1 files changed, 156 insertions, 0 deletions
diff --git a/vendor/github.com/apex/log/logger.go b/vendor/github.com/apex/log/logger.go
new file mode 100644
index 00000000..c7d9b730
--- /dev/null
+++ b/vendor/github.com/apex/log/logger.go
@@ -0,0 +1,156 @@
+package log
+
+import (
+	stdlog "log"
+	"sort"
+	"time"
+)
+
+// assert interface compliance.
+var _ Interface = (*Logger)(nil)
+
+// Fielder is an interface for providing fields to custom types.
+type Fielder interface {
+	Fields() Fields
+}
+
+// Fields represents a map of entry level data used for structured logging.
+type Fields map[string]interface{}
+
+// Fields implements Fielder.
+func (f Fields) Fields() Fields {
+	return f
+}
+
+// Get field value by name.
+func (f Fields) Get(name string) interface{} {
+	return f[name]
+}
+
+// Names returns field names sorted.
+func (f Fields) Names() (v []string) {
+	for k := range f {
+		v = append(v, k)
+	}
+
+	sort.Strings(v)
+	return
+}
+
+// The HandlerFunc type is an adapter to allow the use of ordinary functions as
+// log handlers. If f is a function with the appropriate signature,
+// HandlerFunc(f) is a Handler object that calls f.
+type HandlerFunc func(*Entry) error
+
+// HandleLog calls f(e).
+func (f HandlerFunc) HandleLog(e *Entry) error {
+	return f(e)
+}
+
+// Handler is used to handle log events, outputting them to
+// stdio or sending them to remote services. See the "handlers"
+// directory for implementations.
+//
+// It is left up to Handlers to implement thread-safety.
+type Handler interface {
+	HandleLog(*Entry) error
+}
+
+// Logger represents a logger with configurable Level and Handler.
+type Logger struct {
+	Handler Handler
+	Level   Level
+}
+
+// WithFields returns a new entry with `fields` set.
+func (l *Logger) WithFields(fields Fielder) *Entry {
+	return NewEntry(l).WithFields(fields.Fields())
+}
+
+// WithField returns a new entry with the `key` and `value` set.
+//
+// Note that the `key` should not have spaces in it - use camel
+// case or underscores
+func (l *Logger) WithField(key string, value interface{}) *Entry {
+	return NewEntry(l).WithField(key, value)
+}
+
+// WithDuration returns a new entry with the "duration" field set
+// to the given duration in milliseconds.
+func (l *Logger) WithDuration(d time.Duration) *Entry {
+	return NewEntry(l).WithDuration(d)
+}
+
+// WithError returns a new entry with the "error" set to `err`.
+func (l *Logger) WithError(err error) *Entry {
+	return NewEntry(l).WithError(err)
+}
+
+// Debug level message.
+func (l *Logger) Debug(msg string) {
+	NewEntry(l).Debug(msg)
+}
+
+// Info level message.
+func (l *Logger) Info(msg string) {
+	NewEntry(l).Info(msg)
+}
+
+// Warn level message.
+func (l *Logger) Warn(msg string) {
+	NewEntry(l).Warn(msg)
+}
+
+// Error level message.
+func (l *Logger) Error(msg string) {
+	NewEntry(l).Error(msg)
+}
+
+// Fatal level message, followed by an exit.
+func (l *Logger) Fatal(msg string) {
+	NewEntry(l).Fatal(msg)
+}
+
+// Debugf level formatted message.
+func (l *Logger) Debugf(msg string, v ...interface{}) {
+	NewEntry(l).Debugf(msg, v...)
+}
+
+// Infof level formatted message.
+func (l *Logger) Infof(msg string, v ...interface{}) {
+	NewEntry(l).Infof(msg, v...)
+}
+
+// Warnf level formatted message.
+func (l *Logger) Warnf(msg string, v ...interface{}) {
+	NewEntry(l).Warnf(msg, v...)
+}
+
+// Errorf level formatted message.
+func (l *Logger) Errorf(msg string, v ...interface{}) {
+	NewEntry(l).Errorf(msg, v...)
+}
+
+// Fatalf level formatted message, followed by an exit.
+func (l *Logger) Fatalf(msg string, v ...interface{}) {
+	NewEntry(l).Fatalf(msg, v...)
+}
+
+// Trace returns a new entry with a Stop method to fire off
+// a corresponding completion log, useful with defer.
+func (l *Logger) Trace(msg string) *Entry {
+	return NewEntry(l).Trace(msg)
+}
+
+// log the message, invoking the handler. We clone the entry here
+// to bypass the overhead in Entry methods when the level is not
+// met.
+func (l *Logger) log(level Level, e *Entry, msg string) {
+	if level < l.Level {
+		return
+	}
+
+	if err := l.Handler.HandleLog(e.finalize(level, msg)); err != nil {
+		stdlog.Printf("error logging: %s", err)
+	}
+}