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better logging

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This commit is contained in:
Lou Knauer
2022-01-31 15:14:37 +01:00
parent f82caee28b
commit 84431585f9
6 changed files with 65 additions and 30 deletions
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44
log/log.go
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@@ -11,10 +11,20 @@ import (
"os"
)
var DebugWriter io.Writer = os.Stderr
var InfoWriter io.Writer = os.Stderr
var WarnWriter io.Writer = os.Stderr
var ErrorWriter io.Writer = os.Stderr
var (
DebugWriter io.Writer = os.Stderr
InfoWriter io.Writer = os.Stderr
WarnWriter io.Writer = os.Stderr
ErrorWriter io.Writer = os.Stderr
)
var (
DebugPrefix string = "<7>[DEBUG]"
InfoPrefix string = "<6>[INFO]"
WarnPrefix string = "<4>[WARNING]"
ErrPrefix string = "<3>[ERROR]"
FatalPrefix string = "<3>[FATAL]"
)
func init() {
if lvl, ok := os.LookupEnv("LOGLEVEL"); ok {
@@ -37,14 +47,14 @@ func init() {
func Debug(v ...interface{}) {
if DebugWriter != io.Discard {
v = append([]interface{}{"<7>[DEBUG]"}, v...)
v = append([]interface{}{DebugPrefix}, v...)
fmt.Fprintln(DebugWriter, v...)
}
}
func Info(v ...interface{}) {
if InfoWriter != io.Discard {
v = append([]interface{}{"<6>[INFO]"}, v...)
v = append([]interface{}{InfoPrefix}, v...)
fmt.Fprintln(InfoWriter, v...)
}
}
@@ -55,21 +65,21 @@ func Print(v ...interface{}) {
func Warn(v ...interface{}) {
if WarnWriter != io.Discard {
v = append([]interface{}{"<4>[WARNING]"}, v...)
v = append([]interface{}{WarnPrefix}, v...)
fmt.Fprintln(WarnWriter, v...)
}
}
func Error(v ...interface{}) {
if ErrorWriter != io.Discard {
v = append([]interface{}{"<3>[ERROR]"}, v...)
v = append([]interface{}{ErrPrefix}, v...)
fmt.Fprintln(ErrorWriter, v...)
}
}
func Fatal(v ...interface{}) {
if ErrorWriter != io.Discard {
v = append([]interface{}{"<0>[FATAL]"}, v...)
v = append([]interface{}{FatalPrefix}, v...)
fmt.Fprintln(ErrorWriter, v...)
}
os.Exit(1)
@@ -77,13 +87,13 @@ func Fatal(v ...interface{}) {
func Debugf(format string, v ...interface{}) {
if DebugWriter != io.Discard {
fmt.Fprintf(DebugWriter, "<7>[DEBUG] "+format+"\n", v...)
fmt.Fprintf(DebugWriter, DebugPrefix+" "+format+"\n", v...)
}
}
func Infof(format string, v ...interface{}) {
if InfoWriter != io.Discard {
fmt.Fprintf(InfoWriter, "<6>[INFO] "+format+"\n", v...)
fmt.Fprintf(InfoWriter, InfoPrefix+" "+format+"\n", v...)
}
}
@@ -91,21 +101,27 @@ func Printf(format string, v ...interface{}) {
Infof(format, v...)
}
func Finfof(w io.Writer, format string, v ...interface{}) {
if w != io.Discard {
fmt.Fprintf(InfoWriter, InfoPrefix+" "+format+"\n", v...)
}
}
func Warnf(format string, v ...interface{}) {
if WarnWriter != io.Discard {
fmt.Fprintf(WarnWriter, "<4>[WARNING] "+format+"\n", v...)
fmt.Fprintf(WarnWriter, WarnPrefix+" "+format+"\n", v...)
}
}
func Errorf(format string, v ...interface{}) {
if ErrorWriter != io.Discard {
fmt.Fprintf(ErrorWriter, "<3>[ERROR] "+format+"\n", v...)
fmt.Fprintf(ErrorWriter, ErrPrefix+" "+format+"\n", v...)
}
}
func Fatalf(format string, v ...interface{}) {
if ErrorWriter != io.Discard {
fmt.Fprintf(ErrorWriter, "<0>[FATAL] "+format+"\n", v...)
fmt.Fprintf(ErrorWriter, FatalPrefix+" "+format+"\n", v...)
}
os.Exit(1)
}