156         k = _toolstr(ui, tool, kn)

   156         k = _toolstr(ui, tool, kn)

   157         if not k:

   157         if not k:

   158             continue

   158             continue

   159         p = util.lookupreg(k, _toolstr(ui, tool, b"regname"))

   159         p = util.lookupreg(k, _toolstr(ui, tool, b"regname"))

   160         if p:

   160         if p:

   162             if p:

   162             if p:

   163                 return p

   163                 return p

   164     exe = _toolstr(ui, tool, b"executable", tool)

   164     exe = _toolstr(ui, tool, b"executable", tool)

   165     return procutil.findexe(util.expandpath(exe))

   165     return procutil.findexe(util.expandpath(exe))

   166 

   166