setup: drop the hack to disable linker warning 4197 on Windows
I don't see this when building on Windows with py3.8 or py3.12, so either the
code was fixed, or (more likely) the compiler stopped warning about it some time
after VS 2008. If we do have to put this back, it would probably be better to
put a `#pragma` in a header file somewhere, and avoid `setuptools` technical
debt.
# Copyright 2016-present Facebook. All Rights Reserved.
#
# support: fastannotate support for hgweb, and filectx
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
from mercurial import (
context as hgcontext,
dagop,
extensions,
hgweb,
patch,
util,
)
from . import (
context,
revmap,
)
class _lazyfctx:
"""delegates to fctx but do not construct fctx when unnecessary"""
def __init__(self, repo, node, path):
self._node = node
self._path = path
self._repo = repo
def node(self):
return self._node
def path(self):
return self._path
@util.propertycache
def _fctx(self):
return context.resolvefctx(self._repo, self._node, self._path)
def __getattr__(self, name):
return getattr(self._fctx, name)
def _convertoutputs(repo, annotated, contents):
"""convert fastannotate outputs to vanilla annotate format"""
# fastannotate returns: [(nodeid, linenum, path)], [linecontent]
# convert to what fctx.annotate returns: [annotateline]
results = []
fctxmap = {}
annotateline = dagop.annotateline
for i, (hsh, linenum, path) in enumerate(annotated):
if (hsh, path) not in fctxmap:
fctxmap[(hsh, path)] = _lazyfctx(repo, hsh, path)
# linenum: the user wants 1-based, we have 0-based.
lineno = linenum + 1
fctx = fctxmap[(hsh, path)]
line = contents[i]
results.append(annotateline(fctx=fctx, lineno=lineno, text=line))
return results
def _getmaster(fctx):
"""(fctx) -> str"""
return fctx._repo.ui.config(b'fastannotate', b'mainbranch') or b'default'
def _doannotate(fctx, follow=True, diffopts=None):
"""like the vanilla fctx.annotate, but do it via fastannotate, and make
the output format compatible with the vanilla fctx.annotate.
may raise Exception, and always return line numbers.
"""
master = _getmaster(fctx)
with context.fctxannotatecontext(fctx, follow, diffopts) as ac:
try:
annotated, contents = ac.annotate(
fctx.rev(), master=master, showpath=True, showlines=True
)
except Exception:
ac.rebuild() # try rebuild once
fctx._repo.ui.debug(
b'fastannotate: %s: rebuilding broken cache\n' % fctx._path
)
try:
annotated, contents = ac.annotate(
fctx.rev(), master=master, showpath=True, showlines=True
)
except Exception:
raise
assert annotated and contents
return _convertoutputs(fctx._repo, annotated, contents)
def _hgwebannotate(orig, fctx, ui):
diffopts = patch.difffeatureopts(
ui, untrusted=True, section=b'annotate', whitespace=True
)
return _doannotate(fctx, diffopts=diffopts)
def _fctxannotate(
orig, self, follow=False, linenumber=False, skiprevs=None, diffopts=None
):
if skiprevs:
# skiprevs is not supported yet
return orig(
self, follow, linenumber, skiprevs=skiprevs, diffopts=diffopts
)
try:
return _doannotate(self, follow, diffopts)
except Exception as ex:
self._repo.ui.debug(
b'fastannotate: falling back to the vanilla annotate: %r\n' % ex
)
return orig(self, follow=follow, skiprevs=skiprevs, diffopts=diffopts)
def _remotefctxannotate(orig, self, follow=False, skiprevs=None, diffopts=None):
# skipset: a set-like used to test if a fctx needs to be downloaded
with context.fctxannotatecontext(self, follow, diffopts) as ac:
skipset = revmap.revmap(ac.revmappath)
return orig(
self, follow, skiprevs=skiprevs, diffopts=diffopts, prefetchskip=skipset
)
def replacehgwebannotate():
extensions.wrapfunction(hgweb.webutil, 'annotate', _hgwebannotate)
def replacefctxannotate():
extensions.wrapfunction(hgcontext.basefilectx, 'annotate', _fctxannotate)