stat_other.go RawHistoryFolder

1// SPDX-License-Identifier: MIT
2
3//go:build !(linux || darwin || freebsd || openbsd || netbsd || dragonfly)
4
5package git
6
7import (
8	"errors"
9	"io"
10	"os"
11)
12
13// statNul is os.Stat or os.Lstat where there is no stat system call to make
14// directly.
15func statNul(nul []byte, lstat bool, st *fileStat) error {
16	path := string(nul[:len(nul)-1])
17	var fi os.FileInfo
18	var err error
19	if lstat {
20		fi, err = os.Lstat(path)
21	} else {
22		fi, err = os.Stat(path)
23	}
24	*st = fileStat{}
25	if err != nil {
26		if isNotExist(err) {
27			return nil
28		}
29		return err
30	}
31	*st = fileStat{exists: true, isDir: fi.IsDir(), size: fi.Size(), mtime: fi.ModTime().UnixNano(), ino: fileIno(fi)}
32	return nil
33}
34
35// rawFile is an open file.
36type rawFile struct{ f *os.File }
37
38func openNul(nul []byte) (rawFile, error) {
39	f, err := os.Open(string(nul[:len(nul)-1]))
40	return rawFile{f}, err
41}
42
43// read returns io.EOF at the end of the file.
44func (f rawFile) read(p []byte) (int, error) {
45	n, err := f.f.Read(p)
46	if n > 0 && errors.Is(err, io.EOF) {
47		err = nil
48	}
49	return n, err
50}
51
52func (f rawFile) close() { _ = f.f.Close() }
53
54func isNotExistErrno(err error) bool { return isNotExist(err) }
55
56func openError(_ []byte, err error) error { return err }