Add a NoCrossDevice flag to GetOptions, telling it to ignore
subdirectories on devices different than the top reference directory
that we start from, i.e., ignore the contents of mounted filesystems.
Signed-off-by: Nalin Dahyabhai <nalin@redhat.com>
Add copier.Eval(), for expanding paths using symbolic links in a
chrooted scope, without failing if a path component doesn't exist.
Signed-off-by: Nalin Dahyabhai <nalin@redhat.com>
Fall back to non-chroot behavior on Unixy systems when we're not started
as UID 0. Break the unit tests that exercise chroot functionality into
a separate file so that we don't even try to run those cases on non-Unix
OSes.
Signed-off-by: Nalin Dahyabhai <nalin@redhat.com>
Nalin Dahyabhai