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// Copyright 2014 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package common
import (
"fmt"
"os"
"os/user"
"path/filepath"
"runtime"
"strings"
"github.com/kardianos/osext"
)
// MakeName creates a node name that follows the ethereum convention
// for such names. It adds the operation system name and Go runtime version
// the name.
func MakeName(name, version string) string {
return fmt.Sprintf("%s/v%s/%s/%s", name, version, runtime.GOOS, runtime.Version())
}
func ExpandHomePath(p string) (path string) {
path = p
sep := fmt.Sprintf("%s", os.PathSeparator)
// Check in case of paths like "/something/~/something/"
if len(p) > 1 && p[:1+len(sep)] == "~"+sep {
usr, _ := user.Current()
dir := usr.HomeDir
path = strings.Replace(p, "~", dir, 1)
}
return
}
func FileExist(filePath string) bool {
_, err := os.Stat(filePath)
if err != nil && os.IsNotExist(err) {
return false
}
return true
}
func AbsolutePath(Datadir string, filename string) string {
if filepath.IsAbs(filename) {
return filename
}
return filepath.Join(Datadir, filename)
}
func DefaultAssetPath() string {
var assetPath string
pwd, _ := os.Getwd()
srcdir := filepath.Join(os.Getenv("GOPATH"), "src", "github.com", "ethereum", "go-ethereum", "cmd", "mist")
// If the current working directory is the go-ethereum dir
// assume a debug build and use the source directory as
// asset directory.
if pwd == srcdir {
assetPath = filepath.Join(pwd, "assets")
} else {
switch runtime.GOOS {
case "darwin":
// Get Binary Directory
exedir, _ := osext.ExecutableFolder()
assetPath = filepath.Join(exedir, "..", "Resources")
case "linux":
assetPath = filepath.Join("usr", "share", "mist")
case "windows":
assetPath = filepath.Join(".", "assets")
default:
assetPath = "."
}
}
// Check if the assetPath exists. If not, try the source directory
// This happens when binary is run from outside cmd/mist directory
if _, err := os.Stat(assetPath); os.IsNotExist(err) {
assetPath = filepath.Join(srcdir, "assets")
}
return assetPath
}
func DefaultDataDir() string {
// Try to place the data folder in the user's home dir
var home string
if usr, err := user.Current(); err == nil {
home = usr.HomeDir
} else {
home = os.Getenv("HOME")
}
if home != "" {
if runtime.GOOS == "darwin" {
return filepath.Join(home, "Library", "Ethereum")
} else if runtime.GOOS == "windows" {
return filepath.Join(home, "AppData", "Roaming", "Ethereum")
} else {
return filepath.Join(home, ".ethereum")
}
}
// As we cannot guess a stable location, return empty and handle later
return ""
}
func DefaultIpcPath() string {
if runtime.GOOS == "windows" {
return `\\.\pipe\geth.ipc`
}
return filepath.Join(DefaultDataDir(), "geth.ipc")
}
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