pr-shadow: Adapt to new merge response object.

rhodecode/model/pull_request.py

@@ -1,1191 +1,1191 b''
 # -*- coding: utf-8 -*-
 
 # Copyright (C) 2012-2016  RhodeCode GmbH
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License, version 3
 # (only), as published by the Free Software Foundation.
 #
 # 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 Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 # This program is dual-licensed. If you wish to learn more about the
 # RhodeCode Enterprise Edition, including its added features, Support services,
 # and proprietary license terms, please see https://rhodecode.com/licenses/
 
 
 """
 pull request model for RhodeCode
 """
 
 from collections import namedtuple
 import json
 import logging
 import datetime
 import urllib
 
 from pylons.i18n.translation import _
 from pylons.i18n.translation import lazy_ugettext
 
 from rhodecode.lib import helpers as h, hooks_utils, diffs
 from rhodecode.lib.compat import OrderedDict
 from rhodecode.lib.hooks_daemon import prepare_callback_daemon
 from rhodecode.lib.markup_renderer import (
     DEFAULT_COMMENTS_RENDERER, RstTemplateRenderer)
 from rhodecode.lib.utils import action_logger
 from rhodecode.lib.utils2 import safe_unicode, safe_str, md5_safe
 from rhodecode.lib.vcs.backends.base import (
     Reference, MergeResponse, MergeFailureReason)
 from rhodecode.lib.vcs.conf import settings as vcs_settings
 from rhodecode.lib.vcs.exceptions import (
     CommitDoesNotExistError, EmptyRepositoryError)
 from rhodecode.model import BaseModel
 from rhodecode.model.changeset_status import ChangesetStatusModel
 from rhodecode.model.comment import ChangesetCommentsModel
 from rhodecode.model.db import (
     PullRequest, PullRequestReviewers, ChangesetStatus,
     PullRequestVersion, ChangesetComment)
 from rhodecode.model.meta import Session
 from rhodecode.model.notification import NotificationModel, \
     EmailNotificationModel
 from rhodecode.model.scm import ScmModel
 from rhodecode.model.settings import VcsSettingsModel
 
 
 log = logging.getLogger(__name__)
 
 
 class PullRequestModel(BaseModel):
 
     cls = PullRequest
 
     DIFF_CONTEXT = 3
 
     MERGE_STATUS_MESSAGES = {
         MergeFailureReason.NONE: lazy_ugettext(
             'This pull request can be automatically merged.'),
         MergeFailureReason.UNKNOWN: lazy_ugettext(
             'This pull request cannot be merged because of an unhandled'
             ' exception.'),
         MergeFailureReason.MERGE_FAILED: lazy_ugettext(
             'This pull request cannot be merged because of conflicts.'),
         MergeFailureReason.PUSH_FAILED: lazy_ugettext(
             'This pull request could not be merged because push to target'
             ' failed.'),
         MergeFailureReason.TARGET_IS_NOT_HEAD: lazy_ugettext(
             'This pull request cannot be merged because the target is not a'
             ' head.'),
         MergeFailureReason.HG_SOURCE_HAS_MORE_BRANCHES: lazy_ugettext(
             'This pull request cannot be merged because the source contains'
             ' more branches than the target.'),
         MergeFailureReason.HG_TARGET_HAS_MULTIPLE_HEADS: lazy_ugettext(
             'This pull request cannot be merged because the target has'
             ' multiple heads.'),
         MergeFailureReason.TARGET_IS_LOCKED: lazy_ugettext(
             'This pull request cannot be merged because the target repository'
             ' is locked.'),
         MergeFailureReason.MISSING_COMMIT: lazy_ugettext(
             'This pull request cannot be merged because the target or the '
             'source reference is missing.'),
     }
 
     def __get_pull_request(self, pull_request):
         return self._get_instance(PullRequest, pull_request)
 
     def _check_perms(self, perms, pull_request, user, api=False):
         if not api:
             return h.HasRepoPermissionAny(*perms)(
                 user=user, repo_name=pull_request.target_repo.repo_name)
         else:
             return h.HasRepoPermissionAnyApi(*perms)(
                 user=user, repo_name=pull_request.target_repo.repo_name)
 
     def check_user_read(self, pull_request, user, api=False):
         _perms = ('repository.admin', 'repository.write', 'repository.read',)
         return self._check_perms(_perms, pull_request, user, api)
 
     def check_user_merge(self, pull_request, user, api=False):
         _perms = ('repository.admin', 'repository.write', 'hg.admin',)
         return self._check_perms(_perms, pull_request, user, api)
 
     def check_user_update(self, pull_request, user, api=False):
         owner = user.user_id == pull_request.user_id
         return self.check_user_merge(pull_request, user, api) or owner
 
     def check_user_change_status(self, pull_request, user, api=False):
         reviewer = user.user_id in [x.user_id for x in
                                     pull_request.reviewers]
         return self.check_user_update(pull_request, user, api) or reviewer
 
     def get(self, pull_request):
         return self.__get_pull_request(pull_request)
 
     def _prepare_get_all_query(self, repo_name, source=False, statuses=None,
                                opened_by=None, order_by=None,
                                order_dir='desc'):
         repo = self._get_repo(repo_name)
         q = PullRequest.query()
         # source or target
         if source:
             q = q.filter(PullRequest.source_repo == repo)
         else:
             q = q.filter(PullRequest.target_repo == repo)
 
         # closed,opened
         if statuses:
             q = q.filter(PullRequest.status.in_(statuses))
 
         # opened by filter
         if opened_by:
             q = q.filter(PullRequest.user_id.in_(opened_by))
 
         if order_by:
             order_map = {
                 'name_raw': PullRequest.pull_request_id,
                 'title': PullRequest.title,
                 'updated_on_raw': PullRequest.updated_on
             }
             if order_dir == 'asc':
                 q = q.order_by(order_map[order_by].asc())
             else:
                 q = q.order_by(order_map[order_by].desc())
 
         return q
 
     def count_all(self, repo_name, source=False, statuses=None,
                   opened_by=None):
         """
         Count the number of pull requests for a specific repository.
 
         :param repo_name: target or source repo
         :param source: boolean flag to specify if repo_name refers to source
         :param statuses: list of pull request statuses
         :param opened_by: author user of the pull request
         :returns: int number of pull requests
         """
         q = self._prepare_get_all_query(
             repo_name, source=source, statuses=statuses, opened_by=opened_by)
 
         return q.count()
 
     def get_all(self, repo_name, source=False, statuses=None, opened_by=None,
                 offset=0, length=None, order_by=None, order_dir='desc'):
         """
         Get all pull requests for a specific repository.
 
         :param repo_name: target or source repo
         :param source: boolean flag to specify if repo_name refers to source
         :param statuses: list of pull request statuses
         :param opened_by: author user of the pull request
         :param offset: pagination offset
         :param length: length of returned list
         :param order_by: order of the returned list
         :param order_dir: 'asc' or 'desc' ordering direction
         :returns: list of pull requests
         """
         q = self._prepare_get_all_query(
             repo_name, source=source, statuses=statuses, opened_by=opened_by,
             order_by=order_by, order_dir=order_dir)
 
         if length:
             pull_requests = q.limit(length).offset(offset).all()
         else:
             pull_requests = q.all()
 
         return pull_requests
 
     def count_awaiting_review(self, repo_name, source=False, statuses=None,
                               opened_by=None):
         """
         Count the number of pull requests for a specific repository that are
         awaiting review.
 
         :param repo_name: target or source repo
         :param source: boolean flag to specify if repo_name refers to source
         :param statuses: list of pull request statuses
         :param opened_by: author user of the pull request
         :returns: int number of pull requests
         """
         pull_requests = self.get_awaiting_review(
             repo_name, source=source, statuses=statuses, opened_by=opened_by)
 
         return len(pull_requests)
 
     def get_awaiting_review(self, repo_name, source=False, statuses=None,
                             opened_by=None, offset=0, length=None,
                             order_by=None, order_dir='desc'):
         """
         Get all pull requests for a specific repository that are awaiting
         review.
 
