mirror of
https://github.com/minio/minio.git
synced 2024-12-26 23:25:54 -05:00
a82500f162
ANSI colors do not work on dumb terminals, in situations when minio is running as a service under systemd. This PR ensures we turn off color in those situations.
100 lines
2.2 KiB
Go
100 lines
2.2 KiB
Go
/*
|
|
* Minio Cloud Storage, (C) 2018 Minio, Inc.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
package logger
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
"regexp"
|
|
|
|
"github.com/fatih/color"
|
|
isatty "github.com/mattn/go-isatty"
|
|
)
|
|
|
|
// Global colors.
|
|
var (
|
|
// Check if we stderr, stdout are dumb terminals, we do not apply
|
|
// ansi coloring on dumb terminals.
|
|
isTerminal = func() bool {
|
|
return isatty.IsTerminal(os.Stdout.Fd()) && isatty.IsTerminal(os.Stderr.Fd())
|
|
}
|
|
|
|
colorBold = func() func(a ...interface{}) string {
|
|
if isTerminal() {
|
|
return color.New(color.Bold).SprintFunc()
|
|
}
|
|
return fmt.Sprint
|
|
}()
|
|
colorFgRed = func() func(format string, a ...interface{}) string {
|
|
if isTerminal() {
|
|
return color.New(color.FgRed).SprintfFunc()
|
|
}
|
|
return fmt.Sprintf
|
|
}()
|
|
colorBgRed = func() func(format string, a ...interface{}) string {
|
|
if isTerminal() {
|
|
return color.New(color.BgRed).SprintfFunc()
|
|
}
|
|
return fmt.Sprintf
|
|
}()
|
|
colorFgWhite = func() func(format string, a ...interface{}) string {
|
|
if isTerminal() {
|
|
return color.New(color.FgWhite).SprintfFunc()
|
|
}
|
|
return fmt.Sprintf
|
|
}()
|
|
)
|
|
|
|
var ansiRE = regexp.MustCompile("(\x1b[^m]*m)")
|
|
|
|
// Print ANSI Control escape
|
|
func ansiEscape(format string, args ...interface{}) {
|
|
var Esc = "\x1b"
|
|
fmt.Printf("%s%s", Esc, fmt.Sprintf(format, args...))
|
|
}
|
|
|
|
func ansiMoveRight(n int) {
|
|
if isTerminal() {
|
|
ansiEscape("[%dC", n)
|
|
}
|
|
}
|
|
|
|
func ansiSaveAttributes() {
|
|
if isTerminal() {
|
|
ansiEscape("7")
|
|
}
|
|
}
|
|
|
|
func ansiRestoreAttributes() {
|
|
if isTerminal() {
|
|
ansiEscape("8")
|
|
}
|
|
}
|
|
|
|
func uniqueEntries(paths []string) []string {
|
|
found := map[string]bool{}
|
|
unqiue := []string{}
|
|
|
|
for v := range paths {
|
|
if _, ok := found[paths[v]]; !ok {
|
|
found[paths[v]] = true
|
|
unqiue = append(unqiue, paths[v])
|
|
}
|
|
}
|
|
return unqiue
|
|
}
|