branch = None

            if branch:

                log.error('branch %r not found in %s', branch, repo)

        bookmarks = []

        for bookmark, bookmarkrev in repo.bookmarks.iteritems():

            n = 'book:%s:%s' % (bookmark, bookmarkrev)

            bookmarks.append((n, bookmark))

            if rev == bookmarkrev:

                selected = n

        tags = []

        for tag, tagrev in repo.tags.iteritems():

            if tag == 'tip':

                continue

            n = 'tag:%s:%s' % (tag, tagrev)

            tags.append((n, tag))

            if rev == tagrev:

                selected = n

        # prio 1: rev was selected as existing entry above

        # prio 2: create special entry for rev; rev _must_ be used

        specials = []

        if rev and selected is None:

            selected = 'rev:%s:%s' % (rev, rev)

            specials = [(selected, '%s: %s' % (_("Changeset"), rev[:12]))]

        # prio 3: most recent peer branch

        if peers and not selected:

            selected = peers[0][0][0]

        # prio 4: tip revision

        if not selected:

            if h.is_hg(repo):

                if tipbranch:

                    selected = 'branch:%s:%s' % (tipbranch, tiprev)

                else:

                    selected = 'tag:null:0'

                    tags.append((selected, 'null'))

            else:

                if 'master' in repo.branches:

                    selected = 'branch:master:%s' % repo.branches['master']

                else:

                    k, v = repo.branches.items()[0]

                    selected = 'branch:%s:%s' % (k, v)

        groups = [(specials, _("Special")),

                  (peers, _("Peer branches")),

                  (bookmarks, _("Bookmarks")),

                  (branches, _("Branches")),

                  (tags, _("Tags")),

                  ]

        return [g for g in groups if g[0]], selected

    def _get_is_allowed_change_status(self, pull_request):

        owner = self.authuser.user_id == pull_request.user_id

        reviewer = self.authuser.user_id in [x.user_id for x in

                                                   pull_request.reviewers]

        return self.authuser.admin or owner or reviewer

    def _load_compare_data(self, pull_request, enable_comments=True):

        """

        Load context data needed for generating compare diff

        :param pull_request:

        """

        c.org_repo = pull_request.org_repo

        (c.org_ref_type,

         c.org_ref_name,

         c.org_rev) = pull_request.org_ref.split(':')

        c.other_repo = pull_request.other_repo

        (c.other_ref_type,

         c.other_ref_name,

         c.other_rev) = pull_request.other_ref.split(':') # other_rev is ancestor

        org_scm_instance = c.org_repo.scm_instance # property with expensive cache invalidation check!!!

        c.cs_repo = c.org_repo

        c.cs_ranges = [org_scm_instance.get_changeset(x) for x in pull_request.revisions]

        c.cs_ranges_org = None # not stored and not important and moving target - could be calculated ...

        revs = [ctx.revision for ctx in reversed(c.cs_ranges)]

        c.jsdata = json.dumps(graph_data(org_scm_instance, revs))

        c.available = []

        c.org_branch_name = c.org_ref_name

        other_scm_instance = c.other_repo.scm_instance

        if org_scm_instance.alias == 'hg' and c.other_ref_name != 'ancestor':

            if c.org_ref_type != 'branch':

                c.org_branch_name = org_scm_instance.get_changeset(c.org_ref_name).branch # use ref_type ?

            other_branch_name = c.other_ref_name

            if c.other_ref_type != 'branch':

                other_branch_name = other_scm_instance.get_changeset(c.other_ref_name).branch # use ref_type ?

            # candidates: descendants of old head that are on the right branch

            #             and not are the old head itself ...

            #             and nothing at all if old head is a descendent of target ref name

            else: # look for children of PR head on source branch in org repo

                arevs = org_scm_instance._repo.revs('%s:: & branch(%s) - %s',

                                                    revs[0], c.org_branch_name, revs[0])

                c.available = [org_scm_instance.get_changeset(x) for x in arevs]

        raw_ids = [x.raw_id for x in c.cs_ranges]

        c.cs_comments = c.org_repo.get_comments(raw_ids)

        c.statuses = c.org_repo.statuses(raw_ids)

        ignore_whitespace = request.GET.get('ignorews') == '1'

        line_context = request.GET.get('context', 3)

        c.ignorews_url = _ignorews_url

        c.context_url = _context_url

        c.fulldiff = request.GET.get('fulldiff')

        diff_limit = self.cut_off_limit if not c.fulldiff else None

        # we swap org/other ref since we run a simple diff on one repo

        log.debug('running diff between %s and %s in %s'