         :param repo_name: target or source repo
         :param source: boolean flag to specify if repo_name refers to source
         :param statuses: list of pull request statuses
         :param opened_by: author user of the pull request
         :param offset: pagination offset
         :param length: length of returned list
         :param order_by: order of the returned list
         :param order_dir: 'asc' or 'desc' ordering direction
         :returns: list of pull requests
         """
         pull_requests = self.get_all(
             repo_name, source=source, statuses=statuses, opened_by=opened_by,
             order_by=order_by, order_dir=order_dir)
 
         _filtered_pull_requests = []
         for pr in pull_requests:
             status = pr.calculated_review_status()
             if status in [ChangesetStatus.STATUS_NOT_REVIEWED,
                           ChangesetStatus.STATUS_UNDER_REVIEW]:
                 _filtered_pull_requests.append(pr)
         if length:
             return _filtered_pull_requests[offset:offset+length]
         else:
             return _filtered_pull_requests
 
     def count_awaiting_my_review(self, repo_name, source=False, statuses=None,
                                  opened_by=None, user_id=None):
         """
         Count the number of pull requests for a specific repository that are
         awaiting review from a specific user.
 
         :param repo_name: target or source repo
         :param source: boolean flag to specify if repo_name refers to source
         :param statuses: list of pull request statuses
         :param opened_by: author user of the pull request
         :param user_id: reviewer user of the pull request
         :returns: int number of pull requests
         """
         pull_requests = self.get_awaiting_my_review(
             repo_name, source=source, statuses=statuses, opened_by=opened_by,
             user_id=user_id)
 
         return len(pull_requests)
 
     def get_awaiting_my_review(self, repo_name, source=False, statuses=None,
                                opened_by=None, user_id=None, offset=0,
                                length=None, order_by=None, order_dir='desc'):
         """
         Get all pull requests for a specific repository that are awaiting
         review from a specific user.
 
         :param repo_name: target or source repo
         :param source: boolean flag to specify if repo_name refers to source
         :param statuses: list of pull request statuses
         :param opened_by: author user of the pull request
         :param user_id: reviewer user of the pull request
         :param offset: pagination offset
         :param length: length of returned list
         :param order_by: order of the returned list
         :param order_dir: 'asc' or 'desc' ordering direction
         :returns: list of pull requests
         """
         pull_requests = self.get_all(
             repo_name, source=source, statuses=statuses, opened_by=opened_by,
             order_by=order_by, order_dir=order_dir)
 
         _my = PullRequestModel().get_not_reviewed(user_id)
         my_participation = []
         for pr in pull_requests:
             if pr in _my:
                 my_participation.append(pr)
         _filtered_pull_requests = my_participation
         if length:
             return _filtered_pull_requests[offset:offset+length]
         else:
             return _filtered_pull_requests
 
     def get_not_reviewed(self, user_id):
         return [
             x.pull_request for x in PullRequestReviewers.query().filter(
                 PullRequestReviewers.user_id == user_id).all()
         ]
 
     def get_versions(self, pull_request):
         """
         returns version of pull request sorted by ID descending
         """
         return PullRequestVersion.query()\
             .filter(PullRequestVersion.pull_request == pull_request)\
             .order_by(PullRequestVersion.pull_request_version_id.asc())\
             .all()
 
     def create(self, created_by, source_repo, source_ref, target_repo,
         target_ref, revisions, reviewers, title, description=None):
         created_by_user = self._get_user(created_by)
         source_repo = self._get_repo(source_repo)
         target_repo = self._get_repo(target_repo)
 
         pull_request = PullRequest()
         pull_request.source_repo = source_repo
         pull_request.source_ref = source_ref
         pull_request.target_repo = target_repo
         pull_request.target_ref = target_ref
         pull_request.revisions = revisions
         pull_request.title = title
         pull_request.description = description
         pull_request.author = created_by_user
 
         Session().add(pull_request)
         Session().flush()
 
         reviewer_ids = set()
         # members / reviewers
         for reviewer_object in reviewers:
             if isinstance(reviewer_object, tuple):
                 user_id, reasons = reviewer_object
             else:
                 user_id, reasons = reviewer_object, []
 
             user = self._get_user(user_id)
             reviewer_ids.add(user.user_id)
 
             reviewer = PullRequestReviewers(user, pull_request, reasons)
             Session().add(reviewer)
 
         # Set approval status to "Under Review" for all commits which are
         # part of this pull request.
         ChangesetStatusModel().set_status(
             repo=target_repo,
             status=ChangesetStatus.STATUS_UNDER_REVIEW,
             user=created_by_user,
             pull_request=pull_request
         )
 
         self.notify_reviewers(pull_request, reviewer_ids)
         self._trigger_pull_request_hook(
             pull_request, created_by_user, 'create')
 
         return pull_request
 
     def _trigger_pull_request_hook(self, pull_request, user, action):
         pull_request = self.__get_pull_request(pull_request)
         target_scm = pull_request.target_repo.scm_instance()
         if action == 'create':
             trigger_hook = hooks_utils.trigger_log_create_pull_request_hook
         elif action == 'merge':
             trigger_hook = hooks_utils.trigger_log_merge_pull_request_hook
         elif action == 'close':
             trigger_hook = hooks_utils.trigger_log_close_pull_request_hook
         elif action == 'review_status_change':
             trigger_hook = hooks_utils.trigger_log_review_pull_request_hook
         elif action == 'update':
             trigger_hook = hooks_utils.trigger_log_update_pull_request_hook
         else:
             return
 
         trigger_hook(
             username=user.username,
             repo_name=pull_request.target_repo.repo_name,
             repo_alias=target_scm.alias,
             pull_request=pull_request)
 
     def _get_commit_ids(self, pull_request):
         """
         Return the commit ids of the merged pull request.
 
         This method is not dealing correctly yet with the lack of autoupdates
         nor with the implicit target updates.
         For example: if a commit in the source repo is already in the target it
         will be reported anyways.
         """
         merge_rev = pull_request.merge_rev
         if merge_rev is None:
             raise ValueError('This pull request was not merged yet')
 
         commit_ids = list(pull_request.revisions)
         if merge_rev not in commit_ids:
             commit_ids.append(merge_rev)
 
         return commit_ids
 
     def merge(self, pull_request, user, extras):
         log.debug("Merging pull request %s", pull_request.pull_request_id)
         merge_state = self._merge_pull_request(pull_request, user, extras)
         if merge_state.executed:
             log.debug(
                 "Merge was successful, updating the pull request comments.")
             self._comment_and_close_pr(pull_request, user, merge_state)
             self._log_action('user_merged_pull_request', user, pull_request)
         else:
             log.warn("Merge failed, not updating the pull request.")
         return merge_state
 
     def _merge_pull_request(self, pull_request, user, extras):
         target_vcs = pull_request.target_repo.scm_instance()
         source_vcs = pull_request.source_repo.scm_instance()
         target_ref = self._refresh_reference(
             pull_request.target_ref_parts, target_vcs)
 
         message = _(
             'Merge pull request #%(pr_id)s from '
             '%(source_repo)s %(source_ref_name)s\n\n %(pr_title)s') % {
                 'pr_id': pull_request.pull_request_id,
                 'source_repo': source_vcs.name,
                 'source_ref_name': pull_request.source_ref_parts.name,
                 'pr_title': pull_request.title
             }
 
         workspace_id = self._workspace_id(pull_request)
         use_rebase = self._use_rebase_for_merging(pull_request)
 
         callback_daemon, extras = prepare_callback_daemon(
             extras, protocol=vcs_settings.HOOKS_PROTOCOL,
             use_direct_calls=vcs_settings.HOOKS_DIRECT_CALLS)
 
         with callback_daemon:
             # TODO: johbo: Implement a clean way to run a config_override
             # for a single call.
             target_vcs.config.set(
                 'rhodecode', 'RC_SCM_DATA', json.dumps(extras))
             merge_state = target_vcs.merge(
                 target_ref, source_vcs, pull_request.source_ref_parts,
                 workspace_id, user_name=user.username,
                 user_email=user.email, message=message, use_rebase=use_rebase)
         return merge_state
 
     def _comment_and_close_pr(self, pull_request, user, merge_state):
-        pull_request.merge_rev = merge_state.merge_commit_id
+        pull_request.merge_rev = merge_state.merge_ref.commit_id
         pull_request.updated_on = datetime.datetime.now()
 
         ChangesetCommentsModel().create(
             text=unicode(_('Pull request merged and closed')),
             repo=pull_request.target_repo.repo_id,
             user=user.user_id,
             pull_request=pull_request.pull_request_id,
             f_path=None,
             line_no=None,
             closing_pr=True
         )
 
