add Charset support for mysql of gdb package; fix issue for glog for log writing failed when the folder path wa deleted

g/database/gdb/gdb.go

@@ -269,6 +269,10 @@ func (bs *dbBase) getSqlDb(master bool) (sqlDb *sql.DB, err error) {
     if err != nil {
         return nil, err
     }
+    // 默认值设定
+    if node.Charset == "" {
+        node.Charset = "utf8"
+    }
     v := bs.cache.GetOrSetFuncLock(node.String(), func() interface{} {
         sqlDb, err = bs.db.Open(node)
         if err != nil {

g/database/gdb/gdb_mysql.go

@@ -23,7 +23,8 @@ func (db *dbMysql) Open (config *ConfigNode) (*sql.DB, error) {
     if config.Linkinfo != "" {
         source = config.Linkinfo
     } else {
-        source = fmt.Sprintf("%s:%s@tcp(%s:%s)/%s?multiStatements=true", config.User, config.Pass, config.Host, config.Port, config.Name)
+        source = fmt.Sprintf("%s:%s@tcp(%s:%s)/%s?charset=%s&multiStatements=true",
+            config.User, config.Pass, config.Host, config.Port, config.Name, config.Charset)
     }
     if db, err := sql.Open("mysql", source); err == nil {
         return db, nil

g/os/glog/glog_logger.go

@@ -141,6 +141,13 @@ func (l *Logger) getFilePointer() *gfpool.File {
         file, _ := gregex.ReplaceStringFunc(`{.+?}`, l.file.Val(), func(s string) string {
             return gtime.Now().Format(strings.Trim(s, "{}"))
         })
+        // 如果日志目录不存在则创建目录路径
+        if !gfile.Exists(path) {
+            if err := gfile.Mkdir(path); err != nil {
+                fmt.Fprintln(os.Stderr, fmt.Sprintf(`[glog] mkdir "%s" failed: %s`, path, err.Error()))
+                return nil
+            }
+        }
         fpath   := path + gfile.Separator + file
         if fp, err := gfpool.Open(fpath, gDEFAULT_FILE_POOL_FLAGS, gDEFAULT_FPOOL_PERM, gDEFAULT_FPOOL_EXPIRE); err == nil {
             return fp
@@ -156,7 +163,7 @@ func (l *Logger) SetPath(path string) error {
     // 如果目录不存在，则递归创建
     if !gfile.Exists(path) {
        if err := gfile.Mkdir(path); err != nil {
-           fmt.Fprintln(os.Stderr, fmt.Sprintf(`glog mkdir "%s" failed: %s`, path, err.Error()))
+           fmt.Fprintln(os.Stderr, fmt.Sprintf(`[glog] mkdir "%s" failed: %s`, path, err.Error()))
            return err
        }
     }

geg/os/glog/glog_pool.go

@@ -0,0 +1,19 @@
+package main
+
+import (
+    "gitee.com/johng/gf/g/os/glog"
+    "gitee.com/johng/gf/g/os/gtime"
+    "time"
+)
+
+// 测试删除日志文件是否会重建日志文件
+func main() {
+    path := "/Users/john/Temp/test"
+    glog.SetPath(path)
+    for {
+        glog.Println(gtime.Now().String())
+        time.Sleep(time.Second)
+    }
+}
+
+