2015-04-28 07:00:34 +02:00
|
|
|
/*
|
2015-07-25 02:51:40 +02:00
|
|
|
* Minio Cloud Storage, (C) 2015 Minio, Inc.
|
2015-04-28 07:00:34 +02:00
|
|
|
*
|
|
|
|
* 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 main
|
|
|
|
|
|
|
|
import (
|
|
|
|
"fmt"
|
|
|
|
"os"
|
|
|
|
"sync"
|
|
|
|
|
|
|
|
"path/filepath"
|
|
|
|
)
|
|
|
|
|
|
|
|
type logLevel int
|
|
|
|
|
|
|
|
const (
|
|
|
|
levelUnknown logLevel = iota
|
2015-07-06 01:55:55 +02:00
|
|
|
levelPrint
|
2015-04-28 07:00:34 +02:00
|
|
|
levelDebug
|
|
|
|
levelInfo
|
|
|
|
levelError
|
|
|
|
levelFatal
|
|
|
|
)
|
|
|
|
|
|
|
|
var (
|
|
|
|
mutex = &sync.RWMutex{}
|
|
|
|
|
|
|
|
// Fatal prints a error message and exits
|
|
|
|
Fatal = func(a ...interface{}) { privatePrint(levelFatal, a...) }
|
|
|
|
// Fatalln prints a error message with a new line and exits
|
|
|
|
Fatalln = func(a ...interface{}) { privatePrintln(levelFatal, a...) }
|
|
|
|
// Fatalf prints a error message with formatting and exits
|
|
|
|
Fatalf = func(f string, a ...interface{}) { privatePrintf(levelFatal, f, a...) }
|
|
|
|
|
|
|
|
// Error prints a error message
|
|
|
|
Error = func(a ...interface{}) { privatePrint(levelError, a...) }
|
|
|
|
// Errorln prints a error message with a new line
|
|
|
|
Errorln = func(a ...interface{}) { privatePrintln(levelError, a...) }
|
|
|
|
// Errorf prints a error message with formatting
|
|
|
|
Errorf = func(f string, a ...interface{}) { privatePrintf(levelError, f, a...) }
|
|
|
|
|
|
|
|
// Info prints a informational message
|
|
|
|
Info = func(a ...interface{}) { privatePrint(levelInfo, a...) }
|
|
|
|
// Infoln prints a informational message with a new line
|
|
|
|
Infoln = func(a ...interface{}) { privatePrintln(levelInfo, a...) }
|
|
|
|
// Infof prints a informational message with formatting
|
|
|
|
Infof = func(f string, a ...interface{}) { privatePrintf(levelInfo, f, a...) }
|
|
|
|
|
|
|
|
// Debug prints a debug message
|
|
|
|
Debug = func(a ...interface{}) { privatePrint(levelDebug, a...) }
|
|
|
|
// Debugln prints a debug message with a new line
|
|
|
|
Debugln = func(a ...interface{}) { privatePrintln(levelDebug, a...) }
|
|
|
|
// Debugf prints a debug message with formatting
|
|
|
|
Debugf = func(f string, a ...interface{}) { privatePrintf(levelDebug, f, a...) }
|
2015-07-06 01:55:55 +02:00
|
|
|
|
|
|
|
// Print prints a debug message
|
|
|
|
Print = func(a ...interface{}) { privatePrint(levelPrint, a...) }
|
|
|
|
// Println prints a debug message with a new line
|
|
|
|
Println = func(a ...interface{}) { privatePrintln(levelPrint, a...) }
|
|
|
|
// Printf prints a debug message with formatting
|
|
|
|
Printf = func(f string, a ...interface{}) { privatePrintf(levelPrint, f, a...) }
|
2015-04-28 07:00:34 +02:00
|
|
|
)
|
|
|
|
|
|
|
|
var (
|
|
|
|
// print prints a message prefixed with message type and program name
|
|
|
|
privatePrint = func(l logLevel, a ...interface{}) {
|
|
|
|
switch l {
|
|
|
|
case levelDebug:
|
|
|
|
mutex.Lock()
|
|
|
|
fmt.Fprint(os.Stderr, ProgramName()+": <DEBUG> ")
|
|
|
|
fmt.Fprint(os.Stderr, a...)
