List of contributors to RhodeCode project:

    Marcin Kuźmiński <marcin@python-works.com>

    Lukasz Balcerzak <lukaszbalcerzak@gmail.com>

    Jason Harris <jason@jasonfharris.com>

    Thayne Harbaugh  <thayne@fusionio.com>

    cejones

    Thomas Waldmann <tw-public@gmx.de>

    Lorenzo M. Catucci <lorenzo@sancho.ccd.uniroma2.it>

    Dmitri Kuznetsov

    Jared Bunting <jared.bunting@peachjean.com>

    Steve Romanow <slestak989@gmail.com>

    Augosto Hermann <augusto.herrmann@planejamento.gov.br>    

    Ankit Solanki <ankit.solanki@gmail.com>    

    Liad Shani <liadff@gmail.com>

    Les Peabody <lpeabody@gmail.com>

    Jonas Oberschweiber <jonas.oberschweiber@d-velop.de>

    Matt Zuba <matt.zuba@goodwillaz.org>

    Aras Pranckevicius <aras@unity3d.com>

    Tony Bussieres <t.bussieres@gmail.com>

    [app:main]

      use = egg:rhodecode

      full_stack = true

      static_files = false

      lang=en

      cache_dir = %(here)s/data

In order to not have the statics served by the application. This improves speed.

Apache virtual host reverse proxy example

-----------------------------------------

Here is a sample configuration file for apache using proxy::

    <VirtualHost *:80>

            ServerName hg.myserver.com

            ServerAlias hg.myserver.com

            <Proxy *>

              Order allow,deny

              Allow from all

            </Proxy>

            #important !

            #Directive to properly generate url (clone url) for pylons

            ProxyPreserveHost On

            #rhodecode instance

            ProxyPass / http://127.0.0.1:5000/

            ProxyPassReverse / http://127.0.0.1:5000/

            #to enable https use line below

            #SetEnvIf X-Url-Scheme https HTTPS=1

    </VirtualHost> 

Additional tutorial

http://wiki.pylonshq.com/display/pylonscookbook/Apache+as+a+reverse+proxy+for+Pylons

Apache as subdirectory

----------------------

Apache subdirectory part::

    <Location /<someprefix> >

      ProxyPass http://127.0.0.1:5000/<someprefix>

      ProxyPassReverse http://127.0.0.1:5000/<someprefix>

      SetEnvIf X-Url-Scheme https HTTPS=1

    </Location> 

Besides the regular apache setup you will need to add the following line

into [app:main] section of your .ini file::

    filter-with = proxy-prefix

Add the following at the end of the .ini file::

    [filter:proxy-prefix]

    use = egg:PasteDeploy#prefix

    prefix = /<someprefix> 

then change <someprefix> into your choosen prefix

Apache's WSGI config

--------------------

Alternatively, RhodeCode can be set up with Apache under mod_wsgi. For

that, you'll need to:

- Install mod_wsgi. If using a Debian-based distro, you can install

  the package libapache2-mod-wsgi::

    aptitude install libapache2-mod-wsgi

- Enable mod_wsgi::

    a2enmod wsgi

- Create a wsgi dispatch script, like the one below. Make sure you

  check the paths correctly point to where you installed RhodeCode

  and its Python Virtual Environment.

- Enable the WSGIScriptAlias directive for the wsgi dispatch script,

  as in the following example. Once again, check the paths are

  correctly specified.

Here is a sample excerpt from an Apache Virtual Host configuration file::

    WSGIDaemonProcess pylons user=www-data group=www-data processes=1 \

        threads=4 \

        python-path=/home/web/rhodecode/pyenv/lib/python2.6/site-packages

    WSGIScriptAlias / /home/web/rhodecode/dispatch.wsgi

Example wsgi dispatch script::

    import os

    os.environ["HGENCODING"] = "UTF-8"

    os.environ['PYTHON_EGG_CACHE'] = '/home/web/rhodecode/.egg-cache'

    # sometimes it's needed to set the curent dir

    os.chdir('/home/web/rhodecode/') 

    import site

    site.addsitedir("/home/web/rhodecode/pyenv/lib/python2.6/site-packages")

    from paste.deploy import loadapp

    from paste.script.util.logging_config import fileConfig

    fileConfig('/home/web/rhodecode/production.ini')

    application = loadapp('config:/home/web/rhodecode/production.ini')

Note: when using mod_wsgi you'll need to install the same version of

Mercurial that's inside RhodeCode's virtualenv also on the system's Python

environment.

