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c053eb71b6
slog.SetDefault has undesirable side effects. It also sets the default logger destination, for example. So we should not call it by default in init.
117 lines
2.7 KiB
Go
117 lines
2.7 KiB
Go
package log
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import (
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"os"
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"sync/atomic"
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"golang.org/x/exp/slog"
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)
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var root atomic.Value
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func init() {
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root.Store(&logger{slog.New(DiscardHandler())})
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}
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// SetDefault sets the default global logger
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func SetDefault(l Logger) {
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root.Store(l)
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if lg, ok := l.(*logger); ok {
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slog.SetDefault(lg.inner)
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}
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}
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// Root returns the root logger
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func Root() Logger {
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return root.Load().(Logger)
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}
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// The following functions bypass the exported logger methods (logger.Debug,
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// etc.) to keep the call depth the same for all paths to logger.Write so
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// runtime.Caller(2) always refers to the call site in client code.
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// Trace is a convenient alias for Root().Trace
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//
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// Log a message at the trace level with context key/value pairs
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//
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// # Usage
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//
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// log.Trace("msg")
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// log.Trace("msg", "key1", val1)
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// log.Trace("msg", "key1", val1, "key2", val2)
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func Trace(msg string, ctx ...interface{}) {
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Root().Write(LevelTrace, msg, ctx...)
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}
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// Debug is a convenient alias for Root().Debug
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//
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// Log a message at the debug level with context key/value pairs
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//
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// # Usage Examples
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//
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// log.Debug("msg")
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// log.Debug("msg", "key1", val1)
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// log.Debug("msg", "key1", val1, "key2", val2)
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func Debug(msg string, ctx ...interface{}) {
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Root().Write(slog.LevelDebug, msg, ctx...)
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}
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// Info is a convenient alias for Root().Info
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//
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// Log a message at the info level with context key/value pairs
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//
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// # Usage Examples
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//
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// log.Info("msg")
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// log.Info("msg", "key1", val1)
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// log.Info("msg", "key1", val1, "key2", val2)
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func Info(msg string, ctx ...interface{}) {
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Root().Write(slog.LevelInfo, msg, ctx...)
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}
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// Warn is a convenient alias for Root().Warn
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//
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// Log a message at the warn level with context key/value pairs
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//
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// # Usage Examples
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//
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// log.Warn("msg")
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// log.Warn("msg", "key1", val1)
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// log.Warn("msg", "key1", val1, "key2", val2)
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func Warn(msg string, ctx ...interface{}) {
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Root().Write(slog.LevelWarn, msg, ctx...)
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}
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// Error is a convenient alias for Root().Error
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//
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// Log a message at the error level with context key/value pairs
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//
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// # Usage Examples
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//
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// log.Error("msg")
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// log.Error("msg", "key1", val1)
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// log.Error("msg", "key1", val1, "key2", val2)
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func Error(msg string, ctx ...interface{}) {
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Root().Write(slog.LevelError, msg, ctx...)
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}
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// Crit is a convenient alias for Root().Crit
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//
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// Log a message at the crit level with context key/value pairs, and then exit.
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//
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// # Usage Examples
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//
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// log.Crit("msg")
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// log.Crit("msg", "key1", val1)
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// log.Crit("msg", "key1", val1, "key2", val2)
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func Crit(msg string, ctx ...interface{}) {
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Root().Write(LevelCrit, msg, ctx...)
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os.Exit(1)
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}
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// New returns a new logger with the given context.
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// New is a convenient alias for Root().New
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func New(ctx ...interface{}) Logger {
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return Root().With(ctx...)
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}
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