155         repo.dirstate.write(tr)

   155         repo.dirstate.write(tr)

   156         if tr and tr.writepending():

   156         if tr and tr.writepending():

   157             env[b'HG_PENDING'] = repo.root

   157             env[b'HG_PENDING'] = repo.root

   158     env[b'HG_HOOKTYPE'] = htype

   158     env[b'HG_HOOKTYPE'] = htype

   159     env[b'HG_HOOKNAME'] = name

   159     env[b'HG_HOOKNAME'] = name

   160 

   161 

   161     for k, v in pycompat.iteritems(args):

   162     for k, v in pycompat.iteritems(args):

   162         # transaction changes can accumulate MBs of data, so skip it

   163         # transaction changes can accumulate MBs of data, so skip it

   163         # for external hooks

   164         # for external hooks

   164         if k == b'changes':

   165         if k == b'changes':