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view tests/test-demandimport.py @ 39232:0a5b20c107a6
repository: remove storedeltachains from ifilestorage
The ifilestorage interface was bootstrapped from requirements of
callers outside the storage implementation (revlogs). I believe we
even made some members public so they could be part of the interface!
Historically, the changegroup code was a gross offender when it
came to accessing low-level storage primitives. There are a handful
of members on the ifilestorage interface that are/were used only
for changegroup code.
With the recent refactor of changegroup code and the establishment
of a formal API on the storage interface for producing revision
deltas, the changegroup code is no longer accessing these low-level
primitives related to delta generation directly. Instead, things
are abstracted away in the storage implementation.
This means we can remove elements from the storage interface that
are no longer needed.
We start with "storedeltachains."
We remove it from the interface. Then we make it a private
attribute and update all references.
.. api:: storedeltachains has been dropped from ifilestorage interface
.. api:: storedeltachains on revlog classes is now _storedeltachains
Differential Revision: https://phab.mercurial-scm.org/D4227
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Thu, 09 Aug 2018 16:11:24 -0700 |
parents | 1d0610fdd63b |
children | dffd6a301570 |
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from __future__ import absolute_import, print_function from mercurial import demandimport demandimport.enable() import os import subprocess import sys # Only run if demandimport is allowed if subprocess.call(['python', '%s/hghave' % os.environ['TESTDIR'], 'demandimport']): sys.exit(80) if os.name != 'nt': try: import distutils.msvc9compiler print('distutils.msvc9compiler needs to be an immediate ' 'importerror on non-windows platforms') distutils.msvc9compiler except ImportError: pass import re rsub = re.sub def f(obj): l = repr(obj) l = rsub("0x[0-9a-fA-F]+", "0x?", l) l = rsub("from '.*'", "from '?'", l) l = rsub("'<[a-z]*>'", "'<whatever>'", l) return l demandimport.disable() os.environ['HGDEMANDIMPORT'] = 'disable' # this enable call should not actually enable demandimport! demandimport.enable() from mercurial import node print("node =", f(node)) # now enable it for real del os.environ['HGDEMANDIMPORT'] demandimport.enable() # Test access to special attributes through demandmod proxy from mercurial import error as errorproxy print("errorproxy =", f(errorproxy)) print("errorproxy.__doc__ = %r" % (' '.join(errorproxy.__doc__.split()[:3]) + ' ...')) print("errorproxy.__name__ = %r" % errorproxy.__name__) # __name__ must be accessible via __dict__ so the relative imports can be # resolved print("errorproxy.__dict__['__name__'] = %r" % errorproxy.__dict__['__name__']) print("errorproxy =", f(errorproxy)) import os print("os =", f(os)) print("os.system =", f(os.system)) print("os =", f(os)) from mercurial.utils import procutil print("procutil =", f(procutil)) print("procutil.system =", f(procutil.system)) print("procutil =", f(procutil)) print("procutil.system =", f(procutil.system)) from mercurial import hgweb print("hgweb =", f(hgweb)) print("hgweb_mod =", f(hgweb.hgweb_mod)) print("hgweb =", f(hgweb)) import re as fred print("fred =", f(fred)) import re as remod print("remod =", f(remod)) import sys as re print("re =", f(re)) print("fred =", f(fred)) print("fred.sub =", f(fred.sub)) print("fred =", f(fred)) remod.escape # use remod print("remod =", f(remod)) print("re =", f(re)) print("re.stderr =", f(re.stderr)) print("re =", f(re)) import contextlib print("contextlib =", f(contextlib)) try: from contextlib import unknownattr print('no demandmod should be created for attribute of non-package ' 'module:\ncontextlib.unknownattr =', f(unknownattr)) except ImportError as inst: print('contextlib.unknownattr = ImportError: %s' % rsub(r"'", '', str(inst))) from mercurial import util # Unlike the import statement, __import__() function should not raise # ImportError even if fromlist has an unknown item # (see Python/import.c:import_module_level() and ensure_fromlist()) contextlibimp = __import__('contextlib', globals(), locals(), ['unknownattr']) print("__import__('contextlib', ..., ['unknownattr']) =", f(contextlibimp)) print("hasattr(contextlibimp, 'unknownattr') =", util.safehasattr(contextlibimp, 'unknownattr'))