github.com/r8d8/go-ethereum@v5.5.2+incompatible/common/path.go (about)

     1  // Copyright 2014 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 common
    18  
    19  import (
    20  	"os"
    21  	"os/user"
    22  	"path/filepath"
    23  )
    24  
    25  func EnsurePathAbsoluteOrRelativeTo(Datadir string, filename string) string {
    26  	if filepath.IsAbs(filename) {
    27  		return filename
    28  	}
    29  	return filepath.Join(Datadir, filename)
    30  }
    31  
    32  func HomeDir() string {
    33  	if home := os.Getenv("HOME"); home != "" {
    34  		return home
    35  	}
    36  	if usr, err := user.Current(); err == nil {
    37  		return usr.HomeDir
    38  	}
    39  	return ""
    40  }