|
|
|
|
mutex.Unlock()
|
|
|
|
case levelInfo:
|
|
|
|
mutex.Lock()
|
|
|
|
fmt.Print(ProgramName() + ": <INFO> ")
|
|
|
|
fmt.Print(a...)
|
|
|
|
mutex.Unlock()
|
|
|
|
case levelError:
|
|
|
|
mutex.Lock()
|
|
|
|
fmt.Fprint(os.Stderr, ProgramName()+": <ERROR> ")
|
|
|
|
fmt.Fprint(os.Stderr, a...)
|
|
|
|
mutex.Unlock()
|
|
|
|
case levelFatal:
|
|
|
|
mutex.Lock()
|
|
|
|
fmt.Fprint(os.Stderr, ProgramName()+": <FATAL> ")
|
|
|
|
fmt.Fprint(os.Stderr, a...)
|
|
|
|
mutex.Unlock()
|
|
|
|
os.Exit(1)
|
|
|
|
default:
|
|
|
|
fmt.Print(a...)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// println - same as print with a new line
|
|
|
|
privatePrintln = func(l logLevel, a ...interface{}) {
|
|
|
|
switch l {
|
|
|
|
case levelDebug:
|
|
|
|
mutex.Lock()
|
|
|
|
fmt.Fprint(os.Stderr, ProgramName()+": <DEBUG> ")
|
|
|
|
fmt.Fprintln(os.Stderr, a...)
|
|
|
|
mutex.Unlock()
|
|
|
|
case levelInfo:
|
|
|
|
mutex.Lock()
|
|
|
|
fmt.Print(ProgramName() + ": <INFO> ")
|
|
|
|
fmt.Println(a...)
|
|
|
|
mutex.Unlock()
|
|
|
|
case levelError:
|
|
|
|
mutex.Lock()
|
|
|
|
fmt.Fprint(os.Stderr, ProgramName()+": <ERROR> ")
|
|
|
|
fmt.Fprintln(os.Stderr, a...)
|
|
|
|
mutex.Unlock()
|
|
|
|
case levelFatal:
|
|
|
|
mutex.Lock()
|
|
|
|
fmt.Fprint(os.Stderr, ProgramName()+": <FATAL> ")
|
|
|
|
fmt.Fprintln(os.Stderr, a...)
|
|
|
|
mutex.Unlock()
|
|
|
|
os.Exit(1)
|
|
|
|
default:
|
2015-08-20 22:05:47 +02:00
|
|
|
fmt.Println(a...)
|
2015-04-28 07:00:34 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// printf - same as print, but takes a format specifier
|
|
|
|
privatePrintf = func(l logLevel, f string, a ...interface{}) {
|
|
|
|
switch l {
|
|
|
|
case levelDebug:
|
|
|
|
mutex.Lock()
|
|
|
|
fmt.Fprint(os.Stderr, ProgramName()+": <DEBUG> ")
|
|
|
|
fmt.Fprintf(os.Stderr, f, a...)
|
|
|
|
mutex.Unlock()
|
|
|
|
case levelInfo:
|
|
|
|
mutex.Lock()
|
|
|
|
fmt.Print(ProgramName() + ": <INFO> ")
|
|
|
|
fmt.Printf(f, a...)
|
|
|
|
mutex.Unlock()
|
|
|
|
case levelError:
|
|
|
|
mutex.Lock()
|
|
|
|
fmt.Fprint(os.Stderr, ProgramName()+": <ERROR> ")
|
|
|
|
fmt.Fprintf(os.Stderr, f, a...)
|
|
|
|
mutex.Unlock()
|
|
|
|
|
|
|
|
case levelFatal:
|
|
|
|
mutex.Lock()
|
|
|
|
fmt.Fprint(os.Stderr, ProgramName()+": <FATAL> ")
|
|
|
|
fmt.Fprintf(os.Stderr, f, a...)
|
|
|
|
mutex.Unlock()
|
|
|
|
os.Exit(1)
|
|
|
|
default:
|
|
|
|
fmt.Printf(f, a...)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
)
|
|
|
|
|
|
|
|
// ProgramName - return the name of the executable program
|
|
|
|
func ProgramName() string {
|
|
|
|
_, progName := filepath.Split(os.Args[0])
|
|
|
|
return progName
|
|
|
|
}
|