Golang dcrutil.AppDataDir函數代碼示例

func main() {
	// Only override the handlers for notifications you care about.
	// Also note most of these handlers will only be called if you register
	// for notifications.  See the documentation of the dcrrpcclient
	// NotificationHandlers type for more details about each handler.
	ntfnHandlers := dcrrpcclient.NotificationHandlers{
		OnBlockConnected: func(hash *chainhash.Hash, height int32, time time.Time, vb uint16) {
			log.Printf("Block connected: %v (%d) %v %v", hash, height, time, vb)
		},
		OnBlockDisconnected: func(hash *chainhash.Hash, height int32, time time.Time, vb uint16) {
			log.Printf("Block disconnected: %v (%d) %v %v", hash, height, time, vb)
		},
	}

	// Connect to local dcrd RPC server using websockets.
	dcrdHomeDir := dcrutil.AppDataDir("dcrd", false)
	certs, err := ioutil.ReadFile(filepath.Join(dcrdHomeDir, "rpc.cert"))
	if err != nil {
		log.Fatal(err)
	}
	connCfg := &dcrrpcclient.ConnConfig{
		Host:         "localhost:8334",
		Endpoint:     "ws",
		User:         "yourrpcuser",
		Pass:         "yourrpcpass",
		Certificates: certs,
	}
	client, err := dcrrpcclient.New(connCfg, &ntfnHandlers)
	if err != nil {
		log.Fatal(err)
	}

	// Register for block connect and disconnect notifications.
	if err := client.NotifyBlocks(); err != nil {
		log.Fatal(err)
	}
	log.Println("NotifyBlocks: Registration Complete")

	// Get the current block count.
	blockCount, err := client.GetBlockCount()
	if err != nil {
		log.Fatal(err)
	}
	log.Printf("Block count: %d", blockCount)

	// For this example gracefully shutdown the client after 10 seconds.
	// Ordinarily when to shutdown the client is highly application
	// specific.
	log.Println("Client shutdown in 10 seconds...")
	time.AfterFunc(time.Second*10, func() {
		log.Println("Client shutting down...")
		client.Shutdown()
		log.Println("Client shutdown complete.")
	})

	// Wait until the client either shuts down gracefully (or the user
	// terminates the process with Ctrl+C).
	client.WaitForShutdown()
}

// cleanAndExpandPath expands environement variables and leading ~ in the
// passed path, cleans the result, and returns it.
func cleanAndExpandPath(path string) string {
	// Expand initial ~ to OS specific home directory.
	if strings.HasPrefix(path, "~") {
		appHomeDir := dcrutil.AppDataDir("gencerts", false)
		homeDir := filepath.Dir(appHomeDir)
		path = strings.Replace(path, "~", homeDir, 1)
	}

	// NOTE: The os.ExpandEnv doesn't work with Windows-style %VARIABLE%,
	// but they variables can still be expanded via POSIX-style $VARIABLE.
	return filepath.Clean(os.ExpandEnv(path))
}

	defaultFreeTxRelayLimit  = 15.0
	defaultBlockMinSize      = 0
	defaultBlockMaxSize      = 375000
	blockMaxSizeMin          = 1000
	blockMaxSizeMax          = wire.MaxBlockPayload - 1000
	defaultBlockPrioritySize = 20000
	defaultGenerate          = false
	defaultAddrIndex         = false
	defaultNonAggressive     = false
	defaultNoMiningStateSync = false
	defaultAllowOldVotes     = false
	defaultSigCacheMaxSize   = 50000
)

var (
	dcrdHomeDir        = dcrutil.AppDataDir("dcrd", false)
	defaultConfigFile  = filepath.Join(dcrdHomeDir, defaultConfigFilename)
	defaultDataDir     = filepath.Join(dcrdHomeDir, defaultDataDirname)
	knownDbTypes       = database.SupportedDBs()
	defaultRPCKeyFile  = filepath.Join(dcrdHomeDir, "rpc.key")
	defaultRPCCertFile = filepath.Join(dcrdHomeDir, "rpc.cert")
	defaultLogDir      = filepath.Join(dcrdHomeDir, defaultLogDirname)
)

