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
|
// Copyright 2018 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
//go:build !gogit
package git
import (
"bufio"
"bytes"
"fmt"
"io"
"code.gitea.io/gitea/modules/log"
)
// ParseTreeEntries parses the output of a `git ls-tree -l` command.
func ParseTreeEntries(data []byte) ([]*TreeEntry, error) {
return parseTreeEntries(data, nil)
}
// parseTreeEntries FIXME this function's design is not right, it should make the caller read all data into memory
func parseTreeEntries(data []byte, ptree *Tree) ([]*TreeEntry, error) {
entries := make([]*TreeEntry, 0, bytes.Count(data, []byte{'\n'})+1)
for pos := 0; pos < len(data); {
posEnd := bytes.IndexByte(data[pos:], '\n')
if posEnd == -1 {
posEnd = len(data)
} else {
posEnd += pos
}
line := data[pos:posEnd]
lsTreeLine, err := parseLsTreeLine(line)
if err != nil {
return nil, err
}
entry := &TreeEntry{
ptree: ptree,
ID: lsTreeLine.ID,
entryMode: lsTreeLine.EntryMode,
name: lsTreeLine.Name,
size: lsTreeLine.Size.Value(),
sized: lsTreeLine.Size.Has(),
}
pos = posEnd + 1
entries = append(entries, entry)
}
return entries, nil
}
func catBatchParseTreeEntries(objectFormat ObjectFormat, ptree *Tree, rd *bufio.Reader, sz int64) ([]*TreeEntry, error) {
fnameBuf := make([]byte, 4096)
modeBuf := make([]byte, 40)
shaBuf := make([]byte, objectFormat.FullLength())
entries := make([]*TreeEntry, 0, 10)
loop:
for sz > 0 {
mode, fname, sha, count, err := ParseCatFileTreeLine(objectFormat, rd, modeBuf, fnameBuf, shaBuf)
if err != nil {
if err == io.EOF {
break loop
}
return nil, err
}
sz -= int64(count)
entry := new(TreeEntry)
entry.ptree = ptree
switch string(mode) {
case "100644":
entry.entryMode = EntryModeBlob
case "100755":
entry.entryMode = EntryModeExec
case "120000":
entry.entryMode = EntryModeSymlink
case "160000":
entry.entryMode = EntryModeCommit
case "40000", "40755": // git uses 40000 for tree object, but some users may get 40755 for unknown reasons
entry.entryMode = EntryModeTree
default:
log.Debug("Unknown mode: %v", string(mode))
return nil, fmt.Errorf("unknown mode: %v", string(mode))
}
entry.ID = objectFormat.MustID(sha)
entry.name = string(fname)
entries = append(entries, entry)
}
if _, err := rd.Discard(1); err != nil {
return entries, err
}
return entries, nil
}
|
