Export store.{ensureDataDir errEmptyHOME}

store/data-dir.go

@@ -7,16 +7,16 @@ import (
 )
 
 var (
-	errEmptyHOME = errors.New("Environment variable HOME is empty")
+	ErrEmptyHOME = errors.New("Environment variable HOME is empty")
 )
 
 // ensureDataDir ensures Elvish's data directory exists, creating it if
 // necessary. It returns the path to the data directory (never with a
 // trailing slash) and possible error.
-func ensureDataDir() (string, error) {
+func EnsureDataDir() (string, error) {
 	home := os.Getenv("HOME")
 	if home == "" {
-		return "", errEmptyHOME
+		return "", ErrEmptyHOME
 	}
 	home = strings.TrimRight(home, "/")
 	ddir := home + "/.elvish"

store/store.go

@@ -16,7 +16,7 @@ var createTable = map[string]string{}
 
 // DefaultDB returns the default database for storage.
 func DefaultDB() (*sql.DB, error) {
-	ddir, err := ensureDataDir()
+	ddir, err := EnsureDataDir()
 	if err != nil {
 		return nil, err
 	}