~azzar1/unity/add-show-desktop-key

# IVLE - Informatics Virtual Learning Environment

# Copyright (C) 2007-2009 The University of Melbourne

#

# 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 2 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, write to the Free Software

# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

# Author: William Grant

import os

import cjson

import pysvn

import ivle.date

import ivle.interpret

from ivle.webapp.base.xhtml import XHTMLView

from ivle.webapp.base.plugins import ViewPlugin, MediaPlugin

from ivle.webapp.errors import NotFound, BadRequest

from ivle.webapp.filesystem import make_path_breadcrumbs

from ivle.webapp import ApplicationRoot

class SubversionLogView(XHTMLView):

    template = 'template.html'

    tab = 'files'

    breadcrumb_text = 'Files'

    subpath_allowed = True

    def authorize(self, req):

        return req.user is not None

    def populate(self, req, ctx):

        self.plugin_styles[Plugin] = ['log.css']

        self.plugin_scripts = {

                'ivle.webapp.filesystem.browser': ['browser.js'],

                Plugin: ['log.js'],

                }

        self.scripts_init = ['log_init']

        svnlogservice_path = os.path.join(req.config['paths']['share'],

                                          'services/svnlogservice')

        user_jail_dir = os.path.join(req.config['paths']['jails']['mounts'],

                                     req.user.login)

        (out, err) = ivle.interpret.execute_raw(req.config,

                                                req.user,

                                                user_jail_dir,

                                                '/home',

                                                svnlogservice_path,

                                                [self.path]

                                                )

        assert not err

        response = cjson.decode(out)

        if 'error' in response:

            if response['error'] == 'notfound':

                raise NotFound()

            else:

                raise AssertionError('Unknown error from svnlogservice: %s' %

                                     response['error'])

        # No error. We must be safe.

        ctx['format_datetime'] = ivle.date.make_date_nice

        ctx['format_datetime_short'] = ivle.date.format_datetime_for_paragraph

        ctx['path'] = self.path

        ctx['url'] = req.make_path(os.path.join('svnlog', self.path))

        ctx['diffurl'] = req.make_path(os.path.join('diff', self.path))

        ctx['title'] = os.path.normpath(self.path).rsplit('/', 1)[-1]

        self.extra_breadcrumbs = make_path_breadcrumbs(req, self.subpath)

        self.extra_breadcrumbs.append(SubversionLogBreadcrumb())

        sr = ivle.svn.revision_from_string(

                   req.get_fieldstorage().getfirst("r"))

        ctx['revno'] = sr.number if sr and \

                       sr.kind == pysvn.opt_revision_kind.number else None

        ctx['logs'] = response['logs']

        # Create URLs for each of the versioned files.

        # XXX: This scheme only works for stuff/!

        for log in ctx['logs']:

            for pathaction in log['paths']:

                pathaction.append(req.make_path(os.path.join('files',

                                  ivle.util.split_path(req.path)[0],

                                  pathaction[0][1:])) + '?r=%d' % log['revno'])

    @property

    def path(self):

        return os.path.join(*self.subpath) if self.subpath else ''

class SubversionLogBreadcrumb(object):

    text = 'Subversion Log'

class Plugin(ViewPlugin, MediaPlugin):

    views = [(ApplicationRoot, 'svnlog', SubversionLogView)]

    media = 'media'