support LevelDB key/value database.

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>

config/config.go

@@ -65,10 +65,11 @@ type SectionLog struct {
 
 // SectionStat is sub seciont of config.
 type SectionStat struct {
-	Engine string        `yaml:"engine"`
-	Redis  SectionRedis  `yaml:"redis"`
-	BoltDB SectionBoltDB `yaml:"boltdb"`
-	BuntDB SectionBuntDB `yaml:"buntdb"`
+	Engine  string         `yaml:"engine"`
+	Redis   SectionRedis   `yaml:"redis"`
+	BoltDB  SectionBoltDB  `yaml:"boltdb"`
+	BuntDB  SectionBuntDB  `yaml:"buntdb"`
+	LevelDB SectionLevelDB `yaml:"leveldb"`
 }
 
 // SectionRedis is sub seciont of config.
@@ -89,6 +90,11 @@ type SectionBuntDB struct {
 	Path string `yaml:"path"`
 }
 
+// SectionLevelDB is sub seciont of config.
+type SectionLevelDB struct {
+	Path string `yaml:"path"`
+}
+
 // SectionPID is sub seciont of config.
 type SectionPID struct {
 	Enabled  bool   `yaml:"enabled"`
@@ -148,6 +154,7 @@ func BuildDefaultPushConf() ConfYaml {
 	conf.Stat.BoltDB.Bucket = "gorush"
 
 	conf.Stat.BuntDB.Path = "gorush.db"
+	conf.Stat.LevelDB.Path = "gorush.db"
 
 	return conf
 }

config/config.yml

@@ -49,3 +49,5 @@ stat:
     bucket: "gorush"
   buntdb:
     path: "gorush.db"
+  leveldb:
+    path: "gorush.db"

config/config_test.go

@@ -102,6 +102,7 @@ func (suite *ConfigTestSuite) TestValidateConfDefault() {
 	assert.Equal(suite.T(), "gorush", suite.ConfGorushDefault.Stat.BoltDB.Bucket)
 
 	assert.Equal(suite.T(), "gorush.db", suite.ConfGorushDefault.Stat.BuntDB.Path)
+	assert.Equal(suite.T(), "gorush.db", suite.ConfGorushDefault.Stat.LevelDB.Path)
 }
 
 func (suite *ConfigTestSuite) TestValidateConf() {
@@ -154,6 +155,7 @@ func (suite *ConfigTestSuite) TestValidateConf() {
 	assert.Equal(suite.T(), "gorush", suite.ConfGorush.Stat.BoltDB.Bucket)
 
 	assert.Equal(suite.T(), "gorush.db", suite.ConfGorush.Stat.BuntDB.Path)
+	assert.Equal(suite.T(), "gorush.db", suite.ConfGorush.Stat.LevelDB.Path)
 }
 
 func TestConfigTestSuite(t *testing.T) {