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

// Copyright 2018 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 git

import "strings"

const (
	// RemotePrefix is the base directory of the remotes information of git.
	RemotePrefix = "refs/remotes/"
	// PullPrefix is the base directory of the pull information of git.
	PullPrefix = "refs/pull/"

	pullLen = len(PullPrefix)
)

// Reference represents a Git ref.
type Reference struct {
	Name   string
	repo   *Repository
	Object SHA1 // The id of this commit object
	Type   string
}

// Commit return the commit of the reference
func (ref *Reference) Commit() (*Commit, error) {
	return ref.repo.getCommit(ref.Object)
}

// ShortName returns the short name of the reference
func (ref *Reference) ShortName() string {
	if ref == nil {
		return ""
	}
	if strings.HasPrefix(ref.Name, BranchPrefix) {
		return strings.TrimPrefix(ref.Name, BranchPrefix)
	}
	if strings.HasPrefix(ref.Name, TagPrefix) {
		return strings.TrimPrefix(ref.Name, TagPrefix)
	}
	if strings.HasPrefix(ref.Name, RemotePrefix) {
		return strings.TrimPrefix(ref.Name, RemotePrefix)
	}
	if strings.HasPrefix(ref.Name, PullPrefix) && strings.IndexByte(ref.Name[pullLen:], '/') > -1 {
		return ref.Name[pullLen : strings.IndexByte(ref.Name[pullLen:], '/')+pullLen]
	}

	return ref.Name
}

// RefGroup returns the group type of the reference
func (ref *Reference) RefGroup() string {
	if ref == nil {
		return ""
	}
	if strings.HasPrefix(ref.Name, BranchPrefix) {
		return "heads"
	}
	if strings.HasPrefix(ref.Name, TagPrefix) {
		return "tags"
	}
	if strings.HasPrefix(ref.Name, RemotePrefix) {
		return "remotes"
	}
	if strings.HasPrefix(ref.Name, PullPrefix) && strings.IndexByte(ref.Name[pullLen:], '/') > -1 {
		return "pull"
	}
	return ""
}