def _get_one_sig(cls, dest_base_rpath, index, src_rorp, dest_rorp):
"""Return a signature given source and destination rorps"""
if (Globals.preserve_hardlinks and src_rorp
and Hardlink.is_linked(src_rorp)):
dest_sig = rpath.RORPath(index)
dest_sig.flaglinked(Hardlink.get_link_index(src_rorp))
elif dest_rorp:
dest_sig = dest_rorp.getRORPath()
if dest_rorp.isreg():
dest_rp = longname.get_mirror_rp(dest_base_rpath, dest_rorp)
sig_fp = cls._get_one_sig_fp(dest_rp)
if sig_fp is None:
return None
dest_sig.setfile(sig_fp)
else:
dest_sig = rpath.RORPath(index)
return dest_sig
