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

// Copyright 2019 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 migrations

import (
	"crypto/sha1"
	"fmt"

	"xorm.io/xorm"
)

func hashContext(context string) string {
	return fmt.Sprintf("%x", sha1.Sum([]byte(context)))
}

func addCommitStatusContext(x *xorm.Engine) error {
	type CommitStatus struct {
		ID          int64  `xorm:"pk autoincr"`
		ContextHash string `xorm:"char(40) index"`
		Context     string `xorm:"TEXT"`
	}

	if err := x.Sync2(new(CommitStatus)); err != nil {
		return err
	}

	sess := x.NewSession()
	defer sess.Close()

	start := 0
	for {
		statuses := make([]*CommitStatus, 0, 100)
		err := sess.OrderBy("id").Limit(100, start).Find(&statuses)
		if err != nil {
			return err
		}
		if len(statuses) == 0 {
			break
		}

		if err = sess.Begin(); err != nil {
			return err
		}

		for _, status := range statuses {
			status.ContextHash = hashContext(status.Context)
			if _, err := sess.ID(status.ID).Cols("context_hash").Update(status); err != nil {
				return err
			}
		}

		if err := sess.Commit(); err != nil {
			return err
		}

		if len(statuses) < 100 {
			break
		}

		start += len(statuses)
	}

	return nil
}