Other configuration files

-------------------------

Some example init.d scripts can be found here, for debian and gentoo:

https://rhodecode.org/rhodecode/files/tip/init.d

Troubleshooting

---------------

:Q: **Missing static files?**

:A: Make sure either to set the `static_files = true` in the .ini file or

   double check the root path for your http setup. It should point to 

   for example:

   /home/my-virtual-python/lib/python2.6/site-packages/rhodecode/public

| 

:Q: **Can't install celery/rabbitmq**

:A: Don't worry RhodeCode works without them too. No extra setup is required.

|

:Q: **Long lasting push timeouts?**

:A: Make sure you set a longer timeouts in your proxy/fcgi settings, timeouts

    are caused by https server and not RhodeCode.

| 

:Q: **Large pushes timeouts?**

:A: Make sure you set a proper max_body_size for the http server.

|

:Q: **Apache doesn't pass basicAuth on pull/push?**

:A: Make sure you added `WSGIPassAuthorization true`.

For further questions search the `Issues tracker`_, or post a message in the 

`google group rhodecode`_

.. _virtualenv: http://pypi.python.org/pypi/virtualenv

.. _python: http://www.python.org/

.. _mercurial: http://mercurial.selenic.com/

.. _celery: http://celeryproject.org/

.. _rabbitmq: http://www.rabbitmq.com/

.. _python-ldap: http://www.python-ldap.org/

.. _mercurial-server: http://www.lshift.net/mercurial-server.html

.. _PublishingRepositories: http://mercurial.selenic.com/wiki/PublishingRepositories

.. _Issues tracker: https://bitbucket.org/marcinkuzminski/rhodecode/issues

.. _google group rhodecode: http://groups.google.com/group/rhodecode

Pylons==1.0.0

WebHelpers>=1.2

formencode==1.2.4

SQLAlchemy==0.7.4

Mako==0.5.0

pygments>=1.4

whoosh>=2.3.0,<2.4

celery>=2.2.5,<2.3

babel

python-dateutil>=1.5.0,<2.0.0

dulwich>=0.8.0,<0.9.0

webob==1.0.8

markdown==2.1.1

docutils==0.8.1

py-bcrypt

mercurial>=2.1,<2.2

# -*- coding: utf-8 -*-

"""

    rhodecode.__init__

    ~~~~~~~~~~~~~~~~~~

    RhodeCode, a web based repository management based on pylons

    versioning implementation: http://semver.org/

    :created_on: Apr 9, 2010

    :author: marcink

    :copyright: (C) 2010-2012 Marcin Kuzminski <marcin@python-works.com>

    :license: GPLv3, see COPYING for more details.

"""

# This program is free software: you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation, either version 3 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program.  If not, see <http://www.gnu.org/licenses/>.

import sys

import platform

VERSION = (1, 3, 2)

__version__ = '.'.join((str(each) for each in VERSION[:4]))

__dbversion__ = 5  # defines current db version for migrations

__platform__ = platform.system()

__license__ = 'GPLv3'

__py_version__ = sys.version_info

PLATFORM_WIN = ('Windows')

PLATFORM_OTHERS = ('Linux', 'Darwin', 'FreeBSD', 'OpenBSD', 'SunOS')

requirements = [

    "Pylons==1.0.0",

    "WebHelpers>=1.2",

    "formencode==1.2.4",

    "SQLAlchemy==0.7.4",

    "Mako==0.5.0",

    "pygments>=1.4",

    "whoosh>=2.3.0,<2.4",

    "celery>=2.2.5,<2.3",

    "babel",

    "python-dateutil>=1.5.0,<2.0.0",

    "dulwich>=0.8.0,<0.9.0",

    "webob==1.0.8",

    "markdown==2.1.1",

    "docutils==0.8.1",

]

if __py_version__ < (2, 6):

    requirements.append("simplejson")

    requirements.append("pysqlite")

if __platform__ in PLATFORM_WIN:

    requirements.append("mercurial>=2.1,<2.2")

else:

    requirements.append("py-bcrypt")

    requirements.append("mercurial>=2.1,<2.2")

try:

    from rhodecode.lib import get_current_revision

    _rev = get_current_revision(quiet=True)

except ImportError:

