view contrib/debugshell.py @ 43117:8ff1ecfadcd1

cleanup: join string literals that are already on one line

Thanks to Kyle for noticing this and for providing the regular
expression to run on the codebase.

This patch has been reviewed by the test suite and they approved of
it.

# skip-blame: fallout from mass reformatting

Differential Revision: https://phab.mercurial-scm.org/D7028

# debugshell extension
"""a python shell with repo, changelog & manifest objects"""

from __future__ import absolute_import
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)