pull_request_id = action_params

        nice_id = PullRequest.make_nice_id(pull_request_id)

        deleted = user_log.repository is None

        if deleted:

            repo_name = user_log.repository_name

        else:

            repo_name = user_log.repository.repo_name

        return link_to(_('Pull request %s') % nice_id,

                    url('pullrequest_show', repo_name=repo_name,

                    pull_request_id=pull_request_id))

    def get_archive_name():

        archive_name = action_params

        return archive_name

    # action : translated str, callback(extractor), icon

    action_map = {

        'user_deleted_repo':           (_('[deleted] repository'),

                                        None, 'icon-trashcan'),

        'user_created_repo':           (_('[created] repository'),

                                        None, 'icon-plus'),

        'user_created_fork':           (_('[created] repository as fork'),

                                        None, 'icon-fork'),

        'user_forked_repo':            (_('[forked] repository'),

                                        get_fork_name, 'icon-fork'),

        'user_updated_repo':           (_('[updated] repository'),

                                        None, 'icon-pencil'),

        'user_downloaded_archive':      (_('[downloaded] archive from repository'),

                                        get_archive_name, 'icon-download-cloud'),

        'admin_deleted_repo':          (_('[delete] repository'),

                                        None, 'icon-trashcan'),

        'admin_created_repo':          (_('[created] repository'),

                                        None, 'icon-plus'),

        'admin_forked_repo':           (_('[forked] repository'),

                                        None, 'icon-fork'),

        'admin_updated_repo':          (_('[updated] repository'),

                                        None, 'icon-pencil'),

        'admin_created_user':          (_('[created] user'),

                                        get_user_name, 'icon-user'),

        'admin_updated_user':          (_('[updated] user'),

                                        get_user_name, 'icon-user'),

        'admin_created_users_group':   (_('[created] user group'),

                                        get_users_group, 'icon-pencil'),

        'admin_updated_users_group':   (_('[updated] user group'),

                                        get_users_group, 'icon-pencil'),

        'user_commented_revision':     (_('[commented] on revision in repository'),

                                        get_cs_links, 'icon-comment'),

        'user_commented_pull_request': (_('[commented] on pull request for'),

                                        get_pull_request, 'icon-comment'),

        'user_closed_pull_request':    (_('[closed] pull request for'),

                                        get_pull_request, 'icon-ok'),

        'push':                        (_('[pushed] into'),

                                        get_cs_links, 'icon-move-up'),

        'push_local':                  (_('[committed via Kallithea] into repository'),

                                        get_cs_links, 'icon-pencil'),

        'push_remote':                 (_('[pulled from remote] into repository'),

                                        get_cs_links, 'icon-move-up'),

        'pull':                        (_('[pulled] from'),

                                        None, 'icon-move-down'),

        'started_following_repo':      (_('[started following] repository'),

                                        None, 'icon-heart'),

        'stopped_following_repo':      (_('[stopped following] repository'),

                                        None, 'icon-heart-empty'),

    }

    action_str = action_map.get(action, action)

    if feed:

        action = action_str[0].replace('[', '').replace(']', '')

    else:

        action = action_str[0] \

            .replace('[', '<b>') \

            .replace(']', '</b>')

    action_params_func = lambda: ""

    if callable(action_str[1]):

        action_params_func = action_str[1]

    def action_parser_icon():

        action = user_log.action

        action_params = None

        x = action.split(':')

        if len(x) > 1:

            action, action_params = x

        ico = action_map.get(action, ['', '', ''])[2]

        html = """<i class="%s"></i>""" % ico

        return literal(html)

    # returned callbacks we need to call to get

    return [lambda: literal(action), action_params_func, action_parser_icon]

#==============================================================================

# GRAVATAR URL

#==============================================================================

def gravatar_div(email_address, cls='', size=30, **div_attributes):

    """Return an html literal with a span around a gravatar if they are enabled.

    Extra keyword parameters starting with 'div_' will get the prefix removed

    and '_' changed to '-' and be used as attributes on the div. The default

    class is 'gravatar'.

    """

    from tg import tmpl_context as c

    if not c.visual.use_gravatar:

        return ''

    if 'div_class' not in div_attributes:

        div_attributes['div_class'] = "gravatar"

    attributes = []

    for k, v in sorted(div_attributes.items()):

        assert k.startswith('div_'), k

        attributes.append(' %s="%s"' % (k[4:].replace('_', '-'), escape(v)))

    return literal("""<span%s>%s</span>""" %

                   (''.join(attributes),

                    gravatar(email_address, cls=cls, size=size)))

def gravatar(email_address, cls='', size=30):

    """return html element of the gravatar

    This method will return an <img> with the resolution double the size (for

    retina screens) of the image. If the url returned from gravatar_url is

    empty then we fallback to using an icon.