         Session().add(pull_request)
         Session().flush()
         # TODO: paris: replace invalidation with less radical solution
         ScmModel().mark_for_invalidation(
             pull_request.target_repo.repo_name)
         self._trigger_pull_request_hook(pull_request, user, 'merge')
 
     def has_valid_update_type(self, pull_request):
         source_ref_type = pull_request.source_ref_parts.type
         return source_ref_type in ['book', 'branch', 'tag']
 
     def update_commits(self, pull_request):
         """
         Get the updated list of commits for the pull request
         and return the new pull request version and the list
         of commits processed by this update action
         """
 
         pull_request = self.__get_pull_request(pull_request)
         source_ref_type = pull_request.source_ref_parts.type
         source_ref_name = pull_request.source_ref_parts.name
         source_ref_id = pull_request.source_ref_parts.commit_id
 
         if not self.has_valid_update_type(pull_request):
             log.debug(
                 "Skipping update of pull request %s due to ref type: %s",
                 pull_request, source_ref_type)
             return (None, None)
 
         source_repo = pull_request.source_repo.scm_instance()
         source_commit = source_repo.get_commit(commit_id=source_ref_name)
         if source_ref_id == source_commit.raw_id:
             log.debug("Nothing changed in pull request %s", pull_request)
             return (None, None)
 
         # Finally there is a need for an update
         pull_request_version = self._create_version_from_snapshot(pull_request)
         self._link_comments_to_version(pull_request_version)
 
         target_ref_type = pull_request.target_ref_parts.type
         target_ref_name = pull_request.target_ref_parts.name
         target_ref_id = pull_request.target_ref_parts.commit_id
         target_repo = pull_request.target_repo.scm_instance()
 
         if target_ref_type in ('tag', 'branch', 'book'):
             target_commit = target_repo.get_commit(target_ref_name)
         else:
             target_commit = target_repo.get_commit(target_ref_id)
 
         # re-compute commit ids
         old_commit_ids = set(pull_request.revisions)
         pre_load = ["author", "branch", "date", "message"]
         commit_ranges = target_repo.compare(
             target_commit.raw_id, source_commit.raw_id, source_repo, merge=True,
             pre_load=pre_load)
 
         ancestor = target_repo.get_common_ancestor(
             target_commit.raw_id, source_commit.raw_id, source_repo)
 
         pull_request.source_ref = '%s:%s:%s' % (
             source_ref_type, source_ref_name, source_commit.raw_id)
         pull_request.target_ref = '%s:%s:%s' % (
             target_ref_type, target_ref_name, ancestor)
         pull_request.revisions = [
             commit.raw_id for commit in reversed(commit_ranges)]
         pull_request.updated_on = datetime.datetime.now()
         Session().add(pull_request)
         new_commit_ids = set(pull_request.revisions)
 
         changes = self._calculate_commit_id_changes(
             old_commit_ids, new_commit_ids)
 
         old_diff_data, new_diff_data = self._generate_update_diffs(
             pull_request, pull_request_version)
 
         ChangesetCommentsModel().outdate_comments(
             pull_request, old_diff_data=old_diff_data,
             new_diff_data=new_diff_data)
 
         file_changes = self._calculate_file_changes(
             old_diff_data, new_diff_data)
 
         # Add an automatic comment to the pull request
         update_comment = ChangesetCommentsModel().create(
             text=self._render_update_message(changes, file_changes),
             repo=pull_request.target_repo,
             user=pull_request.author,
             pull_request=pull_request,
             send_email=False, renderer=DEFAULT_COMMENTS_RENDERER)
 
         # Update status to "Under Review" for added commits
         for commit_id in changes.added:
             ChangesetStatusModel().set_status(
                 repo=pull_request.source_repo,
                 status=ChangesetStatus.STATUS_UNDER_REVIEW,
                 comment=update_comment,
                 user=pull_request.author,
                 pull_request=pull_request,
                 revision=commit_id)
 
         log.debug(
             'Updated pull request %s, added_ids: %s, common_ids: %s, '
             'removed_ids: %s', pull_request.pull_request_id,
             changes.added, changes.common, changes.removed)
         log.debug('Updated pull request with the following file changes: %s',
                   file_changes)
 
         log.info(
             "Updated pull request %s from commit %s to commit %s, "
             "stored new version %s of this pull request.",
             pull_request.pull_request_id, source_ref_id,
             pull_request.source_ref_parts.commit_id,
             pull_request_version.pull_request_version_id)
         Session().commit()
         self._trigger_pull_request_hook(pull_request, pull_request.author,
                                         'update')
 
         return (pull_request_version, changes)
 
     def _create_version_from_snapshot(self, pull_request):
         version = PullRequestVersion()
         version.title = pull_request.title
         version.description = pull_request.description
         version.status = pull_request.status
         version.created_on = pull_request.created_on
         version.updated_on = pull_request.updated_on
         version.user_id = pull_request.user_id
         version.source_repo = pull_request.source_repo
         version.source_ref = pull_request.source_ref
         version.target_repo = pull_request.target_repo
         version.target_ref = pull_request.target_ref
 
         version._last_merge_source_rev = pull_request._last_merge_source_rev
         version._last_merge_target_rev = pull_request._last_merge_target_rev
         version._last_merge_status = pull_request._last_merge_status
-        version.last_merge_rev = pull_request.last_merge_rev
+        version.shadow_merge_ref = pull_request.shadow_merge_ref
         version.merge_rev = pull_request.merge_rev
 
         version.revisions = pull_request.revisions
         version.pull_request = pull_request
         Session().add(version)
         Session().flush()
 
         return version
 
     def _generate_update_diffs(self, pull_request, pull_request_version):
         diff_context = (
             self.DIFF_CONTEXT +
             ChangesetCommentsModel.needed_extra_diff_context())
         old_diff = self._get_diff_from_pr_or_version(
             pull_request_version, context=diff_context)
         new_diff = self._get_diff_from_pr_or_version(
             pull_request, context=diff_context)
 
         old_diff_data = diffs.DiffProcessor(old_diff)
         old_diff_data.prepare()
         new_diff_data = diffs.DiffProcessor(new_diff)
         new_diff_data.prepare()
 
         return old_diff_data, new_diff_data
 
     def _link_comments_to_version(self, pull_request_version):
         """
         Link all unlinked comments of this pull request to the given version.
 
         :param pull_request_version: The `PullRequestVersion` to which
             the comments shall be linked.
 
         """
         pull_request = pull_request_version.pull_request
         comments = ChangesetComment.query().filter(
             # TODO: johbo: Should we query for the repo at all here?
             # Pending decision on how comments of PRs are to be related
             # to either the source repo, the target repo or no repo at all.
             ChangesetComment.repo_id == pull_request.target_repo.repo_id,
             ChangesetComment.pull_request == pull_request,
             ChangesetComment.pull_request_version == None)
 
         # TODO: johbo: Find out why this breaks if it is done in a bulk
         # operation.
         for comment in comments:
             comment.pull_request_version_id = (
                 pull_request_version.pull_request_version_id)
             Session().add(comment)
 
     def _calculate_commit_id_changes(self, old_ids, new_ids):
         added = new_ids.difference(old_ids)
         common = old_ids.intersection(new_ids)
         removed = old_ids.difference(new_ids)
         return ChangeTuple(added, common, removed)
 
     def _calculate_file_changes(self, old_diff_data, new_diff_data):
 
         old_files = OrderedDict()
         for diff_data in old_diff_data.parsed_diff:
             old_files[diff_data['filename']] = md5_safe(diff_data['raw_diff'])
 
         added_files = []
         modified_files = []
         removed_files = []
         for diff_data in new_diff_data.parsed_diff:
             new_filename = diff_data['filename']
             new_hash = md5_safe(diff_data['raw_diff'])
 
             old_hash = old_files.get(new_filename)
             if not old_hash:
                 # file is not present in old diff, means it's added
                 added_files.append(new_filename)
             else:
                 if new_hash != old_hash:
                     modified_files.append(new_filename)
                 # now remove a file from old, since we have seen it already
                 del old_files[new_filename]
 
         # removed files is when there are present in old, but not in NEW,
         # since we remove old files that are present in new diff, left-overs
         # if any should be the removed files
         removed_files.extend(old_files.keys())
 
         return FileChangeTuple(added_files, modified_files, removed_files)
 
     def _render_update_message(self, changes, file_changes):
         """
         render the message using DEFAULT_COMMENTS_RENDERER (RST renderer),
         so it's always looking the same disregarding on which default
         renderer system is using.
 
