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Log to stderr by default, not stdout #80

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Mar 28, 2024
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4 changes: 2 additions & 2 deletions logger.go
Original file line number Diff line number Diff line change
Expand Up @@ -156,7 +156,7 @@
// NewDefaultLeveledLoggerForScope returns a configured LeveledLogger
func NewDefaultLeveledLoggerForScope(scope string, level LogLevel, writer io.Writer) *DefaultLeveledLogger {
if writer == nil {
writer = os.Stdout
writer = os.Stderr

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}
logger := &DefaultLeveledLogger{
writer: &loggerWriter{output: writer},
Expand All @@ -182,7 +182,7 @@
factory := DefaultLoggerFactory{}
factory.DefaultLogLevel = LogLevelError
factory.ScopeLevels = make(map[string]LogLevel)
factory.Writer = os.Stdout
factory.Writer = os.Stderr

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logLevels := map[string]LogLevel{
"DISABLE": LogLevelDisabled,
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6 changes: 3 additions & 3 deletions logging_test.go
Original file line number Diff line number Diff line change
Expand Up @@ -73,7 +73,7 @@ func testErrorLevel(t *testing.T, logger *logging.DefaultLeveledLogger) {

func TestDefaultLoggerFactory(t *testing.T) {
f := logging.DefaultLoggerFactory{
Writer: os.Stdout,
Writer: os.Stderr,
DefaultLogLevel: logging.LogLevelWarn,
ScopeLevels: map[string]logging.LogLevel{
"foo": logging.LogLevelDebug,
Expand All @@ -100,7 +100,7 @@ func TestDefaultLoggerFactory(t *testing.T) {

func TestDefaultLogger(t *testing.T) {
logger := logging.
NewDefaultLeveledLoggerForScope("test1", logging.LogLevelWarn, os.Stdout)
NewDefaultLeveledLoggerForScope("test1", logging.LogLevelWarn, os.Stderr)

testNoDebugLevel(t, logger)
testWarnLevel(t, logger)
Expand All @@ -109,7 +109,7 @@ func TestDefaultLogger(t *testing.T) {

func TestSetLevel(t *testing.T) {
logger := logging.
NewDefaultLeveledLoggerForScope("testSetLevel", logging.LogLevelWarn, os.Stdout)
NewDefaultLeveledLoggerForScope("testSetLevel", logging.LogLevelWarn, os.Stderr)

testNoDebugLevel(t, logger)
logger.SetLevel(logging.LogLevelDebug)
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