    # this is needed when doing some setup.py operations

    _rev = False

if len(VERSION) > 3 and _rev:

    __version__ += ' [rev:%s]' % _rev[0]

def get_version():

    """Returns shorter version (digit parts only) as string."""

    return '.'.join((str(each) for each in VERSION[:3]))

BACKENDS = {

    'hg': 'Mercurial repository',

    'git': 'Git repository',

}

CELERY_ON = False

# link to config for pylons

CONFIG = {}

                    self.sa.rollback()

            except formencode.Invalid, errors:

                return htmlfill.render(

                     render('admin/settings/settings.html'),

                     defaults=errors.value,

                     errors=errors.error_dict or {},

                     prefix_error=False,

                     encoding="UTF-8")

        if setting_id == 'mercurial':

            application_form = ApplicationUiSettingsForm()()

            try:

                form_result = application_form.to_python(dict(request.POST))

                try:

                    hgsettings1 = self.sa.query(RhodeCodeUi)\

                    .filter(RhodeCodeUi.ui_key == 'push_ssl').one()

                    hgsettings1.ui_value = form_result['web_push_ssl']

                    hgsettings2 = self.sa.query(RhodeCodeUi)\

                    .filter(RhodeCodeUi.ui_key == '/').one()

                    hgsettings2.ui_value = form_result['paths_root_path']

                    #HOOKS

                    hgsettings3 = self.sa.query(RhodeCodeUi)\

                    .filter(RhodeCodeUi.ui_key == 'changegroup.update').one()

                    hgsettings3.ui_active = \

                        bool(form_result['hooks_changegroup_update'])

                    hgsettings4 = self.sa.query(RhodeCodeUi)\

                    .filter(RhodeCodeUi.ui_key ==

                            'changegroup.repo_size').one()

                    hgsettings4.ui_active = \

                        bool(form_result['hooks_changegroup_repo_size'])

                    hgsettings5 = self.sa.query(RhodeCodeUi)\

                    .filter(RhodeCodeUi.ui_key ==

                            'pretxnchangegroup.push_logger').one()

                    hgsettings5.ui_active = \

                        bool(form_result['hooks_pretxnchangegroup'

                                         '_push_logger'])

                    hgsettings6 = self.sa.query(RhodeCodeUi)\

                    .filter(RhodeCodeUi.ui_key ==

                            'preoutgoing.pull_logger').one()

                    hgsettings6.ui_active = \

                        bool(form_result['hooks_preoutgoing_pull_logger'])

                    self.sa.add(hgsettings1)

                    self.sa.add(hgsettings2)

                    self.sa.add(hgsettings3)

                    self.sa.add(hgsettings4)

                    self.sa.add(hgsettings5)

                    self.sa.add(hgsettings6)

                    self.sa.commit()

                    h.flash(_('Updated mercurial settings'),

                            category='success')

                except:

                    log.error(traceback.format_exc())

                    h.flash(_('error occurred during updating '

                              'application settings'), category='error')

                    self.sa.rollback()

            except formencode.Invalid, errors:

                return htmlfill.render(

                     render('admin/settings/settings.html'),

                     defaults=errors.value,

                     errors=errors.error_dict or {},

                     prefix_error=False,

                     encoding="UTF-8")

        if setting_id == 'hooks':

            ui_key = request.POST.get('new_hook_ui_key')

            ui_value = request.POST.get('new_hook_ui_value')

            try:

                if ui_value and ui_key:

                    RhodeCodeUi.create_or_update_hook(ui_key, ui_value)

                    h.flash(_('Added new hook'),

                            category='success')

                # check for edits

                update = False

                _d = request.POST.dict_of_lists()

                for k, v in zip(_d.get('hook_ui_key', []),

                                _d.get('hook_ui_value_new', [])):

