kaspad/cmd/addblock/config.go

98 lines
3.0 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"
flags "github.com/jessevdk/go-flags"
"github.com/kaspanet/kaspad/infrastructure/config"
"github.com/kaspanet/kaspad/util"
"github.com/pkg/errors"
"os"
"path/filepath"
)
const (
defaultDataFile = "bootstrap.dat"
defaultProgress = 10
)
var (
kaspadHomeDir = util.AppDataDir("kaspad", false)
defaultDataDir = filepath.Join(kaspadHomeDir, "data")
activeConfig *ConfigFlags
)
// ActiveConfig returns the active configuration struct
func ActiveConfig() *ConfigFlags {
return activeConfig
}
// ConfigFlags defines the configuration options for addblock.
//
// See loadConfig for details on the configuration load process.
type ConfigFlags struct {
DataDir string `short:"b" long:"datadir" description:"Location of the kaspad data directory"`
InFile string `short:"i" long:"infile" description:"File containing the block(s)"`
Progress int `short:"p" long:"progress" description:"Show a progress message each time this number of seconds have passed -- Use 0 to disable progress announcements"`
AcceptanceIndex bool `long:"acceptanceindex" description:"Maintain a full hash-based acceptance index which makes the getChainFromBlock RPC available"`
config.NetworkFlags
}
// filesExists reports whether the named file or directory exists.
func fileExists(name string) bool {
if _, err := os.Stat(name); err != nil {
if os.IsNotExist(err) {
return false
}
}
return true
}
// loadConfig initializes and parses the config using command line options.
func loadConfig() (*ConfigFlags, []string, error) {
// Default config.
activeConfig = &ConfigFlags{
DataDir: defaultDataDir,
InFile: defaultDataFile,
Progress: defaultProgress,
}
// Parse command line options.
parser := flags.NewParser(&activeConfig, flags.Default)
remainingArgs, err := parser.Parse()
if err != nil {
var flagsErr *flags.Error
if ok := errors.As(err, &flagsErr); !ok || flagsErr.Type != flags.ErrHelp {
parser.WriteHelp(os.Stderr)
}
return nil, nil, err
}
err = activeConfig.ResolveNetwork(parser)
if err != nil {
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.
cfg.DataDir = filepath.Join(cfg.DataDir, ActiveConfig().NetParams().Name)
// Ensure the specified block file exists.
if !fileExists(cfg.InFile) {
str := "%s: The specified block file [%s] does not exist"
err := errors.Errorf(str, "loadConfig", cfg.InFile)
fmt.Fprintln(os.Stderr, err)
parser.WriteHelp(os.Stderr)
return nil, nil, err
}
return cfg, remainingArgs, nil
}