add vendor packages避免用户网络太慢无法下载编译

vendor/github.com/zr-hebo/util-db/conn_info.go

@@ -0,0 +1,93 @@
+package db
+
+import (
+	"database/sql"
+	"fmt"
+	"reflect"
+	"regexp"
+	"runtime/debug"
+	"strings"
+)
+
+// GetMySQLConnInfoIgnoreErr 获取MySQL连接的字符串显示，忽略错误信息
+func GetMySQLConnInfoIgnoreErr(conn *sql.DB) (connInfo string) {
+	connInfo, _ = GetMySQLConnInfo(conn)
+	return
+}
+
+// GetMySQLConnInfo 获取MySQL连接的字符串显示
+func GetMySQLConnInfo(conn *sql.DB) (connInfo string, err error) {
+	defer func() {
+		if panicRecover := recover(); panicRecover != nil {
+			err = fmt.Errorf(
+				"get mysql connection info failed for %v", panicRecover)
+			debug.PrintStack()
+		}
+	}()
+
+	cv := reflect.ValueOf(conn).Elem()
+	// fmt.Printf("%#v\n", cv)
+
+	dsnv := cv.FieldByName("dsn")
+	dsnStr := fmt.Sprint(dsnv)
+	dsnInfo, err := resolveDsn(dsnStr)
+	if err != nil {
+		return
+	}
+
+	fcsv := cv.FieldByName("dep")
+	// fmt.Printf("%#v\n", fcsv)
+
+	lports := make([]string, 0)
+	for _, key := range fcsv.MapKeys() {
+		// fcv := fcsv.Index(0).Elem()
+		depSet := fcsv.MapIndex(key).MapKeys()
+		if len(depSet) < 1 {
+			continue
+		}
+
+		fcv := depSet[0].Elem().Elem()
+		// fmt.Printf("%#v\n", fcv)
+		// fmt.Printf("%#v\n", fcv.Elem())
+
+		mc := fcv.FieldByName("ci").Elem().Elem()
+		// fmt.Printf("%#v", mc)
+
+		nc := mc.FieldByName("netConn").Elem().Elem()
+		// fmt.Printf("%#v", nc)
+
+		ic := nc.FieldByName("conn")
+		// fmt.Printf("%#v", conn)
+
+		fd := ic.FieldByName("fd").Elem()
+		// fmt.Printf("%#v", fd)
+
+		la := fd.FieldByName("laddr").Elem().Elem()
+		// fmt.Printf("%#v", la)
+
+		lport := la.FieldByName("Port")
+
+		lports = append(lports, fmt.Sprint(lport))
+		// fmt.Printf("%#v", lport)
+	}
+
+	connInfo = fmt.Sprintf(
+		"127.0.0.1:%s <==> %s:%s", strings.Join(lports, ", "),
+		dsnInfo["host"], dsnInfo["port"])
+	return
+}
+
+func resolveDsn(dsn string) (info map[string]string, err error) {
+	info = make(map[string]string)
+
+	pattern := regexp.MustCompile(`.*:.*@tcp\((?P<host>[\w.]+):(?P<port>\d+)\)/`)
+
+	match := pattern.FindStringSubmatch(dsn)
+	for idx, name := range pattern.SubexpNames() {
+		if idx > 0 && idx <= len(match) {
+			info[name] = match[idx]
+		}
+	}
+
+	return
+}