# -*- coding: utf-8 -*-

"""

    rhodecode.controllers.compare

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    compare controller for pylons showing differences between two

    repos, branches, bookmarks or tips

    :created_on: May 6, 2012

    :author: marcink

    :copyright: (C) 2010-2012 Marcin Kuzminski <marcin@python-works.com>

    :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

from webob.exc import HTTPNotFound

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.vcs.exceptions import EmptyRepositoryError, RepositoryError

from rhodecode.lib import helpers as h

from rhodecode.lib.base import BaseRepoController, render

from rhodecode.lib.auth import LoginRequired, HasRepoPermissionAnyDecorator

from rhodecode.lib import diffs

from rhodecode.model.db import Repository

from rhodecode.model.pull_request import PullRequestModel

from webob.exc import HTTPBadRequest

from rhodecode.lib.diffs import LimitedDiffContainer

from rhodecode.lib.vcs.backends.base import EmptyChangeset

log = logging.getLogger(__name__)

class CompareController(BaseRepoController):

    @LoginRequired()

    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',

                                   'repository.admin')

    def __before__(self):

        super(CompareController, self).__before__()

    def __get_cs_or_redirect(self, rev, repo, redirect_after=True,

                             partial=False):

        """

        Safe way to get changeset if error occur it redirects to changeset with

        proper message. If partial is set then don't do redirect raise Exception

        instead

        :param rev: revision to fetch

        :param repo: repo instance

        """

        try:

            type_, rev = rev

            return repo.scm_instance.get_changeset(rev)

        except EmptyRepositoryError, e:

            if not redirect_after:

                return None

            h.flash(h.literal(_('There are no changesets yet')),

                    category='warning')

            redirect(url('summary_home', repo_name=repo.repo_name))

        except RepositoryError, e:

            log.error(traceback.format_exc())

            h.flash(str(e), category='warning')

            if not partial:

                redirect(h.url('summary_home', repo_name=repo.repo_name))

            raise HTTPBadRequest()

    def index(self, org_ref_type, org_ref, other_ref_type, other_ref):

        org_repo = c.rhodecode_db_repo.repo_name

        org_ref = (org_ref_type, org_ref)

        other_ref = (other_ref_type, other_ref)

        other_repo = request.GET.get('other_repo', org_repo)

        c.fulldiff = fulldiff = request.GET.get('fulldiff')

        rev_start = request.GET.get('rev_start')

        rev_end = request.GET.get('rev_end')

            repo_name=other_repo,

            org_ref_type=other_ref[0], org_ref=other_ref[1],

            other_repo=org_repo,

            other_ref_type=org_ref[0], other_ref=org_ref[1])

        org_repo = Repository.get_by_repo_name(org_repo)

        other_repo = Repository.get_by_repo_name(other_repo)

        self.__get_cs_or_redirect(rev=org_ref, repo=org_repo, partial=partial)

        self.__get_cs_or_redirect(rev=other_ref, repo=other_repo, partial=partial)

        if org_repo is None:

            log.error('Could not find org repo %s' % org_repo)

            raise HTTPNotFound

        if other_repo is None:

            log.error('Could not find other repo %s' % other_repo)

            raise HTTPNotFound

        if org_repo != other_repo and h.is_git(org_repo):

            log.error('compare of two remote repos not available for GIT REPOS')

            raise HTTPNotFound

        if org_repo.scm_instance.alias != other_repo.scm_instance.alias:

            log.error('compare of two different kind of remote repos not available')

            raise HTTPNotFound

        c.org_repo = org_repo

        c.other_repo = other_repo

        c.org_ref = org_ref[1]

        c.other_ref = other_ref[1]

        c.org_ref_type = org_ref[0]

        c.other_ref_type = other_ref[0]

        if rev_start and rev_end:

            # swap revs with cherry picked ones, save them for display

            #org_ref = ('rev', rev_start)

            #other_ref = ('rev', rev_end)

            c.org_ref = rev_start[:12]

            c.other_ref = rev_end[:12]

            # get parent of

            # rev start to include it in the diff

            _cs = other_repo.scm_instance.get_changeset(rev_start)

            rev_start = _cs.parents[0].raw_id if _cs.parents else EmptyChangeset().raw_id

            org_ref = ('rev', rev_start)

            other_ref = ('rev', rev_end)

