mirror of
https://github.com/kaspanet/kaspad.git
synced 2025-03-30 15:08:33 +00:00
117 lines
3.6 KiB
Go
117 lines
3.6 KiB
Go
// Copyright (c) 2013-2016 The btcsuite developers
|
|
// Use of this source code is governed by an ISC
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package main
|
|
|
|
import (
|
|
"fmt"
|
|
"github.com/kaspanet/kaspad/config"
|
|
"github.com/pkg/errors"
|
|
"os"
|
|
"path/filepath"
|
|
"strings"
|
|
|
|
flags "github.com/jessevdk/go-flags"
|
|
"github.com/kaspanet/kaspad/database"
|
|
_ "github.com/kaspanet/kaspad/database/ffldb"
|
|
"github.com/kaspanet/kaspad/util"
|
|
)
|
|
|
|
const (
|
|
minCandidates = 1
|
|
maxCandidates = 20
|
|
defaultNumCandidates = 5
|
|
defaultDbType = "ffldb"
|
|
)
|
|
|
|
var (
|
|
btcdHomeDir = util.AppDataDir("btcd", false)
|
|
defaultDataDir = filepath.Join(btcdHomeDir, "data")
|
|
knownDbTypes = database.SupportedDrivers()
|
|
activeConfig *ConfigFlags
|
|
)
|
|
|
|
// ActiveConfig returns the active configuration struct
|
|
func ActiveConfig() *ConfigFlags {
|
|
return activeConfig
|
|
}
|
|
|
|
// ConfigFlags defines the configuration options for findcheckpoint.
|
|
//
|
|
// See loadConfig for details on the configuration load process.
|
|
type ConfigFlags struct {
|
|
DataDir string `short:"b" long:"datadir" description:"Location of the btcd data directory"`
|
|
DbType string `long:"dbtype" description:"Database backend to use for the Block Chain"`
|
|
NumCandidates int `short:"n" long:"numcandidates" description:"Max num of checkpoint candidates to show {1-20}"`
|
|
UseGoOutput bool `short:"g" long:"gooutput" description:"Display the candidates using Go syntax that is ready to insert into the btcchain checkpoint list"`
|
|
config.NetworkFlags
|
|
}
|
|
|
|
// validDbType returns whether or not dbType is a supported database type.
|
|
func validDbType(dbType string) bool {
|
|
for _, knownType := range knownDbTypes {
|
|
if dbType == knownType {
|
|
return true
|
|
}
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
// loadConfig initializes and parses the config using command line options.
|
|
func loadConfig() (*ConfigFlags, []string, error) {
|
|
// Default config.
|
|
activeConfig = &ConfigFlags{
|
|
DataDir: defaultDataDir,
|
|
DbType: defaultDbType,
|
|
NumCandidates: defaultNumCandidates,
|
|
}
|
|
|
|
// Parse command line options.
|
|
parser := flags.NewParser(&activeConfig, flags.Default)
|
|
remainingArgs, err := parser.Parse()
|
|
if err != nil {
|
|
if e, ok := err.(*flags.Error); !ok || e.Type != flags.ErrHelp {
|
|
parser.WriteHelp(os.Stderr)
|
|
}
|
|
return nil, nil, err
|
|
}
|
|
|
|
funcName := "loadConfig"
|
|
|
|
err = activeConfig.ResolveNetwork(parser)
|
|
if err != nil {
|
|
return nil, nil, err
|
|
}
|
|
// Validate database type.
|
|
if !validDbType(activeConfig.DbType) {
|
|
str := "%s: The specified database type [%s] is invalid -- " +
|
|
"supported types %s"
|
|
err := errors.Errorf(str, funcName, activeConfig.DbType, strings.Join(knownDbTypes, ", "))
|
|
fmt.Fprintln(os.Stderr, err)
|
|
parser.WriteHelp(os.Stderr)
|
|
return nil, nil, err
|
|
}
|
|
|
|
// Append the network type to the data directory so it is "namespaced"
|
|
// per network. In addition to the block database, there are other
|
|
// pieces of data that are saved to disk such as address manager state.
|
|
// All data is specific to a network, so namespacing the data directory
|
|
// means each individual piece of serialized data does not have to
|
|
// worry about changing names per network and such.
|
|
activeConfig.DataDir = filepath.Join(activeConfig.DataDir, activeConfig.NetParams().Name)
|
|
|
|
// Validate the number of candidates.
|
|
if activeConfig.NumCandidates < minCandidates || activeConfig.NumCandidates > maxCandidates {
|
|
str := "%s: The specified number of candidates is out of " +
|
|
"range -- parsed [%d]"
|
|
err = errors.Errorf(str, funcName, activeConfig.NumCandidates)
|
|
fmt.Fprintln(os.Stderr, err)
|
|
parser.WriteHelp(os.Stderr)
|
|
return nil, nil, err
|
|
}
|
|
|
|
return activeConfig, remainingArgs, nil
|
|
}
|