                    RhodeCodeUi.create_or_update_hook(k, v)

                    update = True

                if update:

                    h.flash(_('Updated hooks'), category='success')

            except:

                log.error(traceback.format_exc())

                h.flash(_('error occurred during hook creation'),

                        category='error')

            return redirect(url('admin_edit_setting', setting_id='hooks'))

        if setting_id == 'email':

            test_email = request.POST.get('test_email')

            test_email_subj = 'RhodeCode TestEmail'

            test_email_body = 'RhodeCode Email test'

            test_email_html_body = EmailNotificationModel()\

                .get_email_tmpl(EmailNotificationModel.TYPE_DEFAULT,

                                body=test_email_body)

            recipients = [test_email] if [test_email] else None

            run_task(tasks.send_email, recipients, test_email_subj,

                     test_email_body, test_email_html_body)

            h.flash(_('Email task created'), category='success')

        return redirect(url('admin_settings'))

    @HasPermissionAllDecorator('hg.admin')

    def delete(self, setting_id):

        """DELETE /admin/settings/setting_id: Delete an existing item"""

        # Forms posted to this method should contain a hidden field:

        #    <input type="hidden" name="_method" value="DELETE" />

        # Or using helpers:

        #    h.form(url('admin_setting', setting_id=ID),

        #           method='delete')

        # url('admin_setting', setting_id=ID)

        if setting_id == 'hooks':

            hook_id = request.POST.get('hook_id')

            RhodeCodeUi.delete(hook_id)

    @HasPermissionAllDecorator('hg.admin')

    def show(self, setting_id, format='html'):

        """

        GET /admin/settings/setting_id: Show a specific item"""

        # url('admin_setting', setting_id=ID)

    @HasPermissionAllDecorator('hg.admin')

    def edit(self, setting_id, format='html'):

        """

        GET /admin/settings/setting_id/edit: Form to

        edit an existing item"""

        # url('admin_edit_setting', setting_id=ID)

        c.hooks = RhodeCodeUi.get_builtin_hooks()

        c.custom_hooks = RhodeCodeUi.get_custom_hooks()

        return htmlfill.render(

            render('admin/settings/hooks.html'),

            defaults={},

            encoding="UTF-8",

            force_defaults=False

        )

    @NotAnonymous()

    def my_account(self):

        """

        GET /_admin/my_account Displays info about my account

        """

        # url('admin_settings_my_account')

        c.user = User.get(self.rhodecode_user.user_id)

        all_repos = self.sa.query(Repository)\

                     .filter(Repository.user_id == c.user.user_id)\

                     .order_by(func.lower(Repository.repo_name)).all()

        c.user_repos = ScmModel().get_repos(all_repos)

        if c.user.username == 'default':

            h.flash(_("You can't edit this user since it's"

              " crucial for entire application"), category='warning')

            return redirect(url('users'))

        defaults = c.user.get_dict()

        return htmlfill.render(

            render('admin/users/user_edit_my_account.html'),

            defaults=defaults,

            encoding="UTF-8",

            force_defaults=False

        )

    def my_account_update(self):

        """PUT /_admin/my_account_update: Update an existing item"""

        # Forms posted to this method should contain a hidden field:

        #    <input type="hidden" name="_method" value="PUT" />

        # Or using helpers:

        #    h.form(url('admin_settings_my_account_update'),

        #           method='put')

        # url('admin_settings_my_account_update', id=ID)

        user_model = UserModel()

        uid = self.rhodecode_user.user_id

        _form = UserForm(edit=True,

                         old_data={'user_id': uid,

                                   'email': self.rhodecode_user.email})()

        form_result = {}

        try:

            form_result = _form.to_python(dict(request.POST))

            user_model.update_my_account(uid, form_result)

            h.flash(_('Your account was updated successfully'),

                    category='success')

            Session.commit()

        except formencode.Invalid, errors:

            c.user = User.get(self.rhodecode_user.user_id)

            all_repos = self.sa.query(Repository)\

                .filter(Repository.user_id == c.user.user_id)\

                .order_by(func.lower(Repository.repo_name))\

                .all()

            c.user_repos = ScmModel().get_repos(all_repos)

            return htmlfill.render(

                render('admin/users/user_edit_my_account.html'),

                defaults=errors.value,

                errors=errors.error_dict or {},

                prefix_error=False,

                encoding="UTF-8")

        except Exception:

            log.error(traceback.format_exc())

            h.flash(_('error occurred during update of user %s') \

                    % form_result.get('username'), category='error')

        return redirect(url('my_account'))

    @NotAnonymous()

    @HasPermissionAnyDecorator('hg.admin', 'hg.create.repository')

    def create_repository(self):