                  % (c.other_rev, c.org_rev, org_scm_instance.path))

        txtdiff = org_scm_instance.get_diff(rev1=safe_str(c.other_rev), rev2=safe_str(c.org_rev),

                                      ignore_whitespace=ignore_whitespace,

                                      context=line_context)

        diff_processor = diffs.DiffProcessor(txtdiff or '', format='gitdiff',

                                             diff_limit=diff_limit)

        _parsed = diff_processor.prepare()

        c.limited_diff = False

        if isinstance(_parsed, LimitedDiffContainer):

            c.limited_diff = True

        c.files = []

        c.changes = {}

        c.lines_added = 0

        c.lines_deleted = 0

        for f in _parsed:

            st = f['stats']

            c.lines_added += st['added']

            c.lines_deleted += st['deleted']

            fid = h.FID('', f['filename'])

            c.files.append([fid, f['operation'], f['filename'], f['stats']])

            htmldiff = diff_processor.as_html(enable_comments=enable_comments,

                                              parsed_lines=[f])

            c.changes[fid] = [f['operation'], f['filename'], htmldiff]

    @LoginRequired()

    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',

                                   'repository.admin')

    def show_all(self, repo_name):

        c.from_ = request.GET.get('from_') or ''

        c.closed = request.GET.get('closed') or ''

        c.pull_requests = PullRequestModel().get_all(repo_name, from_=c.from_, closed=c.closed)

        c.repo_name = repo_name

        p = safe_int(request.GET.get('page', 1), 1)

        c.pullrequests_pager = Page(c.pull_requests, page=p, items_per_page=10)

        c.pullrequest_data = render('/pullrequests/pullrequest_data.html')

        if request.environ.get('HTTP_X_PARTIAL_XHR'):

            return c.pullrequest_data

        return render('/pullrequests/pullrequest_show_all.html')

    @LoginRequired()

    def show_my(self): # my_account_my_pullrequests

        c.show_closed = request.GET.get('pr_show_closed')

        return render('/pullrequests/pullrequest_show_my.html')

    @NotAnonymous()

    def show_my_data(self):

        c.show_closed = request.GET.get('pr_show_closed')

        def _filter(pr):

            s = sorted(pr, key=lambda o: o.created_on, reverse=True)

            if not c.show_closed:

                s = filter(lambda p: p.status != PullRequest.STATUS_CLOSED, s)

            return s

        c.my_pull_requests = _filter(PullRequest.query()\

                                .filter(PullRequest.user_id ==

                                        self.authuser.user_id)\

                                .all())

        c.participate_in_pull_requests = _filter(PullRequest.query()\

                                .join(PullRequestReviewers)\

                                .filter(PullRequestReviewers.user_id ==

                                        self.authuser.user_id)\

                                                 )

        return render('/pullrequests/pullrequest_show_my_data.html')

    @LoginRequired()

    @NotAnonymous()

    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',

                                   'repository.admin')

    def index(self):

        org_repo = c.db_repo

    padding: 0px 0px 0px 8px;

}

.notification-list .container .notification-header .desc {

    font-weight: bold;

    font-size: 17px;

}

.notification-table {

    border: 1px solid #ccc;

    -webkit-border-radius: 6px 6px 6px 6px;

    border-radius: 6px 6px 6px 6px;

    clear: both;

    margin: 0px 20px 0px 20px;

}

.notification-header .delete-notifications {

    float: right;

    padding-top: 8px;

    cursor: pointer;

}

.notification-header .read-notifications {

    float: right;

    padding-top: 8px;

    cursor: pointer;

}

.notification-subject {

    clear: both;

    border-bottom: 1px solid #eee;

    padding: 5px 0px 5px 38px;

}

.notification-body {

    clear: both;

    margin: 34px 2px 2px 8px

}

/****

PULL REQUESTS

*****/

.pullrequests_section_head {

    padding: 10px 10px 10px 0px;

    font-size: 16px;

    font-weight: bold;

