fix(database/gdb): unix socket connection support for mysql

contrib/drivers/mysql/mysql_open.go

@@ -9,7 +9,6 @@ package mysql
 import (
 	"database/sql"
 	"fmt"
-
 	"net/url"
 	"strings"
 
@@ -23,9 +22,21 @@ import (
 // Note that it converts time.Time argument to local timezone in default.
 func (d *Driver) Open(config *gdb.ConfigNode) (db *sql.DB, err error) {
 	var (
-		source               string
+		source               = configNodeToSource(config)
 		underlyingDriverName = "mysql"
 	)
+	if db, err = sql.Open(underlyingDriverName, source); err != nil {
+		err = gerror.WrapCodef(
+			gcode.CodeDbOperationError, err,
+			`sql.Open failed for driver "%s" by source "%s"`, underlyingDriverName, source,
+		)
+		return nil, err
+	}
+	return
+}
+
+func configNodeToSource(config *gdb.ConfigNode) string {
+	var source string
 	// [username[:password]@][protocol[(address)]]/dbname[?param1=value1&...&paramN=valueN]
 	if config.Link != "" {
 		// ============================================================================
@@ -37,10 +48,13 @@ func (d *Driver) Open(config *gdb.ConfigNode) (db *sql.DB, err error) {
 			source, _ = gregex.ReplaceString(`/([\w\.\-]+)+`, "/"+config.Name, source)
 		}
 	} else {
-		// TODO: Do not set charset when charset is not specified (in v2.5.0)
+		var portStr string
+		if config.Port != "" {
+			portStr = ":" + config.Port
+		}
 		source = fmt.Sprintf(
-			"%s:%s@%s(%s:%s)/%s?charset=%s",
-			config.User, config.Pass, config.Protocol, config.Host, config.Port, config.Name, config.Charset,
+			"%s:%s@%s(%s%s)/%s?charset=%s",
+			config.User, config.Pass, config.Protocol, config.Host, portStr, config.Name, config.Charset,
 		)
 		if config.Timezone != "" {
 			if strings.Contains(config.Timezone, "/") {
@@ -52,12 +66,5 @@ func (d *Driver) Open(config *gdb.ConfigNode) (db *sql.DB, err error) {
 			source = fmt.Sprintf("%s&%s", source, config.Extra)
 		}
 	}
-	if db, err = sql.Open(underlyingDriverName, source); err != nil {
-		err = gerror.WrapCodef(
-			gcode.CodeDbOperationError, err,
-			`sql.Open failed for driver "%s" by source "%s"`, underlyingDriverName, source,
-		)
-		return nil, err
-	}
-	return
+	return source
 }

contrib/drivers/mysql/mysql_z_unit_internal_test.go

@@ -0,0 +1,30 @@
+// Copyright GoFrame Author(https://goframe.org). All Rights Reserved.
+//
+// This Source Code Form is subject to the terms of the MIT License.
+// If a copy of the MIT was not distributed with this file,
+// You can obtain one at https://github.com/gogf/gf.
+
+package mysql
+
+import (
+	"testing"
+
+	"github.com/gogf/gf/v2/database/gdb"
+	"github.com/gogf/gf/v2/test/gtest"
+)
+
+func Test_configNodeToSource(t *testing.T) {
+	gtest.C(t, func(t *gtest.T) {
+		configNode := &gdb.ConfigNode{
+			Host:     "/tmp/mysql.sock",
+			Port:     "",
+			User:     "username",
+			Pass:     "password",
+			Name:     "dbname",
+			Type:     "mysql",
+			Protocol: "unix",
+		}
+		source := configNodeToSource(configNode)
+		t.Assert(source, "username:password@unix(/tmp/mysql.sock)/dbname?charset=")
+	})
+}

database/gdb/gdb_z_mysql_internal_test.go

@@ -232,7 +232,7 @@ func Test_parseConfigNodeLink_WithType(t *testing.T) {
 		t.Assert(newNode.Charset, defaultCharset)
 		t.Assert(newNode.Protocol, `tcp`)
 	})
-	// #3755
+	// https://github.com/gogf/gf/issues/3755
 	gtest.C(t, func(t *gtest.T) {
 		node := &ConfigNode{
 			Link: "mysql:user:pwd@tcp(rdsid.mysql.rds.aliyuncs.com)/dbname?charset=utf8&loc=Local",
@@ -248,6 +248,22 @@ func Test_parseConfigNodeLink_WithType(t *testing.T) {
 		t.Assert(newNode.Charset, `utf8`)
 		t.Assert(newNode.Protocol, `tcp`)
 	})
+	// https://github.com/gogf/gf/issues/3862
+	gtest.C(t, func(t *gtest.T) {
+		node := &ConfigNode{
+			Link: "mysql:username:password@unix(/tmp/mysql.sock)/dbname",
+		}
+		newNode := parseConfigNodeLink(node)
+		t.Assert(newNode.Type, `mysql`)
+		t.Assert(newNode.User, `username`)
+		t.Assert(newNode.Pass, `password`)
+		t.Assert(newNode.Host, `/tmp/mysql.sock`)
+		t.Assert(newNode.Port, ``)
+		t.Assert(newNode.Name, `dbname`)
+		t.Assert(newNode.Extra, ``)
+		t.Assert(newNode.Charset, `utf8`)
+		t.Assert(newNode.Protocol, `unix`)
+	})
 }
 
 func Test_Func_doQuoteWord(t *testing.T) {