github.com/ethereum/go-ethereum@v1.14.3/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  	"path/filepath"
    22  )
    23  
    24  // FileExist checks if a file exists at filePath.
    25  func FileExist(filePath string) bool {
    26  	_, err := os.Stat(filePath)
    27  	if err != nil && os.IsNotExist(err) {
    28  		return false
    29  	}
    30  
    31  	return true
    32  }
    33  
    34  // AbsolutePath returns datadir + filename, or filename if it is absolute.
    35  func AbsolutePath(datadir string, filename string) string {
    36  	if filepath.IsAbs(filename) {
    37  		return filename
    38  	}
    39  	return filepath.Join(datadir, filename)
    40  }