pullrequests: fix changesets ordering being reversed when creating new pull requests

41b4edf77b5b tried to make the displayed order of changeset consistent: The
topmost is always the latest.

That did however also reverse the ordering of the changesets sent back in the
post when used in the pull request creation form. Displaying the pull request
later on would reverse it again and thus show it in the 'wrong' order.

We now undo that reversing when creating the pull requests, and the stored data
will thus be the same as before.

rhodecode/controllers/pullrequests.py

@@ -1,521 +1,521 b''
 # -*- coding: utf-8 -*-
 """
     rhodecode.controllers.pullrequests
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
     pull requests controller for rhodecode for initializing pull requests
 
     :created_on: May 7, 2012
     :author: marcink
     :copyright: (C) 2010-2012 Marcin Kuzminski <[e-mail]>
     :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 logging
 import traceback
 import formencode
 
 from webob.exc import HTTPNotFound, HTTPForbidden
 from collections import defaultdict
 from itertools import groupby
 
 from pylons import request, response, session, tmpl_context as c, url
 from pylons.controllers.util import abort, redirect
 from pylons.i18n.translation import _
 
 from rhodecode.lib.compat import json
 from rhodecode.lib.base import BaseRepoController, render
 from rhodecode.lib.auth import LoginRequired, HasRepoPermissionAnyDecorator,\
     NotAnonymous
 from rhodecode.lib.helpers import Page
 from rhodecode.lib import helpers as h
 from rhodecode.lib import diffs
 from rhodecode.lib.utils import action_logger, jsonify
 from rhodecode.lib.vcs.utils import safe_str
 from rhodecode.lib.vcs.exceptions import EmptyRepositoryError
 from rhodecode.lib.vcs.backends.base import EmptyChangeset
 from rhodecode.lib.diffs import LimitedDiffContainer
 from rhodecode.model.db import User, PullRequest, ChangesetStatus,\
     ChangesetComment
 from rhodecode.model.pull_request import PullRequestModel
 from rhodecode.model.meta import Session
 from rhodecode.model.repo import RepoModel
 from rhodecode.model.comment import ChangesetCommentsModel
 from rhodecode.model.changeset_status import ChangesetStatusModel
 from rhodecode.model.forms import PullRequestForm
 from mercurial import scmutil
 from rhodecode.lib.utils2 import safe_int
 
 log = logging.getLogger(__name__)
 
 
 class PullrequestsController(BaseRepoController):
 
     @LoginRequired()
     @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',
                                    'repository.admin')
     def __before__(self):
         super(PullrequestsController, self).__before__()
         repo_model = RepoModel()
         c.users_array = repo_model.get_users_js()
         c.users_groups_array = repo_model.get_users_groups_js()
 
     def _get_repo_refs(self, repo, rev=None, branch_rev=None):
         """return a structure with repo's interesting changesets, suitable for
         the selectors in pullrequest.html"""
         # list named branches that has been merged to this named branch - it should probably merge back
         peers = []
 
         if rev:
             rev = safe_str(rev)
 
         if branch_rev:
             branch_rev = safe_str(branch_rev)
             # not restricting to merge() would also get branch point and be better
             # (especially because it would get the branch point) ... but is currently too expensive
             revs = ["sort(parents(branch(id('%s')) and merge()) - branch(id('%s')))" %
                     (branch_rev, branch_rev)]
             otherbranches = {}
             for i in scmutil.revrange(repo._repo, revs):
                 cs = repo.get_changeset(i)
                 otherbranches[cs.branch] = cs.raw_id
             for branch, node in otherbranches.iteritems():
                 selected = 'branch:%s:%s' % (branch, node)
                 peers.append((selected, branch))
 
         selected = None
         branches = []
         for branch, branchrev in repo.branches.iteritems():
             n = 'branch:%s:%s' % (branch, branchrev)
             branches.append((n, branch))
             if rev == branchrev:
                 selected = n
         bookmarks = []
         for bookmark, bookmarkrev in repo.bookmarks.iteritems():
             n = 'book:%s:%s' % (bookmark, bookmarkrev)
             bookmarks.append((n, bookmark))
             if rev == bookmarkrev:
                 selected = n
         tags = []
         for tag, tagrev in repo.tags.iteritems():
             n = 'tag:%s:%s' % (tag, tagrev)
             tags.append((n, tag))
             if rev == tagrev and tag != 'tip': # tip is not a real tag - and its branch is better
                 selected = n
 