            #if we cherry pick it's not remote, make the other_repo org_repo

            org_repo = other_repo

        c.cs_ranges, ancestor = PullRequestModel().get_compare_data(

            org_repo, org_ref, other_repo, other_ref)

        c.statuses = c.rhodecode_db_repo.statuses([x.raw_id for x in

                                                   c.cs_ranges])

        if partial:

            return render('compare/compare_cs.html')

        if ancestor and org_repo != other_repo:

            # case we want a simple diff without incoming changesets,

            # previewing what will be merged.

            # Make the diff on the forked repo, with

            # revision that is common ancestor

            log.debug('Using ancestor %s as org_ref instead of %s'

                      % (ancestor, org_ref))

            org_ref = ('rev', ancestor)

            org_repo = other_repo

        diff_limit = self.cut_off_limit if not fulldiff else None

        _diff = diffs.differ(org_repo, org_ref, other_repo, other_ref)

        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=False, parsed_lines=[f])

            c.changes[fid] = [f['operation'], f['filename'], diff]

        return render('compare/compare_diff.html')

        rev_start = request.POST.get('rev_start')

        rev_end = request.POST.get('rev_end')

        if rev_start and rev_end:

            # this is swapped to simulate that rev_end is a revision from

            # parent of the fork

            org_ref = 'rev:%s:%s' % (rev_end, rev_end)

            other_ref = 'rev:%s:%s' % (rev_start, rev_start)

        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:

        """

        rev_start = request.GET.get('rev_start')

        rev_end = request.GET.get('rev_end')

        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 book 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]

        other_ref = ('rev', getattr(c.cs_ranges[0].parents[0]

                                  if c.cs_ranges[0].parents

                                  else EmptyChangeset(), 'raw_id'))

        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

        _diff = diffs.differ(org_repo, other_ref, other_repo, org_ref)

        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:

            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

        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()

        update_after_clone=False,

        fork_parent_id=Repository.get_by_repo_name(_REPO),

    )

    RepoModel().create_fork(form_data, cur_user=TEST_USER_ADMIN_LOGIN)

    Session().commit()

    return Repository.get_by_repo_name(fork_name)

def _commit_change(repo, filename, content, message, vcs_type, parent=None, newfile=False):

    repo = Repository.get_by_repo_name(repo)

    _cs = parent

    if not parent:

        _cs = EmptyChangeset(alias=vcs_type)

    if newfile:

        cs = ScmModel().create_node(

            repo=repo.scm_instance, repo_name=repo.repo_name,

            cs=_cs, user=TEST_USER_ADMIN_LOGIN,

            author=TEST_USER_ADMIN_LOGIN,

            message=message,

            content=content,

            f_path=filename

        )

    else:

        cs = ScmModel().commit_change(

            repo=repo.scm_instance, repo_name=repo.repo_name,

            cs=parent, user=TEST_USER_ADMIN_LOGIN,

            author=TEST_USER_ADMIN_LOGIN,

            message=message,

            content=content,

            f_path=filename

        )

    return cs

class TestCompareController(TestController):

    def setUp(self):

        self.r1_id = None

        self.r2_id = None

    def tearDown(self):

        if self.r2_id:

            RepoModel().delete(self.r2_id)

        if self.r1_id:

            RepoModel().delete(self.r1_id)

        Session().commit()

        Session.remove()

    def test_compare_forks_on_branch_extra_commits_hg(self):

        self.log_user()

        repo1 = RepoModel().create_repo(repo_name='one', repo_type='hg',

                                        description='diff-test',

                                        owner=TEST_USER_ADMIN_LOGIN)

        Session().commit()

        self.r1_id = repo1.repo_id

        #commit something !

        cs0 = _commit_change(repo1.repo_name, filename='file1', content='line1\n',

                             message='commit1', vcs_type='hg', parent=None, newfile=True)

        #fork this repo

        repo2 = _fork_repo('one-fork', 'hg', parent='one')

        self.r2_id = repo2.repo_id

        #add two extra commit into fork

        cs1 = _commit_change(repo2.repo_name, filename='file1', content='line1\nline2\n',

                             message='commit2', vcs_type='hg', parent=cs0)

        cs2 = _commit_change(repo2.repo_name, filename='file1', content='line1\nline2\nline3\n',