         :param changes: changes named tuple
         :param file_changes: file changes named tuple
 
         """
         new_status = ChangesetStatus.get_status_lbl(
             ChangesetStatus.STATUS_UNDER_REVIEW)
 
         changed_files = (
             file_changes.added + file_changes.modified + file_changes.removed)
 
         params = {
             'under_review_label': new_status,
             'added_commits': changes.added,
             'removed_commits': changes.removed,
             'changed_files': changed_files,
             'added_files': file_changes.added,
             'modified_files': file_changes.modified,
             'removed_files': file_changes.removed,
         }
         renderer = RstTemplateRenderer()
         return renderer.render('pull_request_update.mako', **params)
 
     def edit(self, pull_request, title, description):
         pull_request = self.__get_pull_request(pull_request)
         if pull_request.is_closed():
             raise ValueError('This pull request is closed')
         if title:
             pull_request.title = title
         pull_request.description = description
         pull_request.updated_on = datetime.datetime.now()
         Session().add(pull_request)
 
     def update_reviewers(self, pull_request, reviewer_data):
         """
         Update the reviewers in the pull request
 
         :param pull_request: the pr to update
         :param reviewer_data: list of tuples [(user, ['reason1', 'reason2'])]
         """
 
         reviewers_reasons = {}
         for user_id, reasons in reviewer_data:
             if isinstance(user_id, (int, basestring)):
                 user_id = self._get_user(user_id).user_id
             reviewers_reasons[user_id] = reasons
 
         reviewers_ids = set(reviewers_reasons.keys())
         pull_request = self.__get_pull_request(pull_request)
         current_reviewers = PullRequestReviewers.query()\
             .filter(PullRequestReviewers.pull_request ==
                     pull_request).all()
         current_reviewers_ids = set([x.user.user_id for x in current_reviewers])
 
         ids_to_add = reviewers_ids.difference(current_reviewers_ids)
         ids_to_remove = current_reviewers_ids.difference(reviewers_ids)
 
         log.debug("Adding %s reviewers", ids_to_add)
         log.debug("Removing %s reviewers", ids_to_remove)
         changed = False
         for uid in ids_to_add:
             changed = True
             _usr = self._get_user(uid)
             reasons = reviewers_reasons[uid]
             reviewer = PullRequestReviewers(_usr, pull_request, reasons)
             Session().add(reviewer)
 
         self.notify_reviewers(pull_request, ids_to_add)
 
         for uid in ids_to_remove:
             changed = True
             reviewer = PullRequestReviewers.query()\
                 .filter(PullRequestReviewers.user_id == uid,
                         PullRequestReviewers.pull_request == pull_request)\
                 .scalar()
             if reviewer:
                 Session().delete(reviewer)
         if changed:
             pull_request.updated_on = datetime.datetime.now()
             Session().add(pull_request)
 
         return ids_to_add, ids_to_remove
 
     def get_url(self, pull_request):
         return h.url('pullrequest_show',
                      repo_name=safe_str(pull_request.target_repo.repo_name),
                      pull_request_id=pull_request.pull_request_id,
                      qualified=True)
 
     def get_shadow_clone_url(self, pull_request):
         """
         Returns qualified url pointing to the shadow repository. If this pull
         request is closed there is no shadow repository and ``None`` will be
         returned.
         """
         if pull_request.is_closed():
             return None
         else:
             pr_url = urllib.unquote(self.get_url(pull_request))
             return safe_unicode('{pr_url}/repository'.format(pr_url=pr_url))
 
     def notify_reviewers(self, pull_request, reviewers_ids):
         # notification to reviewers
         if not reviewers_ids:
             return
 
         pull_request_obj = pull_request
         # get the current participants of this pull request
         recipients = reviewers_ids
         notification_type = EmailNotificationModel.TYPE_PULL_REQUEST
 
         pr_source_repo = pull_request_obj.source_repo
         pr_target_repo = pull_request_obj.target_repo
 
         pr_url = h.url(
             'pullrequest_show',
             repo_name=pr_target_repo.repo_name,
             pull_request_id=pull_request_obj.pull_request_id,
             qualified=True,)
 
         # set some variables for email notification
         pr_target_repo_url = h.url(
             'summary_home',
             repo_name=pr_target_repo.repo_name,
             qualified=True)
 
         pr_source_repo_url = h.url(
             'summary_home',
             repo_name=pr_source_repo.repo_name,
             qualified=True)
 
         # pull request specifics
         pull_request_commits = [
             (x.raw_id, x.message)
             for x in map(pr_source_repo.get_commit, pull_request.revisions)]
 
         kwargs = {
             'user': pull_request.author,
             'pull_request': pull_request_obj,
             'pull_request_commits': pull_request_commits,
 
             'pull_request_target_repo': pr_target_repo,
             'pull_request_target_repo_url': pr_target_repo_url,
 
             'pull_request_source_repo': pr_source_repo,
             'pull_request_source_repo_url': pr_source_repo_url,
 
             'pull_request_url': pr_url,
         }
 
         # pre-generate the subject for notification itself
         (subject,
          _h, _e,  # we don't care about those
          body_plaintext) = EmailNotificationModel().render_email(
             notification_type, **kwargs)
 
         # create notification objects, and emails
         NotificationModel().create(
             created_by=pull_request.author,
             notification_subject=subject,
             notification_body=body_plaintext,
             notification_type=notification_type,
             recipients=recipients,
             email_kwargs=kwargs,
         )
 
     def delete(self, pull_request):
         pull_request = self.__get_pull_request(pull_request)
         self._cleanup_merge_workspace(pull_request)
         Session().delete(pull_request)
 
     def close_pull_request(self, pull_request, user):
         pull_request = self.__get_pull_request(pull_request)
         self._cleanup_merge_workspace(pull_request)
         pull_request.status = PullRequest.STATUS_CLOSED
         pull_request.updated_on = datetime.datetime.now()
         Session().add(pull_request)
         self._trigger_pull_request_hook(
             pull_request, pull_request.author, 'close')
         self._log_action('user_closed_pull_request', user, pull_request)
 
     def close_pull_request_with_comment(self, pull_request, user, repo,
                                         message=None):
         status = ChangesetStatus.STATUS_REJECTED
 
         if not message:
             message = (
                 _('Status change %(transition_icon)s %(status)s') % {
                     'transition_icon': '>',
                     'status': ChangesetStatus.get_status_lbl(status)})
 
         internal_message = _('Closing with') + ' ' + message
 
         comm = ChangesetCommentsModel().create(
             text=internal_message,
             repo=repo.repo_id,
             user=user.user_id,
             pull_request=pull_request.pull_request_id,
             f_path=None,
             line_no=None,
             status_change=ChangesetStatus.get_status_lbl(status),
             status_change_type=status,
             closing_pr=True
         )
 
         ChangesetStatusModel().set_status(
             repo.repo_id,
             status,
             user.user_id,
             comm,
             pull_request=pull_request.pull_request_id
         )
         Session().flush()
 
         PullRequestModel().close_pull_request(
             pull_request.pull_request_id, user)
 
     def merge_status(self, pull_request):
         if not self._is_merge_enabled(pull_request):
             return False, _('Server-side pull request merging is disabled.')
         if pull_request.is_closed():
             return False, _('This pull request is closed.')
         merge_possible, msg = self._check_repo_requirements(
             target=pull_request.target_repo, source=pull_request.source_repo)
         if not merge_possible:
             return merge_possible, msg
 
         try:
             resp = self._try_merge(pull_request)
             status = resp.possible, self.merge_status_message(
                 resp.failure_reason)
         except NotImplementedError:
             status = False, _('Pull request merging is not supported.')
 
         return status
 
     def _check_repo_requirements(self, target, source):
         """
         Check if `target` and `source` have compatible requirements.
 
