Add command to initialize client-config

cmd/ezshare.go

@@ -83,6 +83,11 @@ func main() {
 						ArgsUsage: "PATH [PATH]..",
 						Action:    ActionClientUpload,
 					},
+					{
+						Name:   "config-init",
+						Usage:  "Initialize default config",
+						Action: ActionInitConfig,
+					},
 				},
 			},
 			{
@@ -326,6 +331,11 @@ func ActionGencerts(c *cli.Context) error {
 	return certs.GenAllCerts(outDir)
 }
 
+func ActionInitConfig(c *cli.Context) error {
+	defaultCfg := config.FromDefault()
+	return defaultCfg.ToDefaultFile()
+}
+
 func getConfig(c *cli.Context) (*config.Config, error) {
 	if c.IsSet("config") {
 		cfgPath := c.String("config")