# Code dedicated to adding various "safeguard" around evolution

#

# Some of these will be pollished and upstream when mature. Some other will be

# replaced by better alternative later.

#

# Copyright 2017 Pierre-Yves David <pierre-yves.david@ens-lyon.org>

#

# This software may be used and distributed according to the terms of the

# GNU General Public License version 2 or any later version.

from mercurial import error

from mercurial.i18n import _

from . import exthelper

eh = exthelper.exthelper()

eh.configitem('experimental', 'auto-publish')

@eh.reposetup

def setuppublishprevention(ui, repo):

    class noautopublishrepo(repo.__class__):

        def checkpush(self, pushop):

            super(noautopublishrepo, self).checkpush(pushop)

            behavior = repo.ui.config('experimental', 'auto-publish', 'default')

            remotephases = pushop.remote.listkeys('phases')

            publishing = remotephases.get('publishing', False)

            if behavior in ('warn', 'abort') and publishing:

                if pushop.revs is None:

                    published = repo.filtered('served').revs("not public()")

                else:

                    published = repo.revs("::%ln - public()", pushop.revs)

                if published:

                    if behavior == 'warn':

                        repo.ui.warn(_('%i changesets about to be published\n') % len(published))

                    elif behavior == 'abort':

                        msg = _('push would publish 1 changesets')

                        hint = _("behavior controlled by 'experimental.auto-publish' config")

                        raise error.Abort(msg, hint=hint)

    repo.__class__ = noautopublishrepo