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# -*- coding: utf-8 -*-
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"""
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rhodecode.controllers.changelog
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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changelog controller for rhodecode
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:created_on: Apr 21, 2010
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:author: marcink
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:copyright: (C) 2009-2011 Marcin Kuzminski <marcin@python-works.com>
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:license: GPLv3, see COPYING for more details.
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"""
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; version 2
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# of the License or (at your opinion) any later version of the license.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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# MA 02110-1301, USA.
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import logging
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try:
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import json
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except ImportError:
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#python 2.5 compatibility
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import simplejson as json
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from mercurial.graphmod import colored, CHANGESET, revisions as graph_rev
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from pylons import request, session, tmpl_context as c
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from rhodecode.lib.auth import LoginRequired, HasRepoPermissionAnyDecorator
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from rhodecode.lib.base import BaseRepoController, render
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from rhodecode.lib.helpers import RepoPage
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log = logging.getLogger(__name__)
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class ChangelogController(BaseRepoController):
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@LoginRequired()
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@HasRepoPermissionAnyDecorator('repository.read', 'repository.write',
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'repository.admin')
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def __before__(self):
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super(ChangelogController, self).__before__()
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def index(self):
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limit = 100
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default = 20
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if request.params.get('size'):
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try:
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int_size = int(request.params.get('size'))
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except ValueError:
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int_size = default
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int_size = int_size if int_size <= limit else limit
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c.size = int_size
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session['changelog_size'] = c.size
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session.save()
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else:
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c.size = int(session.get('changelog_size', default))
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p = int(request.params.get('page', 1))
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c.total_cs = len(c.rhodecode_repo)
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c.pagination = RepoPage(c.rhodecode_repo, page=p, item_count=c.total_cs,
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items_per_page=c.size)
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self._graph(c.rhodecode_repo, c.size, p)
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return render('changelog/changelog.html')
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def _graph(self, repo, size, p):
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"""
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Generates a DAG graph for mercurial
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:param repo: repo instance
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:param size: number of commits to show
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:param p: page number
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"""
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if not repo.revisions or repo.alias == 'git':
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c.jsdata = json.dumps([])
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return
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revcount = min(repo.size, size)
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offset = 1 if p == 1 else ((p - 1) * revcount + 1)
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rev_start = repo.revisions.index(repo.revisions[(-1 * offset)])
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rev_end = max(0, rev_start - revcount)
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dag = graph_rev(repo._repo, rev_start, rev_end)
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c.dag = tree = list(colored(dag))
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data = []
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for (id, type, ctx, vtx, edges) in tree:
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if type != CHANGESET:
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continue
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data.append(('', vtx, edges))
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c.jsdata = json.dumps(data)
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