mirror of https://github.com/status-im/op-geth.git
50 lines
1.5 KiB
Go
50 lines
1.5 KiB
Go
// 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"
|
|
"path/filepath"
|
|
"runtime"
|
|
)
|
|
|
|
// 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())
|
|
}
|
|
|
|
// FileExist checks if a file exists at filePath.
|
|
func FileExist(filePath string) bool {
|
|
_, err := os.Stat(filePath)
|
|
if err != nil && os.IsNotExist(err) {
|
|
return false
|
|
}
|
|
|
|
return true
|
|
}
|
|
|
|
// AbsolutePath returns datadir + filename, or filename if it is absolute.
|
|
func AbsolutePath(datadir string, filename string) string {
|
|
if filepath.IsAbs(filename) {
|
|
return filename
|
|
}
|
|
return filepath.Join(datadir, filename)
|
|
}
|