try:

                if c.visual.allow_repo_location_change:

                    sett = Ui.get_by_key('paths', '/')

                    sett.ui_value = form_result['paths_root_path']

                # HOOKS

                sett = Ui.get_by_key('hooks', Ui.HOOK_UPDATE)

                sett.ui_active = form_result['hooks_changegroup_update']

                sett = Ui.get_by_key('hooks', Ui.HOOK_REPO_SIZE)

                sett.ui_active = form_result['hooks_changegroup_repo_size']

                ## EXTENSIONS

                sett = Ui.get_or_create('extensions', 'largefiles')

                sett.ui_active = form_result['extensions_largefiles']

                sett = Ui.get_or_create('extensions', 'hgsubversion')

                sett.ui_active = form_result['extensions_hgsubversion']

                if sett.ui_active:

                    try:

                        import hgsubversion  # pragma: no cover

                    except ImportError:

                        raise HgsubversionImportError

        return real_path

    def create_settings(self, path):

        ui_config = [

            ('web', 'allow_archive', 'gz zip bz2', True),

            ('web', 'baseurl', '/', True),

            ('paths', '/', path, True),

            #('phases', 'publish', 'false', False)

            ('hooks', Ui.HOOK_UPDATE, 'hg update >&2', False),

            ('hooks', Ui.HOOK_REPO_SIZE, 'python:kallithea.lib.hooks.repo_size', True),

            ('extensions', 'largefiles', '', True),

            ('largefiles', 'usercache', os.path.join(path, '.cache', 'largefiles'), True),

            ('extensions', 'hgsubversion', '', False),

            ('extensions', 'hggit', '', False),

        ]

        for section, key, value, active in ui_config:

            ui_conf = Ui()

            setattr(ui_conf, 'ui_section', section)

            setattr(ui_conf, 'ui_key', key)

            setattr(ui_conf, 'ui_value', value)

            setattr(ui_conf, 'ui_active', active)

            self.sa.add(ui_conf)

def handle_git_pre_receive(repo_path, git_stdin_lines):

    """Called from Git pre-receive hook"""

    return 0

def handle_git_post_receive(repo_path, git_stdin_lines):

    """Called from Git post-receive hook"""

    baseui, repo = _hook_environment(repo_path)

    # the post push hook should never use the cached instance

    scm_repo = repo.scm_instance_no_cache()

        rev_data = []

        for l in git_stdin_lines:

            old_rev, new_rev, ref = l.strip().split(' ')

            _ref_data = ref.split('/')

            if _ref_data[1] in ['tags', 'heads']:

                rev_data.append({'old_rev': old_rev,

                                 'new_rev': new_rev,

                                 'ref': ref,

                                 'type': _ref_data[1],

                                 'name': '/'.join(_ref_data[2:])})

        git_revs = []

                    # delete branch case

                    git_revs += ['delete_branch=>%s' % push_ref['name']]

                else:

                    cmd = ['log', '%(old_rev)s..%(new_rev)s' % push_ref,

                           '--reverse', '--pretty=format:%H']

                    stdout, stderr = scm_repo.run_git_command(cmd)

                    git_revs += stdout.splitlines()

            elif _type == 'tags':

                git_revs += ['tag=>%s' % push_ref['name']]

        log_push_action(baseui, scm_repo, _git_revs=git_revs)

    return 0

        Handles pull action, push is handled by post-receive hook

        """

        from kallithea.lib.hooks import log_pull_action

        service = environ['QUERY_STRING'].split('=')

        if len(service) < 2:

            return

        from kallithea.model.db import Repository

        _repo = Repository.get_by_repo_name(repo_name)

        _repo = _repo.scm_instance

            log_pull_action(ui=baseui, repo=_repo._repo)

                          ui_.ui_key, ui_val)

                baseui.setconfig(safe_str(ui_.ui_section), safe_str(ui_.ui_key),

                                 ui_val)

        if clear_session:

            meta.Session.remove()

