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Viewing changes to loggerhead/apps/branch.py

  • Committer: Michael Hudson
  • Date: 2007-11-19 08:55:10 UTC
  • mto: This revision was merged to the branch mainline in revision 142.
  • Revision ID: michael.hudson@canonical.com-20071119085510-ossv2rsqdcg7ikzh
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loggerhead/apps/branch.py
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import logging
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import urllib
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from paste import request
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from paste import httpexceptions
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from paste.wsgiwrappers import WSGIRequest, WSGIResponse
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from loggerhead.apps import static_app
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from loggerhead.changecache import FileChangeCache
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from loggerhead.controllers.changelog_ui import ChangeLogUI
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from loggerhead.controllers.inventory_ui import InventoryUI
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from loggerhead.controllers.annotate_ui import AnnotateUI
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from loggerhead.controllers.revision_ui import RevisionUI
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from loggerhead.controllers.atom_ui import AtomUI
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from loggerhead.controllers.download_ui import DownloadUI
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from loggerhead.controllers.bundle_ui import BundleUI
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from loggerhead.history import History
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from loggerhead import util
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logging.basicConfig()
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logging.getLogger().setLevel(logging.DEBUG)
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class BranchWSGIApp(object):
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    def __init__(self, branch_url, friendly_name=None, config={}):
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        self.branch_url = branch_url
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        self._history = None
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        self._config = config
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        self.friendly_name = friendly_name
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        self.log = logging.getLogger(friendly_name)
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    @property
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    def history(self):
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        if (self._history is None) or self._history.out_of_date():
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            self.log.debug('Reload branch history...')
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            _history = self._history = History.from_folder(self.branch_url)
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            cache_path = self._config.get('cachepath', None)
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            if cache_path is not None:
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                _history.use_file_cache(FileChangeCache(_history, cache_path))
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        return self._history
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    def url(self, *args, **kw):
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        if isinstance(args[0], list):
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            args = args[0]
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        qs = []
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        for k, v in kw.iteritems():
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            if v is not None:
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                qs.append('%s=%s'%(k, urllib.quote(v)))
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        qs = '&'.join(qs)
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        return request.construct_url(
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            self._environ, script_name=self._url_base,
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            path_info='/'.join(args),
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            querystring=qs)
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    def context_url(self, *args, **kw):
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        kw = util.get_context(**kw)
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        return self.url(*args, **kw)
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    def static_url(self, path):
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        return self._static_url_base + path
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    controllers_dict = {
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        'annotate': AnnotateUI,
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        'changes': ChangeLogUI,
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        'files': InventoryUI,
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        'revision': RevisionUI,
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        'download': DownloadUI,
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        'atom': AtomUI,
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        'bundle': BundleUI,
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        }
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    def last_updated(self):
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        h = self.history
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        change = h.get_changes([ h.last_revid ])[0]
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        return change.date
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    def branch_url(self):
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        return self.history.get_config().get_user_option('public_branch')
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    def app(self, environ, start_response):
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        req = WSGIRequest(environ)
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        response = WSGIResponse()
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        response.headers['Content-Type'] = 'text/plain'
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        self._url_base = environ['SCRIPT_NAME']
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        self._static_url_base = environ.get('loggerhead.static.url')
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        if self._static_url_base is None:
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            self._static_url_base = self._url_base
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        self._environ = environ
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        path = request.path_info_pop(environ)
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        if not path:
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            raise httpexceptions.HTTPMovedPermanently(
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                self._url_base + '/changes')
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        if path == 'static':
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            return static_app(environ, start_response)
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        cls = self.controllers_dict.get(path)
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        if cls is None:
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            raise httpexceptions.HTTPNotFound()
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        c = cls(self)
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        c.default(req, response)
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        return response(environ, start_response)