[chore] update otel -> v1.20.0 (#2358)

vendor/github.com/go-logr/logr/logr.go

@@ -127,9 +127,9 @@ limitations under the License.
 // such a value can call its methods without having to check whether the
 // instance is ready for use.
 //
-// Calling methods with the null logger (Logger{}) as instance will crash
-// because it has no LogSink. Therefore this null logger should never be passed
-// around. For cases where passing a logger is optional, a pointer to Logger
+// The zero logger (= Logger{}) is identical to Discard() and discards all log
+// entries. Code that receives a Logger by value can simply call it, the methods
+// will never crash. For cases where passing a logger is optional, a pointer to Logger
 // should be used.
 //
 // # Key Naming Conventions
@@ -258,6 +258,12 @@ type Logger struct {
 // Enabled tests whether this Logger is enabled.  For example, commandline
 // flags might be used to set the logging verbosity and disable some info logs.
 func (l Logger) Enabled() bool {
+	// Some implementations of LogSink look at the caller in Enabled (e.g.
+	// different verbosity levels per package or file), but we only pass one
+	// CallDepth in (via Init).  This means that all calls from Logger to the
+	// LogSink's Enabled, Info, and Error methods must have the same number of
+	// frames.  In other words, Logger methods can't call other Logger methods
+	// which call these LogSink methods unless we do it the same in all paths.
 	return l.sink != nil && l.sink.Enabled(l.level)
 }
 
@@ -267,11 +273,11 @@ func (l Logger) Enabled() bool {
 // line.  The key/value pairs can then be used to add additional variable
 // information.  The key/value pairs must alternate string keys and arbitrary
 // values.
-func (l Logger) Info(msg string, keysAndValues ...interface{}) {
+func (l Logger) Info(msg string, keysAndValues ...any) {
 	if l.sink == nil {
 		return
 	}
-	if l.Enabled() {
+	if l.sink.Enabled(l.level) { // see comment in Enabled
 		if withHelper, ok := l.sink.(CallStackHelperLogSink); ok {
 			withHelper.GetCallStackHelper()()
 		}
@@ -289,7 +295,7 @@ func (l Logger) Info(msg string, keysAndValues ...interface{}) {
 // while the err argument should be used to attach the actual error that
 // triggered this log line, if present. The err parameter is optional
 // and nil may be passed instead of an error instance.
-func (l Logger) Error(err error, msg string, keysAndValues ...interface{}) {
+func (l Logger) Error(err error, msg string, keysAndValues ...any) {
 	if l.sink == nil {
 		return
 	}
@@ -314,9 +320,16 @@ func (l Logger) V(level int) Logger {
 	return l
 }
 
+// GetV returns the verbosity level of the logger. If the logger's LogSink is
+// nil as in the Discard logger, this will always return 0.
+func (l Logger) GetV() int {
+	// 0 if l.sink nil because of the if check in V above.
+	return l.level
+}
+
 // WithValues returns a new Logger instance with additional key/value pairs.
 // See Info for documentation on how key/value pairs work.
-func (l Logger) WithValues(keysAndValues ...interface{}) Logger {
+func (l Logger) WithValues(keysAndValues ...any) Logger {
 	if l.sink == nil {
 		return l
 	}
@@ -467,15 +480,15 @@ type LogSink interface {
 	// The level argument is provided for optional logging.  This method will
 	// only be called when Enabled(level) is true. See Logger.Info for more
 	// details.
-	Info(level int, msg string, keysAndValues ...interface{})
+	Info(level int, msg string, keysAndValues ...any)
 
 	// Error logs an error, with the given message and key/value pairs as
 	// context.  See Logger.Error for more details.
-	Error(err error, msg string, keysAndValues ...interface{})
+	Error(err error, msg string, keysAndValues ...any)
 
 	// WithValues returns a new LogSink with additional key/value pairs.  See
 	// Logger.WithValues for more details.
-	WithValues(keysAndValues ...interface{}) LogSink
+	WithValues(keysAndValues ...any) LogSink
 
 	// WithName returns a new LogSink with the specified name appended.  See
 	// Logger.WithName for more details.
@@ -546,5 +559,5 @@ type Marshaler interface {
 	//     with exported fields
 	//
 	// It may return any value of any type.
-	MarshalLog() interface{}
+	MarshalLog() any
 }