github.com/theQRL/go-zond@v0.1.1/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 }