    """

    from tg import tmpl_context as c

    if not c.visual.use_gravatar:

        return ''

    src = gravatar_url(email_address, size * 2)

    if src:

        # here it makes sense to use style="width: ..." (instead of, say, a

        # stylesheet) because we using this to generate a high-res (retina) size

        html = ('<i class="icon-gravatar {cls}"'

                ' style="font-size: {size}px;background-size: {size}px;background-image: url(\'{src}\')"'

                '></i>').format(cls=cls, size=size, src=src)

    else:

        # if src is empty then there was no gravatar, so we use a font icon

        html = ("""<i class="icon-user {cls}" style="font-size: {size}px;"></i>"""

            .format(cls=cls, size=size, src=src))

    return literal(html)

def gravatar_url(email_address, size=30, default=''):

    # doh, we need to re-import those to mock it later

    from kallithea.config.routing import url

    from kallithea.model.db import User

    from tg import tmpl_context as c

    if not c.visual.use_gravatar:

        return ""

    _def = 'anonymous@kallithea-scm.org'  # default gravatar

    email_address = email_address or _def

    if email_address == _def:

        return default

    parsed_url = urlparse.urlparse(url.current(qualified=True))

    url = (c.visual.gravatar_url or User.DEFAULT_GRAVATAR_URL) \

               .replace('{email}', email_address) \

               .replace('{md5email}', hashlib.md5(safe_str(email_address).lower()).hexdigest()) \

               .replace('{netloc}', parsed_url.netloc) \

               .replace('{scheme}', parsed_url.scheme) \

               .replace('{size}', safe_str(size))

    return url

def changed_tooltip(nodes):

    """

    Generates a html string for changed nodes in changeset page.

    It limits the output to 30 entries

    :param nodes: LazyNodesGenerator

    """

    if nodes:

        pref = ': <br/> '

        suf = ''

        if len(nodes) > 30:

            suf = '<br/>' + _(' and %s more') % (len(nodes) - 30)

        return literal(pref + '<br/> '.join([safe_unicode(x.path)

                                             for x in nodes[:30]]) + suf)

    else:

        return ': ' + _('No files')

def fancy_file_stats(stats):

    """

        if self.step >= self.steps:

            return '='

        return chars[self.step % len(chars)]

class BarOnlyProgressBar(ProgressBar):

    default_elements = ['bar', 'steps']

    def get_bar(self):

        bar = super(BarOnlyProgressBar, self).get_bar()

        perc = self.get_percentage()

        perc_text = '%s%%' % int(perc)

        text = (' %s%% ' % (perc_text)).center(self.width, '=')

        L = text.find(' ')

        R = text.rfind(' ')

        bar = ' '.join((bar[:L], perc_text, bar[R:]))

        return bar

class AnimatedColoredProgressBar(AnimatedProgressBar,

                                 ColoredProgressBar):

    pass

class BarOnlyColoredProgressBar(ColoredProgressBar,

                                BarOnlyProgressBar):

    pass

def main():

    import time

    print "Standard progress bar..."

    bar = ProgressBar(30)

    for x in xrange(1, 31):

        bar.render(x)

        time.sleep(0.02)

    bar.stream.write('\n')

    print

    print "Empty bar..."

    bar = ProgressBar(50)

    bar.render(0)

    print

    print

    print "Colored bar..."

    bar = ColoredProgressBar(20)

    for x in bar:

        time.sleep(0.01)

    print

    print "Animated char bar..."

    bar = AnimatedProgressBar(20)

    for x in bar:

        time.sleep(0.01)

    print

    print "Animated + colored char bar..."

    bar = AnimatedColoredProgressBar(20)

    for x in bar:

        time.sleep(0.01)

    print

    print "Bar only ..."

    bar = BarOnlyProgressBar(20)

    for x in bar:

        time.sleep(0.01)

    print

    print "Colored, longer bar-only, eta, total time ..."

    bar = BarOnlyColoredProgressBar(40)

    bar.width = 60

    bar.elements += ['time', 'eta']

    for x in bar:

        time.sleep(0.01)

    print

    print

    print "File transfer bar, breaks after 2 seconds ..."

    total_bytes = 1024 * 1024 * 2

    bar = ProgressBar(total_bytes)

    bar.width = 50

    bar.elements.remove('steps')

    bar.elements += ['transfer', 'time', 'eta', 'speed']

    for x in xrange(0, bar.steps, 1024):

        bar.render(x)

        time.sleep(0.01)

        now = datetime.datetime.now()

        if now - bar.started >= datetime.timedelta(seconds=2):

            break

    print

    print

if __name__ == '__main__':

    main()