         Currently this is just checking for largefiles.
         """
         target_has_largefiles = self._has_largefiles(target)
         source_has_largefiles = self._has_largefiles(source)
         merge_possible = True
         message = u''
 
         if target_has_largefiles != source_has_largefiles:
             merge_possible = False
             if source_has_largefiles:
                 message = _(
                     'Target repository large files support is disabled.')
             else:
                 message = _(
                     'Source repository large files support is disabled.')
 
         return merge_possible, message
 
     def _has_largefiles(self, repo):
         largefiles_ui = VcsSettingsModel(repo=repo).get_ui_settings(
             'extensions', 'largefiles')
         return largefiles_ui and largefiles_ui[0].active
 
     def _try_merge(self, pull_request):
         """
         Try to merge the pull request and return the merge status.
         """
         log.debug(
             "Trying out if the pull request %s can be merged.",
             pull_request.pull_request_id)
         target_vcs = pull_request.target_repo.scm_instance()
         target_ref = self._refresh_reference(
             pull_request.target_ref_parts, target_vcs)
 
         target_locked = pull_request.target_repo.locked
         if target_locked and target_locked[0]:
             log.debug("The target repository is locked.")
             merge_state = MergeResponse(
                 False, False, None, MergeFailureReason.TARGET_IS_LOCKED)
         elif self._needs_merge_state_refresh(pull_request, target_ref):
             log.debug("Refreshing the merge status of the repository.")
             merge_state = self._refresh_merge_state(
                 pull_request, target_vcs, target_ref)
         else:
             possible = pull_request.\
                 _last_merge_status == MergeFailureReason.NONE
             merge_state = MergeResponse(
                 possible, False, None, pull_request._last_merge_status)
         log.debug("Merge response: %s", merge_state)
         return merge_state
 
     def _refresh_reference(self, reference, vcs_repository):
         if reference.type in ('branch', 'book'):
             name_or_id = reference.name
         else:
             name_or_id = reference.commit_id
         refreshed_commit = vcs_repository.get_commit(name_or_id)
         refreshed_reference = Reference(
             reference.type, reference.name, refreshed_commit.raw_id)
         return refreshed_reference
 
     def _needs_merge_state_refresh(self, pull_request, target_reference):
         return not(
             pull_request.revisions and
             pull_request.revisions[0] == pull_request._last_merge_source_rev and
             target_reference.commit_id == pull_request._last_merge_target_rev)
 
     def _refresh_merge_state(self, pull_request, target_vcs, target_reference):
         workspace_id = self._workspace_id(pull_request)
         source_vcs = pull_request.source_repo.scm_instance()
         use_rebase = self._use_rebase_for_merging(pull_request)
         merge_state = target_vcs.merge(
             target_reference, source_vcs, pull_request.source_ref_parts,
             workspace_id, dry_run=True, use_rebase=use_rebase)
 
         # Do not store the response if there was an unknown error.
         if merge_state.failure_reason != MergeFailureReason.UNKNOWN:
             pull_request._last_merge_source_rev = \
                 pull_request.source_ref_parts.commit_id
             pull_request._last_merge_target_rev = target_reference.commit_id
             pull_request._last_merge_status = merge_state.failure_reason
-            pull_request.last_merge_rev = merge_state.merge_commit_id
+            pull_request.shadow_merge_ref = merge_state.merge_ref
             Session().add(pull_request)
             Session().commit()
 
         return merge_state
 
     def _workspace_id(self, pull_request):
         workspace_id = 'pr-%s' % pull_request.pull_request_id
         return workspace_id
 
     def merge_status_message(self, status_code):
         """
         Return a human friendly error message for the given merge status code.
         """
         return self.MERGE_STATUS_MESSAGES[status_code]
 
     def generate_repo_data(self, repo, commit_id=None, branch=None,
                            bookmark=None):
         all_refs, selected_ref = \
             self._get_repo_pullrequest_sources(
                 repo.scm_instance(), commit_id=commit_id,
                 branch=branch, bookmark=bookmark)
 
         refs_select2 = []
         for element in all_refs:
             children = [{'id': x[0], 'text': x[1]} for x in element[0]]
             refs_select2.append({'text': element[1], 'children': children})
 
         return {
             'user': {
                 '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': h.chop_at_smart(repo.description, '\n'),
             'refs': {
                 'all_refs': all_refs,
                 'selected_ref': selected_ref,
                 'select2_refs': refs_select2
             }
         }
 
     def generate_pullrequest_title(self, source, source_ref, target):
         return u'{source}#{at_ref} to {target}'.format(
             source=source,
             at_ref=source_ref,
             target=target,
         )
 
     def _cleanup_merge_workspace(self, pull_request):
         # Merging related cleanup
         target_scm = pull_request.target_repo.scm_instance()
         workspace_id = 'pr-%s' % pull_request.pull_request_id
 
         try:
             target_scm.cleanup_merge_workspace(workspace_id)
         except NotImplementedError:
             pass
 
     def _get_repo_pullrequest_sources(
             self, repo, commit_id=None, branch=None, bookmark=None):
         """
         Return a structure with repo's interesting commits, suitable for
         the selectors in pullrequest controller
 
         :param commit_id: a commit that must be in the list somehow
             and selected by default
         :param branch: a branch that must be in the list and selected
             by default - even if closed
         :param bookmark: a bookmark that must be in the list and selected
         """
 
         commit_id = safe_str(commit_id) if commit_id else None
         branch = safe_str(branch) if branch else None
         bookmark = safe_str(bookmark) if bookmark else None
 
         selected = None
 
         # order matters: first source that has commit_id in it will be selected
         sources = []
         sources.append(('book', repo.bookmarks.items(), _('Bookmarks'), bookmark))
         sources.append(('branch', repo.branches.items(), _('Branches'), branch))
 
         if commit_id:
             ref_commit = (h.short_id(commit_id), commit_id)
             sources.append(('rev', [ref_commit], _('Commit IDs'), commit_id))
 
         sources.append(
             ('branch', repo.branches_closed.items(), _('Closed Branches'), branch),
         )
 
         groups = []
         for group_key, ref_list, group_name, match in sources:
             group_refs = []
             for ref_name, ref_id in ref_list:
                 ref_key = '%s:%s:%s' % (group_key, ref_name, ref_id)
                 group_refs.append((ref_key, ref_name))
 
                 if not selected:
                     if set([commit_id, match]) & set([ref_id, ref_name]):
                         selected = ref_key
 
             if group_refs:
                 groups.append((group_refs, group_name))
 
         if not selected:
             ref = commit_id or branch or bookmark
             if ref:
                 raise CommitDoesNotExistError(
                     'No commit refs could be found matching: %s' % ref)
             elif repo.DEFAULT_BRANCH_NAME in repo.branches:
                 selected = 'branch:%s:%s' % (
                     repo.DEFAULT_BRANCH_NAME,
                     repo.branches[repo.DEFAULT_BRANCH_NAME]
                 )
             elif repo.commit_ids:
                 rev = repo.commit_ids[0]
                 selected = 'rev:%s:%s' % (rev, rev)
             else:
                 raise EmptyRepositoryError()
         return groups, selected
 
     def get_diff(self, pull_request, context=DIFF_CONTEXT):
         pull_request = self.__get_pull_request(pull_request)
         return self._get_diff_from_pr_or_version(pull_request, context=context)
 
     def _get_diff_from_pr_or_version(self, pr_or_version, context):
         source_repo = pr_or_version.source_repo
 
         # we swap org/other ref since we run a simple diff on one repo
         target_ref_id = pr_or_version.target_ref_parts.commit_id
         source_ref_id = pr_or_version.source_ref_parts.commit_id
         target_commit = source_repo.get_commit(
             commit_id=safe_str(target_ref_id))
         source_commit = source_repo.get_commit(commit_id=safe_str(source_ref_id))
         vcs_repo = source_repo.scm_instance()
 
         # TODO: johbo: In the context of an update, we cannot reach
         # the old commit anymore with our normal mechanisms. It needs
         # some sort of special support in the vcs layer to avoid this
         # workaround.
         if (source_commit.raw_id == vcs_repo.EMPTY_COMMIT_ID and
                 vcs_repo.alias == 'git'):
             source_commit.raw_id = safe_str(source_ref_id)
 
         log.debug('calculating diff between '
                   'source_ref:%s and target_ref:%s for repo `%s`',
                   target_ref_id, source_ref_id,
                   safe_unicode(vcs_repo.path))
 
         vcs_diff = vcs_repo.get_diff(
             commit1=target_commit, commit2=source_commit, context=context)
         return vcs_diff
 
     def _is_merge_enabled(self, pull_request):
         settings_model = VcsSettingsModel(repo=pull_request.target_repo)
         settings = settings_model.get_general_settings()
         return settings.get('rhodecode_pr_merge_enabled', False)
 
     def _use_rebase_for_merging(self, pull_request):
         settings_model = VcsSettingsModel(repo=pull_request.target_repo)
         settings = settings_model.get_general_settings()
         return settings.get('rhodecode_hg_use_rebase_for_merging', False)
 
     def _log_action(self, action, user, pull_request):
         action_logger(
             user,
             '{action}:{pr_id}'.format(
                 action=action, pr_id=pull_request.pull_request_id),
             pull_request.target_repo)
 
