lnd+config: export config struct and LoadConfig

As a preparation to be moved to the lncfg package, the main struct and
functions related to configuration are exported.

chainregistry.go

@@ -160,7 +160,7 @@ type chainControl struct {
 // full-node, another backed by a running bitcoind full-node, and the other
 // backed by a running neutrino light client instance. When running with a
 // neutrino light client instance, `neutrinoCS` must be non-nil.
-func newChainControlFromConfig(cfg *config, chanDB *channeldb.DB,
+func newChainControlFromConfig(cfg *Config, chanDB *channeldb.DB,
 	privateWalletPw, publicWalletPw []byte, birthday time.Time,
 	recoveryWindow uint32, wallet *wallet.Wallet,
 	neutrinoCS *neutrino.ChainService) (*chainControl, error) {

config.go

@@ -238,11 +238,11 @@ type torConfig struct {
 	WatchtowerKeyPath string `long:"watchtowerkeypath" description:"The path to the private key of the watchtower onion service being created"`
 }
 
-// config defines the configuration options for lnd.
+// Config defines the configuration options for lnd.
 //
-// See loadConfig for further details regarding the configuration
+// See LoadConfig for further details regarding the configuration
 // loading+parsing process.
-type config struct {
+type Config struct {
 	ShowVersion bool `short:"V" long:"version" description:"Display version information and exit"`
 
 	LndDir       string `long:"lnddir" description:"The base directory that contains lnd's data, logs, configuration file, etc."`
@@ -365,7 +365,7 @@ type config struct {
 	AllowCircularRoute bool `long:"allow-circular-route" description:"If true, our node will allow htlc forwards that arrive and depart on the same channel."`
 }
 
-// loadConfig initializes and parses the config using a config file and command
+// LoadConfig initializes and parses the config using a config file and command
 // line options.
 //
 // The configuration proceeds as follows:
@@ -373,8 +373,8 @@ type config struct {
 // 	2) Pre-parse the command line to check for an alternative config file
 // 	3) Load configuration file overwriting defaults with any specified options
 // 	4) Parse CLI options and overwrite/add any specified options
-func loadConfig() (*config, error) {
-	defaultCfg := config{
+func LoadConfig() (*Config, error) {
+	defaultCfg := Config{
 		LndDir:          defaultLndDir,
 		ConfigFile:      defaultConfigFile,
 		DataDir:         defaultDataDir,

fundingmanager_test.go

@@ -3084,7 +3084,7 @@ func TestGetUpfrontShutdownScript(t *testing.T) {
 			}
 
 			// Set the command line option in config as needed.
-			cfg = &config{EnableUpfrontShutdown: test.localEnabled}
+			cfg = &Config{EnableUpfrontShutdown: test.localEnabled}
 
 			addr, err := getUpfrontShutdownScript(
 				&mockPeer, test.upfrontScript, test.getScript,

lnd.go

@@ -52,7 +52,7 @@ import (
 )
 
 var (
-	cfg              *config
+	cfg              *Config
 	registeredChains = newChainRegistry()
 
 	// networkDir is the path to the directory of the currently active
@@ -156,7 +156,7 @@ func Main(lisCfg ListenerCfg) error {
 
 	// Load the configuration, and parse any command line options. This
 	// function will also set up logging properly.
-	loadedConfig, err := loadConfig()
+	loadedConfig, err := LoadConfig()
 	if err != nil {
 		return err
 	}