def configwizard()

in hgext/configwizard/__init__.py [0:0]
80 lines of code
28 McCabe index (conditional complexity)

def configwizard(ui, repo, statedir=None, **opts):
    """Ensure your Mercurial configuration is up to date."""
    runsteps = set(wizardsteps)

    # Mercurial <1.7 had a bug where monkeypatching ui.__class__
    # during uisetup() doesn't work. So we do our own ui.hasconfig()
    # here. Other uses of ui.hasconfig() are allowed, as they will
    # have a properly monkeypatched ui.__class__.
    if b"steps" in ui._data(False)._data.get(b"configwizard", {}):
        runsteps = set(ui.configlist(b"configwizard", b"steps"))

    hgversion = util.versiontuple(n=3)

    # The point release version can be None for e.g. X.Y versions. Normalize
    # to make tuple compares work.
    if hgversion[2] is None:
        hgversion = (hgversion[0], hgversion[1], 0)

    if hgversion < MINIMUM_SUPPORTED_VERSION:
        ui.warn(
            VERSION_TOO_OLD
            % (
                hgversion[0],
                hgversion[1],
                MINIMUM_SUPPORTED_VERSION[0],
                MINIMUM_SUPPORTED_VERSION[1],
            )
        )
        raise error.Abort(b"upgrade Mercurial then run again")

    update_evolve(ui)

    if not runsteps:
        # Don't prompt if we're asked to not do anything beyond the version
        # check and evolve update.
        return 0

    uiprompt(ui, INITIAL_MESSAGE, default=b"<RETURN>")

    with demandimport.deactivated():
        # Mercurial 4.2 moved function from scmutil to rcutil.
        try:
            from mercurial.rcutil import userrcpath
        except ImportError:
            from mercurial.scmutil import userrcpath

    configpaths = [p for p in userrcpath() if os.path.exists(p)]
    path = configpaths[0] if configpaths else userrcpath()[0]
    cw = configobjwrapper(path)

    if b"hgversion" in runsteps:
        if _checkhgversion(ui, hgversion):
            return 1

    if b"pyversion" in runsteps:
        _checkpyversion(ui)

    if b"username" in runsteps:
        _checkusername(ui, cw)

    if b"tweakdefaults" in runsteps:
        _checktweakdefaults(ui, cw)

    if b"diff" in runsteps:
        _checkdiffsettings(ui, cw)

    if b"historyediting" in runsteps:
        _checkhistoryediting(ui, cw, hgversion)

    if b"evolve" in runsteps:
        _checkevolve(ui, cw)

    if b"fsmonitor" in runsteps:
        _checkfsmonitor(ui, cw, hgversion)

    if b"blackbox" in runsteps:
        _promptnativeextension(
            ui,
            cw,
            b"blackbox",
            b"Enable logging of commands to help diagnose bugs "
            b"and performance problems",
        )

    if b"shelve" in runsteps:
        _promptnativeextension(
            ui, cw, b"shelve", b"Enable the shelve feature. Equivalent to git stash"
        )

    if b"security" in runsteps:
        _checksecurity(ui, cw, hgversion)

    if b"firefoxtree" in runsteps:
        _promptvctextension(ui, cw, b"firefoxtree", FIREFOXTREE_INFO)

    if b"clang-format" in runsteps:
        _promptvctextension(ui, cw, b"clang-format", CLANG_FORMAT_INFO)

    if b"js-format" in runsteps:
        _promptvctextension(ui, cw, b"js-format", JS_FORMAT_INFO)

    if b"wip" in runsteps:
        _checkwip(ui, cw)

    if b"smartannotate" in runsteps:
        _checksmartannotate(ui, cw)

    if b"pushtotry" in runsteps:
        _promptvctextension(ui, cw, b"push-to-try", PUSHTOTRY_INFO)

    if b"multiplevct" in runsteps:
        _checkmultiplevct(ui, cw)

    if b"configchange" in runsteps:
        _handleconfigchange(ui, cw)

    if b"permissions" in runsteps:
        _checkpermissions(ui, cw)

    return 0