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Viewing changes to loggerhead/controllers/changelog_ui.py

[rs=thumper][!log] Michael Hudson's branch to apply the new
        loggerhead theme - failed previously due to transient PQM issues

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loggerhead/controllers/changelog_ui.py
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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#
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import time
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from paste.httpexceptions import HTTPServerError
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from paste.request import path_info_pop
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from loggerhead import util
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from loggerhead.templatefunctions import templatefunctions
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from turbosimpletal import TurboZpt
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t = TurboZpt()
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tt = t.load_template('loggerhead.templates.changelog')
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class ChangeLogUI (object):
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    def __init__(self, branch):
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        # BranchView object
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        self._branch = branch
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        self.log = branch.log
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    def default(self, request, response):
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        z = time.time()
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        h = self._branch.history
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        #config = self._branch.config
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        h._branch.lock_read()
 
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from loggerhead.controllers import TemplatedBranchView
 
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class ChangeLogUI(TemplatedBranchView):
 
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    template_path = 'loggerhead.templates.changelog'
 
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    def get_values(self, h, args, kw, headers):
 
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        if args:
 
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            revid = h.fix_revid(args[0])
 
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        else:
 
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            revid = None
 
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        filter_file_id = kw.get('filter_file_id', None)
 
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        query = kw.get('q', None)
 
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        start_revid = h.fix_revid(kw.get('start_revid', None))
 
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        orig_start_revid = start_revid
 
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        pagesize = 20#int(config.get('pagesize', '20'))
 
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        search_failed = False
 
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        try:
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            kw = request.GET
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            arg = path_info_pop(request.environ)
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            if arg:
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                revid = h.fix_revid(arg)
 
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            revid, start_revid, revid_list = h.get_view(
 
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                revid, start_revid, filter_file_id, query)
 
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            util.set_context(kw)
 
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            if (query is not None) and (len(revid_list) == 0):
 
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                search_failed = True
 
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            if len(revid_list) == 0:
 
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                scan_list = revid_list
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            else:
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                revid = None
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            filter_file_id = kw.get('filter_file_id', None)
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            query = kw.get('q', None)
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            start_revid = h.fix_revid(kw.get('start_revid', None))
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            orig_start_revid = start_revid
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            pagesize = 20#int(config.get('pagesize', '20'))
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            search_failed = False
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            try:
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                revid, start_revid, revid_list = h.get_view(
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                    revid, start_revid, filter_file_id, query)
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                util.set_context(kw)
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                if (query is not None) and (len(revid_list) == 0):
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                    search_failed = True
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                if len(revid_list) == 0:
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                    scan_list = revid_list
 
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                if revid in revid_list: # XXX is this always true?
 
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                    i = revid_list.index(revid)
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                else:
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                    if revid in revid_list: # XXX is this always true?
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                        i = revid_list.index(revid)
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                    else:
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                        i = None
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                    scan_list = revid_list[i:]
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                change_list = scan_list[:pagesize]
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                changes = list(h.get_changes(change_list))
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                h.add_changes(changes)
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            except:
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                self.log.exception('Exception fetching changes')
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                raise HTTPServerError('Could not fetch changes')
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            navigation = util.Container(
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                pagesize=pagesize, revid=revid, start_revid=start_revid,
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                revid_list=revid_list, filter_file_id=filter_file_id,
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                scan_url='/changes', branch=self._branch, feed=True)
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            if query is not None:
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                navigation.query = query
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            util.fill_in_navigation(navigation)
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            # add parent & merge-point branch-nick info, in case it's useful
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            h.get_branch_nicks(changes)
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            # does every change on this page have the same committer?  if so,
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            # tell the template to show committer info in the "details block"
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            # instead of on each line.
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            all_same_author = True
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            if changes:
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                author = changes[0].author
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                for e in changes[1:]:
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                    if e.author != author:
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                        all_same_author = False
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                        break
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            def url(pathargs, **kw):
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                return self._branch.url(pathargs, **kw)
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            vals = {
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                'branch': self._branch,
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                'changes': changes,
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                'util': util,
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                'history': h,
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                'revid': revid,
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                'navigation': navigation,
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                'filter_file_id': filter_file_id,
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                'start_revid': start_revid,
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                'viewing_from': (orig_start_revid is not None) and (orig_start_revid != h.last_revid),
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                'query': query,
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                'search_failed': search_failed,
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                'all_same_author': all_same_author,
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                'url': self._branch.context_url,
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            }
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            vals.update(templatefunctions)
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            self.log.info('/changes %r: %r secs' % (revid, time.time() - z))
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            response.headers['Content-Type'] = 'text/html'
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            tt.expand_(response, **vals)
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        finally:
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            h._branch.unlock()
 
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                    i = None
 
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                scan_list = revid_list[i:]
 
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            change_list = scan_list[:pagesize]
 
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            changes = list(h.get_changes(change_list))
 
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            h.add_changes(changes)
 
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        except:
 
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            self.log.exception('Exception fetching changes')
 
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            raise HTTPServerError('Could not fetch changes')
 
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        navigation = util.Container(
 
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            pagesize=pagesize, revid=revid, start_revid=start_revid,
 
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            revid_list=revid_list, filter_file_id=filter_file_id,
 
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            scan_url='/changes', branch=self._branch, feed=True, history=h)
 
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        if query is not None:
 
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            navigation.query = query
 
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        util.fill_in_navigation(navigation)
 
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        # add parent & merge-point branch-nick info, in case it's useful
 
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        h.get_branch_nicks(changes)
 
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        # does every change on this page have the same committer?  if so,
 
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        # tell the template to show committer info in the "details block"
 
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        # instead of on each line.
 
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        all_same_author = True
 
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        if changes:
 
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            author = changes[0].author
 
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            for e in changes[1:]:
 
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                if e.author != author:
 
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                    all_same_author = False
 
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                    break
 
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        return {
 
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            'branch': self._branch,
 
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            'changes': changes,
 
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            'util': util,
 
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            'history': h,
 
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            'revid': revid,
 
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            'navigation': navigation,
 
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            'filter_file_id': filter_file_id,
 
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            'start_revid': start_revid,
 
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            'viewing_from': (orig_start_revid is not None) and (orig_start_revid != h.last_revid),
 
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            'query': query,
 
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            'search_failed': search_failed,
 
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            'all_same_author': all_same_author,
 
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            'url': self._branch.context_url,
 
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        }