// runServiceCommand is only set to a real function on Windows.  It is used
// to parse and execute service commands specified via the -s flag.
var runServiceCommand func(string) error

// minUint32 is a helper function to return the minimum of two uint32s.
// This avoids a math import and the need to cast to floats.
func minUint32(a, b uint32) uint32 {

	// defaultPubPassphrase is the default public wallet passphrase which is
	// used when the user indicates they do not want additional protection
	// provided by having all public data in the wallet encrypted by a
	// passphrase only known to them.
	defaultPubPassphrase = "public"

	// maxEmptyAccounts is the number of accounts to scan even if they have no
	// transaction history. This is a deviation from BIP044 to make account
	// creation easier by allowing a limited number of empty accounts.
	maxEmptyAccounts = 100

	walletDbName = "wallet.db"
)

var (
	dcrdHomeDir        = dcrutil.AppDataDir("dcrd", false)
	dcrwalletHomeDir   = dcrutil.AppDataDir("dcrwallet", false)
	dcrdHomedirCAFile  = filepath.Join(dcrdHomeDir, "rpc.cert")
	defaultConfigFile  = filepath.Join(dcrwalletHomeDir, defaultConfigFilename)
	defaultDataDir     = dcrwalletHomeDir
	defaultRPCKeyFile  = filepath.Join(dcrwalletHomeDir, "rpc.key")
	defaultRPCCertFile = filepath.Join(dcrwalletHomeDir, "rpc.cert")
	defaultLogDir      = filepath.Join(dcrwalletHomeDir, defaultLogDirname)
)

type config struct {
	ShowVersion        bool     `short:"V" long:"version" description:"Display version information and exit"`
	Create             bool     `long:"create" description:"Create the wallet if it does not exist"`
	CreateTemp         bool     `long:"createtemp" description:"Create a temporary simulation wallet (pass=password) in the data directory indicated; must call with --datadir"`
	CreateWatchingOnly bool     `long:"createwatchingonly" description:"Create the wallet and instantiate it as watching only with an HD extended pubkey; must call with --create"`
	CAFile             string   `long:"cafile" description:"File containing root certificates to authenticate a TLS connections with dcrd"`

import (
	"bufio"
	"fmt"
	"os"
	"path/filepath"

	"github.com/btcsuite/go-flags"
	"github.com/decred/dcrutil"
	"github.com/decred/dcrwallet/walletdb"
	_ "github.com/decred/dcrwallet/walletdb/bdb"
)

const defaultNet = "mainnet"

var datadir = dcrutil.AppDataDir("dcrwallet", false)

// Flags.
var opts = struct {
	Force  bool   `short:"f" description:"Force removal without prompt"`
	DbPath string `long:"db" description:"Path to wallet database"`
}{
	Force:  false,
	DbPath: filepath.Join(datadir, defaultNet, "wallet.db"),
}

func init() {
	_, err := flags.Parse(&opts)
	if err != nil {
		os.Exit(1)
	}

package main

import (
	"fmt"
	"net"
	"os"
	"path/filepath"
	"strings"

	"github.com/decred/dcrutil"

	flags "github.com/btcsuite/go-flags"
)

var (
	dcrdHomeDir        = dcrutil.AppDataDir("dcrd", false)
	appHomeDir         = dcrutil.AppDataDir("checkdevpremine", false)
	defaultConfigFile  = filepath.Join(appHomeDir, "checkdevpremine.conf")
	defaultRPCServer   = "localhost"
	defaultRPCCertFile = filepath.Join(dcrdHomeDir, "rpc.cert")
)

// config defines the configuration options for dcrctl.
//
// See loadConfig for details on the configuration load process.
type config struct {
	ConfigFile    string `short:"C" long:"configfile" description:"Path to configuration file"`
	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"`