 
 ChangeTuple = namedtuple('ChangeTuple',
                          ['added', 'common', 'removed'])
 
 FileChangeTuple = namedtuple('FileChangeTuple',
                              ['added', 'modified', 'removed'])

rhodecode/templates/pullrequests/pullrequest_show.html

@@ -1,621 +1,621 b''
 <%inherit file="/base/base.html"/>
 
 <%def name="title()">
     ${_('%s Pull Request #%s') % (c.repo_name, c.pull_request.pull_request_id)}
     %if c.rhodecode_name:
         &middot; ${h.branding(c.rhodecode_name)}
     %endif
 </%def>
 
 <%def name="breadcrumbs_links()">
     <span id="pr-title">
     ${c.pull_request.title}
     %if c.pull_request.is_closed():
         (${_('Closed')})
     %endif
     </span>
     <div id="pr-title-edit" class="input" style="display: none;">
         ${h.text('pullrequest_title', id_="pr-title-input", class_="large", value=c.pull_request.title)}
     </div>
 </%def>
 
 <%def name="menu_bar_nav()">
     ${self.menu_items(active='repositories')}
 </%def>
 
 <%def name="menu_bar_subnav()">
     ${self.repo_menu(active='showpullrequest')}
 </%def>
 
 <%def name="main()">
 <script type="text/javascript">
     // TODO: marcink switch this to pyroutes
     AJAX_COMMENT_DELETE_URL = "${url('pullrequest_comment_delete',repo_name=c.repo_name,comment_id='__COMMENT_ID__')}";
     templateContext.pull_request_data.pull_request_id = ${c.pull_request.pull_request_id};
 </script>
 <div class="box">
   <div class="title">
     ${self.repo_page_title(c.rhodecode_db_repo)}
   </div>
 
   ${self.breadcrumbs()}
 
 
   <div class="box pr-summary">
       <div class="summary-details block-left">
         <%summary = lambda n:{False:'summary-short'}.get(n)%>
         <div class="pr-details-title">
             ${_('Pull request #%s') % c.pull_request.pull_request_id} ${_('From')} ${h.format_date(c.pull_request.created_on)}
             %if c.allowed_to_update:
               <span id="open_edit_pullrequest" class="block-right action_button">${_('Edit')}</span>
               <span id="close_edit_pullrequest" class="block-right action_button" style="display: none;">${_('Close')}</span>
             %endif
         </div>
 
         <div id="summary" class="fields pr-details-content">
            <div class="field">
             <div class="label-summary">
                 <label>${_('Origin')}:</label>
             </div>
             <div class="input">
                 <div class="pr-origininfo">
                     ## branch link is only valid if it is a branch
                     <span class="tag">
                       %if c.pull_request.source_ref_parts.type == 'branch':
                         <a href="${h.url('changelog_home', repo_name=c.pull_request.source_repo.repo_name, branch=c.pull_request.source_ref_parts.name)}">${c.pull_request.source_ref_parts.type}: ${c.pull_request.source_ref_parts.name}</a>
                       %else:
                         ${c.pull_request.source_ref_parts.type}: ${c.pull_request.source_ref_parts.name}
                       %endif
                     </span>
                     <span class="clone-url">
                         <a href="${h.url('summary_home', repo_name=c.pull_request.source_repo.repo_name)}">${c.pull_request.source_repo.clone_url()}</a>
                     </span>
                 </div>
                 <div class="pr-pullinfo">
                      %if h.is_hg(c.pull_request.source_repo):
                         <input type="text"  value="hg pull -r ${h.short_id(c.source_ref)} ${c.pull_request.source_repo.clone_url()}" readonly="readonly">
                      %elif h.is_git(c.pull_request.source_repo):
                         <input type="text"  value="git pull ${c.pull_request.source_repo.clone_url()} ${c.pull_request.source_ref_parts.name}" readonly="readonly">
                      %endif
                 </div>
             </div>
            </div>
            <div class="field">
             <div class="label-summary">
                 <label>${_('Target')}:</label>
             </div>
             <div class="input">
                 <div class="pr-targetinfo">
                     ## branch link is only valid if it is a branch
                     <span class="tag">
                       %if c.pull_request.target_ref_parts.type == 'branch':
                         <a href="${h.url('changelog_home', repo_name=c.pull_request.target_repo.repo_name, branch=c.pull_request.target_ref_parts.name)}">${c.pull_request.target_ref_parts.type}: ${c.pull_request.target_ref_parts.name}</a>
                       %else:
                         ${c.pull_request.target_ref_parts.type}: ${c.pull_request.target_ref_parts.name}
                       %endif
                     </span>
                     <span class="clone-url">
                         <a href="${h.url('summary_home', repo_name=c.pull_request.target_repo.repo_name)}">${c.pull_request.target_repo.clone_url()}</a>
                     </span>
                 </div>
             </div>
            </div>
 
             ## Link to the shadow repository.
-            %if not c.pull_request.is_closed() and c.pull_request.last_merge_rev:
+            %if not c.pull_request.is_closed() and c.pull_request.shadow_merge_ref:
                 <div class="field">
                     <div class="label-summary">
                         <label>Merge:</label>
                     </div>
                     <div class="input">
                         <div class="pr-mergeinfo">
                             %if h.is_hg(c.pull_request.target_repo):
-                                <input type="text"  value="hg clone -u pr-merge ${c.shadow_clone_url} pull-request-${c.pull_request.pull_request_id}" readonly="readonly">
+                                <input type="text"  value="hg clone -u ${c.pull_request.shadow_merge_ref.name} ${c.shadow_clone_url} pull-request-${c.pull_request.pull_request_id}" readonly="readonly">
                             %elif h.is_git(c.pull_request.target_repo):
-                                <input type="text"  value="git clone --branch pr-merge ${c.shadow_clone_url} pull-request-${c.pull_request.pull_request_id}" readonly="readonly">
+                                <input type="text"  value="git clone --branch ${c.pull_request.shadow_merge_ref.name} ${c.shadow_clone_url} pull-request-${c.pull_request.pull_request_id}" readonly="readonly">
                             %endif
                         </div>
                     </div>
                 </div>
             %endif
 
            <div class="field">
             <div class="label-summary">
                 <label>${_('Review')}:</label>
             </div>
             <div class="input">
               %if c.pull_request_review_status:
                 <div class="${'flag_status %s' % c.pull_request_review_status} tooltip pull-left"></div>
                 <span class="changeset-status-lbl tooltip">
                   %if c.pull_request.is_closed():
                       ${_('Closed')},
                   %endif
                   ${h.commit_status_lbl(c.pull_request_review_status)}
                 </span>
                 - ${ungettext('calculated based on %s reviewer vote', 'calculated based on %s reviewers votes', len(c.pull_request_reviewers)) % len(c.pull_request_reviewers)}
               %endif
             </div>
            </div>
            <div class="field">
             <div class="pr-description-label label-summary">
                 <label>${_('Description')}:</label>
             </div>
             <div id="pr-desc" class="input">
                 <div class="pr-description">${h.urlify_commit_message(c.pull_request.description, c.repo_name)}</div>
             </div>
             <div id="pr-desc-edit" class="input textarea editor" style="display: none;">
                 <textarea id="pr-description-input" size="30">${c.pull_request.description}</textarea>
             </div>
            </div>
            <div class="field">
             <div class="label-summary">
                 <label>${_('Comments')}:</label>
             </div>
             <div class="input">
                 <div>
                     <div class="comments-number">
                         %if c.comments:
                             <a href="#comments">${ungettext("%d Pull request comment", "%d Pull request comments", len(c.comments)) % len(c.comments)}</a>,
                         %else:
                             ${ungettext("%d Pull request comment", "%d Pull request comments", len(c.comments)) % len(c.comments)}
                         %endif
                         %if c.inline_cnt:
                             ## this is replaced with a proper link to first comment via JS linkifyComments() func
                             <a href="#inline-comments" id="inline-comments-counter">${ungettext("%d Inline Comment", "%d Inline Comments", c.inline_cnt) % c.inline_cnt}</a>
                         %else:
                             ${ungettext("%d Inline Comment", "%d Inline Comments", c.inline_cnt) % c.inline_cnt}
                         %endif
 
