Move config path cli parameter to base

cli/access.go

 }
 
 type Access struct {
-	base `kong:"-"`
+	base
 
 	PublicIPv4 net.IP `kong:"help='Public IPv4 address for proxy. By default it is resolved via remote website',name='ipv4',short='i'"`   // nolint: lll
 	PublicIPv6 net.IP `kong:"help='Public IPv6 address for proxy. By default it is resolved via remote website',name='ipv6',short='I'"`   // nolint: lll
 	Port       uint   `kong:"help='Port number. Default port is taken from configuration file, bind-to parameter',type:'uint',short='p'"` // nolint: lll
 	Hex        bool   `kong:"help='Print secret in hex encoding.',short='x'"`
-
-	ConfigPath string `kong:"arg,required,type='existingfile',help='Path to the configuration file.',name='config-path'"` // nolint: lll
 }
 
 func (c *Access) Run(cli *CLI, version string) error {
-	if err := c.ReadConfig(cli.Access.ConfigPath, version); err != nil {
+	if err := c.ReadConfig(version); err != nil {
 		return fmt.Errorf("cannot init config: %w", err)
 	}
 

cli/base.go

 )
 
 type base struct {
-	Network mtglib.Network
-	Config  *config.Config
+	ConfigPath string `kong:"arg,required,type='existingfile',help='Path to the configuration file.',name='config-path'"` // nolint: lll
+
+	Network mtglib.Network `kong:"-"`
+	Config  *config.Config `kong:"-"`
 }
 
-func (b *base) ReadConfig(path, version string) error {
-	content, err := ioutil.ReadFile(path)
+func (b *base) ReadConfig(version string) error {
+	content, err := ioutil.ReadFile(b.ConfigPath)
 	if err != nil {
 		return fmt.Errorf("cannot read config file: %w", err)
 	}

cli/base_internal_test.go

 }
 
 func (suite *BaseTestSuite) TestReadConfigNok() {
-	suite.Error(suite.b.ReadConfig(filepath.Join("testdata", "unknown"), "dev"))
+	suite.b.ConfigPath = filepath.Join("testdata", "unknown")
+	suite.Error(suite.b.ReadConfig("dev"))
 }
 
 func (suite *BaseTestSuite) TestReadConfig() {
-	suite.NoError(suite.b.ReadConfig(filepath.Join("testdata", "minimal.toml"), "dev"))
+	suite.b.ConfigPath = filepath.Join("testdata", "minimal.toml")
+	suite.NoError(suite.b.ReadConfig("dev"))
 }
 
 func TestBase(t *testing.T) {

cli/generate_secret.go

 )
 
 type GenerateSecret struct {
-	base `kong:"-"`
-
 	HostName string `kong:"arg,required,help='Hostname to use for domain fronting.',name='hostname'"`
 	Hex      bool   `kong:"help='Print secret in hex encoding.',short='x'"`
 }