Method WriteFile

vfs/vfs.go:832–840

WriteFile writes data to the named file, creating it if necessary. If the file does not exist, WriteFile creates it with permissions perm (before umask); otherwise WriteFile truncates it before writing, without changing permissions. Since WriteFile requires multiple system calls to complete, a failu

(name string, data []byte, perm os.FileMode)

// permissions. Since WriteFile requires multiple system calls to complete,
// a failure mid-operation can leave the file in a partially written state.
func (vfs *VFS) WriteFile(name string, data []byte, perm os.FileMode) (err error) {
	fh, err := vfs.OpenFile(name, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, perm)
	if err != nil {
		return err
	}
	defer fs.CheckClose(fh, &err)
	_, err = fh.Write(data)
	return err
}

// AddVirtual adds the object (file or dir) to the directory cache
//