1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
// Copyright 2016 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 gitgraph
import (
"bufio"
"bytes"
"context"
"fmt"
"os"
"strings"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/setting"
)
// GraphItem represent one commit, or one relation in timeline
type GraphItem struct {
GraphAcii string
Relation string
Branch string
Rev string
Date string
Author string
AuthorEmail string
ShortRev string
Subject string
OnlyRelation bool
}
// GraphItems is a list of commits from all branches
type GraphItems []GraphItem
// GetCommitGraph return a list of commit (GraphItems) from all branches
func GetCommitGraph(r *git.Repository, page int) (GraphItems, error) {
format := "DATA:|%d|%H|%ad|%an|%ae|%h|%s"
if page == 0 {
page = 1
}
graphCmd := git.NewCommand("log")
graphCmd.AddArguments("--graph",
"--date-order",
"--all",
"-C",
"-M",
fmt.Sprintf("-n %d", setting.UI.GraphMaxCommitNum*page),
"--date=iso",
fmt.Sprintf("--pretty=format:%s", format),
)
commitGraph := make([]GraphItem, 0, 100)
stderr := new(strings.Builder)
stdoutReader, stdoutWriter, err := os.Pipe()
if err != nil {
return nil, err
}
commitsToSkip := setting.UI.GraphMaxCommitNum * (page - 1)
scanner := bufio.NewScanner(stdoutReader)
if err := graphCmd.RunInDirTimeoutEnvFullPipelineFunc(nil, -1, r.Path, stdoutWriter, stderr, nil, func(ctx context.Context, cancel context.CancelFunc) error {
_ = stdoutWriter.Close()
defer stdoutReader.Close()
for commitsToSkip > 0 && scanner.Scan() {
line := scanner.Bytes()
dataIdx := bytes.Index(line, []byte("DATA:"))
starIdx := bytes.IndexByte(line, '*')
if starIdx >= 0 && starIdx < dataIdx {
commitsToSkip--
}
}
// Skip initial non-commit lines
for scanner.Scan() {
if bytes.IndexByte(scanner.Bytes(), '*') >= 0 {
line := scanner.Text()
graphItem, err := graphItemFromString(line, r)
if err != nil {
cancel()
return err
}
commitGraph = append(commitGraph, graphItem)
break
}
}
for scanner.Scan() {
line := scanner.Text()
graphItem, err := graphItemFromString(line, r)
if err != nil {
cancel()
return err
}
commitGraph = append(commitGraph, graphItem)
}
return scanner.Err()
}); err != nil {
return commitGraph, err
}
return commitGraph, nil
}
func graphItemFromString(s string, r *git.Repository) (GraphItem, error) {
var ascii string
var data = "|||||||"
lines := strings.SplitN(s, "DATA:", 2)
switch len(lines) {
case 1:
ascii = lines[0]
case 2:
ascii = lines[0]
data = lines[1]
default:
return GraphItem{}, fmt.Errorf("Failed parsing grap line:%s. Expect 1 or two fields", s)
}
rows := strings.SplitN(data, "|", 8)
if len(rows) < 8 {
return GraphItem{}, fmt.Errorf("Failed parsing grap line:%s - Should containt 8 datafields", s)
}
/* // see format in getCommitGraph()
0 Relation string
1 Branch string
2 Rev string
3 Date string
4 Author string
5 AuthorEmail string
6 ShortRev string
7 Subject string
*/
gi := GraphItem{ascii,
rows[0],
rows[1],
rows[2],
rows[3],
rows[4],
rows[5],
rows[6],
rows[7],
len(rows[2]) == 0, // no commits referred to, only relation in current line.
}
return gi, nil
}
|
