max_rev = len(c.repo.revisions) - 1

            r = cur + 1

            if r > max_rev:

                r = max_rev

            return r

        def get_prev_rev(cur):

            r = cur - 1

            return r

        c.f_path = f_path

        try:

            cur_rev = repo.get_changeset(revision).revision

            prev_rev = repo.get_changeset(get_prev_rev(cur_rev)).raw_id

            next_rev = repo.get_changeset(get_next_rev(cur_rev)).raw_id

            c.url_prev = url('files_home', repo_name=c.repo_name,

                             revision=prev_rev, f_path=f_path) 

            c.url_next = url('files_home', repo_name=c.repo_name,

                             revision=next_rev, f_path=f_path)   

            c.changeset = repo.get_changeset(revision)

            c.cur_rev = c.changeset.raw_id

            c.rev_nr = c.changeset.revision

            c.files_list = c.changeset.get_node(f_path)

            c.file_history = self._get_history(repo, c.files_list, f_path)

        except (RepositoryError, ChangesetError):

            c.files_list = None

        return render('files/files.html')

    def rawfile(self, repo_name, revision, f_path):

        hg_model = HgModel()

        c.repo = hg_model.get_repo(c.repo_name)

        file_node = c.repo.get_changeset(revision).get_node(f_path)

        response.content_type = file_node.mimetype

        response.content_disposition = 'attachment; filename=%s' \

                                                    % f_path.split('/')[-1] 

        return file_node.content

    def annotate(self, repo_name, revision, f_path):

        hg_model = HgModel()

        c.repo = hg_model.get_repo(c.repo_name)

        cs = c.repo.get_changeset(revision)

<dl class="overview">

	<dt>${_('Revision')}</dt>

	<dd>r${c.files_list.last_changeset.revision}:${c.files_list.last_changeset._short}</dd>

	<dt>${_('Size')}</dt>

	<dd>${h.format_byte_size(c.files_list.size,binary=True)}</dd>

	<dt>${_('Options')}</dt>

	<dd>${h.link_to(_('annotate'),

	h.url('files_annotate_home',repo_name=c.repo_name,revision=c.cur_rev,f_path=c.f_path))}  / ${h.link_to(_('raw'),

	h.url('files_raw_home',repo_name=c.repo_name,revision=c.cur_rev,f_path=c.f_path))}</dd>

	<dt>${_('History')}</dt>

	<dd>

		${h.form(h.url('files_diff_home',repo_name=c.repo_name,f_path=c.f_path),method='GET')}

		${h.hidden('diff2',c.files_list.last_changeset._short)}

		${h.select('diff1','',c.file_history)}

		${h.submit('diff','diff')}

		${h.end_form()}

	</dd>

</dl>		

<div id="body" class="codeblock">

	<div class="code-header">

		<div class="revision">${c.files_list.name}@r${c.files_list.last_changeset.revision}:${c.files_list.last_changeset._short}</div>

	</div>

	<div class="code-body">

		${h.pygmentize(c.files_list,linenos=True,anchorlinenos=True,lineanchors='S',cssclass="code-highlight")}

	</div>

</div>