}

div.pr-details-title.closed,

#pullrequests_container li.closed div div

 {

    color: #555;

    background: #eee;

}

div.pr-title {

    font-size: 1.6em;

}

div.pr-details-title {

    font-size: 1.6em;

    padding: 5px 0px 5px 10px;

}

div.pr {

    margin: 0px 20px;

    padding: 4px 4px;

}

div.pr-desc {

    margin: 0px 20px;

}

div.pr-closed {

    background-color: #eee;

}

span.pr-closed-tag {

    margin-bottom: 1px;

    margin-right: 1px;

    padding: 1px 3px;

    font-size: 10px;

    padding: 1px 3px 1px 3px;

    font-size: 10px;

    color: #577632;

    white-space: nowrap;

    -webkit-border-radius: 4px;

    border-radius: 4px;

    border: 1px solid #d9e8f8;

    line-height: 1.5em;

}

.pr-box {

    max-width: 978px;

}

#s2id_org_ref,

#s2id_other_ref,

#s2id_org_repo,

#s2id_other_repo {

    min-width: 150px;

    margin: 5px;

}

/****

  PERMS

*****/

#perms .perms_section_head {

    padding: 10px 10px 10px 0px;

    font-size: 16px;

    font-weight: bold;

}

#perms .perm_tag {

    padding: 1px 3px 1px 3px;

    font-size: 10px;

    font-weight: bold;

    text-transform: uppercase;

    white-space: nowrap;

    -webkit-border-radius: 3px;

    border-radius: 3px;

}

#perms .perm_tag.admin {

    background-color: #B94A48;

    color: #ffffff;

}

#perms .perm_tag.write {

    background-color: #DB7525;

    color: #ffffff;

}

#perms .perm_tag.read {

    background-color: #468847;

    color: #ffffff;

}

#perms .perm_tag.none {

    background-color: #bfbfbf;

    color: #ffffff;

}

.perm-gravatar {

    vertical-align: middle;

    padding: 2px;

}

.perm-gravatar-ac {

    vertical-align: middle;

    padding: 2px;

    width: 14px;

    height: 14px;

}

/*****************************************************************************

                                  DIFFS CSS

******************************************************************************/

.diff-collapse {

    text-align: center;

    margin-bottom: -15px;

}

.diff-collapse-button {

    cursor: pointer;

    color: #666;

    font-size: 16px;

}

.diff-container {

}

.diff-container.hidden {

    display: none;

    overflow: hidden;

}

div.diffblock {

    overflow: auto;

    padding: 0px;

    border: 1px solid #ccc;

    background: #f8f8f8;

    font-size: 100%;

    line-height: 100%;

    /* new */

    line-height: 125%;

    -webkit-border-radius: 6px 6px 0px 0px;

    border-radius: 6px 6px 0px 0px;

}

div.diffblock.margined {

    margin: 0px 20px 0px 20px;

    overflow: hidden;

}

div.diffblock .code-header {

    border-bottom: 1px solid #CCCCCC;

    background: #EEEEEE;

    padding: 10px 0 10px 0;

    min-height: 14px;

}

div.diffblock .code-header.banner {

            <div class="changeset-status-container" style="float:none;clear:both">

            %if c.current_voting_result:

              <div class="changeset-status-ico" style="padding:0px 4px 0px 0px">

                  <img src="${h.url('/images/icons/flag_status_%s.png' % c.current_voting_result)}" title="${_('Pull request status calculated from votes')}"/></div>

              <div class="changeset-status-lbl tooltip" title="${_('Pull request status calculated from votes')}">

                %if c.pull_request.is_closed():

                    ${_('Closed')},

                %endif

                ${h.changeset_status_lbl(c.current_voting_result)}

              </div>

            %endif

            </div>

          </div>

        </div>

        <div class="field">

          <div class="label-summary">

              <label>${_('Still not reviewed by')}:</label>

          </div>

          <div class="input">

            % if len(c.pull_request_pending_reviewers) > 0:

