github.com/minio/console@v1.4.1/pkg/logger/utils.go (about) 1 // This file is part of MinIO Console Server 2 // Copyright (c) 2022 MinIO, Inc. 3 // 4 // This program is free software: you can redistribute it and/or modify 5 // it under the terms of the GNU Affero 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 // This program 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 Affero General Public License for more details. 13 // 14 // You should have received a copy of the GNU Affero General Public License 15 // along with this program. If not, see <http://www.gnu.org/licenses/>. 16 17 package logger 18 19 import ( 20 "fmt" 21 "regexp" 22 "runtime" 23 24 "github.com/minio/console/pkg/logger/color" 25 ) 26 27 var ansiRE = regexp.MustCompile("(\x1b[^m]*m)") 28 29 // Print ANSI Control escape 30 func ansiEscape(format string, args ...interface{}) { 31 Esc := "\x1b" 32 fmt.Printf("%s%s", Esc, fmt.Sprintf(format, args...)) 33 } 34 35 func ansiMoveRight(n int) { 36 if runtime.GOOS == "windows" { 37 return 38 } 39 if color.IsTerminal() { 40 ansiEscape("[%dC", n) 41 } 42 } 43 44 func ansiSaveAttributes() { 45 if runtime.GOOS == "windows" { 46 return 47 } 48 if color.IsTerminal() { 49 ansiEscape("7") 50 } 51 } 52 53 func ansiRestoreAttributes() { 54 if runtime.GOOS == "windows" { 55 return 56 } 57 if color.IsTerminal() { 58 ansiEscape("8") 59 } 60 }