kaspad/apiserver/config/config.go
Ori Newman 2429b623fc [NOD-327] Add --migrate cli flag to API server (#407)
* [NOD-327] Add --migrate cli flag to API server

* [NOD-327] Change log messages

* [NOD-327] Remove `required` flag from API server RPC CLI arguments

* [NOD-327] Add database version in migrations logs
2019-09-18 13:51:20 +03:00

79 lines
2.6 KiB
Go

package config
import (
"errors"
"github.com/daglabs/btcd/apiserver/logger"
"github.com/daglabs/btcd/util"
"github.com/jessevdk/go-flags"
"path/filepath"
)
const (
defaultLogFilename = "apiserver.log"
defaultErrLogFilename = "apiserver_err.log"
)
var (
// Default configuration options
defaultLogDir = util.AppDataDir("apiserver", false)
defaultDBAddr = "localhost:3306"
defaultHTTPListen = "0.0.0.0:8080"
)
// Config defines the configuration options for the API server.
type Config struct {
LogDir string `long:"logdir" description:"Directory to log output."`
RPCUser string `short:"u" long:"rpcuser" description:"RPC username"`
RPCPassword string `short:"P" long:"rpcpass" default-mask:"-" description:"RPC password"`
RPCServer string `short:"s" long:"rpcserver" description:"RPC server to connect to"`
RPCCert string `short:"c" long:"rpccert" description:"RPC server certificate chain for validation"`
DisableTLS bool `long:"notls" description:"Disable TLS"`
DBAddress string `long:"dbaddress" description:"Database address"`
DBUser string `long:"dbuser" description:"Database user" required:"true"`
DBPassword string `long:"dbpass" description:"Database password" required:"true"`
DBName string `long:"dbname" description:"Database name" required:"true"`
HTTPListen string `long:"listen" description:"HTTP address to listen on (default: 0.0.0.0:8080)"`
Migrate bool `long:"migrate" description:"Migrate the database to the latest version. The server will not start when using this flag."`
}
// Parse parses the CLI arguments and returns a config struct.
func Parse() (*Config, error) {
cfg := &Config{
LogDir: defaultLogDir,
DBAddress: defaultDBAddr,
HTTPListen: defaultHTTPListen,
}
parser := flags.NewParser(cfg, flags.PrintErrors|flags.HelpFlag)
_, err := parser.Parse()
if err != nil {
return nil, err
}
if !cfg.Migrate {
if cfg.RPCUser == "" {
return nil, errors.New("--rpcuser is required if --migrate flag is not used")
}
if cfg.RPCPassword == "" {
return nil, errors.New("--rpcpass is required if --migrate flag is not used")
}
if cfg.RPCServer == "" {
return nil, errors.New("--rpcserver is required if --migrate flag is not used")
}
}
if cfg.RPCCert == "" && !cfg.DisableTLS {
return nil, errors.New("--notls has to be disabled if --cert is used")
}
if cfg.RPCCert != "" && cfg.DisableTLS {
return nil, errors.New("--cert should be omitted if --notls is used")
}
logFile := filepath.Join(cfg.LogDir, defaultLogFilename)
errLogFile := filepath.Join(cfg.LogDir, defaultErrLogFilename)
logger.InitLog(logFile, errLogFile)
return cfg, nil
}