repo = user_log.repository.scm_instance

        def lnk(rev, repo_name):

            if isinstance(rev, BaseChangeset):

                lbl = 'r%s:%s' % (rev.revision, rev.short_id)

                           revision=rev.raw_id)

                title = tooltip(rev.message)

            else:

                lbl = '%s' % rev

                _url = '#'

                title = _('Changeset not found')

    # Fix negative offsets (there is 1 second between 10:59:59 and 11:00:00,

    # not 1 hour, -59 minutes and -59 seconds)

    for num, length in [(5, 60), (4, 60), (3, 24)]:  # seconds, minutes, hours

        part = order[num]

        carry_part = order[num - 1]

        if deltas[part] < 0:

            deltas[part] += length

            deltas[carry_part] -= 1

    # Same thing for days except that the increment depends on the (variable)

    # number of days in the month

    if deltas['day'] < 0:

        if prevdate.month == 2 and (prevdate.year % 4 == 0 and

            (prevdate.year % 100 != 0 or prevdate.year % 400 == 0)):

            deltas['day'] += 29

        else:

            deltas['day'] += month_lengths[prevdate.month - 1]

        deltas['month'] -= 1

    if deltas['month'] < 0:

        deltas['month'] += 12

        deltas['year'] -= 1

    # Format the result

    fmt_funcs = {

        'year': lambda d: ungettext(u'%d year', '%d years', d) % d,

        'month': lambda d: ungettext(u'%d month', '%d months', d) % d,

        'day': lambda d: ungettext(u'%d day', '%d days', d) % d,

        'hour': lambda d: ungettext(u'%d hour', '%d hours', d) % d,

        'minute': lambda d: ungettext(u'%d minute', '%d minutes', d) % d,

        'second': lambda d: ungettext(u'%d second', '%d seconds', d) % d,

    }

    for i, part in enumerate(order):

        value = deltas[part]

        if value == 0:

            continue

        if i < 5:

            sub_part = order[i + 1]

            sub_value = deltas[sub_part]

        else:

            sub_value = 0

        if sub_value == 0:

            return _(u'%s ago') % fmt_funcs[part](value)

        return _(u'%s and %s ago') % (fmt_funcs[part](value),

            fmt_funcs[sub_part](sub_value))

    return _(u'just now')

        _copts = ['-c', 'core.quotepath=false', ]

        _str_cmd = False

        if isinstance(cmd, basestring):

            cmd = [cmd]

            _str_cmd = True

        gitenv = os.environ

        gitenv['GIT_CONFIG_NOGLOBAL'] = '1'

        cmd = ['git'] + _copts + cmd

        if _str_cmd:

            cmd = ' '.join(cmd)

                  ${h.submit('save',_('Save'),class_="ui-button")}

                  ${h.reset('reset',_('Reset'),class_="ui-button")}

                </div>

            </div>

        </div>

    ${h.end_form()}

                                        action='archivefile',

                                        repo_name=HG_REPO,

                                        fname=fname))

            self.assertEqual(response.status, '200 OK')

            heads = [

                ('Content-Disposition', 'attachment; filename=%s' % filename),

                ('Content-Type', '%s; charset=utf-8' % info[0]),

            ]

            self.assertEqual(response.response._headers.items(), heads)

    def test_archival_wrong_ext(self):

        self.log_user()

        for arch_ext in ['tar', 'rar', 'x', '..ax', '.zipz']:

            fname = '27cd5cce30c96924232dffcd24178a07ffeb5dfc%s' % arch_ext

                                        action='archivefile',

                                        repo_name=HG_REPO,

                                        fname=fname))

            response.mustcontain('Unknown archive type')

    def test_archival_wrong_revision(self):