                             message='commit3', vcs_type='hg', parent=cs1)

        rev1 = 'default'

        rev2 = 'default'

        response = self.app.get(url(controller='compare', action='index',

                                    repo_name=repo1.repo_name,

                                    org_ref_type="branch",

                                    org_ref=rev2,

                                    other_repo=repo2.repo_name,

                                    other_ref_type="branch",

                                    other_ref=rev1,

                                    ))

        response.mustcontain('%s@%s -> %s@%s' % (repo1.repo_name, rev2, repo2.repo_name, rev1))

        response.mustcontain("""Showing 2 commits""")

        response.mustcontain("""1 file changed with 2 insertions and 0 deletions""")

        response.mustcontain("""<div class="message tooltip" title="commit2" style="white-space:normal">commit2</div>""")

        response.mustcontain("""<div class="message tooltip" title="commit3" style="white-space:normal">commit3</div>""")

        response.mustcontain("""<a href="/%s/changeset/%s">r1:%s</a>""" % (repo2.repo_name, cs1.raw_id, cs1.short_id))

        response.mustcontain("""<a href="/%s/changeset/%s">r2:%s</a>""" % (repo2.repo_name, cs2.raw_id, cs2.short_id))

        ## files

        response.mustcontain("""<a href="/%s/compare/branch@%s...branch@%s?other_repo=%s#C--826e8142e6ba">file1</a>""" % (repo1.repo_name, rev2, rev1, repo2.repo_name))

        #swap

    def test_compare_forks_on_branch_extra_commits_origin_has_incomming_hg(self):

        self.log_user()

        repo1 = RepoModel().create_repo(repo_name='one', repo_type='hg',

                                        description='diff-test',

                                        owner=TEST_USER_ADMIN_LOGIN)

        Session().commit()

        self.r1_id = repo1.repo_id

        #commit something !

        cs0 = _commit_change(repo1.repo_name, filename='file1', content='line1\n',

                             message='commit1', vcs_type='hg', parent=None, newfile=True)

        #fork this repo

        repo2 = _fork_repo('one-fork', 'hg', parent='one')

        self.r2_id = repo2.repo_id

        #now commit something to origin repo

        cs1_prim = _commit_change(repo1.repo_name, filename='file2', content='line1file2\n',

                                  message='commit2', vcs_type='hg', parent=cs0, newfile=True)

        #add two extra commit into fork

        cs1 = _commit_change(repo2.repo_name, filename='file1', content='line1\nline2\n',

                             message='commit2', vcs_type='hg', parent=cs0)

        cs2 = _commit_change(repo2.repo_name, filename='file1', content='line1\nline2\nline3\n',

                             message='commit3', vcs_type='hg', parent=cs1)

        rev1 = 'default'

        rev2 = 'default'

        response = self.app.get(url(controller='compare', action='index',

                                    repo_name=repo1.repo_name,

                                    org_ref_type="branch",

                                    org_ref=rev2,

                                    other_repo=repo2.repo_name,

                                    other_ref_type="branch",

                                    other_ref=rev1,

                                    ))

        response.mustcontain('%s@%s -> %s@%s' % (repo1.repo_name, rev2, repo2.repo_name, rev1))

        response.mustcontain("""Showing 2 commits""")

        response.mustcontain("""1 file changed with 2 insertions and 0 deletions""")

        response.mustcontain("""<div class="message tooltip" title="commit2" style="white-space:normal">commit2</div>""")

        response.mustcontain("""<div class="message tooltip" title="commit3" style="white-space:normal">commit3</div>""")

        response.mustcontain("""<a href="/%s/changeset/%s">r1:%s</a>""" % (repo2.repo_name, cs1.raw_id, cs1.short_id))

        response.mustcontain("""<a href="/%s/changeset/%s">r2:%s</a>""" % (repo2.repo_name, cs2.raw_id, cs2.short_id))

        ## files

        response.mustcontain("""<a href="/%s/compare/branch@%s...branch@%s?other_repo=%s#C--826e8142e6ba">file1</a>""" % (repo1.repo_name, rev2, rev1, repo2.repo_name))

        #swap

    def test_compare_cherry_pick_changesets_from_bottom(self):

