1package store

2

3import (

4 "os"

5

6 "github.com/mjl-/mox/mlog"

7 "github.com/mjl-/mox/mox-"

8)

9

10// CreateMessageTemp creates a temporary file, e.g. for delivery. The is created in

11// subdirectory tmp of the data directory, so the file is on the same file system

12// as the accounts directory, so renaming files can succeed. The caller is

13// responsible for closing and possibly removing the file. The caller should ensure

14// the contents of the file are synced to disk before attempting to deliver the

15// message.

16func CreateMessageTemp(log mlog.Log, pattern string) (*os.File, error) {

17 dir := mox.DataDirPath("tmp")

18 os.MkdirAll(dir, 0770)

19 f, err := os.CreateTemp(dir, pattern)

20 if err != nil {

21 return nil, err

22 }

23 err = f.Chmod(0660)

24 if err != nil {

25 xerr := f.Close()

26 log.Check(xerr, "closing temp message file after chmod error")

27 return nil, err

28 }

29 return f, err

30}

31