Mercurial > hg
view tests/test-extensions-wrapfunction.py @ 39859:32d3ed3023bb
upgrade: use rawsize() instead of revlog index
The revlog index is a very low-level data structure and it shouldn't
be exposed to the storage interface - at least not in its current
form.
upgrade.py is the only consumer of the index attribute on file storage
in the repository.
This commit rewrites that final consumer to use rawsize() instead of
going through the index. This is actually the more proper API to use,
as rawsize() will accurately report the size of revisions which have
a negative size in the index.
Differential Revision: https://phab.mercurial-scm.org/D4719
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Mon, 24 Sep 2018 09:38:27 -0700 |
parents | ac865f020b99 |
children | 2372284d9457 |
line wrap: on
line source
from __future__ import absolute_import, print_function from mercurial import extensions def genwrapper(x): def f(orig, *args, **kwds): return [x] + orig(*args, **kwds) f.x = x return f def getid(wrapper): return getattr(wrapper, 'x', '-') wrappers = [genwrapper(i) for i in range(5)] class dummyclass(object): def getstack(self): return ['orig'] dummy = dummyclass() def batchwrap(wrappers): for w in wrappers: extensions.wrapfunction(dummy, 'getstack', w) print('wrap %d: %s' % (getid(w), dummy.getstack())) def batchunwrap(wrappers): for w in wrappers: result = None try: result = extensions.unwrapfunction(dummy, 'getstack', w) msg = str(dummy.getstack()) except (ValueError, IndexError) as e: msg = e.__class__.__name__ print('unwrap %s: %s: %s' % (getid(w), getid(result), msg)) batchwrap(wrappers + [wrappers[0]]) batchunwrap([(wrappers[i] if i is not None and i >= 0 else None) for i in [3, None, 0, 4, 0, 2, 1, None]]) wrap0 = extensions.wrappedfunction(dummy, 'getstack', wrappers[0]) wrap1 = extensions.wrappedfunction(dummy, 'getstack', wrappers[1]) # Use them in a different order from how they were created to check that # the wrapping happens in __enter__, not in __init__ print('context manager', dummy.getstack()) with wrap1: print('context manager', dummy.getstack()) with wrap0: print('context manager', dummy.getstack()) # Bad programmer forgets to unwrap the function, but the context # managers still unwrap their wrappings. extensions.wrapfunction(dummy, 'getstack', wrappers[2]) print('context manager', dummy.getstack()) print('context manager', dummy.getstack()) print('context manager', dummy.getstack()) # Wrap callable object which has no __name__ class callableobj(object): def __call__(self): return ['orig'] dummy.cobj = callableobj() extensions.wrapfunction(dummy, 'cobj', wrappers[0]) print('wrap callable object', dummy.cobj())