changed, 3 insertions, 10 deletions

diff --git a/lib/xdsconfig/fileconfig.go b/lib/xdsconfig/fileconfig.go
index 86f39b5..b786a24 100644
--- a/lib/xdsconfig/fileconfig.go
+++ b/lib/xdsconfig/fileconfig.go
@@ -28,9 +28,6 @@ import (
 	common "gerrit.automotivelinux.org/gerrit/src/xds/xds-common.git/golib"
 )
 
-// ConfigDir Directory in user HOME directory where xds config will be saved
-var ConfigDir = path.Join(".xds", "server")
-
 const (
 	// GlobalConfigFilename Global config filename
 	GlobalConfigFilename = "server-config.json"
@@ -74,8 +71,8 @@ func readGlobalConfig(c *Config, confFile string) error {
 	if confFile != "" {
 		searchIn = append(searchIn, confFile)
 	}
-	if usr, err := user.Current(); err == nil {
-		searchIn = append(searchIn, path.Join(usr.HomeDir, ConfigDir, GlobalConfigFilename))
+	if _, err := user.Current(); err == nil {
+		searchIn = append(searchIn, path.Join(ConfigRootDir(), GlobalConfigFilename))
 	}
 
 	searchIn = append(searchIn, "/etc/xds/server/server-config.json")
@@ -172,11 +169,7 @@ func readGlobalConfig(c *Config, confFile string) error {
 }
 
 func configFilenameGet(cfgFile string) (string, error) {
-	usr, err := user.Current()
-	if err != nil {
-		return "", err
-	}
-	return path.Join(usr.HomeDir, ConfigDir, cfgFile), nil
+	return path.Join(ConfigRootDir(), cfgFile), nil
 }
 
 // FoldersConfigFilenameGet Return the FoldersConfig filename