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package log15
import (
"os"
"github.com/mattn/go-colorable"
isatty "github.com/mattn/go-isatty"
)
// Predefined handlers
var (
root *logger
StdoutHandler = StreamHandler(os.Stdout, LogfmtFormat())
StderrHandler = StreamHandler(os.Stderr, LogfmtFormat())
)
func init() {
if isatty.IsTerminal(os.Stdout.Fd()) {
StdoutHandler = StreamHandler(colorable.NewColorableStdout(), TerminalFormat())
}
if isatty.IsTerminal(os.Stderr.Fd()) {
StderrHandler = StreamHandler(colorable.NewColorableStderr(), TerminalFormat())
}
root = &logger{[]interface{}{}, new(swapHandler)}
root.SetHandler(StdoutHandler)
}
// New returns a new logger with the given context.
// New is a convenient alias for Root().New
func New(ctx ...interface{}) Logger {
return root.New(ctx...)
}
// Root returns the root logger
func Root() Logger {
return root
}
// The following functions bypass the exported logger methods (logger.Debug,
// etc.) to keep the call depth the same for all paths to logger.write so
// runtime.Caller(2) always refers to the call site in client code.
// Debug is a convenient alias for Root().Debug
func Debug(msg string, ctx ...interface{}) {
root.write(msg, LvlDebug, ctx)
}
// Info is a convenient alias for Root().Info
func Info(msg string, ctx ...interface{}) {
root.write(msg, LvlInfo, ctx)
}
// Warn is a convenient alias for Root().Warn
func Warn(msg string, ctx ...interface{}) {
root.write(msg, LvlWarn, ctx)
}
// Error is a convenient alias for Root().Error
func Error(msg string, ctx ...interface{}) {
root.write(msg, LvlError, ctx)
}
// Crit is a convenient alias for Root().Crit
func Crit(msg string, ctx ...interface{}) {
root.write(msg, LvlCrit, ctx)
}
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