add cobra

add cobra

data/cmd/cmd.go

@@ -0,0 +1,66 @@
+package cmd
+
+import (
+	"data/config"
+	"fmt"
+	"os"
+	"public/tools"
+
+	"github.com/spf13/cobra"
+	"gopkg.in/go-playground/validator.v9"
+)
+
+var mysqlInfo config.MysqlDbInfo
+
+var rootCmd = &cobra.Command{
+	Use:   "main",
+	Short: "gorm mysql reflect tools",
+	Long:  `base on gorm tools for mysql database to golang struct`,
+	Run: func(cmd *cobra.Command, args []string) {
+		fmt.Println(tools.GetJsonStr(config.GetMysqlDbInfo()))
+		//开始做事情
+	},
+}
+
+// Execute adds all child commands to the root command and sets flags appropriately.
+// This is called by main.main(). It only needs to happen once to the rootCmd.
+func Execute() {
+	if err := rootCmd.Execute(); err != nil {
+		os.Exit(1)
+	}
+}
+
+func init() {
+	cobra.OnInitialize(initConfig)
+
+	rootCmd.PersistentFlags().StringVarP(&mysqlInfo.Host, "host", "H", "", "数据库地址.")
+	rootCmd.MarkFlagRequired("host")
+	rootCmd.PersistentFlags().StringVarP(&mysqlInfo.Username, "user", "u", "", "用户名.")
+	rootCmd.MarkFlagRequired("user")
+
+	rootCmd.PersistentFlags().StringVarP(&mysqlInfo.Password, "password", "p", "", "密码.")
+	rootCmd.MarkFlagRequired("password")
+
+	rootCmd.PersistentFlags().StringVarP(&mysqlInfo.Database, "database", "d", "", "数据库名")
+	rootCmd.MarkFlagRequired("database")
+
+	rootCmd.Flags().IntVar(&mysqlInfo.Port, "port", 3306, "端口号")
+}
+
+// initConfig reads in config file and ENV variables if set.
+func initConfig() {
+	validate := validator.New()
+	err := validate.Struct(mysqlInfo)
+	if err != nil {
+		err1 := validate.Struct(config.GetMysqlDbInfo())
+		if err1 != nil {
+			fmt.Println("Can't read cmd: using （-h, --help) to get more imfo")
+			fmt.Println("error info: ", err, err1)
+			os.Exit(1)
+		} else {
+			fmt.Println("using default config info.")
+		}
+	} else {
+		config.SetMysqlDbInfo(&mysqlInfo)
+	}
+}