view tests/test-extension-timing.t @ 44667:b561f3a68e41 stable

discovery: avoid wrongly saying there are nothing to pull

We can get in a situation where a revision passed through `hg pull --rev REV`
are available on the server, but not a descendant of the advertised server
heads.

For example the server could lying be during heads advertisement, to hide some
pull request. Or obsolete/hidden content could be explicitly pulled.

So in this case the lookup associated to `REV` returned successfully, but the
normal discovery will find all advertised heads already known locally. This flip
a special boolean `anyinc` that will prevent any fetch attempt, preventing `REV`
to be pulled over.

We add three line of code to detect this case and make sure a pull actually
happens.

My main target is to make some third party extensions happy (I expect the
associated test to move upstream with the extension). However this fix already
make some of the `infinitepush` test happier.

Test basic extension support

  $ cat > foobar.py <<EOF
  > import os
  > from mercurial import commands, registrar
  > cmdtable = {}
  > command = registrar.command(cmdtable)
  > configtable = {}
  > configitem = registrar.configitem(configtable)
  > configitem(b'tests', b'foo', default=b"Foo")
  > def uisetup(ui):
  >     ui.debug(b"uisetup called [debug]\\n")
  >     ui.write(b"uisetup called\\n")
  >     ui.status(b"uisetup called [status]\\n")
  >     ui.flush()
  > def reposetup(ui, repo):
  >     ui.write(b"reposetup called for %s\\n" % os.path.basename(repo.root))
  >     ui.write(b"ui %s= repo.ui\\n" % (ui == repo.ui and b"=" or b"!"))
  >     ui.flush()
  > @command(b'foo', [], b'hg foo')
  > def foo(ui, *args, **kwargs):
  >     foo = ui.config(b'tests', b'foo')
  >     ui.write(foo)
  >     ui.write(b"\\n")
  > @command(b'bar', [], b'hg bar', norepo=True)
  > def bar(ui, *args, **kwargs):
  >     ui.write(b"Bar\\n")
  > EOF
  $ abspath=`pwd`/foobar.py

  $ mkdir barfoo
  $ cp foobar.py barfoo/__init__.py
  $ barfoopath=`pwd`/barfoo

  $ hg init a
  $ cd a
  $ echo foo > file
  $ hg add file
  $ hg commit -m 'add file'

  $ echo '[extensions]' >> $HGRCPATH
  $ echo "foobar = $abspath" >> $HGRCPATH

  $ filterlog () {
  >   sed -e 's!^[0-9/]* [0-9:]* ([0-9]*)>!YYYY/MM/DD HH:MM:SS (PID)>!'
  > }

Test extension setup timings

  $ hg foo --traceback --config devel.debug.extensions=yes --debug 2>&1 | filterlog
  YYYY/MM/DD HH:MM:SS (PID)> loading extensions
  YYYY/MM/DD HH:MM:SS (PID)> - processing 1 entries
  YYYY/MM/DD HH:MM:SS (PID)>   - loading extension: foobar
  YYYY/MM/DD HH:MM:SS (PID)>   > foobar extension loaded in * (glob)
  YYYY/MM/DD HH:MM:SS (PID)>     - validating extension tables: foobar
  YYYY/MM/DD HH:MM:SS (PID)>     - invoking registered callbacks: foobar
  YYYY/MM/DD HH:MM:SS (PID)>     > callbacks completed in * (glob)
  YYYY/MM/DD HH:MM:SS (PID)> > loaded 1 extensions, total time * (glob)
  YYYY/MM/DD HH:MM:SS (PID)> - loading configtable attributes
  YYYY/MM/DD HH:MM:SS (PID)> - executing uisetup hooks
  YYYY/MM/DD HH:MM:SS (PID)>   - running uisetup for foobar
  uisetup called [debug]
  uisetup called
  uisetup called [status]
  YYYY/MM/DD HH:MM:SS (PID)>   > uisetup for foobar took * (glob)
  YYYY/MM/DD HH:MM:SS (PID)> > all uisetup took * (glob)
  YYYY/MM/DD HH:MM:SS (PID)> - executing extsetup hooks
  YYYY/MM/DD HH:MM:SS (PID)>   - running extsetup for foobar
  YYYY/MM/DD HH:MM:SS (PID)>   > extsetup for foobar took * (glob)
  YYYY/MM/DD HH:MM:SS (PID)> > all extsetup took * (glob)
  YYYY/MM/DD HH:MM:SS (PID)> - executing remaining aftercallbacks
  YYYY/MM/DD HH:MM:SS (PID)> > remaining aftercallbacks completed in * (glob)
  YYYY/MM/DD HH:MM:SS (PID)> - loading extension registration objects
  YYYY/MM/DD HH:MM:SS (PID)> > extension registration object loading took * (glob)
  YYYY/MM/DD HH:MM:SS (PID)> > extension foobar take a total of * to load (glob)
  YYYY/MM/DD HH:MM:SS (PID)> extension loading complete
  YYYY/MM/DD HH:MM:SS (PID)> loading additional extensions
  YYYY/MM/DD HH:MM:SS (PID)> - processing 1 entries
  YYYY/MM/DD HH:MM:SS (PID)> > loaded 0 extensions, total time * (glob)
  YYYY/MM/DD HH:MM:SS (PID)> - loading configtable attributes
  YYYY/MM/DD HH:MM:SS (PID)> - executing uisetup hooks
  YYYY/MM/DD HH:MM:SS (PID)> > all uisetup took * (glob)
  YYYY/MM/DD HH:MM:SS (PID)> - executing extsetup hooks
  YYYY/MM/DD HH:MM:SS (PID)> > all extsetup took * (glob)
  YYYY/MM/DD HH:MM:SS (PID)> - executing remaining aftercallbacks
  YYYY/MM/DD HH:MM:SS (PID)> > remaining aftercallbacks completed in * (glob)
  YYYY/MM/DD HH:MM:SS (PID)> - loading extension registration objects
  YYYY/MM/DD HH:MM:SS (PID)> > extension registration object loading took * (glob)
  YYYY/MM/DD HH:MM:SS (PID)> extension loading complete
  YYYY/MM/DD HH:MM:SS (PID)> - executing reposetup hooks
  YYYY/MM/DD HH:MM:SS (PID)>   - running reposetup for foobar
  reposetup called for a
  ui == repo.ui
  YYYY/MM/DD HH:MM:SS (PID)>   > reposetup for foobar took * (glob)
  YYYY/MM/DD HH:MM:SS (PID)> > all reposetup took * (glob)
  Foo

  $ cd ..

  $ echo 'foobar = !' >> $HGRCPATH