         # prio 1: rev was selected as existing entry above
 
         # prio 2: create special entry for rev; rev _must_ be used
         specials = []
         if rev and selected is None:
             selected = 'rev:%s:%s' % (rev, rev)
             specials = [(selected, '%s: %s' % (_("Changeset"), rev[:12]))]
 
         # prio 3: most recent peer branch
         if peers and not selected:
             selected = peers[0][0][0]
 
         # prio 4: tip revision
         if not selected:
             selected = 'tag:tip:%s' % repo.tags['tip']
 
         groups = [(specials, _("Special")),
                   (peers, _("Peer branches")),
                   (bookmarks, _("Bookmarks")),
                   (branches, _("Branches")),
                   (tags, _("Tags")),
                   ]
         return [g for g in groups if g[0]], selected
 
     def _get_is_allowed_change_status(self, pull_request):
         owner = self.rhodecode_user.user_id == pull_request.user_id
         reviewer = self.rhodecode_user.user_id in [x.user_id for x in
                                                    pull_request.reviewers]
         return (self.rhodecode_user.admin or owner or reviewer)
 
     def show_all(self, repo_name):
         c.pull_requests = PullRequestModel().get_all(repo_name)
         c.repo_name = repo_name
         p = safe_int(request.params.get('page', 1), 1)
 
         c.pullrequests_pager = Page(c.pull_requests, page=p, items_per_page=10)
 
         c.pullrequest_data = render('/pullrequests/pullrequest_data.html')
 
         if request.environ.get('HTTP_X_PARTIAL_XHR'):
             return c.pullrequest_data
 
         return render('/pullrequests/pullrequest_show_all.html')
 
     @NotAnonymous()
     def index(self):
         org_repo = c.rhodecode_db_repo
 
         if org_repo.scm_instance.alias != 'hg':
             log.error('Review not available for GIT REPOS')
             raise HTTPNotFound
 
         try:
             org_repo.scm_instance.get_changeset()
         except EmptyRepositoryError, e:
             h.flash(h.literal(_('There are no changesets yet')),
                     category='warning')
             redirect(url('summary_home', repo_name=org_repo.repo_name))
 
         org_rev = request.GET.get('rev_end')
         # rev_start is not directly useful - its parent could however be used
         # as default for other and thus give a simple compare view
         #other_rev = request.POST.get('rev_start')
 
         c.org_repos = []
         c.org_repos.append((org_repo.repo_name, org_repo.repo_name))
         c.default_org_repo = org_repo.repo_name
         c.org_refs, c.default_org_ref = self._get_repo_refs(org_repo.scm_instance, org_rev)
 
         c.other_repos = []
         other_repos_info = {}
 
         def add_other_repo(repo, branch_rev=None):
             if repo.repo_name in other_repos_info: # shouldn't happen
                 return
             c.other_repos.append((repo.repo_name, repo.repo_name))
             other_refs, selected_other_ref = self._get_repo_refs(repo.scm_instance, branch_rev=branch_rev)
             other_repos_info[repo.repo_name] = {
                 'user': dict(user_id=repo.user.user_id,
                              username=repo.user.username,
                              firstname=repo.user.firstname,
                              lastname=repo.user.lastname,
                              gravatar_link=h.gravatar_url(repo.user.email, 14)),
                 'description': repo.description.split('\n', 1)[0],
                 'revs': h.select('other_ref', selected_other_ref, other_refs, class_='refs')
             }
 
