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# -*- coding: utf-8 -*-
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"""
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rhodecode.controllers.compare
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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compare controller for pylons showing differences between two
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repos, branches, bookmarks or tips
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:created_on: May 6, 2012
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:author: marcink
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:copyright: (C) 2010-2012 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 modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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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, see <http://www.gnu.org/licenses/>.
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import logging
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import traceback
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from webob.exc import HTTPNotFound
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from pylons import request, response, session, tmpl_context as c, url
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from pylons.controllers.util import abort, redirect
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from pylons.i18n.translation import _
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from rhodecode.lib.vcs.exceptions import EmptyRepositoryError, RepositoryError
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from rhodecode.lib import helpers as h
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from rhodecode.lib.base import BaseRepoController, render
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from rhodecode.lib.auth import LoginRequired, HasRepoPermissionAnyDecorator
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from rhodecode.lib import diffs
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from rhodecode.model.db import Repository
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from rhodecode.model.pull_request import PullRequestModel
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from webob.exc import HTTPBadRequest
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from rhodecode.lib.diffs import LimitedDiffContainer
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from rhodecode.lib.vcs.backends.base import EmptyChangeset
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log = logging.getLogger(__name__)
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class CompareController(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(CompareController, self).__before__()
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def __get_cs_or_redirect(self, rev, repo, redirect_after=True,
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partial=False):
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"""
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Safe way to get changeset if error occur it redirects to changeset with
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proper message. If partial is set then don't do redirect raise Exception
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instead
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:param rev: revision to fetch
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:param repo: repo instance
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"""
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try:
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type_, rev = rev
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return repo.scm_instance.get_changeset(rev)
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except EmptyRepositoryError, e:
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if not redirect_after:
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return None
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h.flash(h.literal(_('There are no changesets yet')),
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category='warning')
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redirect(url('summary_home', repo_name=repo.repo_name))
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except RepositoryError, e:
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log.error(traceback.format_exc())
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h.flash(str(e), category='warning')
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if not partial:
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redirect(h.url('summary_home', repo_name=repo.repo_name))
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raise HTTPBadRequest()
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def index(self, org_ref_type, org_ref, other_ref_type, other_ref):
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# org_ref will be evaluated in org_repo
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org_repo = c.rhodecode_db_repo.repo_name
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org_ref = (org_ref_type, org_ref)
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# other_ref will be evaluated in other_repo
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other_ref = (other_ref_type, other_ref)
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other_repo = request.GET.get('other_repo', org_repo)
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# fulldiff disables cut_off_limit
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c.fulldiff = request.GET.get('fulldiff')
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# only consider this range of changesets
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rev_start = request.GET.get('rev_start')
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rev_end = request.GET.get('rev_end')
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# partial uses compare_cs.html template directly
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partial = request.environ.get('HTTP_X_PARTIAL_XHR')
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# as_form puts hidden input field with changeset revisions
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c.as_form = partial and request.GET.get('as_form')
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# swap url for compare_diff page - never partial and never as_form
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c.swap_url = h.url('compare_url',
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repo_name=other_repo,
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org_ref_type=other_ref[0], org_ref=other_ref[1],
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other_repo=org_repo,
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other_ref_type=org_ref[0], other_ref=org_ref[1])
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org_repo = Repository.get_by_repo_name(org_repo)
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other_repo = Repository.get_by_repo_name(other_repo)
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self.__get_cs_or_redirect(rev=org_ref, repo=org_repo, partial=partial)
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self.__get_cs_or_redirect(rev=other_ref, repo=other_repo, partial=partial)
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if org_repo is None:
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log.error('Could not find org repo %s' % org_repo)
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raise HTTPNotFound
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if other_repo is None:
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log.error('Could not find other repo %s' % other_repo)
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raise HTTPNotFound
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if org_repo != other_repo and h.is_git(org_repo):
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log.error('compare of two remote repos not available for GIT REPOS')
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raise HTTPNotFound
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if org_repo.scm_instance.alias != other_repo.scm_instance.alias:
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log.error('compare of two different kind of remote repos not available')
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raise HTTPNotFound
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c.org_repo = org_repo
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c.other_repo = other_repo
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c.org_ref = org_ref[1]
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c.other_ref = other_ref[1]
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c.org_ref_type = org_ref[0]
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c.other_ref_type = other_ref[0]
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if rev_start and rev_end:
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# swap revs with cherry picked ones, save them for display
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#org_ref = ('rev', rev_start)
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#other_ref = ('rev', rev_end)
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c.org_ref = rev_start[:12]
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c.other_ref = rev_end[:12]
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# get parent of
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# rev start to include it in the diff
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_cs = other_repo.scm_instance.get_changeset(rev_start)
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rev_start = _cs.parents[0].raw_id if _cs.parents else EmptyChangeset().raw_id
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org_ref = ('rev', rev_start)
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other_ref = ('rev', rev_end)
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#if we cherry pick it's not remote, make the other_repo org_repo
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org_repo = other_repo
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c.cs_ranges, ancestor = PullRequestModel().get_compare_data(
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org_repo, org_ref, other_repo, other_ref)
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c.statuses = c.rhodecode_db_repo.statuses([x.raw_id for x in
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c.cs_ranges])
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if partial:
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return render('compare/compare_cs.html')
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if ancestor and org_repo != other_repo:
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# case we want a simple diff without incoming changesets,
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# previewing what will be merged.
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# Make the diff on the forked repo, with
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# revision that is common ancestor
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log.debug('Using ancestor %s as org_ref instead of %s'
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% (ancestor, org_ref))
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org_ref = ('rev', ancestor)
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org_repo = other_repo
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diff_limit = self.cut_off_limit if not c.fulldiff else None
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_diff = diffs.differ(org_repo, org_ref, other_repo, other_ref)
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diff_processor = diffs.DiffProcessor(_diff or '', format='gitdiff',
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diff_limit=diff_limit)
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_parsed = diff_processor.prepare()
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c.limited_diff = False
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if isinstance(_parsed, LimitedDiffContainer):
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c.limited_diff = True
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c.files = []
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c.changes = {}
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c.lines_added = 0
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c.lines_deleted = 0
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for f in _parsed:
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st = f['stats']
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if st[0] != 'b':
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c.lines_added += st[0]
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c.lines_deleted += st[1]
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fid = h.FID('', f['filename'])
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c.files.append([fid, f['operation'], f['filename'], f['stats']])
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diff = diff_processor.as_html(enable_comments=False, parsed_lines=[f])
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c.changes[fid] = [f['operation'], f['filename'], diff]
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return render('compare/compare_diff.html')
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