contrib/debugshell.py
author Anton Shestakov <av6@dwimlabs.net>
Fri, 01 Apr 2016 21:18:24 +0800
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child 29397 844f72885fb9
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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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    cmdutil,
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    demandimport,
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)
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cmdtable = {}
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command = cmdutil.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.manifest,
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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.manifest
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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)