Add logger package with performance benchmarks

logger/options.go

@@ -0,0 +1,75 @@
+package logger
+
+type options struct {
+	level      Level
+	format     Format
+	output     Output
+	outputFile string
+	caller     bool
+	fieldKey   string
+	prefix     string
+	timeFormat string
+}
+
+type Option func(*options)
+
+func WithLevel(level Level) Option {
+	return func(o *options) {
+		o.level = level
+	}
+}
+
+func WithFormat(format Format) Option {
+	return func(o *options) {
+		o.format = format
+	}
+}
+
+func WithOutput(output Output) Option {
+	return func(o *options) {
+		o.output = output
+	}
+}
+
+func WithOutputFile(file string) Option {
+	return func(o *options) {
+		o.outputFile = file
+	}
+}
+
+func WithCaller(caller bool) Option {
+	return func(o *options) {
+		o.caller = caller
+	}
+}
+
+func WithFieldKey(key string) Option {
+	return func(o *options) {
+		o.fieldKey = key
+	}
+}
+
+func WithPrefix(prefix string) Option {
+	return func(o *options) {
+		o.prefix = prefix
+	}
+}
+
+func WithTimeFormat(format string) Option {
+	return func(o *options) {
+		o.timeFormat = format
+	}
+}
+
+func defaultOptions() options {
+	return options{
+		level:      INFO,
+		format:     TEXT,
+		output:     Stdout,
+		outputFile: "",
+		caller:     false,
+		fieldKey:   "trace_id",
+		prefix:     "",
+		timeFormat: "2006-01-02 15:04:05",
+	}
+}