Can I use EnvironmentFile argument in systemd?

[mcauto]

I want to use viper that is configuration module.

viper.SetConfigName("config") // name of config file (without extension)
viper.AddConfigPath("/etc/appname/")   // path to look for the config file in
viper.AddConfigPath("$HOME/.appname")  // call multiple times to add many search paths
viper.AddConfigPath(".")               // optionally look for config in the working directory
err := viper.ReadInConfig() // Find and read the config file
if err != nil { // Handle errors reading the config file
	panic(fmt.Errorf("Fatal error config file: %s \n", err))
}

viper support environment path.

so I modified systemdConfig variable

var systemDConfig = `[Unit]
Description={{.Description}}
Requires={{.Dependencies}}
After={{.Dependencies}}

[Service]
EnvironmentFile={{.Path}}/.env
PIDFile=/var/run/{{.Name}}.pid
ExecStartPre=/bin/rm -f /var/run/{{.Name}}.pid
ExecStart={{.Path}} {{.Args}}
Restart=on-failure

[Install]
WantedBy=multi-user.target

However Path variable is including file name. not directory.

I want to get only directory path.