                         % if c.outdated_cnt:
                           ,${ungettext("%d Outdated Comment", "%d Outdated Comments", c.outdated_cnt) % c.outdated_cnt} <span id="show-outdated-comments" class="btn btn-link">${_('(Show)')}</span>
                         % endif
                    </div>
                 </div>
             </div>
            </div>
            <div id="pr-save" class="field" style="display: none;">
             <div class="label-summary"></div>
             <div class="input">
               <span id="edit_pull_request" class="btn btn-small">${_('Save Changes')}</span>
             </div>
            </div>
         </div>
       </div>
       <div>
         ## AUTHOR
         <div class="reviewers-title block-right">
           <div class="pr-details-title">
               ${_('Author')}
           </div>
         </div>
         <div class="block-right pr-details-content reviewers">
             <ul class="group_members">
               <li>
                 ${self.gravatar_with_user(c.pull_request.author.email, 16)}
               </li>
             </ul>
         </div>
         ## REVIEWERS
         <div class="reviewers-title block-right">
           <div class="pr-details-title">
               ${_('Pull request reviewers')}
               %if c.allowed_to_update:
                 <span id="open_edit_reviewers" class="block-right action_button">${_('Edit')}</span>
                 <span id="close_edit_reviewers" class="block-right action_button" style="display: none;">${_('Close')}</span>
               %endif
           </div>
         </div>
         <div id="reviewers" class="block-right pr-details-content reviewers">
           ## members goes here !
             <input type="hidden" name="__start__" value="review_members:sequence">
             <ul id="review_members" class="group_members">
             %for member,reasons,status in c.pull_request_reviewers:
               <li id="reviewer_${member.user_id}">
                 <div class="reviewers_member">
                     <div class="reviewer_status tooltip" title="${h.tooltip(h.commit_status_lbl(status[0][1].status if status else 'not_reviewed'))}">
                       <div class="${'flag_status %s' % (status[0][1].status if status else 'not_reviewed')} pull-left reviewer_member_status"></div>
                     </div>
                   <div id="reviewer_${member.user_id}_name" class="reviewer_name">
                     ${self.gravatar_with_user(member.email, 16)}
                   </div>
                   <input type="hidden" name="__start__" value="reviewer:mapping">
                   <input type="hidden" name="__start__" value="reasons:sequence">
                   %for reason in reasons:
                   <div class="reviewer_reason">- ${reason}</div>
                   <input type="hidden" name="reason" value="${reason}">
 
                   %endfor
                   <input type="hidden" name="__end__" value="reasons:sequence">
                   <input id="reviewer_${member.user_id}_input" type="hidden" value="${member.user_id}" name="user_id" />
                   <input type="hidden" name="__end__" value="reviewer:mapping">
                   %if c.allowed_to_update:
                   <div class="reviewer_member_remove action_button" onclick="removeReviewMember(${member.user_id}, true)" style="visibility: hidden;">
                       <i class="icon-remove-sign" ></i>
                   </div>
                   %endif
                 </div>
               </li>
             %endfor
             </ul>
             <input type="hidden" name="__end__" value="review_members:sequence">
           %if not c.pull_request.is_closed():
           <div id="add_reviewer_input" class='ac' style="display: none;">
             %if c.allowed_to_update:
             <div class="reviewer_ac">
                ${h.text('user', class_='ac-input', placeholder=_('Add reviewer'))}
                <div id="reviewers_container"></div>
             </div>
             <div>
              <span id="update_pull_request" class="btn btn-small">${_('Save Changes')}</span>
             </div>
             %endif
           </div>
           %endif
         </div>
       </div>
   </div>
   <div class="box">
       ##DIFF
       <div class="table" >
           <div id="changeset_compare_view_content">
               ##CS
               % if c.missing_requirements:
                 <div class="box">
                   <div class="alert alert-warning">
                     <div>
                       <strong>${_('Missing requirements:')}</strong>
                       ${_('These commits cannot be displayed, because this repository uses the Mercurial largefiles extension, which was not enabled.')}
                     </div>
                   </div>
                 </div>
               % elif c.missing_commits:
                 <div class="box">
                   <div class="alert alert-warning">
                     <div>
                       <strong>${_('Missing commits')}:</strong>
                         ${_('This pull request cannot be displayed, because one or more commits no longer exist in the source repository.')}
                         ${_('Please update this pull request, push the commits back into the source repository, or consider closing this pull request.')}
                     </div>
                   </div>
                 </div>
               % endif
                 <div class="compare_view_commits_title">
                     % if c.allowed_to_update and not c.pull_request.is_closed():
                       <button id="update_commits" class="btn btn-small">${_('Update commits')}</button>
                     % endif
                     % if len(c.commit_ranges):
                       <h2>${ungettext('Compare View: %s commit','Compare View: %s commits', len(c.commit_ranges)) % len(c.commit_ranges)}</h2>
                     % endif
                 </div>
               % if not c.missing_commits:
                 <%include file="/compare/compare_commits.html" />
                 ## FILES
                 <div class="cs_files_title">
                     <span class="cs_files_expand">
                         <span id="expand_all_files">${_('Expand All')}</span> | <span id="collapse_all_files">${_('Collapse All')}</span>
                     </span>
                     <h2>
                         ${diff_block.diff_summary_text(len(c.files), c.lines_added, c.lines_deleted, c.limited_diff)}
                     </h2>
                 </div>
               % endif
               <div class="cs_files">
               %if not c.files and not c.missing_commits:
                   <span class="empty_data">${_('No files')}</span>
               %endif
               <table class="compare_view_files">
               <%namespace name="diff_block" file="/changeset/diff_block.html"/>
               %for FID, change, path, stats in c.files:
                   <tr class="cs_${change} collapse_file" fid="${FID}">
                       <td class="cs_icon_td">
                           <span class="collapse_file_icon" fid="${FID}"></span>
                       </td>
                       <td class="cs_icon_td">
                           <div class="flag_status not_reviewed hidden"></div>
                       </td>
                       <td class="cs_${change}" id="a_${FID}">
                           <div class="node">
                               <a href="#a_${FID}">
                                   <i class="icon-file-${change.lower()}"></i>
                                   ${h.safe_unicode(path)}
                               </a>
                           </div>
                       </td>
                       <td>
                           <div class="changes pull-right">${h.fancy_file_stats(stats)}</div>
                           <div class="comment-bubble pull-right" data-path="${path}">
                             <i class="icon-comment"></i>
                           </div>
                       </td>
                   </tr>
                   <tr fid="${FID}" id="diff_${FID}" class="diff_links">
                       <td></td>
                       <td></td>
                       <td class="cs_${change}">
                           %if c.target_repo.repo_name == c.repo_name:
                               ${diff_block.diff_menu(c.repo_name, h.safe_unicode(path), c.target_ref, c.source_ref, change)}
                           %else:
                               ## this is slightly different case later, since the other repo can have this
                               ## file in other state than the origin repo
                               ${diff_block.diff_menu(c.target_repo.repo_name, h.safe_unicode(path), c.target_ref, c.source_ref, change)}
                           %endif
                       </td>
                       <td class="td-actions rc-form">
                         <div data-comment-id="${FID}" class="btn-link show-inline-comments comments-visible">
                           <span class="comments-show">${_('Show comments')}</span>
                           <span class="comments-hide">${_('Hide comments')}</span>
                         </div>
                       </td>
                   </tr>
                   <tr id="tr_${FID}">
                     <td></td>
                     <td></td>
                     <td class="injected_diff" colspan="2">
                         ${diff_block.diff_block_simple([c.changes[FID]])}
                     </td>
                   </tr>
 