        """GET /_admin/create_repository: Form to create a new item"""

        if ln_ctx > 0:

            params['context'] += [ln_ctx]

        if ig_ws:

            ig_ws_key = 'ignorews'

            ig_ws_val = 1

    # per file option

    else:

        params[fileid] += ['C:%s' % ln_ctx]

        ig_ws_key = fileid

        ig_ws_val = 'WS:%s' % 1

    if ig_ws:

        params[ig_ws_key] += [ig_ws_val]

    lbl = _('%s line context') % ln_ctx

    params['anchor'] = fileid

    img = h.image(h.url('/images/icons/table_add.png'), lbl, class_='icon')

    return h.link_to(img, h.url.current(**params), title=lbl, class_='tooltip')

class ChangesetController(BaseRepoController):

    @LoginRequired()

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

                                   'repository.admin')

    def __before__(self):

        super(ChangesetController, self).__before__()

        c.affected_files_cut_off = 60

    def index(self, revision):

        c.anchor_url = anchor_url

        c.ignorews_url = _ignorews_url

        c.context_url = _context_url

        #get ranges of revisions if preset

        rev_range = revision.split('...')[:2]

        enable_comments = True

        try:

            if len(rev_range) == 2:

                enable_comments = False

                rev_start = rev_range[0]

                rev_end = rev_range[1]

                rev_ranges = c.rhodecode_repo.get_changesets(start=rev_start,

                                                            end=rev_end)

            else:

                rev_ranges = [c.rhodecode_repo.get_changeset(revision)]

            c.cs_ranges = list(rev_ranges)

            if not c.cs_ranges:

                raise RepositoryError('Changeset range returned empty result')

        except (RepositoryError, ChangesetDoesNotExistError, Exception), e:

            log.error(traceback.format_exc())

            h.flash(str(e), category='warning')

            return redirect(url('home'))

        c.changes = OrderedDict()

        c.lines_added = 0  # count of lines added

        c.lines_deleted = 0  # count of lines removes

        cumulative_diff = 0

        c.cut_off = False  # defines if cut off limit is reached

        c.comments = []

        c.inline_comments = []

        c.inline_cnt = 0

        # Iterate over ranges (default changeset view is always one changeset)

        for changeset in c.cs_ranges:

            c.comments.extend(ChangesetCommentsModel()\

                              .get_comments(c.rhodecode_db_repo.repo_id,

                                            changeset.raw_id))

            inlines = ChangesetCommentsModel()\

                        .get_inline_comments(c.rhodecode_db_repo.repo_id,

                                             changeset.raw_id)

            c.inline_comments.extend(inlines)

            c.changes[changeset.raw_id] = []

            try:

                changeset_parent = changeset.parents[0]

            except IndexError:

                changeset_parent = None

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

            # ADDED FILES

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

            for node in changeset.added:

                fid = h.FID(revision, node.path)

                line_context_lcl = get_line_ctx(fid, request.GET)

                ign_whitespace_lcl = get_ignore_ws(fid, request.GET)

                lim = self.cut_off_limit

                if cumulative_diff > self.cut_off_limit:

                    lim = -1

                                         filenode_new=node,

                                         cut_off_limit=lim,

                                         ignore_whitespace=ign_whitespace_lcl,

                                         line_context=line_context_lcl,

                cumulative_diff += size

                c.lines_added += st[0]

                c.lines_deleted += st[1]

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

            # CHANGED FILES

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

            for node in changeset.changed:

                try:

                    filenode_old = changeset_parent.get_node(node.path)

                except ChangesetError:

                    log.warning('Unable to fetch parent node for diff')

                    filenode_old = FileNode(node.path, '', EmptyChangeset())

                fid = h.FID(revision, node.path)

                line_context_lcl = get_line_ctx(fid, request.GET)

                ign_whitespace_lcl = get_ignore_ws(fid, request.GET)

                lim = self.cut_off_limit

                if cumulative_diff > self.cut_off_limit:

                    lim = -1

                                         filenode_new=node,

                                         cut_off_limit=lim,

                                         ignore_whitespace=ign_whitespace_lcl,

                                         line_context=line_context_lcl,

                cumulative_diff += size

                c.lines_added += st[0]

                c.lines_deleted += st[1]

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

            # REMOVED FILES

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

            for node in changeset.removed:

        # count inline comments

        for path, lines in c.inline_comments:

            for comments in lines.values():

                c.inline_cnt += len(comments)

        if len(c.cs_ranges) == 1:

            c.changeset = c.cs_ranges[0]

            c.changes = c.changes[c.changeset.raw_id]

            return render('changeset/changeset.html')

        else:

            return render('changeset/changeset_range.html')

    def raw_changeset(self, revision):

        method = request.GET.get('diff', 'show')

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

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

        try:

            c.scm_type = c.rhodecode_repo.alias

            c.changeset = c.rhodecode_repo.get_changeset(revision)

        except RepositoryError:

            log.error(traceback.format_exc())

            return redirect(url('home'))

        else:

            try:

                c.changeset_parent = c.changeset.parents[0]

            except IndexError:

                c.changeset_parent = None

            c.changes = []

            for node in c.changeset.added:

                filenode_old = FileNode(node.path, '')

                if filenode_old.is_binary or node.is_binary:

                    diff = _('binary file') + '\n'

                else:

                    f_gitdiff = diffs.get_gitdiff(filenode_old, node,

                                           ignore_whitespace=ignore_whitespace,

                                           context=line_context)

                    diff = diffs.DiffProcessor(f_gitdiff,

                                                format='gitdiff').raw_diff()

                cs1 = None

                c.changes.append(('added', node, diff, cs1, cs2))

            for node in c.changeset.changed:

                filenode_old = c.changeset_parent.get_node(node.path)

                if filenode_old.is_binary or node.is_binary:

                    diff = _('binary file')

                else:

                    f_gitdiff = diffs.get_gitdiff(filenode_old, node,

                                           ignore_whitespace=ignore_whitespace,

                                           context=line_context)

                    diff = diffs.DiffProcessor(f_gitdiff,

                                                format='gitdiff').raw_diff()

                c.changes.append(('changed', node, diff, cs1, cs2))

        response.content_type = 'text/plain'

        if method == 'download':

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

                                            % revision

        c.diffs = ''

        for x in c.changes:

            c.diffs += x[2]

        return render('changeset/raw_changeset.html')

    def comment(self, repo_name, revision):

        ChangesetCommentsModel().create(text=request.POST.get('text'),

                                        repo_id=c.rhodecode_db_repo.repo_id,

                                        user_id=c.rhodecode_user.user_id,

                                        revision=revision,

                                        f_path=request.POST.get('f_path'),

                                        line_no=request.POST.get('line'))

        Session.commit()

        return redirect(h.url('changeset_home', repo_name=repo_name,

                              revision=revision))

    @jsonify

    def delete_comment(self, repo_name, comment_id):

        co = ChangesetComment.get(comment_id)

        owner = lambda: co.author.user_id == c.rhodecode_user.user_id

        if h.HasPermissionAny('hg.admin', 'repository.admin')() or owner:

            ChangesetCommentsModel().delete(comment=co)

            Session.commit()

            return True

        else:

            raise HTTPForbidden()

    def archivefile(self, repo_name, fname):

        fileformat = None

        revision = None

        ext = None

        subrepos = request.GET.get('subrepos') == 'true'

        for a_type, ext_data in settings.ARCHIVE_SPECS.items():

            archive_spec = fname.split(ext_data[1])

            if len(archive_spec) == 2 and archive_spec[1] == '':

                fileformat = a_type or ext_data[1]

                revision = archive_spec[0]

                ext = ext_data[1]

        try:

            dbrepo = RepoModel().get_by_repo_name(repo_name)

            if dbrepo.enable_downloads is False:

                return _('downloads disabled')

            if c.rhodecode_repo.alias == 'hg':

                # patch and reset hooks section of UI config to not run any

                # hooks on fetching archives with subrepos

                for k, v in c.rhodecode_repo._repo.ui.configitems('hooks'):

                    c.rhodecode_repo._repo.ui.setconfig('hooks', k, None)

            cs = c.rhodecode_repo.get_changeset(revision)

            content_type = settings.ARCHIVE_SPECS[fileformat][0]

        except ChangesetDoesNotExistError:

            return _('Unknown revision %s') % revision

        except EmptyRepositoryError:

            return _('Empty repository')

        except (ImproperArchiveTypeError, KeyError):

            return _('Unknown archive type')