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-rw-r--r--log/root.go67
1 files changed, 67 insertions, 0 deletions
diff --git a/log/root.go b/log/root.go
new file mode 100644
index 000000000..39b4c9429
--- /dev/null
+++ b/log/root.go
@@ -0,0 +1,67 @@
+package log
+
+import (
+ "os"
+
+ "github.com/ethereum/go-ethereum/log/term"
+ "github.com/mattn/go-colorable"
+)
+
+var (
+ root *logger
+ StdoutHandler = StreamHandler(os.Stdout, LogfmtFormat())
+ StderrHandler = StreamHandler(os.Stderr, LogfmtFormat())
+)
+
+func init() {
+ if term.IsTty(os.Stdout.Fd()) {
+ StdoutHandler = StreamHandler(colorable.NewColorableStdout(), TerminalFormat())
+ }
+
+ if term.IsTty(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)
+}