restructured logger from budigt

splinter.go

@@ -0,0 +1,41 @@
+// Package splinter is a small, opinionated logger that fans out structured
+// records to one or more streams (console, file, custom). The default
+// package-level logger writes JSON to stderr at LevelInfo; replace it with
+// SetDefault to wire in your own configuration.
+package splinter
+
+import "sync"
+
+var (
+	defaultMu sync.RWMutex
+	def       = New(WithStream(NewConsoleStream(ConsoleJSON, LevelInfo)))
+)
+
+// Default returns the package-level Logger.
+func Default() *Logger {
+	defaultMu.RLock()
+	defer defaultMu.RUnlock()
+	return def
+}
+
+// SetDefault replaces the package-level Logger. The previous Logger is
+// returned so the caller can Close it if they own its streams.
+func SetDefault(l *Logger) *Logger {
+	defaultMu.Lock()
+	prev := def
+	def = l
+	defaultMu.Unlock()
+	return prev
+}
+
+// Debug logs at LevelDebug on the default Logger.
+func Debug(msg string, args ...any) { Default().Debug(msg, args...) }
+
+// Info logs at LevelInfo on the default Logger.
+func Info(msg string, args ...any) { Default().Info(msg, args...) }
+
+// Warn logs at LevelWarn on the default Logger.
+func Warn(msg string, args ...any) { Default().Warn(msg, args...) }
+
+// Error logs at LevelError on the default Logger.
+func Error(msg string, args ...any) { Default().Error(msg, args...) }