1. 1
2. 2
3. 3
4. 4
5. 5
6. 6
7. 7
8. 8
9. 9
10. 10
11. 11
12. 12
13. 13
14. 14
15. 15
16. 16
17. 17
18. 18
19. 19
20. 20
21. 21
22. 22
23. 23
24. 24
25. 25
26. 26
27. 27
28. 28
29. 29
30. 30
31. 31
32. 32
33. 33
34. 34
35. 35
36. 36
37. 37
38. 38
39. 39
40. 40
41. 41
42. 42
43. 43
44. 44
45. 45
46. 46
47. 47
48. 48
49. 49
50. 50
51. 51
52. 52
53. 53
54. 54
55. 55
56. 56
57. 57
58. 58
59. 59
60. 60
61. 61
62. 62
63. 63
64. 64
65. 65
66. 66
67. 67
68. 68
69. 69
70. 70
71. 71
72. 72
73. 73
74. 74
75. 75
76. 76
77. 77
78. 78
79. 79
80. 80
81. 81
82. 82
83. 83
84. 84
85. 85
86. 86

// Copyright 2020 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.

package stats

import (
	"code.gitea.io/gitea/models/db"
	repo_model "code.gitea.io/gitea/models/repo"
	"code.gitea.io/gitea/modules/graceful"
	"code.gitea.io/gitea/modules/log"
)

// Indexer defines an interface to index repository stats
type Indexer interface {
	Index(id int64) error
	Close()
}

// indexer represents a indexer instance
var indexer Indexer

// Init initialize the repo indexer
func Init() error {
	indexer = &DBIndexer{}

	if err := initStatsQueue(); err != nil {
		return err
	}

	go populateRepoIndexer()

	return nil
}

// populateRepoIndexer populate the repo indexer with pre-existing data. This
// should only be run when the indexer is created for the first time.
func populateRepoIndexer() {
	log.Info("Populating the repo stats indexer with existing repositories")

	isShutdown := graceful.GetManager().IsShutdown()

	exist, err := db.IsTableNotEmpty("repository")
	if err != nil {
		log.Fatal("System error: %v", err)
	} else if !exist {
		return
	}

	var maxRepoID int64
	if maxRepoID, err = db.GetMaxID("repository"); err != nil {
		log.Fatal("System error: %v", err)
	}

	// start with the maximum existing repo ID and work backwards, so that we
	// don't include repos that are created after gitea starts; such repos will
	// already be added to the indexer, and we don't need to add them again.
	for maxRepoID > 0 {
		select {
		case <-isShutdown:
			log.Info("Repository Stats Indexer population shutdown before completion")
			return
		default:
		}
		ids, err := repo_model.GetUnindexedRepos(repo_model.RepoIndexerTypeStats, maxRepoID, 0, 50)
		if err != nil {
			log.Error("populateRepoIndexer: %v", err)
			return
		} else if len(ids) == 0 {
			break
		}
		for _, id := range ids {
			select {
			case <-isShutdown:
				log.Info("Repository Stats Indexer population shutdown before completion")
				return
			default:
			}
			if err := statsQueue.Push(id); err != nil {
				log.Error("statsQueue.Push: %v", err)
			}
			maxRepoID = id - 1
		}
	}
	log.Info("Done (re)populating the repo stats indexer with existing repositories")
}