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	1. Add a OpenTelemetry-like shim-layer to collect traces 2. Add a simple builtin trace collector and exporter, end users could download the diagnosis report to get the traces. This PR's design is quite lightweight, no hard-dependency, and it is easy to improve or remove. We can try it on gitea.com first to see whether it works well, and fine tune the details. --------- Co-authored-by: silverwind <me@silverwind.io>
		
			
				
	
	
		
			74 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			74 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
| // Copyright 2025 The Gitea Authors. All rights reserved.
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| // SPDX-License-Identifier: MIT
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| 
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| package tailmsg
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| 
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| import (
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| 	"sync"
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| 	"time"
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| )
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| 
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| type MsgRecord struct {
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| 	Time    time.Time
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| 	Content string
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| }
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| 
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| type MsgRecorder interface {
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| 	Record(content string)
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| 	GetRecords() []*MsgRecord
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| }
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| 
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| type memoryMsgRecorder struct {
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| 	mu    sync.RWMutex
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| 	msgs  []*MsgRecord
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| 	limit int
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| }
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| 
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| // TODO: use redis for a clustered environment
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| 
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| func (m *memoryMsgRecorder) Record(content string) {
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| 	m.mu.Lock()
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| 	defer m.mu.Unlock()
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| 	m.msgs = append(m.msgs, &MsgRecord{
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| 		Time:    time.Now(),
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| 		Content: content,
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| 	})
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| 	if len(m.msgs) > m.limit {
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| 		m.msgs = m.msgs[len(m.msgs)-m.limit:]
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| 	}
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| }
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| 
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| func (m *memoryMsgRecorder) GetRecords() []*MsgRecord {
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| 	m.mu.RLock()
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| 	defer m.mu.RUnlock()
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| 	ret := make([]*MsgRecord, len(m.msgs))
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| 	copy(ret, m.msgs)
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| 	return ret
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| }
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| 
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| func NewMsgRecorder(limit int) MsgRecorder {
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| 	return &memoryMsgRecorder{
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| 		limit: limit,
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| 	}
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| }
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| 
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| type Manager struct {
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| 	traceRecorder MsgRecorder
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| 	logRecorder   MsgRecorder
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| }
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| 
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| func (m *Manager) GetTraceRecorder() MsgRecorder {
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| 	return m.traceRecorder
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| }
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| 
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| func (m *Manager) GetLogRecorder() MsgRecorder {
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| 	return m.logRecorder
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| }
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| 
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| var GetManager = sync.OnceValue(func() *Manager {
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| 	return &Manager{
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| 		traceRecorder: NewMsgRecorder(100),
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| 		logRecorder:   NewMsgRecorder(1000),
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| 	}
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| })
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