tests/test-narrow-clone-non-narrow-server.t

largefiles: properly pass kwargs into url.open

The url.open function has acquired a lot of kwargs over the years.
When running `hg import http://example.com/hg/diff/1`, since at least
a708e1e4d7a8 in March, 2018, the calling sites for url.open try to
pass a `sendaccept` parameter that largefiles' override doesn't accept.

Currently that stack traces something like this:

  Traceback (most recent call last):
    File "/tmp/hgtests.sv744r5t/install/bin/hg", line 59, in <module>
      dispatch.run()
    File "/tmp/hgtests.sv744r5t/install/lib/python/mercurial/dispatch.py", line 143, in run
      status = dispatch(req)
    File "/tmp/hgtests.sv744r5t/install/lib/python/mercurial/dispatch.py", line 245, in dispatch
      status = _rundispatch(req)
    File "/tmp/hgtests.sv744r5t/install/lib/python/mercurial/dispatch.py", line 289, in _rundispatch
      ret = _runcatch(req) or 0
    File "/tmp/hgtests.sv744r5t/install/lib/python/mercurial/dispatch.py", line 465, in _runcatch
      return _callcatch(ui, _runcatchfunc)
    File "/tmp/hgtests.sv744r5t/install/lib/python/mercurial/dispatch.py", line 475, in _callcatch
      return scmutil.callcatch(ui, func)
    File "/tmp/hgtests.sv744r5t/install/lib/python/mercurial/scmutil.py", line 155, in callcatch
      return func()
    File "/tmp/hgtests.sv744r5t/install/lib/python/mercurial/dispatch.py", line 455, in _runcatchfunc
      return _dispatch(req)
    File "/tmp/hgtests.sv744r5t/install/lib/python/mercurial/dispatch.py", line 1259, in _dispatch
      lui, repo, cmd, fullargs, ui, options, d, cmdpats, cmdoptions
    File "/tmp/hgtests.sv744r5t/install/lib/python/mercurial/dispatch.py", line 913, in runcommand
      ret = _runcommand(ui, options, cmd, d)
    File "/tmp/hgtests.sv744r5t/install/lib/python/mercurial/dispatch.py", line 1270, in _runcommand
      return cmdfunc()
    File "/tmp/hgtests.sv744r5t/install/lib/python/mercurial/dispatch.py", line 1256, in <lambda>
      d = lambda: util.checksignature(func)(ui, *args, **strcmdopt)
    File "/tmp/hgtests.sv744r5t/install/lib/python/mercurial/util.py", line 1867, in check
      return func(*args, **kwargs)
    File "/tmp/hgtests.sv744r5t/install/lib/python/mercurial/commands.py", line 4184, in import_
      patchfile = hg.openpath(ui, patchurl, sendaccept=False)
    File "/tmp/hgtests.sv744r5t/install/lib/python/mercurial/hg.py", line 181, in openpath
      return url.open(ui, path, sendaccept=sendaccept)
  TypeError: openlargefile() got an unexpected keyword argument 'sendaccept'

So, just accept and pass along any kwargs of the overridden function.

Test attempting a narrow clone against a server that doesn't support narrowhg.

  $ . "$TESTDIR/narrow-library.sh"

  $ hg init master
  $ cd master

  $ for x in `$TESTDIR/seq.py 10`; do
  >   echo $x > "f$x"
  >   hg add "f$x"
  >   hg commit -m "Add $x"
  > done

  $ hg serve -a localhost -p $HGPORT1 --config extensions.narrow=! -d \
  >    --pid-file=hg.pid
  $ cat hg.pid >> "$DAEMON_PIDS"
  $ hg serve -a localhost -p $HGPORT2 -d --pid-file=hg.pid
  $ cat hg.pid >> "$DAEMON_PIDS"

Verify that narrow is advertised in the bundle2 capabilities:

  $ cat >> unquote.py <<EOF
  > from __future__ import print_function
  > import sys
  > if sys.version[0] == '3':
  >     import urllib.parse as up
  >     unquote = up.unquote_plus
  > else:
  >     import urllib
  >     unquote = urllib.unquote_plus
  > print(unquote(list(sys.stdin)[1]))
  > EOF
  $ echo hello | hg -R . serve --stdio | \
  >   "$PYTHON" unquote.py | tr ' ' '\n' | grep narrow
  exp-narrow-1

  $ cd ..

  $ hg clone --narrow --include f1 http://localhost:$HGPORT1/ narrowclone
  requesting all changes
  abort: server does not support narrow clones
  [255]

Make a narrow clone (via HGPORT2), then try to narrow and widen
into it (from HGPORT1) to prove that narrowing is fine and widening fails
gracefully:
  $ hg clone -r 0 --narrow --include f1 http://localhost:$HGPORT2/ narrowclone
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  new changesets * (glob)
  updating to branch default
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cd narrowclone
  $ hg tracked --addexclude f2 http://localhost:$HGPORT1/
  comparing with http://localhost:$HGPORT1/
  searching for changes
  looking for local changes to affected paths

  $ hg tracked --addinclude f1 http://localhost:$HGPORT1/
  nothing to widen or narrow

  $ hg tracked --addinclude f9 http://localhost:$HGPORT1/
  comparing with http://localhost:$HGPORT1/
  abort: server does not support narrow clones
  [255]