contrib/debugshell.py
author Pulkit Goyal <pulkit@yandex-team.ru>
Wed, 05 Sep 2018 01:18:29 +0530
changeset 39572 b6b9488aae4c
parent 32337 46ba2cdda476
child 41759 aaad36b88298
permissions -rw-r--r--
setup: don't support py 3.5.0, 3.5.1, 3.5.2 because of bug in codecs codecs.escape_encode() raises SystemError if an empty bytestring is passed. We do that at some places in our code and because of this bug, things break. Therefore we can't support the mentioned version. The bug was fixed in 3.5.3, 3.6.0 beta 2. We can't support 3.6.0 anyway because of bug in formatting bytestrings. Link to the python bug: https://bugs.python.org/issue25270 Differential Revision: https://phab.mercurial-scm.org/D4475
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# debugshell extension
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"""a python shell with repo, changelog & manifest objects"""
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from __future__ import absolute_import
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import code
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import mercurial
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import sys
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from mercurial import (
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    demandimport,
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    registrar,
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)
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cmdtable = {}
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command = registrar.command(cmdtable)
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def pdb(ui, repo, msg, **opts):
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    objects = {
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        'mercurial': mercurial,
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        'repo': repo,
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        'cl': repo.changelog,
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        'mf': repo.manifestlog,
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    }
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    code.interact(msg, local=objects)
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def ipdb(ui, repo, msg, **opts):
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    import IPython
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    cl = repo.changelog
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    mf = repo.manifestlog
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    cl, mf # use variables to appease pyflakes
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    IPython.embed()
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@command('debugshell|dbsh', [])
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def debugshell(ui, repo, **opts):
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    bannermsg = "loaded repo : %s\n" \
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                "using source: %s" % (repo.root,
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                                      mercurial.__path__[0])
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    pdbmap = {
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        'pdb'  : 'code',
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        'ipdb' : 'IPython'
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    }
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    debugger = ui.config("ui", "debugger")
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    if not debugger:
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        debugger = 'pdb'
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    # if IPython doesn't exist, fallback to code.interact
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    try:
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        with demandimport.deactivated():
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            __import__(pdbmap[debugger])
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    except ImportError:
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        ui.warn(("%s debugger specified but %s module was not found\n")
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                % (debugger, pdbmap[debugger]))
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        debugger = 'pdb'
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    getattr(sys.modules[__name__], debugger)(ui, repo, bannermsg, **opts)