From dc9bec2c223a58802aedce1ec2edfcef45f3ef6c Mon Sep 17 00:00:00 2001
From: linwenxiang <991154416@qq.com>
Date: Sat, 29 Aug 2020 15:19:01 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0debug?=
MIME-Version: 1.0
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---
 debug/log/log.go     | 56 +++++++++++++++++++++++++++++++++++
 debug/log/options.go | 70 ++++++++++++++++++++++++++++++++++++++++++++
 logger/default.go    |  2 +-
 3 files changed, 127 insertions(+), 1 deletion(-)
 create mode 100644 debug/log/log.go
 create mode 100644 debug/log/options.go

diff --git a/debug/log/log.go b/debug/log/log.go
new file mode 100644
index 00000000..dabdb899
--- /dev/null
+++ b/debug/log/log.go
@@ -0,0 +1,56 @@
+// Package log provides debug logging
+package log
+
+import (
+	"encoding/json"
+	"fmt"
+	"time"
+)
+
+var (
+	// Default buffer size if any
+	DefaultSize = 256
+	// Default formatter
+	DefaultFormat = TextFormat
+)
+
+// Log is debug log interface for reading and writing logs
+type Log interface {
+	// Read reads log entries from the logger
+	Read(...ReadOption) ([]Record, error)
+	// Write writes records to log
+	Write(Record) error
+	// Stream log records
+	Stream() (Stream, error)
+}
+
+// Record is log record entry
+type Record struct {
+	// Timestamp of logged event
+	Timestamp time.Time `json:"timestamp"`
+	// Metadata to enrich log record
+	Metadata map[string]string `json:"metadata"`
+	// Value contains log entry
+	Message interface{} `json:"message"`
+}
+
+// Stream returns a log stream
+type Stream interface {
+	Chan() <-chan Record
+	Stop() error
+}
+
+// Format is a function which formats the output
+type FormatFunc func(Record) string
+
+// TextFormat returns text format
+func TextFormat(r Record) string {
+	t := r.Timestamp.Format("2006-01-02 15:04:05")
+	return fmt.Sprintf("%s %v", t, r.Message)
+}
+
+// JSONFormat is a json Format func
+func JSONFormat(r Record) string {
+	b, _ := json.Marshal(r)
+	return string(b)
+}
diff --git a/debug/log/options.go b/debug/log/options.go
new file mode 100644
index 00000000..63281857
--- /dev/null
+++ b/debug/log/options.go
@@ -0,0 +1,70 @@
+package log
+
+import "time"
+
+// Option used by the logger
+type Option func(*Options)
+
+// Options are logger options
+type Options struct {
+	// Name of the log
+	Name string
+	// Size is the size of ring buffer
+	Size int
+	// Format specifies the output format
+	Format FormatFunc
+}
+
+// Name of the log
+func Name(n string) Option {
+	return func(o *Options) {
+		o.Name = n
+	}
+}
+
+// Size sets the size of the ring buffer
+func Size(s int) Option {
+	return func(o *Options) {
+		o.Size = s
+	}
+}
+
+func Format(f FormatFunc) Option {
+	return func(o *Options) {
+		o.Format = f
+	}
+}
+
+// DefaultOptions returns default options
+func DefaultOptions() Options {
+	return Options{
+		Size: DefaultSize,
+	}
+}
+
+// ReadOptions for querying the logs
+type ReadOptions struct {
+	// Since what time in past to return the logs
+	Since time.Time
+	// Count specifies number of logs to return
+	Count int
+	// Stream requests continuous log stream
+	Stream bool
+}
+
+// ReadOption used for reading the logs
+type ReadOption func(*ReadOptions)
+
+// Since sets the time since which to return the log records
+func Since(s time.Time) ReadOption {
+	return func(o *ReadOptions) {
+		o.Since = s
+	}
+}
+
+// Count sets the number of log records to return
+func Count(c int) ReadOption {
+	return func(o *ReadOptions) {
+		o.Count = c
+	}
+}
diff --git a/logger/default.go b/logger/default.go
index 191e7f71..93e3c5e1 100644
--- a/logger/default.go
+++ b/logger/default.go
@@ -10,7 +10,7 @@ import (
 	"sync"
 	"time"
 
-	dlog "go-admin/tools/debug/log"
+	dlog "go-admin/debug/log"
 )
 
 func init() {