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# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
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from pkg_resources import iter_entry_points
from tg import expose
from paste.deploy.converters import aslist
from formencode import validators as fev
from ming.utils import LazyProperty
from allura.controllers import BaseController
class ProjectImporterDispatcher(BaseController):
def __init__(self, neighborhood, *a, **kw):
super(ProjectImporterDispatcher, self).__init__(*a, **kw)
self.neighborhood = neighborhood
@expose()
def _lookup(self, source, *rest):
for ep in iter_entry_points('allura.project_importers', source):
return ep.load()(self.neighborhood), rest
class ProjectImporter(BaseController):
source = None
@LazyProperty
def tool_importers(self):
tools = {}
for ep in iter_entry_points('allura.importers'):
epv = ep.load()
if epv.source == self.source:
tools[ep.name] = epv()
return tools
def index(self, **kw):
"""
Override and expose this view to present the project import form.
The template used by this view should extend the base template in:
jinja:forgeimporters:templates/project_base.html
This will list the available tool importers. Other project fields
(e.g., project_name) should go in the project_fields block.
"""
raise NotImplemented
def process(self, tools=None, **kw):
"""
Override and expose this to handle a project import.
This should at a minimum create the stub project with the appropriate
tools installed and redirect to the new project, presumably with a
message indicating that some data will not be available immediately.
"""
raise NotImplemented
class ToolImporter(object):
target_app = None # app or list of apps
source = None # string description of source, must match project importer
controller = None
@classmethod
def by_name(self, name):
for ep in iter_entry_points('allura.importers', name):
return ep.load()()
@classmethod
def by_app(self, app):
importers = {}
for ep in iter_entry_points('allura.importers'):
importer = ep.load()
if app in aslist(importer.target_app):
importers[ep.name] = importer()
return importers
def import_tool(self, project=None, mount_point=None):
"""
Override this method to perform the tool import.
"""
raise NotImplementedError
@property
def tool_label(self):
return getattr(aslist(self.target_app)[0], 'tool_label', None)
@property
def tool_description(self):
return getattr(aslist(self.target_app)[0], 'tool_description', None)
class ToolsValidator(fev.Set):
def __init__(self, source, *a, **kw):
super(ToolsValidator, self).__init__(*a, **kw)
self.source = source
def to_python(self, value, state=None):
value = super(ToolsValidator, self).to_python(value, state)
valid = []
invalid = []
for name in value:
importer = ToolImporter.by_name(name)
if importer is not None and importer.source == self.source:
valid.append(name)
else:
invalid.append(name)
if invalid:
pl = 's' if len(invalid) > 1 else ''
raise fev.Invalid('Invalid tool%s selected: %s' % (pl, ', '.join(invalid)), value, state)
return valid