                <div class="tooltip" title="${h.tooltip(', '.join([x.username for x in c.pull_request_pending_reviewers]))}">${ungettext('%d reviewer', '%d reviewers',len(c.pull_request_pending_reviewers)) % len(c.pull_request_pending_reviewers)}</div>

            % elif len(c.pull_request_reviewers) > 0:

                <div>${_('Pull request was reviewed by all reviewers')}</div>

            %else:

                <div>${_('There are no reviewers')}</div>

            %endif

          </div>

        </div>

        <div class="field">

          <div class="label-summary">

              <label>${_('Origin')}:</label>

          </div>

          <div class="input">

            <div>

              ${h.link_to_ref(c.pull_request.org_repo.repo_name, c.org_ref_type, c.org_ref_name, c.org_rev)}

              %if c.org_ref_type != 'branch':

                ${_('on')} ${h.link_to_ref(c.pull_request.org_repo.repo_name, 'branch', c.org_branch_name)}

              %endif

            </div>

          </div>

        </div>

        <div class="field">

          <div class="label-summary">

              <label>${_('Target')}:</label>

          </div>

          <div class="input">

              <div>

              ${h.link_to_ref(c.pull_request.other_repo.repo_name, c.other_ref_type, c.other_ref_name)}

              ## we don't know other rev - c.other_rev is ancestor and not necessarily on other_name_branch branch

              </div>

          </div>

        </div>

        <div class="field">

          <div class="label-summary">

              <label>${_('Pull changes')}:</label>

          </div>

          <div class="input">

              <div>

               ## TODO: use cs_ranges[-1] or org_ref_parts[1] in both cases?

               %if h.is_hg(c.pull_request.org_repo):

                 <span style="font-family: monospace">hg pull ${c.pull_request.org_repo.clone_url()} -r ${h.short_id(c.cs_ranges[-1].raw_id)}</span>

               %elif h.is_git(c.pull_request.org_repo):

                 <span style="font-family: monospace">git pull ${c.pull_request.org_repo.clone_url()} ${c.pull_request.org_ref_parts[1]}</span>

               %endif

              </div>

          </div>

        </div>

        <div class="field">

          <div class="label-summary">

              <label>${_('Created on')}:</label>

          </div>

          <div class="input">

              <div>${h.fmt_date(c.pull_request.created_on)}</div>

          </div>

        </div>

        <div class="field">

          <div class="label-summary">

              <label>${_('Created by')}:</label>

          </div>

          <div class="input">

              <div class="author">

                  <div class="gravatar">

                      <img alt="gravatar" src="${h.gravatar_url(c.pull_request.author.email,20)}"/>

                  </div>

                  <span>${c.pull_request.author.username_and_name}</span><br/>

                  <span><a href="mailto:${c.pull_request.author.email}">${c.pull_request.author.email}</a></span><br/>

              </div>

          </div>

        </div>

        ${h.form(url('pullrequest_copy_update',repo_name=c.repo_name,pull_request_id=c.pull_request.pull_request_id), method='post')}

          <div class="field">

            <div class="label-summary">

              <label>${_('Update')}:</label>

            </div>

            %if c.available:

                <table class="noborder">

                  %for cnt, cs in enumerate(reversed(c.available)):

                    <tr>

                    <td>${h.radio(name='updaterev', value=cs.raw_id)}</td>

                    <td>${h.link_to(h.show_id(cs),h.url('changeset_home',repo_name=c.org_repo.repo_name,revision=cs.raw_id))}</td>

                    <td><div class="message" style="white-space:normal; height:1.1em; max-width: 500px; padding:0">${h.urlify_commit(cs.message, c.repo_name)}</div></td>

                    </tr>

                  %endfor

                </table>

              </div>

              <div class="buttons">

                ${h.submit('copy_update',_('Create pull request update'),class_="btn btn-small")}

              </div>

            %endif

          </div>

        ${h.end_form()}

      </div>

    </div>

    ## REVIEWERS

    <div style="float:left; border-left:1px dashed #eee">

       <div class="pr-details-title">${_('Pull request reviewers')}</div>

        <div id="reviewers" style="padding:0px 0px 5px 10px">

          ## members goes here !

          <div>

            <ul id="review_members" class="group_members">

            %for member,status in c.pull_request_reviewers:

