Mercurial > hg
view contrib/debugshell.py @ 28008:86c4cbdaffee
revset: use manifest.matches in _follow revset
The old _follow revset iterated over every file in the commit and checked if it
matched. For repos with large manifests, this could take 500ms. By switching to
use manifest.matches() we can take advantage of the fastpaths built in to
manifest.py that allows iterating over only the files in the matcher when it's a
simple matcher. This brings the time spent down from 500ms to 0ms during simple
operations like 'hg log -f file.txt'.
author | Durham Goode <durham@fb.com> |
---|---|
date | Fri, 05 Feb 2016 13:30:25 -0800 |
parents | e4b512bb6386 |
children | e28dc6de38e7 |
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# debugshell extension """a python shell with repo, changelog & manifest objects""" import sys import mercurial import code from mercurial import ( cmdutil, demandimport, ) cmdtable = {} command = cmdutil.command(cmdtable) def pdb(ui, repo, msg, **opts): objects = { 'mercurial': mercurial, 'repo': repo, 'cl': repo.changelog, 'mf': repo.manifest, } code.interact(msg, local=objects) def ipdb(ui, repo, msg, **opts): import IPython cl = repo.changelog mf = repo.manifest cl, mf # use variables to appease pyflakes IPython.embed() @command('debugshell|dbsh', []) def debugshell(ui, repo, **opts): bannermsg = "loaded repo : %s\n" \ "using source: %s" % (repo.root, mercurial.__path__[0]) pdbmap = { 'pdb' : 'code', 'ipdb' : 'IPython' } debugger = ui.config("ui", "debugger") if not debugger: debugger = 'pdb' # if IPython doesn't exist, fallback to code.interact try: with demandimport.deactivated(): __import__(pdbmap[debugger]) except ImportError: ui.warn("%s debugger specified but %s module was not found\n" % (debugger, pdbmap[debugger])) debugger = 'pdb' getattr(sys.modules[__name__], debugger)(ui, repo, bannermsg, **opts)