aboutsummaryrefslogtreecommitdiffstats
path: root/modules/git/tree_entry_mode.go
blob: 1193bec4f18c5ba58f238b9aa1ab6fd17284d752 (plain)
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
// Copyright 2020 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT

package git

import (
	"fmt"
	"strconv"
)

// EntryMode the type of the object in the git tree
type EntryMode int

// There are only a few file modes in Git. They look like unix file modes, but they can only be
// one of these.
const (
	// EntryModeNoEntry is possible if the file was added or removed in a commit. In the case of
	// added the base commit will not have the file in its tree so a mode of 0o000000 is used.
	EntryModeNoEntry EntryMode = 0o000000

	EntryModeBlob    EntryMode = 0o100644
	EntryModeExec    EntryMode = 0o100755
	EntryModeSymlink EntryMode = 0o120000
	EntryModeCommit  EntryMode = 0o160000
	EntryModeTree    EntryMode = 0o040000
)

// String converts an EntryMode to a string
func (e EntryMode) String() string {
	return strconv.FormatInt(int64(e), 8)
}

func ParseEntryMode(mode string) (EntryMode, error) {
	switch mode {
	case "000000":
		return EntryModeNoEntry, nil
	case "100644":
		return EntryModeBlob, nil
	case "100755":
		return EntryModeExec, nil
	case "120000":
		return EntryModeSymlink, nil
	case "160000":
		return EntryModeCommit, nil
	case "040000", "040755": // git uses 040000 for tree object, but some users may get 040755 for unknown reasons
		return EntryModeTree, nil
	default:
		return 0, fmt.Errorf("unparsable entry mode: %s", mode)
	}
}