         # add org repo to other so we can open pull request against peer branches on itself
         add_other_repo(org_repo, branch_rev=org_rev)
         c.default_other_repo = org_repo.repo_name
 
         # gather forks and add to this list ... even though it is rare to
         # request forks to pull from their parent
         for fork in org_repo.forks:
             add_other_repo(fork)
 
         # add parents of this fork also, but only if it's not empty
         if org_repo.parent and org_repo.parent.scm_instance.revisions:
             add_other_repo(org_repo.parent)
             c.default_other_repo = org_repo.parent.repo_name
 
         c.default_other_repo_info = other_repos_info[c.default_other_repo]
         c.other_repos_info = json.dumps(other_repos_info)
 
         return render('/pullrequests/pullrequest.html')
 
     @NotAnonymous()
     def create(self, repo_name):
         repo = RepoModel()._get_repo(repo_name)
         try:
             _form = PullRequestForm(repo.repo_id)().to_python(request.POST)
         except formencode.Invalid, errors:
             log.error(traceback.format_exc())
             if errors.error_dict.get('revisions'):
                 msg = 'Revisions: %s' % errors.error_dict['revisions']
             elif errors.error_dict.get('pullrequest_title'):
                 msg = _('Pull request requires a title with min. 3 chars')
             else:
                 msg = _('Error creating pull request')
 
             h.flash(msg, 'error')
             return redirect(url('pullrequest_home', repo_name=repo_name))
 
         org_repo = _form['org_repo']
         org_ref = 'rev:merge:%s' % _form['merge_rev']
         other_repo = _form['other_repo']
         other_ref = 'rev:ancestor:%s' % _form['ancestor_rev']
-        revisions = _form['revisions']
+        revisions = reversed(_form['revisions'])
         reviewers = _form['review_members']
 
         title = _form['pullrequest_title']
         description = _form['pullrequest_desc']
 
         try:
             pull_request = PullRequestModel().create(
                 self.rhodecode_user.user_id, org_repo, org_ref, other_repo,
                 other_ref, revisions, reviewers, title, description
             )
             Session().commit()
             h.flash(_('Successfully opened new pull request'),
                     category='success')
         except Exception:
             h.flash(_('Error occurred during sending pull request'),
                     category='error')
             log.error(traceback.format_exc())
             return redirect(url('pullrequest_home', repo_name=repo_name))
 
         return redirect(url('pullrequest_show', repo_name=other_repo,
                             pull_request_id=pull_request.pull_request_id))
 
     @NotAnonymous()
     @jsonify
     def update(self, repo_name, pull_request_id):
         pull_request = PullRequest.get_or_404(pull_request_id)
         if pull_request.is_closed():
             raise HTTPForbidden()
         #only owner or admin can update it
         owner = pull_request.author.user_id == c.rhodecode_user.user_id
         if h.HasPermissionAny('hg.admin', 'repository.admin')() or owner:
             reviewers_ids = map(int, filter(lambda v: v not in [None, ''],
                        request.POST.get('reviewers_ids', '').split(',')))
 
             PullRequestModel().update_reviewers(pull_request_id, reviewers_ids)
             Session().commit()
             return True
         raise HTTPForbidden()
 
     @NotAnonymous()
     @jsonify
     def delete(self, repo_name, pull_request_id):
         pull_request = PullRequest.get_or_404(pull_request_id)
         #only owner can delete it !
         if pull_request.author.user_id == c.rhodecode_user.user_id:
             PullRequestModel().delete(pull_request)
             Session().commit()
             h.flash(_('Successfully deleted pull request'),
                     category='success')
             return redirect(url('admin_settings_my_account', anchor='pullrequests'))
         raise HTTPForbidden()
 
     def _load_compare_data(self, pull_request, enable_comments=True):
         """
         Load context data needed for generating compare diff
 