	"github.com/btcsuite/golangcrypto/ssh/terminal"
	"github.com/decred/dcrd/chaincfg/chainhash"
	"github.com/decred/dcrd/dcrjson"
	"github.com/decred/dcrd/txscript"
	"github.com/decred/dcrd/wire"
	"github.com/decred/dcrrpcclient"
	"github.com/decred/dcrutil"
	"github.com/decred/dcrwallet/internal/cfgutil"
	"github.com/decred/dcrwallet/netparams"
	"github.com/decred/dcrwallet/wallet/txauthor"
	"github.com/decred/dcrwallet/wallet/txrules"
	"github.com/jessevdk/go-flags"
)

var (
	walletDataDirectory = dcrutil.AppDataDir("dcrwallet", false)
	newlineBytes        = []byte{'\n'}
)

func fatalf(format string, args ...interface{}) {
	fmt.Fprintf(os.Stderr, format, args...)
	os.Stderr.Write(newlineBytes)
	os.Exit(1)
}

func errContext(err error, context string) error {
	return fmt.Errorf("%s: %v", context, err)
}

// Flags.
var opts = struct {

	defaultRollbackTest        = false
	defaultPruneTickets        = false
	defaultTicketMaxPrice      = 0.0
	defaultTicketBuyFreq       = 1
	defaultAutomaticRepair     = false
	defaultUnsafeMainNet       = false
	defaultPromptPass          = false
	defaultAddrIdxScanLen      = 750
	defaultStakePoolColdExtKey = ""
	defaultAllowHighFees       = false

	walletDbName = "wallet.db"
)

var (
	dcrdDefaultCAFile  = filepath.Join(dcrutil.AppDataDir("dcrd", false), "rpc.cert")
	defaultAppDataDir  = dcrutil.AppDataDir("dcrwallet", false)
	defaultConfigFile  = filepath.Join(defaultAppDataDir, defaultConfigFilename)
	defaultRPCKeyFile  = filepath.Join(defaultAppDataDir, "rpc.key")
	defaultRPCCertFile = filepath.Join(defaultAppDataDir, "rpc.cert")
	defaultLogDir      = filepath.Join(defaultAppDataDir, defaultLogDirname)
)

type config struct {
	// General application behavior
	ConfigFile         string `short:"C" long:"configfile" description:"Path to configuration file"`
	ShowVersion        bool   `short:"V" long:"version" description:"Display version information and exit"`
	Create             bool   `long:"create" description:"Create the wallet if it does not exist"`
	CreateTemp         bool   `long:"createtemp" description:"Create a temporary simulation wallet (pass=password) in the data directory indicated; must call with --datadir"`
	CreateWatchingOnly bool   `long:"createwatchingonly" description:"Create the wallet and instantiate it as watching only with an HD extended pubkey; must call with --create"`
	AppDataDir         string `short:"A" long:"appdata" description:"Application data directory for wallet config, databases and logs"`

	defaultDBPort           = "3306"
	defaultDBUser           = "stakepool"
	defaultListen           = ":8000"
	defaultPoolEmail        = "[email protected]"
	defaultPoolFees         = 7.5
	defaultPoolLink         = "https://forum.decred.org/threads/rfp-6-setup-and-operate-10-stake-pools.1361/"
	defaultPublicPath       = "public"
	defaultTemplatePath     = "views"
	defaultRecaptchaSecret  = "6LeIxAcTAAAAAGG-vFI1TnRWxMZNFuojJ4WifJWe"
	defaultRecaptchaSitekey = "6LeIxAcTAAAAAJcZVRqyHh71UMIEGNQ_MXjiZKhI"
	defaultSMTPHost         = ""
	defaultMinServers       = 2
)

var (
	dcrstakepoolHomeDir = dcrutil.AppDataDir("dcrstakepool", false)
	defaultConfigFile   = filepath.Join(dcrstakepoolHomeDir, defaultConfigFilename)
	defaultDataDir      = filepath.Join(dcrstakepoolHomeDir, defaultDataDirname)
	defaultLogDir       = filepath.Join(dcrstakepoolHomeDir, defaultLogDirname)
)

// runServiceCommand is only set to a real function on Windows.  It is used
// to parse and execute service commands specified via the -s flag.
var runServiceCommand func(string) error

// config defines the configuration options for dcrd.
//
// See loadConfig for details on the configuration load process.
type config struct {
	ShowVersion      bool     `short:"V" long:"version" description:"Display version information and exit"`
	ConfigFile       string   `short:"C" long:"configfile" description:"Path to configuration file"`