From aaee01b1a7561e1df5eb6bfdc24341459d2d277b Mon Sep 17 00:00:00 2001
From: Janos Dobronszki <dobronszki@gmail.com>
Date: Tue, 7 Apr 2020 15:19:45 +0200
Subject: [PATCH] Use file store by default (as opposed to memory store)
 (#1498)

* Use file store by default (as opposed to memory store)

* Default table for file store
---
 defaults.go        |  4 ++--
 store/file/file.go | 17 +++++++++++++----
 2 files changed, 15 insertions(+), 6 deletions(-)

diff --git a/defaults.go b/defaults.go
index ca5b1e57..10408f90 100644
--- a/defaults.go
+++ b/defaults.go
@@ -10,7 +10,7 @@ import (
 	gcli "github.com/micro/go-micro/v2/client/grpc"
 	memTrace "github.com/micro/go-micro/v2/debug/trace/memory"
 	gsrv "github.com/micro/go-micro/v2/server/grpc"
-	memStore "github.com/micro/go-micro/v2/store/memory"
+	fileStore "github.com/micro/go-micro/v2/store/file"
 )
 
 func init() {
@@ -19,7 +19,7 @@ func init() {
 	// default server
 	server.DefaultServer = gsrv.NewServer()
 	// default store
-	store.DefaultStore = memStore.NewStore()
+	store.DefaultStore = fileStore.NewStore()
 	// set default trace
 	trace.DefaultTracer = memTrace.NewTracer()
 }
diff --git a/store/file/file.go b/store/file/file.go
index 2c6b6092..cf061fd7 100644
--- a/store/file/file.go
+++ b/store/file/file.go
@@ -17,6 +17,16 @@ import (
 	"github.com/pkg/errors"
 )
 
+var (
+	// DefaultDatabase is the namespace that the bbolt store
+	// will use if no namespace is provided.
+	DefaultDatabase = "micro"
+	// DefaultTable when none is specified
+	DefaultTable = "micro"
+	// DefaultDir is the default directory for bbolt files
+	DefaultDir = os.TempDir()
+)
+
 // NewStore returns a memory store
 func NewStore(opts ...store.Option) store.Store {
 	s := &fileStore{
@@ -36,18 +46,17 @@ type fileStore struct {
 }
 
 func (m *fileStore) Init(opts ...store.Option) error {
-	// m.store.Flush()
 	for _, o := range opts {
 		o(&m.options)
 	}
 	if m.options.Database == "" {
-		m.options.Database = "default"
+		m.options.Database = DefaultDatabase
 	}
 	if m.options.Table == "" {
 		// bbolt requires bucketname to not be empty
-		m.options.Table = "default"
+		m.options.Table = DefaultTable
 	}
-	dir := filepath.Join(os.TempDir(), "micro")
+	dir := filepath.Join(DefaultDir, "micro")
 	fname := m.options.Database + ".db"
 	_ = os.Mkdir(dir, 0700)
 	m.dir = dir