         :param pull_request:
         :type pull_request:
         """
         org_repo = pull_request.org_repo
         (org_ref_type,
          org_ref_name,
          org_ref_rev) = pull_request.org_ref.split(':')
 
         other_repo = org_repo
         (other_ref_type,
          other_ref_name,
          other_ref_rev) = pull_request.other_ref.split(':')
 
         # despite opening revisions for bookmarks/branches/tags, we always
         # convert this to rev to prevent changes after bookmark or branch change
         org_ref = ('rev', org_ref_rev)
         other_ref = ('rev', other_ref_rev)
 
         c.org_repo = org_repo
         c.other_repo = other_repo
 
         c.fulldiff = fulldiff = request.GET.get('fulldiff')
 
         c.cs_ranges = [org_repo.get_changeset(x) for x in pull_request.revisions]
 
         c.statuses = org_repo.statuses([x.raw_id for x in c.cs_ranges])
 
         c.org_ref = org_ref[1]
         c.org_ref_type = org_ref[0]
         c.other_ref = other_ref[1]
         c.other_ref_type = other_ref[0]
 
         diff_limit = self.cut_off_limit if not fulldiff else None
 
         #we swap org/other ref since we run a simple diff on one repo
         log.debug('running diff between %s@%s and %s@%s'
                   % (org_repo.scm_instance.path, org_ref,
                      other_repo.scm_instance.path, other_ref))
         _diff = org_repo.scm_instance.get_diff(rev1=safe_str(org_ref[1]), rev2=safe_str(other_ref[1]))
 
         diff_processor = diffs.DiffProcessor(_diff or '', format='gitdiff',
                                              diff_limit=diff_limit)
         _parsed = diff_processor.prepare()
 
         c.limited_diff = False
         if isinstance(_parsed, LimitedDiffContainer):
             c.limited_diff = True
 
         c.files = []
         c.changes = {}
         c.lines_added = 0
         c.lines_deleted = 0
         for f in _parsed:
             st = f['stats']
             if st[0] != 'b':
                 c.lines_added += st[0]
                 c.lines_deleted += st[1]
             fid = h.FID('', f['filename'])
             c.files.append([fid, f['operation'], f['filename'], f['stats']])
             diff = diff_processor.as_html(enable_comments=enable_comments,
                                           parsed_lines=[f])
             c.changes[fid] = [f['operation'], f['filename'], diff]
 
     def show(self, repo_name, pull_request_id):
         repo_model = RepoModel()
         c.users_array = repo_model.get_users_js()
         c.users_groups_array = repo_model.get_users_groups_js()
         c.pull_request = PullRequest.get_or_404(pull_request_id)
         c.allowed_to_change_status = self._get_is_allowed_change_status(c.pull_request)
         cc_model = ChangesetCommentsModel()
         cs_model = ChangesetStatusModel()
         _cs_statuses = cs_model.get_statuses(c.pull_request.org_repo,
                                             pull_request=c.pull_request,
                                             with_revisions=True)
 
         cs_statuses = defaultdict(list)
         for st in _cs_statuses:
             cs_statuses[st.author.username] += [st]
 
         c.pull_request_reviewers = []
         c.pull_request_pending_reviewers = []
         for o in c.pull_request.reviewers:
             st = cs_statuses.get(o.user.username, None)
             if st:
                 sorter = lambda k: k.version
                 st = [(x, list(y)[0])
                       for x, y in (groupby(sorted(st, key=sorter), sorter))]
             else:
                 c.pull_request_pending_reviewers.append(o.user)
             c.pull_request_reviewers.append([o.user, st])
 
         # pull_requests repo_name we opened it against
         # ie. other_repo must match
         if repo_name != c.pull_request.other_repo.repo_name:
             raise HTTPNotFound
 
         # load compare data into template context
         enable_comments = not c.pull_request.is_closed()
         self._load_compare_data(c.pull_request, enable_comments=enable_comments)
 
