Commit c25999d7 authored by Jérome Perrin's avatar Jérome Perrin

ERP5Type/dynamic: support temporary overriding component with a local file

Run zope with ERP5_COMPONENT_OVERRIDE_PATH set to a : separated list of
path containing components files to load components from files instead
of portal_components.

This can be used to repair zope after a bad edit of component.
parent 4b895c94
......@@ -30,6 +30,8 @@
# There is absolutely no reason to use relative imports when loading a Component
from __future__ import absolute_import
import errno
import os
import six
import sys
import imp
......@@ -330,11 +332,24 @@ class ComponentDynamicPackage(ModuleType):
component = getattr(site.portal_components, component_id)
relative_url = component.getRelativeUrl()
module_file = '<' + relative_url + '>'
module_fullname = '%s.%s_version.%s' % (self._namespace, version, name)
module = ModuleType(module_fullname, component.getDescription())
source_code_str = component.getTextContent(validated_only=True)
for override_path in os.environ.get('ERP5_COMPONENT_OVERRIDE_PATH', '').split(os.pathsep):
try:
local_override_path = os.path.join(override_path, component.getId() + '.py')
with open(local_override_path) as f:
source_code_str = f.read()
module_file = local_override_path
LOG("component_package", WARNING, "Using local override %s" % local_override_path)
break
except IOError as e:
if e.errno != errno.ENOENT:
raise
version_package = self._getVersionPackage(version)
# All the required objects have been loaded, acquire import lock to modify
......@@ -350,7 +365,7 @@ class ComponentDynamicPackage(ModuleType):
sys.modules[module_fullname_filesystem] = module
# This must be set for imports at least (see PEP 302)
module.__file__ = '<' + relative_url + '>'
module.__file__ = module_file
if coverage.Coverage.current():
if hasattr(component, '_erp5_coverage_filename'):
module.__file__ = component._erp5_coverage_filename
......
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