github.com/avence12/go-ethereum@v1.5.10-0.20170320123548-1dfd65f6d047/node/defaults.go (about)

     1  // Copyright 2016 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package node
    18  
    19  import (
    20  	"os"
    21  	"os/user"
    22  	"path/filepath"
    23  	"runtime"
    24  )
    25  
    26  const (
    27  	DefaultIPCSocket = "geth.ipc"  // Default (relative) name of the IPC RPC socket
    28  	DefaultHTTPHost  = "localhost" // Default host interface for the HTTP RPC server
    29  	DefaultHTTPPort  = 8545        // Default TCP port for the HTTP RPC server
    30  	DefaultWSHost    = "localhost" // Default host interface for the websocket RPC server
    31  	DefaultWSPort    = 8546        // Default TCP port for the websocket RPC server
    32  )
    33  
    34  // DefaultDataDir is the default data directory to use for the databases and other
    35  // persistence requirements.
    36  func DefaultDataDir() string {
    37  	// Try to place the data folder in the user's home dir
    38  	home := homeDir()
    39  	if home != "" {
    40  		if runtime.GOOS == "darwin" {
    41  			return filepath.Join(home, "Library", "Ethereum")
    42  		} else if runtime.GOOS == "windows" {
    43  			return filepath.Join(home, "AppData", "Roaming", "Ethereum")
    44  		} else {
    45  			return filepath.Join(home, ".ethereum")
    46  		}
    47  	}
    48  	// As we cannot guess a stable location, return empty and handle later
    49  	return ""
    50  }
    51  
    52  func homeDir() string {
    53  	if home := os.Getenv("HOME"); home != "" {
    54  		return home
    55  	}
    56  	if usr, err := user.Current(); err == nil {
    57  		return usr.HomeDir
    58  	}
    59  	return ""
    60  }