                 ## Loop through inline comments
                   % if c.outdated_comments.get(path,False):
                     <tr class="outdated">
                       <td></td>
                       <td></td>
                       <td colspan="2">
                         <p>${_('Outdated Inline Comments')}:</p>
                       </td>
                     </tr>
                     <tr class="outdated">
                       <td></td>
                       <td></td>
                       <td colspan="2" class="outdated_comment_block">
                       % for line, comments in c.outdated_comments[path].iteritems():
                           <div class="inline-comment-placeholder" path="${path}" target_id="${h.safeid(h.safe_unicode(path))}">
                             % for co in comments:
                               ${comment.comment_block_outdated(co)}
                             % endfor
                           </div>
                       % endfor
                       </td>
                     </tr>
                   % endif
               %endfor
               ## Loop through inline comments for deleted files
               %for path in c.deleted_files:
                 <tr class="outdated deleted">
                   <td></td>
                   <td></td>
                   <td>${path}</td>
                 </tr>
                 <tr class="outdated deleted">
                   <td></td>
                   <td></td>
                   <td>(${_('Removed')})</td>
                 </tr>
                 % if path in c.outdated_comments:
                   <tr class="outdated deleted">
                     <td></td>
                     <td></td>
                     <td colspan="2">
                       <p>${_('Outdated Inline Comments')}:</p>
                     </td>
                   </tr>
                   <tr class="outdated">
                     <td></td>
                     <td></td>
                     <td colspan="2" class="outdated_comment_block">
                     % for line, comments in c.outdated_comments[path].iteritems():
                         <div class="inline-comment-placeholder" path="${path}" target_id="${h.safeid(h.safe_unicode(path))}">
                           % for co in comments:
                             ${comment.comment_block_outdated(co)}
                           % endfor
                         </div>
                     % endfor
                     </td>
                   </tr>
                 % endif
               %endfor
               </table>
               </div>
               % if c.limited_diff:
               <h5>${_('Commit was too big and was cut off...')} <a href="${h.url.current(fulldiff=1, **request.GET.mixed())}" onclick="return confirm('${_("Showing a huge diff might take some time and resources")}')">${_('Show full diff')}</a></h5>
               % endif
           </div>
       </div>
 
       % if c.limited_diff:
         <p>${_('Commit was too big and was cut off...')} <a href="${h.url.current(fulldiff=1, **request.GET.mixed())}" onclick="return confirm('${_("Showing a huge diff might take some time and resources")}')">${_('Show full diff')}</a></p>
       % endif
 
       ## template for inline comment form
       <%namespace name="comment" file="/changeset/changeset_file_comment.html"/>
       ${comment.comment_inline_form()}
 
       ## render comments and inlines
       ${comment.generate_comments(include_pull_request=True, is_pull_request=True)}
 
       % if not c.pull_request.is_closed():
         ## main comment form and it status
         ${comment.comments(h.url('pullrequest_comment', repo_name=c.repo_name,
                                   pull_request_id=c.pull_request.pull_request_id),
                            c.pull_request_review_status,
                            is_pull_request=True, change_status=c.allowed_to_change_status)}
       %endif
 
       <script type="text/javascript">
         if (location.hash) {
           var result = splitDelimitedHash(location.hash);
           var line = $('html').find(result.loc);
             if (line.length > 0){
                 offsetScroll(line, 70);
             }
         }
         $(function(){
             ReviewerAutoComplete('user');
             // custom code mirror
             var codeMirrorInstance = initPullRequestsCodeMirror('#pr-description-input');
 
             var PRDetails = {
               editButton: $('#open_edit_pullrequest'),
               closeButton: $('#close_edit_pullrequest'),
               viewFields: $('#pr-desc, #pr-title'),
               editFields: $('#pr-desc-edit, #pr-title-edit, #pr-save'),
 
               init: function() {
                 var that = this;
                 this.editButton.on('click', function(e) { that.edit(); });
                 this.closeButton.on('click', function(e) { that.view(); });
               },
 
               edit: function(event) {
                 this.viewFields.hide();
                 this.editButton.hide();
                 this.editFields.show();
                 codeMirrorInstance.refresh();
               },
 
               view: function(event) {
                 this.editFields.hide();
                 this.closeButton.hide();
                 this.viewFields.show();
               }
             };
 
             var ReviewersPanel = {
               editButton: $('#open_edit_reviewers'),
               closeButton: $('#close_edit_reviewers'),
               addButton: $('#add_reviewer_input'),
               removeButtons: $('.reviewer_member_remove'),
 
               init: function() {
                 var that = this;
                 this.editButton.on('click', function(e) { that.edit(); });
                 this.closeButton.on('click', function(e) { that.close(); });
               },
 
               edit: function(event) {
                 this.editButton.hide();
                 this.closeButton.show();
                 this.addButton.show();
                 this.removeButtons.css('visibility', 'visible');
               },
 
               close: function(event) {
                 this.editButton.show();
                 this.closeButton.hide();
                 this.addButton.hide();
                 this.removeButtons.css('visibility', 'hidden');
               }
             };
 
             PRDetails.init();
             ReviewersPanel.init();
 
             $('#show-outdated-comments').on('click', function(e){
                 var button = $(this);
                 var outdated = $('.outdated');
                 if (button.html() === "(Show)") {
                   button.html("(Hide)");
                   outdated.show();
                 } else {
                   button.html("(Show)");
                   outdated.hide();
                 }
             });
 
             $('.show-inline-comments').on('change', function(e){
                 var show = 'none';
                 var target = e.currentTarget;
                 if(target.checked){
                     show = ''
                 }
                 var boxid = $(target).attr('id_for');
                 var comments = $('#{0} .inline-comments'.format(boxid));
                 var fn_display = function(idx){
                    $(this).css('display', show);
                 };
                 $(comments).each(fn_display);
                 var btns = $('#{0} .inline-comments-button'.format(boxid));
                 $(btns).each(fn_display);
             });
 
             // inject comments into their proper positions
             var file_comments = $('.inline-comment-placeholder');
             %if c.pull_request.is_closed():
                 renderInlineComments(file_comments, false);
             %else:
                 renderInlineComments(file_comments, true);
             %endif
             var commentTotals = {};
             $.each(file_comments, function(i, comment) {
                 var path = $(comment).attr('path');
                 var comms = $(comment).children().length;
                 if (path in commentTotals) {
                     commentTotals[path] += comms;
                 } else {
                     commentTotals[path] = comms;
                 }
             });
             $.each(commentTotals, function(path, total) {
                 var elem = $('.comment-bubble[data-path="'+ path +'"]');
                 elem.css('visibility', 'visible');
                 elem.html(elem.html() + ' ' + total );
             });
 
             $('#merge_pull_request_form').submit(function() {
                 if (!$('#merge_pull_request').attr('disabled')) {
                     $('#merge_pull_request').attr('disabled', 'disabled');
                 }
                 return true;
             });
 
             $('#edit_pull_request').on('click', function(e){
                 var title = $('#pr-title-input').val();
                 var description = codeMirrorInstance.getValue();
                 editPullRequest(
                     "${c.repo_name}", "${c.pull_request.pull_request_id}",
                     title, description);
             });
 
             $('#update_pull_request').on('click', function(e){
                 updateReviewers(undefined, "${c.repo_name}", "${c.pull_request.pull_request_id}");
             });
 
             $('#update_commits').on('click', function(e){
                 var isDisabled = !$(e.currentTarget).attr('disabled');
                 $(e.currentTarget).text(_gettext('Updating...'));
                 $(e.currentTarget).attr('disabled', 'disabled');
                 if(isDisabled){
                     updateCommits("${c.repo_name}", "${c.pull_request.pull_request_id}");
                 }
 
             });
             // fixing issue with caches on firefox
             $('#update_commits').removeAttr("disabled");
 
             $('#close_pull_request').on('click', function(e){
                 closePullRequest("${c.repo_name}", "${c.pull_request.pull_request_id}");
             });
 
             $('.show-inline-comments').on('click', function(e){
                 var boxid = $(this).attr('data-comment-id');
                 var button = $(this);
 
                 if(button.hasClass("comments-visible")) {
                   $('#{0} .inline-comments'.format(boxid)).each(function(index){
                     $(this).hide();
                   })
                   button.removeClass("comments-visible");
                 } else {
                   $('#{0} .inline-comments'.format(boxid)).each(function(index){
                     $(this).show();
                   })
                   button.addClass("comments-visible");
                 }
             });
         })
       </script>
 
   </div>
 </div>
 
 </%def>