              <li id="reviewer_${member.user_id}">

                <div class="reviewers_member">

                    <div class="reviewer_status tooltip" title="${h.tooltip(h.changeset_status_lbl(status.status if status else 'not_reviewed'))}">

                      <img src="${h.url(str('/images/icons/flag_status_%s.png' % (status.status if status else 'not_reviewed')))}"/>

                    </div>

                  <div class="reviewer_gravatar gravatar"><img alt="gravatar" src="${h.gravatar_url(member.email,14)}"/> </div>

                  <div style="float:left;">${member.full_name} (${_('owner') if c.pull_request.user_id == member.user_id else _('reviewer')})</div>

                  <input type="hidden" value="${member.user_id}" name="review_members" />

                  %if not c.pull_request.is_closed() and (h.HasPermissionAny('hg.admin')() or h.HasRepoPermissionAny('repository.admin')(c.repo_name) or c.pull_request.user_id == c.authuser.user_id):

                  <div class="reviewer_member_remove action_button" onclick="removeReviewMember(${member.user_id})" title="${_('Remove reviewer')}">

                      <i class="icon-remove-sign" style="color: #FF4444;"></i>

                  </div>

                  %endif

                </div>

              </li>

            %endfor

            </ul>

          </div>

          %if not c.pull_request.is_closed():

          <div class='ac'>

            %if h.HasPermissionAny('hg.admin')() or h.HasRepoPermissionAny('repository.admin')(c.repo_name) or c.pull_request.author.user_id == c.authuser.user_id:

            <div class="reviewer_ac">

               ${h.text('user', class_='yui-ac-input',placeholder=_('Type name of reviewer to add'))}

               <div id="reviewers_container"></div>

            </div>

            <div style="padding:0px 10px">

             <span id="update_pull_request" class="btn btn-mini">${_('Save Changes')}</span>

            </div>

            %endif

          </div>

          %endif

        </div>

       </div>

    <div style="overflow: auto; clear: both">

      ##DIFF

      <div class="table" style="float:left;clear:none">

          <div class="diffblock">

              <div style="padding:5px">

                ${_('Compare view')}

              </div>

          </div>

          <div id="changeset_compare_view_content">

              ##CS

              <div style="font-size:1.1em;font-weight: bold;clear:both;padding-top:10px">${ungettext('Showing %s commit','Showing %s commits', len(c.cs_ranges)) % len(c.cs_ranges)}</div>

              <%include file="/compare/compare_cs.html" />

              <div style="font-size:1.1em;font-weight: bold;clear:both;padding-top:10px">

              ${_('Common ancestor')}:

              ${h.link_to(h.short_id(c.other_rev),h.url('changeset_home',repo_name=c.other_repo.repo_name,revision=c.other_rev))}

              </div>

              ## FILES

              <div style="font-size:1.1em;font-weight: bold;clear:both;padding-top:10px">

              % if c.limited_diff:

                  ${ungettext('%s file changed', '%s files changed', len(c.files)) % len(c.files)}

              % else:

                  ${ungettext('%s file changed with %s insertions and %s deletions','%s files changed with %s insertions and %s deletions', len(c.files)) % (len(c.files),c.lines_added,c.lines_deleted)}:

              %endif

              </div>

              <div class="cs_files">

                %if not c.files:

                   <span class="empty_data">${_('No files')}</span>

                %endif

                %for fid, change, f, stat in c.files:

                    <div class="cs_${change}">

                      <div class="node">${h.link_to(h.safe_unicode(f),'#' + fid)}</div>

                      <div class="changes">${h.fancy_file_stats(stat)}</div>

                    </div>

                %endfor

              </div>

              <div class="comments-number pr-comments-number">${ungettext("%d comment", "%d comments", len(c.comments)) % len(c.comments)} ${ungettext("(%d inline)", "(%d inline)", c.inline_cnt) % c.inline_cnt} <span class="firstlink"></span> </div>

              % if c.limited_diff:

                <h5>${_('Changeset was too big and was cut off...')} <a href="${h.url.current(fulldiff=1, **request.GET.mixed())}">${_('Show full diff anyway')}</a></h5>

              % endif

          </div>

      </div>

    </div>

    <script>

    var _USERS_AC_DATA = ${c.users_array|n};