rclone/local/read_device_unix.go
2017-02-11 17:54:50 +00:00

30 lines
647 B
Go

// Device reading functions
// +build darwin dragonfly freebsd linux netbsd openbsd solaris
package local
import (
"os"
"syscall"
"github.com/ncw/rclone/fs"
)
var (
oneFileSystem = fs.BoolP("one-file-system", "x", false, "Don't cross filesystem boundaries.")
)
// readDevice turns a valid os.FileInfo into a device number,
// returning devUnset if it fails.
func readDevice(fi os.FileInfo) uint64 {
if !*oneFileSystem {
return devUnset
}
statT, ok := fi.Sys().(*syscall.Stat_t)
if !ok {
fs.Debugf(fi.Name(), "Type assertion fi.Sys().(*syscall.Stat_t) failed from: %#v", fi.Sys())
return devUnset
}
return uint64(statT.Dev)
}