tags-cache: skip the filternode step if we are not going to use it
When warming the hgtagsfnodescache, we don't need the actual result, so we can
simply skip the part that "filter" fnode we read from the cache. So provide a
quite visible speed up to the top level `hg debugupdatecache` function.
### data-env-vars.name = mozilla-try-2023-03-22-zstd-sparse-revlog
# benchmark.name = hg.debug.debug-update-cache
# bin-env-vars.hg.flavor = default
# bin-env-vars.hg.py-re2-module = default
# benchmark.variants.pre-state = warm
before: 19.947581
after: 18.916804 (-5.17%, -1.03)
# debugshell extension
"""a python shell with repo, changelog & manifest objects"""
import code
import mercurial
import sys
from mercurial import (
demandimport,
pycompat,
registrar,
)
cmdtable = {}
command = registrar.command(cmdtable)
def pdb(ui, repo, msg, **opts):
objects = {
'mercurial': mercurial,
'repo': repo,
'cl': repo.changelog,
'mf': repo.manifestlog,
}
code.interact(msg, local=objects)
def ipdb(ui, repo, msg, **opts):
import IPython
cl = repo.changelog
mf = repo.manifestlog
cl, mf # use variables to appease pyflakes
IPython.embed()
@command(b'debugshell|dbsh', [])
def debugshell(ui, repo, **opts):
bannermsg = "loaded repo : %s\n" "using source: %s" % (
pycompat.sysstr(repo.root),
mercurial.__path__[0],
)
pdbmap = {'pdb': 'code', 'ipdb': 'IPython'}
debugger = ui.config(b"ui", b"debugger")
if not debugger:
debugger = 'pdb'
else:
debugger = pycompat.sysstr(debugger)
# if IPython doesn't exist, fallback to code.interact
try:
with demandimport.deactivated():
__import__(pdbmap[debugger])
except ImportError:
ui.warnnoi18n(
b"%s debugger specified but %s module was not found\n"
% (debugger, pdbmap[debugger])
)
debugger = b'pdb'
getattr(sys.modules[__name__], debugger)(ui, repo, bannermsg, **opts)