#        repo1:

#            cs0:

#            cs1:

#        repo1-fork- in which we will cherry pick bottom changesets

#            cs0:

#            cs1:

#            cs2: x

#            cs3: x

#            cs4: x

#            cs5:

        #make repo1, and cs1+cs2

        self.log_user()

        repo1 = RepoModel().create_repo(repo_name='repo1', repo_type='hg',

                                        description='diff-test',

                                        owner=TEST_USER_ADMIN_LOGIN)

        Session().commit()

        self.r1_id = repo1.repo_id

        #commit something !

        cs0 = _commit_change(repo1.repo_name, filename='file1', content='line1\n',

                             message='commit1', vcs_type='hg', parent=None,

                             newfile=True)

        cs1 = _commit_change(repo1.repo_name, filename='file1', content='line1\nline2\n',

                             message='commit2', vcs_type='hg', parent=cs0)

        #fork this repo

        repo2 = _fork_repo('repo1-fork', 'hg', parent='repo1')

        self.r2_id = repo2.repo_id

        #now make cs3-6

        cs2 = _commit_change(repo1.repo_name, filename='file1', content='line1\nline2\nline3\n',

                             message='commit3', vcs_type='hg', parent=cs1)

        cs3 = _commit_change(repo1.repo_name, filename='file1', content='line1\nline2\nline3\nline4\n',

                             message='commit4', vcs_type='hg', parent=cs2)

        cs4 = _commit_change(repo1.repo_name, filename='file1', content='line1\nline2\nline3\nline4\nline5\n',

                             message='commit5', vcs_type='hg', parent=cs3)

        cs5 = _commit_change(repo1.repo_name, filename='file1', content='line1\nline2\nline3\nline4\nline5\nline6\n',

                             message='commit6', vcs_type='hg', parent=cs4)

        rev1 = 'tip'

        rev2 = 'tip'

        response = self.app.get(url(controller='compare', action='index',

                                    repo_name=repo2.repo_name,

                                    org_ref_type="tag",

                                    org_ref=rev1,

                                    other_repo=repo1.repo_name,

                                    other_ref_type="tag",

                                    other_ref=rev2,

                                    rev_start=cs2.raw_id,

                                    rev_end=cs4.raw_id,

                                    ))

        response.mustcontain('%s@%s -> %s@%s' % (repo2.repo_name, cs2.short_id, repo1.repo_name, cs4.short_id))

        response.mustcontain("""Showing 3 commits""")

        response.mustcontain("""1 file changed with 3 insertions and 0 deletions""")

        response.mustcontain("""<div class="message tooltip" title="commit3" style="white-space:normal">commit3</div>""")

        response.mustcontain("""<div class="message tooltip" title="commit4" style="white-space:normal">commit4</div>""")

        response.mustcontain("""<div class="message tooltip" title="commit5" style="white-space:normal">commit5</div>""")

        response.mustcontain("""<a href="/%s/changeset/%s">r2:%s</a>""" % (repo1.repo_name, cs2.raw_id, cs2.short_id))

        response.mustcontain("""<a href="/%s/changeset/%s">r3:%s</a>""" % (repo1.repo_name, cs3.raw_id, cs3.short_id))

        response.mustcontain("""<a href="/%s/changeset/%s">r4:%s</a>""" % (repo1.repo_name, cs4.raw_id, cs4.short_id))

        ## files

        response.mustcontain("""#C--826e8142e6ba">file1</a>""")

    def test_compare_cherry_pick_changesets_from_top(self):

#        repo1:

#            cs0:

#            cs1:

#        repo1-fork- in which we will cherry pick bottom changesets

#            cs0:

#            cs1:

#            cs2:

#            cs3: x

#            cs4: x

#            cs5: x

#

        #make repo1, and cs1+cs2

        self.log_user()

        repo1 = RepoModel().create_repo(repo_name='repo1', repo_type='hg',

                                        description='diff-test',

                                        owner=TEST_USER_ADMIN_LOGIN)

        Session().commit()

        self.r1_id = repo1.repo_id

        #commit something !

        cs0 = _commit_change(repo1.repo_name, filename='file1', content='line1\n',

                             message='commit1', vcs_type='hg', parent=None,

                             newfile=True)

        cs1 = _commit_change(repo1.repo_name, filename='file1', content='line1\nline2\n',

                             message='commit2', vcs_type='hg', parent=cs0)

        #fork this repo

        repo2 = _fork_repo('repo1-fork', 'hg', parent='repo1')