        # force set push_ssl requirement to False, Kallithea handles that

        baseui.setconfig('web', 'push_ssl', False)

        baseui.setconfig('web', 'allow_push', '*')

        # prevent interactive questions for ssh password / passphrase

        ssh = baseui.config('ui', 'ssh', default='ssh')

        baseui.setconfig('ui', 'ssh', '%s -oBatchMode=yes -oIdentitiesOnly=yes' % ssh)

    return baseui

def set_app_settings(config):

    """

    Updates app config with new settings from database

    :param config:

    """

    try:

        hgsettings = Setting.get_app_settings()

class Ui(Base, BaseDbModel):

    __tablename__ = 'ui'

    __table_args__ = (

        # FIXME: ui_key as key is wrong and should be removed when the corresponding

        # Ui.get_by_key has been replaced by the composite key

        UniqueConstraint('ui_key'),

        UniqueConstraint('ui_section', 'ui_key'),

        _table_args_default_dict,

    )

    HOOK_UPDATE = 'changegroup.update'

    HOOK_REPO_SIZE = 'changegroup.repo_size'

    ui_id = Column(Integer(), primary_key=True)

    ui_section = Column(String(255), nullable=False)

    ui_key = Column(String(255), nullable=False)

    ui_value = Column(String(255), nullable=True) # FIXME: not nullable?

    ui_active = Column(Boolean(), nullable=False, default=True)

    @classmethod

    def get_by_key(cls, section, key):

        """ Return specified Ui object, or None if not found. """

        return cls.query().filter_by(ui_section=section, ui_key=key).scalar()

    @classmethod

    def get_or_create(cls, section, key):

        """ Return specified Ui object, creating it if necessary. """

        setting = cls.get_by_key(section, key)

        if setting is None:

            setting = cls(ui_section=section, ui_key=key)

            Session().add(setting)

        return setting

    @classmethod

    def get_builtin_hooks(cls):

        q = cls.query()

        q = q.filter(cls.ui_section == 'hooks')

        return q.all()

    @classmethod

    def get_custom_hooks(cls):

        q = cls.query()

        q = q.filter(cls.ui_section == 'hooks')

        return q.all()

    @classmethod

    def get_repos_location(cls):

        return cls.get_by_key('paths', '/').ui_value

    @classmethod

    def create_or_update_hook(cls, key, val):

        new_ui = cls.get_or_create('hooks', key)

        new_ui.ui_active = True

        new_ui.ui_value = val

def ApplicationUiSettingsForm():

    class _ApplicationUiSettingsForm(formencode.Schema):

        allow_extra_fields = True

        filter_extra_fields = False

        paths_root_path = All(

            v.ValidPath(),

            v.UnicodeString(strip=True, min=1, not_empty=True)

        )

        hooks_changegroup_update = v.StringBoolean(if_missing=False)

        hooks_changegroup_repo_size = v.StringBoolean(if_missing=False)

        extensions_largefiles = v.StringBoolean(if_missing=False)

        extensions_hgsubversion = v.StringBoolean(if_missing=False)

        extensions_hggit = v.StringBoolean(if_missing=False)

    return _ApplicationUiSettingsForm

def DefaultPermissionsForm(repo_perms_choices, group_perms_choices,

                           user_group_perms_choices, create_choices,

                           create_on_write_choices, repo_group_create_choices,

                           user_group_create_choices, fork_choices,

    <div class="form">

            <div class="form-group">

                <label class="control-label">${_('Hooks')}:</label>

                <div>

                    <div class="checkbox">

                        <label>

                            ${h.checkbox('hooks_changegroup_repo_size','True')}

                            ${_('Show repository size after push')}

                        </label>

                    </div>

                    <div class="checkbox">

                        <label>

                            ${h.checkbox('hooks_changegroup_update','True')}

                            ${_('Update repository after push (hg update)')}

                        </label>

                    </div>

                </div>

            </div>

            <div class="form-group">

                <label class="control-label">${_('Mercurial extensions')}:</label>

                <div>

                    <div class="checkbox">

                        <label>

                            ${h.checkbox('extensions_largefiles','True')}