/usr/share/gocode/src/code.gitea.io/git/tree.go is in golang-code.gitea-git-dev 0.0~git20171222.4ec3654-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 | // Copyright 2015 The Gogs 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 (
"bytes"
"fmt"
"strings"
)
// Tree represents a flat directory listing.
type Tree struct {
ID SHA1
repo *Repository
// parent tree
ptree *Tree
entries Entries
entriesParsed bool
}
// NewTree create a new tree according the repository and commit id
func NewTree(repo *Repository, id SHA1) *Tree {
return &Tree{
ID: id,
repo: repo,
}
}
var escapeChar = []byte("\\")
// UnescapeChars reverses escaped characters.
func UnescapeChars(in []byte) []byte {
if bytes.Index(in, escapeChar) == -1 {
return in
}
endIdx := len(in) - 1
isEscape := false
out := make([]byte, 0, endIdx+1)
for i := range in {
if in[i] == '\\' && !isEscape {
isEscape = true
continue
}
isEscape = false
out = append(out, in[i])
}
return out
}
// parseTreeData parses tree information from the (uncompressed) raw
// data from the tree object.
func parseTreeData(tree *Tree, data []byte) ([]*TreeEntry, error) {
entries := make([]*TreeEntry, 0, 10)
l := len(data)
pos := 0
for pos < l {
entry := new(TreeEntry)
entry.ptree = tree
step := 6
switch string(data[pos : pos+step]) {
case "100644":
entry.mode = EntryModeBlob
entry.Type = ObjectBlob
case "100755":
entry.mode = EntryModeExec
entry.Type = ObjectBlob
case "120000":
entry.mode = EntryModeSymlink
entry.Type = ObjectBlob
case "160000":
entry.mode = EntryModeCommit
entry.Type = ObjectCommit
step = 8
case "040000":
entry.mode = EntryModeTree
entry.Type = ObjectTree
default:
return nil, fmt.Errorf("unknown type: %v", string(data[pos:pos+step]))
}
pos += step + 6 // Skip string type of entry type.
step = 40
id, err := NewIDFromString(string(data[pos : pos+step]))
if err != nil {
return nil, err
}
entry.ID = id
pos += step + 1 // Skip half of SHA1.
step = bytes.IndexByte(data[pos:], '\n')
// In case entry name is surrounded by double quotes(it happens only in git-shell).
if data[pos] == '"' {
entry.name = string(UnescapeChars(data[pos+1 : pos+step-1]))
} else {
entry.name = string(data[pos : pos+step])
}
pos += step + 1
entries = append(entries, entry)
}
return entries, nil
}
// SubTree get a sub tree by the sub dir path
func (t *Tree) SubTree(rpath string) (*Tree, error) {
if len(rpath) == 0 {
return t, nil
}
paths := strings.Split(rpath, "/")
var (
err error
g = t
p = t
te *TreeEntry
)
for _, name := range paths {
te, err = p.GetTreeEntryByPath(name)
if err != nil {
return nil, err
}
g, err = t.repo.getTree(te.ID)
if err != nil {
return nil, err
}
g.ptree = p
p = g
}
return g, nil
}
// ListEntries returns all entries of current tree.
func (t *Tree) ListEntries() (Entries, error) {
if t.entriesParsed {
return t.entries, nil
}
t.entriesParsed = true
stdout, err := NewCommand("ls-tree", t.ID.String()).RunInDirBytes(t.repo.Path)
if err != nil {
return nil, err
}
t.entries, err = parseTreeData(t, stdout)
return t.entries, err
}
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