2593     b'perf::unbundle',

  2594     formatteropts,

  2595     b'BUNDLE_FILE',

  2596 )

  2597 def perf_unbundle(ui, repo, fname, **opts):

  2598     """benchmark application of a bundle in a repository.

  2599 

  2600     This does not include the final transaction processing"""

  2601     from mercurial import exchange

  2602     from mercurial import bundle2

  2603 

  2604     with repo.lock():

  2605         bundle = [None, None]

  2606         try:

  2607             with open(fname, mode="rb") as f:

  2608 

  2609                 def setup():

  2610                     gen, tr = bundle

  2611                     if tr is not None:

  2612                         tr.abort()

  2613                     bundle[:] = [None, None]

  2614                     f.seek(0)

  2615                     bundle[0] = exchange.readbundle(ui, f, fname)

  2616                     bundle[1] = repo.transaction(b'perf::unbundle')

  2617 

  2618                 def apply():

  2619                     gen, tr = bundle

  2620                     bundle2.applybundle(

  2621                         repo,

  2622                         gen,

  2623                         tr,

  2624                         source=b'perf::unbundle',

  2625                         url=fname,

  2626                     )

  2627 

  2628                 timer, fm = gettimer(ui, opts)

  2629                 timer(apply, setup=setup)

  2630                 fm.end()

  2631         finally:

  2632             gen, tr = bundle

  2633             if tr is not None:

  2634                 tr.abort()

  2635 

  2636 

  2637 @command(