         # inline comments
         c.inline_cnt = 0
         c.inline_comments = cc_model.get_inline_comments(
                                 c.rhodecode_db_repo.repo_id,
                                 pull_request=pull_request_id)
         # count inline comments
         for __, lines in c.inline_comments:
             for comments in lines.values():
                 c.inline_cnt += len(comments)
         # comments
         c.comments = cc_model.get_comments(c.rhodecode_db_repo.repo_id,
                                            pull_request=pull_request_id)
 
         try:
             cur_status = c.statuses[c.pull_request.revisions[0]][0]
         except Exception:
             log.error(traceback.format_exc())
             cur_status = 'undefined'
         if c.pull_request.is_closed() and 0:
             c.current_changeset_status = cur_status
         else:
             # changeset(pull-request) status calulation based on reviewers
             c.current_changeset_status = cs_model.calculate_status(
                                             c.pull_request_reviewers,
                                          )
         c.changeset_statuses = ChangesetStatus.STATUSES
 
         c.as_form = False
         c.ancestor = None # there is one - but right here we don't know which
         return render('/pullrequests/pullrequest_show.html')
 
     @NotAnonymous()
     @jsonify
     def comment(self, repo_name, pull_request_id):
         pull_request = PullRequest.get_or_404(pull_request_id)
         if pull_request.is_closed():
             raise HTTPForbidden()
 
         status = request.POST.get('changeset_status')
         change_status = request.POST.get('change_changeset_status')
         text = request.POST.get('text')
         close_pr = request.POST.get('save_close')
 
         allowed_to_change_status = self._get_is_allowed_change_status(pull_request)
         if status and change_status and allowed_to_change_status:
             _def = (_('Status change -> %s')
                             % ChangesetStatus.get_status_lbl(status))
             if close_pr:
                 _def = _('Closing with') + ' ' + _def
             text = text or _def
         comm = ChangesetCommentsModel().create(
             text=text,
             repo=c.rhodecode_db_repo.repo_id,
             user=c.rhodecode_user.user_id,
             pull_request=pull_request_id,
             f_path=request.POST.get('f_path'),
             line_no=request.POST.get('line'),
             status_change=(ChangesetStatus.get_status_lbl(status)
                            if status and change_status
                            and allowed_to_change_status else None),
             closing_pr=close_pr
         )
 
         action_logger(self.rhodecode_user,
                       'user_commented_pull_request:%s' % pull_request_id,
                       c.rhodecode_db_repo, self.ip_addr, self.sa)
 
         if allowed_to_change_status:
             # get status if set !
             if status and change_status:
                 ChangesetStatusModel().set_status(
                     c.rhodecode_db_repo.repo_id,
                     status,
                     c.rhodecode_user.user_id,
                     comm,
                     pull_request=pull_request_id
                 )
 
             if close_pr:
                 if status in ['rejected', 'approved']:
                     PullRequestModel().close_pull_request(pull_request_id)
                     action_logger(self.rhodecode_user,
                               'user_closed_pull_request:%s' % pull_request_id,
                               c.rhodecode_db_repo, self.ip_addr, self.sa)
                 else:
                     h.flash(_('Closing pull request on other statuses than '
                               'rejected or approved forbidden'),
                             category='warning')
 
         Session().commit()
 
         if not request.environ.get('HTTP_X_PARTIAL_XHR'):
             return redirect(h.url('pullrequest_show', repo_name=repo_name,
                                   pull_request_id=pull_request_id))
 
         data = {
            'target_id': h.safeid(h.safe_unicode(request.POST.get('f_path'))),
         }
         if comm:
             c.co = comm
             data.update(comm.get_dict())
             data.update({'rendered_text':
                          render('changeset/changeset_comment_block.html')})
 
         return data
 
     @NotAnonymous()
     @jsonify
     def delete_comment(self, repo_name, comment_id):
         co = ChangesetComment.get(comment_id)
         if co.pull_request.is_closed():
             #don't allow deleting comments on closed pull request
             raise HTTPForbidden()
 
         owner = 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()